Inspect Brake Booster – 2006-2012 Mercedes-Benz ML-Class, GL-Class, & R-Class

SEOCONTENT-START

August, 2022 This notice applies to your vehicle, VIN: Inspect Brake Booster NHTSA Recall ID: 22V315 MBUSA ID: 2022050014 & 2022050015 Reminder Notification STOP DRIVE ORDER! STOP DRIVE – Your vehicle can be towed to an authorized dealer and a mobility solution provided or a mobile repair may be possible • An Inspect ion procedure is available • Schedule an appointment with your authorized Mercedes-Benz dealership as soon as possible. • This repair will be provided FREE of charge, Dear Mercedes-Benz Owner: This notice is being sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has decided that a defect which relates to motor vehicle safety exists in certain Model Year (“MY”) 2006-2011 ML-Class and MY2006-2012 GL-Class and R-Class vehicles. Our records indicate that your vehicle is included in the affected population of vehicles. The original communication for this recall was sent to the owner who was on file as of June 2022. ~ What is the issue? Moisture may accumulate and cause corrosion in the brake booster housing unit, which can result in reduced brake performance. In some cases of severe corrosion, a particularly strong or hard braking application may cause mechanical damage in the brake booster, which can result in brake failure. In this case, it would not be possible to decelerate the vehicle via the brake pedal. Reduced brake performance or brake failure can increase the risk of a crash or injury. Owners are advised not to drive their vehicles until the inspection is performed. What will your Mercedes-Benz Dealership do? An authorized Mercedes-Benz dealer will inspect the brake booster housing. While the repair time may be less than 1 hour, your dealer can provide you with a better estimate of the overall time for this inspection. After the inspection, your vehicle will fall into one of three categories: Category 1: Vehicles will have an aesthetic rubber sleeve removed to eliminate further risk of corrosion. Vehicles that do not show advanced corrosion may continue to be driven with no further action. Category 2: If, after the rubber sleeve is removed advanced corrosion is present, an additional diagnostic test will be performed to ensure the functionality of the brake booster. If the vehicle passes inspection, it may be driven but must return for an additional test and repair within two years. A certificate will be provided by the performing dealership. When the brake booster parts are available or the vehicle needs to be re-tested, an additional reminder owner notification letter will be mailed. Category 3: Vehicles that do not pass the additional diagnostic test will require a brake booster replacement and the stop drive will remain in effect. At this time, parts are not available for an immediate replacement. When parts are available, an additional owner notification letter will be sent. In the event your vehicle does not pass the diagnostic test, the vehicle may be stored at your residence or be towed to a dealership storage location. If the inspection was performed via mobile service and you choose to have the vehicle towed to a storage location, please contact the dealership to initiate the tow. If the dealership is unable to assist, please call 1-888-548-8514 to arrange a tow. In the event a brake booster repair is necessary, your authorized Mercedes-Benz dealer will help coordinate an individualized mobility solution since replacement parts are not available at this time. This service will be provided free of charge. How do I schedule an inspection? MBUSA strongly encourages you to schedule a mobile inspection with your local dealer. In the event a mobile inspection cannot be performed, a tow to your nearest authorized Mercedes-Benz dealership will be provided free of charge. To locate authorized dealers see www.MBUSA.com/recall. Please mention you are scheduling an appointment to inspect the brake booster housing under Recall Campaign #2022050014 or 2022050015. You may be asked for your 17-digit Vehicle Identification Number (VIN) which for your convenience is located above your name at the top of this letter. I need alternate transportation, what are my options? When available, a dealer may be able to provide a loaner vehicle. If no loaner vehicles are available, other solutions may be offered such as taxi/rideshare, public transportation cost reimbursement, and/or rental reimbursement. Please discuss with your dealer the conditions and availability of each option. Will this affect other brake system components? This recall relates to potential advanced corrosion on the brake booster housing. If other brake system component(s) are in need of repair /replacement such that they would impair or hinder inspecting the brake booster housing, the repair/replacement must be completed first to allow the brake booster housing to be inspected. These parts and labor costs are not covered under this recall and are the responsibility of the owner. I no longer feel safe in my car. What if I no longer want to drive this vehicle? We ensure you that the inspection program has been thoroughly vetted . If you still have concerns please contact our customer service center at 1-888-548-8514. Steps to take. • Find your nearest authorized Mercedes-Benz dealership at mbusa.com/ recall to schedule your recall inspection. • Please mention you are scheduling an appointment for the Mercedes-Benz Brake Booster Recall Campaign 2022050014 or 2022050015. • You may be asked for your VIN, which for your convenience is located at the top of this letter. • Based on the outcome of your vehicle’s inspection, further steps will be provided as outlined above. What if I no longer own or drive the vehicle? In the event you no longer own or drive this vehicle, please visit mbusa.com/ recalls to update your information by submitting your VIN using our VIN recall lookup tool and filling out the “no longer own” section on the website. If possible, please provide any contact information of the current owner/ driver so we can contact them. Additional Information for Owners: A VIN-based recall lookup tool is available at mbusa.com/ recalls, which can be used to check whether a vehicle has been subject to a safety recall, or had the remedy performed. Should you have any questions or encounter any difficulty regarding this Recall Campaign, please contact an authorized Mercedes-Benz dealership. If this is a leased vehicle and the lessor and registered owner receive this notice, please forward this information by first class mail to the lessee within 10 business days to comply with Federal Regulations. Should an authorized Mercedes-Benz dealership be unable to address your concerns please contact us at 1-888-548-8514. We are always happy to hear from you. If an authorized Mercedes-Benz dealer for any reason is unable to remedy the situation without charge, or within a reasonable amount of time, Pursuant to law 49 U.S.C. Chapter 301 , you may submit a complaint to the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, S.E., Washington, D.C. 20590 or call the toll-free Auto Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9 153); or go to https://www.safercar.gov. Reimbursement to Customers for Repairs Performed Prior to Recall If you have already paid to have this recall condition corrected you may be eligible to receive reimbursement. Requests for reimbursement may include parts, labor, fees and taxes. Reimbursement may be limited to the amount the repair would have cost if completed by an authorized Mercedes-Benz dealer. The following documentation must be presented to your dealer for reimbursement. Original or clear copy of all receipts, invoices and/ or repair orders that show: • The name and address of the person who paid for the repair. • The Vehicle Identification Number (VIN) of the vehicle that was repaired. • What problem occurred, what repair was done, when it was done and who repaired it. • The total cost of the repair expense that is being claimed. • Proof of payment of repair (copy of front and back of cancelled check, or copy of credit card receipt). • Reimbursement will be made by check from your dealer. Please speak with you r dealer concerning this matter. Thank you for your cooperation. We apologize for any inconvenience this may have caused and look forward to taking care of this important safety recall immediately. Sincerely, Mercedes-Benz USA

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Updated Recall Campaign Launch Notification – STOP DRIVE

UPDATE: July 22, 2022

Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis IMPORTANT RECALL CAMPAIGN UPDATE STOP DRIVE NOTIFICATION! Please see the attached documents related to the campaign listed above, which include: Topic Page Launch NCU 2 Frequently Asked Questions (FAQ) a. What is this Recall b. Mobility c. Storage d. Reimbursement e. Miscellaneous 3 Work Instructions 7 Warranty Information & Parts Return Instructions 15 Certificate of Passed Initial Diagnostic Brake Test 18 Please note that all customer inquiries should be directed to the Customer Assistance Center at 1-888-548-8514. Sincerely, Gregory Gunther Department Manager, Vehicle Compliance & Analysis TO: Mercedes-Benz Dealer Principals, General Managers, Sales Managers, Service Managers, Parts Managers FROM: Gregory Gunther, Department Manager, Vehicle Compliance and Analysis, Engineering Services RE: Updated Recall Campaign Launch Notification – STOP DRIVE Inspect Brake Booster with Pedal Rework MY07-08 GL-Class, ML-Class, R-Class (X164, W164, 251 platform) UPDATE: July 22, 2022 Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis Recall Campaign Launch Notification July 22, 2022 Campaign No. : NHTSA ID Campaign Desc. : Inspect Brake Booster With Pedal Rework 2022050014 22V315 22P4290006 This is to notify you of an update to the Recall Campaign Launch to inspect the brake booster on 14,123 Model Year (“MY”) 2007-2008 GL-Class, ML-Class, and R-Class (X164, W164 and 251 platform) vehicles. The recall campaign will be visible on the www.safercar.gov website and may generate questions from customers. Affected VINs were flagged in VMI as “OPEN” on May 28, 2022. Background Issue Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2007-2008 ML-Class, GL-Class (W164/X164 platform) and R-Class (251 platform) vehicles, the function of the brake booster might be affected due to advanced corrosion in the joint area of its housing. After extended time in the field and in conjunction with prolonged water exposure, this corrosion might lead to a vacuum leak at the brake booster. If this were to occur, the brake force support might be reduced, leading to an increase in the brake pedal forces required to decelerate the vehicle, and/or increased stopping distances. Additionally, in rare cases of very severe corrosion, it might be possible for a particularly strong or hard brake application to cause mechanical damage in the brake booster, whereby the connection between brake pedal and brake system would fail. In such a very rare case, it would not be possible to decelerate the vehicle via the brake pedal. The risk of a crash or injury would be increased. The function of the parking brake is not affected by this issue. Before the issue occurs, the driver might notice a change in the brake pedal feel and/or hissing/airflow noises when applying the brake pedal. What We’re Doing MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will remove the rubber sleeve from the brake booster housing, check the brake booster on the affected vehicles and, depending on the result of this inspection, replace as necessary. Affected customers will be mailed a recall owner notification letter and instructed to stop driving their vehicles until the inspection process is completed. Parts The inspection procedure is available and can be performed. Parts are not available at this time should they be needed. Once parts are available, certain customers will be informed via a second owner notification letter to have a final repair performed. Vehicles Affected Vehicle Model Year(s) 2007-2008 Vehicle Model GL-Class, ML-Class, R-Class Vehicle Populations Total Recall Population 14,123 Total Vehicles in Dealer Inventory 0 The vehicles will be flagged as “OPEN” and Work Instructions will be available in Star TekInfo. Customers are advised not to drive their vehicle until an inspection is performed. Based on the results, vehicles may continue to be driven if the inspection is passed, or must be grounded if the inspection is not passed. A follow-up campaign will be issued for any vehicle that requires a brake booster replacement. Until such time, a “Pending” campaign will be assigned to these vehicles to ensure vehicle status is reflected in the VIN look-up tools mentioned below. Additionally, given this notice, it is a violation of Federal Law for car rental companies to rent MY 07-08 GL-Class, ML-Class, and R-Class vehicles covered by this notification until the vehicle has been inspected and passed, or grounded until parts become available and the remedy performed. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis FAQs SUMMARY OF RECALL 1. What is the recall about? a. The recall campaign is related to the brake booster housing. Specifically, advanced corrosion may have formed on the housing, which could lead to a vacuum leak and impairment to brake effectiveness. 2. What’s the difference between Campaign 2022050014 and 2022050015. a. The inspection is the same, however, they have different damage codes. So please follow the instructions exactly for the respective campaign for your vehicle. 3. Can I continue to drive the car? a. Your safety is our highest priority. MBUSA advises customers to stop driving the vehicle until the first inspection is performed. Customers will be notified by first class mail to schedule an appointment to have the inspection performed by an authorized dealer. 4. Why are other models not included? a. Only ML- (MY2006 – 2011), GL- (MY2007 – 2012), and R- (MY2006 – 2012) Class vehicles are fitted with the affected brake booster utilizing a rubber sleeve. Other models are not fitted with this rubber sleeve. Affected vehicles have been identified within this recall. 5. What types of repairs or replacements part(s) are needed? a. Affected vehicles will be inspected as a first step. After this inspection, the vehicle will be given 1 of 3 statuses. A. Inspected with no advanced corrosion: The rubber sleeve will be removed. The vehicle can be driven with no further action or customer follow-up required. B. Inspected with advanced corrosion found: A brake efficacy test will be performed. A passed test ensures the tested brake booster can continue to be used and the vehicle driven up to a maximum time limit of 2 years. The dealer will provide a “Certificate of Passed Initial Diagnostic Brake Test” detailing that the test has passed. A new notice will be provided to the owner at a later date to bring the vehicle to an authorized Mercedes-Benz dealership for further inspection and potential replacement of the brake booster. Next Steps/Notes Customer Notification Timeline Owner notification letters will be mailed on or before June 30, 2022. AOMS/SOMS AOMs – This recall may generate questions from your dealers. Please forward this notice to your dealers ASAP. Rental Fleet Partners Affected vehicles in your fleet should not be driven until the inspection has been performed and passed. Please contact your respective MBUSA fleet representative for further information and next steps. For repairs, please contact your preferred MBUSA dealer. While we regret any inconvenience this may cause, MBUSA is determined to maintain a high level of vehicle quality and customer satisfaction. Please refer all customer inquiries to the Customer Assistance Center at 1-888-548-8514. Please anticipate longer than usual wait times to reach an agent as is typical for any recall of large volume. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis C. Inspected with advanced corrosion and brake efficacy test does not pass: The vehicle will require the brake booster housing to be replaced when parts are available. Until then, the vehicle MUST NOT be driven. 6. Will the dealer repair the vehicle with the same part(s)? a. No. Based on the initial inspection, if a replacement of the brake booster is necessary, the part will be removed and replaced with a new part that does not utilize a rubber sleeve. 7. If advanced corrosion is found (status B, question 5), why must I wait two years – can’t the dealer just replace the brake booster housing now? a. Sufficient part quantities are not yet available to offer a complete repair at this time. Mercedes-Benz assures all customers that the tests performed through the inspection procedure confirm that the brake booster will remain functioning normally until such time an additional inspection is deemed necessary within a 2-year period. Mercedes-Benz is working diligently with its suppliers to procure replacement parts as soon as possible. 8. Will the replacement part(s) fail again? a. No. Provided the recall timelines are followed, the inspections and remedial measures performed by your Mercedes-Benz dealership assure you that the recall condition is remedied. 9. How long will the vehicle need to be in the workshop? a. For your convenience, an authorized Mercedes-Benz dealer will offer mobile inspection at your location of choice. Should you request the vehicle be towed to a workshop, the time for the recall will vary and is heavily dependent on towing availability and dealership schedules. The inspection itself will require 1 hour to complete. Your authorized Mercedes-Benz dealer can provide you with a better estimate of the overall time for this inspection. MOBILITY 10. Will the dealer provide a loaner vehicle? a. The dealer may offer to provide a loaner based on loaner vehicle availability. If available, the loaner will be provided free of charge. If no loaner vehicles are available, other solutions will be offered such as taxi/rideshare, public transportation cost reimbursement, and rental reimbursement. See the “Warranty Information” section below for additional information. 11. If I am advised not to drive my vehicle will towing be offered? a. Customers will be notified by first class mail that the inspection can be performed at an authorized dealer. A tow can be completed by the local dealer or by calling 1-888-548-8514. Full details will be available in the owner notification letter. In some locations, a mobile inspection can be performed at a location of the customer’s convenience and towing will not be necessary. All towing will be provided free of charge to complete this recall. 12. Is mobile repair offered for this recall? a. Yes, for your convenience, an authorized Mercedes-Benz dealer will offer mobile inspection at a location of your choice. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis 13. I read a media article that states I should stop driving my vehicle if I own one of the affected vehicles, what should I do? a. A VIN-based recall lookup tool on our MBUSA.com website offers a search feature that will indicate whether a vehicle has been subject to a safety recall. See www.mbusa.com/recall for more details. If your vehicle status is listed as “Recall Currently Pending” or “Open,” the vehicle MUST NOT be driven until the inspection process is performed. Further instructions will be provided based on the results of that inspection. 14. What is Mercedes-Benz going to do for Owners given this inconvenience? a. Mercedes-Benz is committed to the highest level of customer service and while we regret the inconvenience, the safety of our customers is paramount. Mobility solutions and/or reimbursement for mobility will be offered for the duration the customer’s vehicle is affected under this “stop drive” recall. See the “Warranty Information” section below for further information. 15. For cars currently at the dealers, should dealers inform their customers and ensure dealer staff do not drive the vehicle? a. For customers Yes, dealers should inform their customers that the vehicle is under a stop drive recall. The vehicle can be stored at the dealership, or towed to the customer’s residence free of charge. Please contact the CAC at 1-888-548-8514 to schedule a tow. If the customer needs alternative transportation, a mobility solution will be offered to you by the dealer (See FAQ 4). Reimbursements will be provided up to a maximum of $80 per day. b. For dealer staff Dealer staff must NOT drive the vehicle on public roads. Within the confines of the dealership, the vehicle can be driven up to 20 mph. To claim any expenses related to towing and/or storage, see the “Warranty Information” STORAGE 16. Where will the vehicle be stored? a. Customers may store the vehicle at their residence and are encouraged to request their dealer perform a mobile inspection. Should the vehicle not pass the inspection, the vehicle may be continued to be stored at their residence or at their preferred dealer. REIMBURSEMENTS/OWNER PAY 17. Are Owners responsible for expenses related to the recall? a. No. Parts and labor will be provided free of charge. Alternate mobility solutions will be offered via MBUSA and/or an authorized Mercedes-Benz dealership. If the customer exceeds the limits of what Mercedes-Benz offers, they may be responsible for the additional expenses. 18. I may have paid for repairs related to this recall. Will I receive reimbursement? a. Current and previous owners may be eligible to receive reimbursement if they have had a brake booster replacement due to the conditions specified in this recall. Requests for reimbursement may include parts, labor, fees and taxes. Reimbursement may be limited to the amount the Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis repair would have cost if completed by an authorized Mercedes-Benz dealer. Details will be provided in the recall owner notification letter. 19. What happens if the dealer determines repairs aren’t necessary now but Owners experience concerns related to the recall in the future? Are Owners responsible for diagnostic fees/repair costs? a. Any future owner concerns will be evaluated on an individual basis. Extensive analyses were conducted by Mercedes-Benz AG. Based on these analyses, a test method was developed for the workshops which, among other aspects, ensures the functionality of the brake booster by usage of diagnostic-supported test routines. If the dealer determines based on the inspection that the brake booster does not need to be replaced at this time but the owner experiences recall-related concerns in the future, a re-inspection may be carried out within 2 years to ensure the functionality of the brake booster. Parts and labor associated with the recall are free of charge to the customer. 20. I inspected the vehicle and found other brake components to be in need of repair. a. This recall relates to potential advanced corrosion on the brake booster housing. If other brake system component(s) are in need of repair/replacement such that they would impair or hinder performing the inspection for the recall condition, the parts/system must be rectified prior so the initial inspection may be completed. These parts and labor are not covered under this recall. 21. I received a letter but I no longer own the vehicle. How can I update my ownership information? a. Customers should be directed to the MBUSA recall website at https://www.mbusa.com/en/recall, enter their VIN, and update their contact information. 22. I lost faith in the vehicle and demand MBUSA provide a replacement. a. Such customer inquiries will be evaluated on a case by case basis. Direct the customer to 1-888-548-8514. 23. Can/should dealers wholesale/sell affected used car vehicles? a. No. MBUSA advises dealers not to sell used vehicles subject to this recall until the inspection is completed. 24. While performing the Xentry diagnostic test the technician finds a brake fluid leak, can this be covered under warranty? a. Yes. If while performing the inspection procedure other components fail then this would be claimable on the same line as the recall and considered primary loss. 25. While performing the Xentry diagnostic test, the brake line needed to be repaired. How do I address this? a. Follow AR42.10-P-0020A and utilize flaring kit A000 589 20 99 00 to construct brake lines from bulk stock. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis 26. If the vehicle fails the Xentry diagnostic pressure test, does the RO need to stay open? a. No, close the RO and submit the claim based on the warranty codes provided below. The dealership may choose to open another RO until the parts replacement is complete. 27. The customer wishes to keep driving the vehicle and refuses the repair. How do I handle this situation? a. Customer safety is our top priority at Mercedes-Benz. If the customer insists on driving the vehicle despite the warnings associated with a “stop drive” recall, the following language MUST be added to the Repair Order and initialed by the customer: ______ (Initial Here) ASSUMPTION OF RISK FOR REMOVAL OF VEHICLE. I understand that my vehicle is subject to a “Stop Drive” recall and that continuing to drive my vehicle involves inherent risks and dangers of accidents, property loss or damage, and serious personal injury to me and others, as well as potential financial losses. I have carefully considered the extent of the risks involved, and I voluntarily and freely choose to assume these risks. 28. Is there a point of contact for the dealership, AOM’s, or other field personnel to request technical information or assistance relating specifically to the Xentry diagnostic test? a. The Work Instructions and Xentry diagnostic test have been verified prior to the recall launch. Thoroughly read the instructions, directions, and questions as presented in the Xentry diagnostic brake pressure test steps. If there are still questions after completing the first test , please open a PTSS case for the particular process or direction that is unclear. We do not anticipate any questions relating to the test at this time. 29. The customer wishes to keep driving the vehicle and is refusing to initial the “Assumption of Risk” on the Repair Order. How do I handle this situation? a. Follow the same protocol used at your dealership when a customer refuses services offered. Also, make a notation on the RO that “customer refuses to initial the Assumption of Risk.” A customer signature must be recorded on the RO. Campaign No. 2022050014, May 2022 Revision D 07/21/2022 TO: ALL MERCEDES-BENZ CENTERS SUBJECT: Model GL-Class, ML-Class, and R-Class (X164, W164 and 251 platform) Model Year 2007-2008 Inspect Brake Booster – with Pedal Rework Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2007-2008 ML, GL (W164/X164 platform) and R-Class (251 platform) vehicles, the function of the brake booster might be affected due to advanced corrosion in the joint area of its housing. After extended time in the field and in conjunction with prolonged water exposure, this corrosion might lead to a vacuum leak at the brake booster. If this were to occur, the brake force support might be reduced, leading to an increase in the brake pedal forces required to decelerate the vehicle, and/or increased stopping distances. Additionally, in rare cases of very severe corrosion, it might be possible for a particularly strong or hard brake application to cause mechanical damage in the brake booster, whereby the connection between brake pedal and brake system would fail. In such a very rare case, it would not be possible to decelerate the vehicle via the brake pedal. The risk of a crash or injury would be increased. The function of the parking brake is not affected by this issue. Before the issue occurs, the driver might notice a change in the brake pedal feel and/or hissing/airflow noises when applying the brake pedal. MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will remove the rubber sleeve from the brake booster housing, check the brake booster on the affected vehicles and, depending on the result of this inspection, replace as necessary. Affected customers will be mailed a recall owner notification letter and instructed to stop driving their vehicles until the inspection process is completed. Prior to performing this Campaign:  VMI must always be checked before performing campaigns to verify that the campaign is required on a specific vehicle. Always check for any other open campaigns, and perform accordingly.  Please review the entire Campaign bulletin and follow the repair procedure exactly as described. Approximately 14,123 vehicles are affected. Order No. P-RC-2022050014 This bulletin has been created and maintained in accordance with MBUSA-SLP S423QH001, Document and Data Control, and MBUSA-SLP S424HH001, Control of Quality Record 8 P-RC-2022050014 Inspect Brake Booster Return information for rubber sleeve and quick test has been removed. Existing problems that would hinder the inspection procedure or any subsequent repairs must first be rectified and are the responsibility of the customer. Any associated costs are not claimable and should not be included with the campaign claim. Any primary loss which is a direct result of performing the XENTRY test should be submitted on the same claim as the campaign reimbursement. Before starting work, there must be no fault message present in the instrument cluster for the brake system. If a fault message is present before starting work, it must be rectified and is the responsibility of the customer. Any associated costs are not claimable and should not be included with the campaign claim. 1. Flow chart with allowable labor operation codes when submitting a warranty claim. 9 P-RC-2022050014 Check/test procedure A–visual inspection only 1. Open the hood and check the water drains (marking, figure 1) for correct installation and ability to drain. Only for model 251 Clean and correctly install water drains if necessary. Figure 1 10 P-RC-2022050014 2. Remove the rubber sleeve wrapped around the brake booster (A, figure 2) with a suitable tool (hook and side cutting pliers). If the rubber sleeve is not present, please proceed to check/test procedure A1. The rubber sleeve should be separated above the barcode label on the brake booster as seen in (A, figure 2 and B, figure 4.1). Figure 2 3. Take a photo of the rubber sleeve with the VIN label of the B-pillar (A, figures 3 and 4) and store to a local HDD/computer storage location with the vehicle service file and attach it to the warranty claim in EVA. These pictures serve as documentation of the current condition of the brake booster. Figure 3 Figure 4 11 P-RC-2022050014 4. Check corrosion of the brake booster using the removed rubber sleeve. Use figures 5, 6 and 7 to assess corrosion. Brake booster OK: Multiple point-shaped corrosion marks (figure 5) are permissible. A maximum of one point-shaped corrosion mark with a diameter greater than 15 mm (figures 6 and 7) is permitted. Figure 5 OK Figure 6 OK Figure 7 OK Brake booster not OK: Widespread corrosion marks spanning the rubber sleeve are not permissible. More than one corrosion mark with a diameter greater than 15 mm is not permissible. a. Corrosion measurements Exceeds thresholds-NOK: Carry out check/test procedure B – XENTRY/DAS. b. Corrosion measurements Does not exceed threshold-OK (figure 5, 6 or 7): End measure. (Certificate of Passed Initial Diagnostic Brake Test not required). If the measure is ended, do not re-install a new rubber sleeve. Apply marking with white touch-up paint pen (1, figure 8) to the brake booster checked. Under no circumstances should you treat the brake booster with anti-corrosion agent. The findings from the check/test procedure must be documented on the Repair Order and included in the dealer text in the warranty claim in EVA. 12 P-RC-2022050014 Check/test procedure A1 – visual inspection only if no rubber sleeve is present 1. Take a photo of the barcode label (B, figure 8) on the brake booster and store to a local HDD/computer storage location with the vehicle service file and attach to the warranty claim in EVA. Figure 8 2. Check sequence of numbers on the barcode label (C, figure 9). a. If the numeric sequence between numbers 13 and 17 is less than “15126”: Carry out scope of testing B – XENTRY/DAS. b. If the numeric sequence between numbers 13 and 17 is greater than or equal to “15126”: End measure. Figure 9 13 P-RC-2022050014 Check/test procedure B – XENTRY/DAS This step is only to be used if step A or A1 has failed Ensure use of XENTRY Diagnosis version 03/2022 or higher. The current version of all add-ons must be installed. Make sure to follow the operation steps exactly as described in XENTRY Diagnosis. 1. Connect XENTRY Diagnosis. XENTRY must be connected via the cable with VCI/SD Connect. Note regarding vehicles with KeylessGo: Remove KeylessGo start button and perform test with ignition key. Do not perform any unnecessary braking procedures (maximum full-stop braking) before the test. As a rule, the test should be performed nonstop without interruption. In certain conditions, the XENTRY scope of testing can be interrupted while the test is ongoing (e.g. hydraulic system is leaky) (cancellation). In this case, please follow the user guidance in XENTRY/DAS Diagnosis, because notes on the causes will be displayed for you. IMPORTANT: If XENTRY/DAS Diagnosis requests that the brake pedal be withdrawn into the starting position toward the driver, this must be done by means of a powerful foot motion. Check brake booster with XENTRY/DAS. To do this, select the menu item “Main groups – Control units – Chassis – ESP-Electronic Stability Program – Complete list of guided tests – Braking power”. Then follow the user guidance in XENTRY/DAS Diagnosis. Print out the brake force “event log” after the test and store to a local HDD/computer storage location. a. XENTRY/DAS test not passed: Please perform this test again. Only perform this test twice. b. XENTRY/DAS test passed: Continue with operation step 2. If the XENTRY/DAS test was not passed the first time, you must perform a second XENTRY/DAS test. If this second test is now passed, continue with the operation step 2 of scope of testing B. IMPORTANT: Only perform the second test if the first XENTRY/DAS test was not passed. The second test must be invoiced using operation number 02-0245 or 02-0246. a. XENTRY/DAS test of the second test not passed: Close campaign with claim. See Launch NCU FAQ for mobility solution options to offer to the customer until parts are available and the part can be exchanged. Do not provide customer Certificate of Passed Initial Diagnostic Brake Test. b. XENTRY/DAS test of the second test passed: Continue with operation step 2. 14 P-RC-2022050014 2. Apply marking with white touch-up paint pen (1, figure 10) to the inspected brake booster. Under no circumstances should you treat the brake booster with anti-corrosion agent/paint. Figure 10 3. Print out customer certificate titled “Certificate of Passed Initial Diagnostic Brake Test”, located at the end of this document, fill out, sign, and hand over to the customer. 4. Disconnect XENTRY Diagnosis. 15 P-RC-2022050014 Warranty Information Note: The following allowable labor operation should be used when submitting a warranty claim for this repair: Damage Code Operation Number Description Labor Time (hrs.) 42 900 06 02-0036 Check/test procedure A Check brake unit Includes: Remove rubber sleeve from brake unit and document test result This operation number can be used even if no rubber sleeve is present on the brake unit 0.2 02-0089 Check/test procedure A1 Check barcode on brake unit Only if no rubber sleeve is present on the brake unit End of test: Do not perform any further work. 0.1 End Here If Vehicle Passed Visual Inspection 02-0038* Check/test procedure B Check brake unit using XENTRY Diagnosis Findings: OK Includes: Connect/disconnect XENTRY 0.4 End Here If Vehicle Failed Visual Inspection & Passed 1st XENTRY Check 02-0044* Check/test procedure B Check brake unit using XENTRY Diagnosis Findings: not OK Includes: Connect/disconnect XENTRY Repeat scope of testing with the result of test item 02-0245 or 02-0246. 0.4 02-0245** Check/test procedure B – 2nd XENTRY/DAS test Extra work for: G 02 0044: Check brake unit with XENTRY Diagnosis – findings OK The second time the vehicle was tested, it was found to be OK. 0.2 End Here If Vehicle Failed Visual Inspection & Failed 1st XENTRY Check but Passed 2nd XENTRY Check 02-0246** Check/test procedure B – 2nd XENTRY/DAS test Extra work for: G 02 0044: Check brake unit with XENTRY Diagnosis – findings not OK The second time the vehicle was tested, it was found to be not OK 0.2 * Invoice only operation item 02-0038 or 02-0044. Invoicing both operation items is not permissible. ** Invoice operation item 02-0245 or 02-0246. Invoicing both operation items is not permissible. When using operation item 02-0038 or 02-0245, the Certificate of Passed Initial Diagnostic Brake Test must be handed over to the customer which is located at the end of this document. Note: Always check ASRA for the current OP-Code times. Labor times are subject to change and updates may not be reflected in this document. 16 P-RC-2022050014 Warranty Information For vehicles impacted by the stop drive, MBUSA will allow for reimbursement of several associated ancillary costs as outlined below. These reimbursements are solely to support the implementation of this recall and to reduce the risk of customer inconveniences.  Damage code 99803 01 – Mobile inspection incentive o $150 per vehicle o Claimed separately and on top of the recall inspection  Damage code 99039 01 – Towing o Up to $125 per tow if arranged by customer or dealer outside of normal process o Invoice must be attached to claim o Please use normal CAC tow process whenever possible to alleviate reimbursement  Damage code 99046 01 – Vehicle storage o $15 per vehicle, per day for dealership onsite storage o Up to $56.25 per vehicle, per day for offsite storage o Invoice must be attached to claim o Submit every 30 days and then a final claim to reconcile  Damage code 99047 01 – Active vehicle care during vehicle storage o $300 per vehicle, one-time, for the entire period claimed at the end of the storage period (i.e. wash, maintain battery, move to avoid flat spots and brake corrosion, etc.)  Damage code 99304 01 – Mobility solutions o Up to $2,400 per month for rental vehicle (up to $80/day), loaner ($80/day flat fee), taxi / rideshare services or use of public transportation o Dealers are encouraged to use loaner vehicles for customer requests. See sales NCU on changes to the CVP program and alternate mobility options. o Rental agreement, loaner agreement and/or invoice(s) must be attached to claim o Claims may be submitted on a monthly basis / multiple submissions allowed if needed This support is limited to the end of September 2022 17 P-RC-2022050014 Certificate of Passed Initial Diagnostic Brake Test Recall campaign – Inspect Brake Booster Vehicle identification number: Dear Valued Customer: Your vehicle’s brake booster has been inspected by your authorized Mercedes-Benz service facility for corrosion and functionality under MBUSA Recall Campaign number 2022050015 or 2022050014 bearing NHTSA ID# 22V315. The results of this initial inspection confirm that it is not immediately necessary to replace the brake booster in your vehicle. Therefore, your vehicle is no longer subject to the Stop Drive and may continue to be driven. A mobility solution is no longer necessary. Important! The brake booster may be subject to an additional inspection or a replacement brake booster, whichever comes first, within a period of 2 years from the date of the initial inspection. Mercedes-Benz USA will contact you again by mail to schedule the additional inspection at the appropriate time. If you sell your vehicle in the meantime, you must provide this document to the buyer. The additional inspection of the brake booster is very important to your vehicle’s safety. Therefore, it will be checked whether this has been carried out no later than 2 years after the first inspection. If this additional inspection was not carried out on your vehicle in time, you should stop operating the vehicle. If the described additional inspection is not completed, advanced corrosion in the joint area of the housing could potentially impair the function of the brake booster. This might increase the required brake pedal force and possibly extend the stopping distance. In very rare cases, it cannot be completely ruled out that mechanical damage to the brake booster might occur, whereby the connection between brake pedal and brake system would fail. In that condition, the vehicle would no longer be decelerated via the service brake which would increase the risk of a crash or injury. Date of inspection: Signature of Mercedes-Benz Dealer

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Recall Campaign Launch Notification – STOP DRIVE

DATE: May 28, 2022

Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis PUBLIC IMPORTANT RECALL CAMPAIGN UPDATE STOP DRIVE NOTIFICATION! Please see the attached documents related to the campaign listed above, which include: Launch NCU Frequently Asked Questions (FAQ) Please note that all customer inquiries should be directed to the Customer Assistance Center at 1-888-548-8514. Sincerely, Gregory Gunther Department Manager, Vehicle Compliance & Analysis TO: Mercedes-Benz Dealer Principals, General Managers, Sales Managers, Service Managers, Parts Managers FROM: Gregory Gunther, Department Manager, Vehicle Compliance and Analysis, Engineering Services RE: Recall Campaign Launch Notification – STOP DRIVE Inspect Brake Booster with Pedal Rework MY07-08 GL-Class, ML-Class, R-Class (X164, W164, 251 platform) DATE: May 28, 2022 Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis PUBLIC Recall Campaign Launch Notification May 28, 2022 Campaign No. : NHTSA ID Campaign Desc. : Inspect Brake Booster With Pedal Rework 2022050014 22V315 22P4290006 This is to notify you of the Recall Campaign Launch to inspect the brake booster on 14,123 Model Year (“MY”) 2007-2008 GL-Class, ML-Class, and R-Class (X164, W164 and 251 platform) vehicles. The recall campaign will be visible on the www.safercar.gov website and may generate questions from customers. Affected VINs will be flagged in VMI as “OPEN” on May 28, 2022. Background Issue Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2007-2008 ML-Class, GL-Class (W164/X164 platform) and R-Class (251 platform) vehicles, the function of the brake booster might be affected due to advanced corrosion in the joint area of its housing. After extended time in the field and in conjunction with prolonged water exposure, this corrosion might lead to a vacuum leak at the brake booster. If this were to occur, the brake force support might be reduced, leading to an increase in the brake pedal forces required to decelerate the vehicle, and/or increased stopping distances. Additionally, in rare cases of very severe corrosion, it might be possible for a particularly strong or hard brake application to cause mechanical damage in the brake booster, whereby the connection between brake pedal and brake system would fail. In such a very rare case, it would not be possible to decelerate the vehicle via the brake pedal. The risk of a crash or injury would be increased. The function of the parking brake is not affected by this issue. Before the issue occurs, the driver might notice a change in the brake pedal feel and/or hissing/airflow noises when applying the brake pedal. What We’re Doing MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will remove the rubber sleeve from the brake booster housing, check the brake booster on the affected vehicles and, depending on the result of this inspection, replace as necessary. Affected customers will be mailed a recall owner notification letter and instructed to stop driving their vehicles until the inspection process is completed. Parts The inspection procedure is available and can be performed. Parts are not available at this time should they be needed. Once parts are available, certain customers will be informed via a second owner notification letter to have a final repair performed. Vehicles Affected Vehicle Model Year(s) 2007-2008 Vehicle Model GL-Class, ML-Class, R-Class Vehicle Populations Total Recall Population 14,123 Total Vehicles in Dealer Inventory 0 The vehicles will be flagged as “OPEN” and Work Instructions will be available in Star TekInfo. Customers are advised not to drive their vehicle until an inspection is performed. Based on the results, vehicles may continue to be driven if the inspection is passed, or must be grounded if the inspection is not passed. A follow-up campaign will be issued for any vehicle that requires a brake booster replacement. Until such time, a “Pending” campaign will be assigned to these vehicles to ensure vehicle status is reflected in the VIN look-up tools mentioned below. Additionally, given this notice, it is a violation of Federal Law for car rental companies to rent MY 07-08 GL-Class, ML-Class, and R-Class vehicles covered by this notification until the vehicle has been inspected and passed, or grounded until parts become available and the remedy performed. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis PUBLIC FAQs 1. What is the recall about? a. The recall campaign is related to the brake booster housing. Specifically, advanced corrosion may have formed on the housing, which could lead to a vacuum leak and impairment to brake effectiveness. 2. Can I continue to drive the car? a. Your safety is our highest priority. MBUSA advises customers to stop driving the vehicle until the first inspection is performed. Customers will be notified by first class mail to schedule an appointment to have the inspection performed by an authorized dealer. 3. Why are other models not included? a. Only ML- (MY2006 – 2011), GL- (MY2007 – 2012), and R- (MY2006 – 2012) Class vehicles are fitted with the affected brake booster utilizing a rubber sleeve. Other models are not fitted with this rubber sleeve. Affected vehicles have been identified within this recall. 4. Will the dealer provide a loaner vehicle? a. The dealer may offer to provide a loaner based on loaner vehicle availability. If available, the loaner will be provided free of charge. If no loaner vehicles are available, other solutions will be offered such as taxi/rideshare, public transportation cost reimbursement, and rental reimbursement. See the “Warranty Information” section below for additional information. 5. What types of repairs or replacements part(s) are needed? a. Affected vehicles will be inspected as a first step. After this inspection, the vehicle will be given 1 of 3 statuses. A. Inspected with no advanced corrosion: The rubber sleeve will be removed. The vehicle can be driven with no further action or customer follow-up required. B. Inspected with advanced corrosion found: A brake efficacy test will be performed. A passed test ensures the tested brake booster can continue to be used and the vehicle driven up to a maximum time limit of 2 years. The dealer will provide a “Certificate of Passed Initial Diagnostic Brake Test” detailing that the test has passed. A new notice will be provided to the owner at a later date to bring the vehicle to an authorized Mercedes-Benz dealership for further inspection and potential replacement of the brake booster. Next Steps/Notes Customer Notification Timeline Owner notification letters will be mailed on or before June 30, 2022. AOMS/SOMS AOMs – This recall may generate questions from your dealers. Please forward this notice to your dealers ASAP. Rental Fleet Partners Affected vehicles in your fleet should not be driven until the inspection has been performed and passed. Please contact your respective MBUSA fleet representative for further information and next steps. For repairs, please contact your preferred MBUSA dealer. While we regret any inconvenience this may cause, MBUSA is determined to maintain a high level of vehicle quality and customer satisfaction. Please refer all customer inquiries to the Customer Assistance Center at 1-888-548-8514. Please anticipate longer than usual wait times to reach an agent as is typical for any recall of large volume. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis PUBLIC C. Inspected with advanced corrosion and brake efficacy test does not pass: The vehicle will require the brake booster housing to be replaced when parts are available. Until then, the vehicle MUST NOT be driven. 6. If I am advised not to drive my vehicle will towing be offered? a. Customers will be notified by first class mail that the inspection can be performed at an authorized dealer. A tow can be completed by the local dealer or by calling 1-888-548-8514. Full details will be available in the owner notification letter. In some locations, a mobile inspection can be performed at a location of the customer’s convenience and towing will not be necessary. All towing will be provided free of charge to complete this recall. 7. Will the dealer repair the vehicle with the same part(s)? a. No. Based on the initial inspection, if a replacement of the brake booster is necessary, the part will be removed and replaced with a new part that does not utilize a rubber sleeve. 8. If advanced corrosion is found (status B, question 5), why must I wait two years – can’t the dealer just replace the brake booster housing now? a. Sufficient part quantities are not yet available to offer a complete repair at this time. Mercedes-Benz assures all customers that the tests performed through the inspection procedure confirm that the brake booster will remain functioning normally until such time an additional inspection is deemed necessary within a 2-year period. Mercedes-Benz is working diligently with its suppliers to procure replacement parts as soon as possible. 9. Will the replacement part(s) fail again? a. No. Provided the recall timelines are followed, the inspections and remedial measures performed by your Mercedes-Benz dealership assure you that the recall condition is remedied. 10. How long will the vehicle need to be in the workshop? a. For your convenience, an authorized Mercedes-Benz dealer will offer mobile inspection at your location of choice. Should you request the vehicle be towed to a workshop, the time for the recall will vary and is heavily dependent on towing availability and dealership schedules. The inspection itself will require 1 hour to complete. Your authorized Mercedes-Benz dealer can provide you with a better estimate of the overall time for this inspection. 11. Where will the vehicle be stored? a. Customers may store the vehicle at their residence and are encouraged to request their dealer perform a mobile inspection. Should the vehicle not pass the inspection, the vehicle may be continued to be stored at their residence or at their preferred dealer. 12. Are Owners responsible for expenses related to the recall? a. No. Parts and labor will be provided free of charge. Alternate mobility solutions will be offered via MBUSA and/or an authorized Mercedes-Benz dealership. If the customer exceeds the limits of what Mercedes-Benz offers, they may be responsible for the additional expenses. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis PUBLIC 13. I may have paid for repairs related to this recall. Will I receive reimbursement? a. Current and previous owners may be eligible to receive reimbursement if they have had a brake booster replacement due to the conditions specified in this recall. Requests for reimbursement may include parts, labor, fees and taxes. Reimbursement may be limited to the amount the repair would have cost if completed by an authorized Mercedes-Benz dealer. Details will be provided in the recall owner notification letter. 14. What happens if the dealer determines repairs aren’t necessary now but Owners experience concerns related to the recall in the future? Are Owners responsible for diagnostic fees/repair costs? a. Any future owner concerns will be evaluated on an individual basis. Extensive analyses were conducted by Mercedes-Benz AG. Based on these analyses, a test method was developed for the workshops which, among other aspects, ensures the functionality of the brake booster by usage of diagnostic-supported test routines. If the dealer determines based on the inspection that the brake booster does not need to be replaced at this time but the owner experiences recall-related concerns in the future, a re-inspection may be carried out within 2 years to ensure the functionality of the brake booster. Parts and labor associated with the recall are free of charge to the customer. 15. I received a letter but I no longer own the vehicle. How can I update my ownership information? a. Customers should be directed to the MBUSA recall website at https://www.mbusa.com/en/recall, enter their VIN, and update their contact information. 16. What is Mercedes-Benz going to do for Owners given this inconvenience? a. Mercedes-Benz is committed to the highest level of customer service and while we regret the inconvenience, the safety of our customers is paramount. Mobility solutions and/or reimbursement for mobility will be offered for the duration the customer’s vehicle is affected under this “stop drive” recall. See the “Warranty Information” section below for further information. 17. I lost faith in the vehicle and demand MBUSA provide a replacement. a. Such customer inquiries will be evaluated on a case by case basis. Direct the customer to 1-888-548-8514. 18. Is mobile repair offered for this recall? a. Yes, for your convenience, an authorized Mercedes-Benz dealer will offer mobile inspection at a location of your choice. 19. I read a media article that states I should stop driving my vehicle if I own one of the affected vehicles, what should I do? a. A VIN-based recall lookup tool on our MBUSA.com website offers a search feature that will indicate whether a vehicle has been subject to a safety recall. See www.mbusa.com/recall for more details. If your vehicle status is listed as “Recall Currently Pending” or “Open,” the vehicle MUST NOT be driven until the inspection process is performed. Further instructions will be provided based on the results of that inspection. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis PUBLIC 20. Can/should dealers wholesale/sell affected used car vehicles? a. No. MBUSA advises dealers not to sell used vehicles subject to this recall until the inspection is completed. 21. For cars currently at the dealers, should dealers inform their customers and ensure dealer staff do not drive the vehicle? a. For customers Yes, dealers should inform their customers that the vehicle is under a stop drive recall. The vehicle can be stored at the dealership, or towed to the customer’s residence free of charge. Please contact the CAC at 1-888-548-8514 to schedule a tow. If the customer needs alternative transportation, a mobility solution will be offered to you by the dealer (See FAQ 4). Reimbursements will be provided up to a maximum of $80 per day. b. For dealer staff Dealer staff must NOT drive the vehicle on public roads. Within the confines of the dealership, the vehicle can be driven up to 20 mph. To claim any expenses related to towing and/or storage, see the “Warranty Information” 22. I inspected the vehicle and found other brake components to be in need of repair. a. This recall relates to potential advanced corrosion on the brake booster housing. If other brake system component(s) are in need of repair/replacement such that they would impair or hinder performing the inspection for the recall condition, the parts/system must be rectified prior so the initial inspection may be completed. These parts and labor are not covered under this recall. 23. The customer wishes to keep driving the vehicle and refuses the repair. How do I handle this situation? a. Customer safety is our top priority at Mercedes-Benz. If the customer insists on driving the vehicle despite the warnings associated with a “stop drive” recall, the following language MUST be added to the Repair Order and initialed by the customer: ______ (Initial Here) ASSUMPTION OF RISK FOR REMOVAL OF VEHICLE. I understand that my vehicle is subject to a “Stop Drive” recall and that continuing to drive my vehicle involves inherent risks and dangers of accidents, property loss or damage, and serious personal injury to me and others, as well as potential financial losses. I have carefully considered the extent of the risks involved, and I voluntarily and freely choose to assume these risks. Campaign No. 2022050014, May 2022 TO: ALL MERCEDES-BENZ CENTERS SUBJECT: Model GL-Class, ML-Class, and R-Class (X164, W164 and 251 platform) Model Year 2007-2008 Inspect Brake Booster – with Pedal Rework Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2007-2008 ML, GL (W164/X164 platform) and R-Class (251 platform) vehicles, the function of the brake booster might be affected due to advanced corrosion in the joint area of its housing. After extended time in the field and in conjunction with prolonged water exposure, this corrosion might lead to a vacuum leak at the brake booster. If this were to occur, the brake force support might be reduced, leading to an increase in the brake pedal forces required to decelerate the vehicle, and/or increased stopping distances. Additionally, in rare cases of very severe corrosion, it might be possible for a particularly strong or hard brake application to cause mechanical damage in the brake booster, whereby the connection between brake pedal and brake system would fail. In such a very rare case, it would not be possible to decelerate the vehicle via the brake pedal. The risk of a crash or injury would be increased. The function of the parking brake is not affected by this issue. Before the issue occurs, the driver might notice a change in the brake pedal feel and/or hissing/airflow noises when applying the brake pedal. MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will remove the rubber sleeve from the brake booster housing, check the brake booster on the affected vehicles and, depending on the result of this inspection, replace as necessary. Affected customers will be mailed a recall owner notification letter and instructed to stop driving their vehicles until the inspection process is completed. Prior to performing this Campaign:  VMI must always be checked before performing campaigns to verify that the campaign is required on a specific vehicle. Always check for any other open campaigns, and perform accordingly.  Please review the entire Campaign bulletin and follow the repair procedure exactly as described. Approximately 14,123 vehicles are affected. Order No. P-RC-2022050014 This bulletin has been created and maintained in accordance with MBUSA-SLP S423QH001, Document and Data Control, and MBUSA-SLP S424HH001, Control of Quality Record 2 P-RC-2022050014 Inspect Brake Booster Existing problems that would hinder the inspection procedure or any subsequent repairs must first be rectified. Any associated costs are not claimable and should not be included with the campaign claim.  Ensure use of XENTRY Diagnosis version 03/2022 or higher.  Before beginning with the work procedure, install the current versions of all add-ons as well as add-on 22889 and 23043 on XENTRY Diagnosis.  Make sure to follow the operation steps exactly as described in XENTRY Diagnosis. Check/test procedure A The following work must be invoiced using damage code (SSL) “42 900 06”. 1. Open the hood and check the water drains (marking, figure 1) for correct installation and ability to drain. Clean and correctly install water drains if necessary. Figure 1 3 P-RC-2022050014 2. Remove the rubber sleeve wrapped around the brake booster (A, figure 2) with a suitable tool (hook and side cutting pliers). If the rubber sleeve is not present, please proceed to check/test procedure A1. The rubber sleeve should be separated above the barcode label on the brake booster as seen in (A, figure 2 and B, figure 4.1). Figure 2 3. Take a photo of the rubber sleeve with the VIN label of the B-pillar (A, figures 3 and 4) and store to a local HDD/computer storage location with the vehicle service file and attach it to the warranty claim in EVA. These pictures serve as documentation of the current condition of the brake booster. Figure 3 Figure 4 Figure 4.1 4 P-RC-2022050014 4. Check corrosion of the brake booster using the removed rubber sleeve Figure 2(A). Use figures 5, 6 and 7 to assess corrosion. Brake booster OK: Multiple point-shaped corrosion marks (figure 5) are permissible. A maximum of one point-shaped corrosion mark with a diameter greater than 15 mm (figures 6 and 7) is permitted. Figure 5 OK Figure 6 Ok Figure 7 OK Brake booster not OK: Widespread corrosion marks spanning the rubber sleeve are not permissible. Corrosion marks of multiple points with a diameter greater than 15 mm are not permissible. a. Corrosion measurements Exceeds thresholds-NOK: Carry out check/test procedure B – XENTRY/DAS. b. Corrosion measurements Does not exceed threshold-OK (figure 5, 6 or 7): End measure. (Certificate of Passed Initial Diagnostic Brake Test not required). If the measure is ended, do not re-install a new rubber sleeve. Apply marking with white touch-up paint pen (1, figure 8) to the brake booster checked. DO NOT treat the brake booster with an anti-corrosion agent! The findings from the check/test procedure must be documented on the Repair Order and included in the dealer text in the warranty claim in EVA. 5 P-RC-2022050014 Check/test procedure A1 If the rubber sleeve on the brake booster is not present, please take a photo of the barcode label (B, figure 4.1) on the brake booster and store to a local HDD/computer storage location with the vehicle service file and attach to the warranty claim in EVA. Then continue with check/test procedure A1. Only if the rubber sleeve of the brake booster is missing. 1. Check sequence of numbers on the barcode label (C, figure 4.2). a. IF the sequence of numbers is less than “15126” starting from the 13th number: Perform check/test procedure B – XENTRY/DAS. b. If the sequence of numbers is greater than or equal to “15126” starting from the 13th number: End the measure. Figure 4.2 Check/test procedure B – XENTRY/DAS The following work must be invoiced using damage code (SSL) “42 900 06”. Add-on 22889 and 23043 must be installed. Without add-on 22889 and 23043, check/test procedure B cannot be performed. 1. Connect XENTRY Diagnosis and create an initial quick test. XENTRY must be connected via the cable with VCI/SD Connect. The test may only be performed once and in full without interruption. Do not perform any unnecessary braking procedures (maximum full-stop braking) before the test. 6 P-RC-2022050014 2. Check brake booster with XENTRY/DAS. To do this, select the menu item “Main groups – Control units – Chassis – ESP-Electronic Stability Program – Complete list of guided tests – Braking power”. Then follow the user guidance in XENTRY/DAS Diagnosis. Print out the brake force “event log” after the test and store to a local HDD/computer storage location. c. XENTRY/DAS check not passed: Close campaign with claim. See Launch NCU FAQ for mobility solution options to offer to the customer until parts are available and the part can be exchanged. Do not provide customer Certificate of Passed Initial Diagnostic Brake Test. d. XENTRY/DAS check passed: Continue. 3. Disconnect XENTRY Diagnosis. 4. Apply marking with white touch-up paint pen (1, figure 8) to the inspected brake booster. DO NOT treat the brake booster with an anti-corrosion agent/paint. 5. Print out customer certificate titled “Certificate of Passed Initial Diagnostic Brake Test”, located at the end of this document, fill out, sign, and hand over to the customer. Figure 8 7 P-RC-2022050014 Primary Parts Information Qty. Part Name Part Number 0.1 Rubber Sleeve SLEEVE Note: The following allowable labor operation should be used when submitting a warranty claim for this repair: Warranty Information Note on the claim submission: Please ensure you claim 0.1 quantity for part number = SLEEVE (uppercase) for all rubber sleeve removal labor claims. This will result in QEC part return request in the NetStar Parts Disposition application. Claims in which the quantity exceeds 0.1 will be stopped in error in EVA until corrected. Be aware that a claim stopped in error will not close the campaign and will not allow payment to the dealer so please correct these errors immediately. Note on the return shipment: • For each vehicle processed, print out the part return barcode from the NetStar Parts Disposition application • Pack the rubber sleeve with the part return barcode in a plastic bag and seal securely with barcode visible from the outside (see figure 1).  For Dedicated Delivery Service (DDS) dealers, please forward parts in bulk (10-20 pcs per Load List unless time does not permit) to your facing PDC using the normal DDS warranty parts return process. Please ensure you include a Dealer Return slip marked for Warranty.  For non-DDS dealers, please forward parts in bulk (10-20 pcs per Load List unless time does not permit) directly to the QEC using the normal FedEx Ground warranty parts return process. All rubber sleeves should be individually tagged with a warranty parts return barcode and bagged. Recommend that bulk sleeve shipments are placed into a single overpack bag and then packaged in a small box with a copy of the Load List affixed to the box. Failure to return the rubber sleeve within the pre-defined time period will result in a non-return part debit. If there are any questions pertaining to parts return, please submit a WSG Parts Disposition case online 8 P-RC-2022050014 Damage Code Operation Number Description Labor Time (hrs.) 42 900 06 02-0036 Check/test procedure A Check brake unit Includes: Remove rubber sleeve from brake unit and document test result This operation number can be used even if no rubber sleeve is present on the brake unit 0.2 02-0037 Pack up the rubber sleeve for the brake unit and dispatch 0.1 02-0089 Check/test procedure A1 Check barcode on brake unit Only if no rubber sleeve is present on the brake unit 0.1 02-0038* Scope of testing B Check brake unit using XENTRY Diagnosis Findings: OK Includes: Connect/disconnect XENTRY 0.4 02-0044* Scope of testing B Check brake unit using XENTRY Diagnosis Findings: not OK Includes: Connect/disconnect XENTRY 0.4 02-0039 Scope of testing B Perform quick test (with XENTRY/DAS connected) 0.1 * Invoice only operation item 02-0038 or 02-0044. Invoicing both operation items is not permissible. When using operation item 02-0038, the Certificate of Passed Initial Diagnostic Brake Test must be handed over to the customer which is located at the end of this document. Note: Always check ASRA for the current OP-Code times. Labor times are subject to change and updates may not be reflected in this document. 9 P-RC-2022050014 Warranty Information For vehicles impacted by the stop drive, MBUSA will allow for reimbursement of several associated ancillary costs as outlined below. These reimbursements are solely to support the implementation of this recall and to reduce the risk of customer inconveniences.  Damage code 99803 01 – Mobile inspection incentive o $150 per vehicle o Claimed separately and on top of the recall inspection  Damage code 99039 01 – Towing o Up to $125 per tow if arranged by customer or dealer outside of normal process o Invoice must be attached to claim o Please use normal CAC tow process whenever possible to alleviate reimbursement  Damage code 99046 01 – Vehicle storage o $15 per vehicle, per day for dealership onsite storage o Up to $56.25 per vehicle, per day for offsite storage o Invoice must be attached to claim  Damage code 99047 01 – Active vehicle care during vehicle storage o $300 per vehicle, one-time, for the entire period (i.e. wash, maintain battery, move to avoid flat spots and brake corrosion, etc.)  Damage code 99304 01 – Mobility solutions o Up to $2,400 per month for rental vehicle (up to $80/day), loaner ($80/day flat fee), taxi / rideshare services or use of public transportation o Dealers are encouraged to use loaner vehicles for customer requests. See sales NCU on changes to the CVP program and alternate mobility options. o Rental agreement, loaner agreement and/or invoice(s) must be attached to claim o Claims may be submitted on a monthly basis / multiple submissions allowed if needed This support is limited to the end of September 2022 10 P-RC-2022050014 Certificate of Passed Initial Diagnostic Brake Test Recall campaign – Inspect Brake Booster Vehicle identification number: Dear Valued Customer: Your vehicle’s brake booster has been inspected by your authorized Mercedes-Benz service facility for corrosion and functionality under MBUSA Recall Campaign number 2022050015 or 2022050014 bearing NHTSA ID# 22V315. The results of this initial inspection confirm that it is not immediately necessary to replace the brake booster in your vehicle. Therefore, your vehicle is no longer subject to the Stop Drive and may continue to be driven. A mobility solution is no longer necessary. Important! The brake booster may be subject to an additional inspection or a replacement brake booster, whichever comes first, within a period of 2 years from the date of the initial inspection. Mercedes-Benz USA will contact you again by mail to schedule the additional inspection at the appropriate time. If you sell your vehicle in the meantime, you must provide this document to the buyer. The additional inspection of the brake booster is very important to your vehicle’s safety. Therefore, it will be checked whether this has been carried out no later than 2 years after the first inspection. If this additional inspection was not carried out on your vehicle in time, you should stop operating the vehicle. If the described additional inspection is not completed, advanced corrosion in the joint area of the housing could potentially impair the function of the brake booster. This might increase the required brake pedal force and possibly extend the stopping distance. In very rare cases, it cannot be completely ruled out that mechanical damage to the brake booster might occur, whereby the connection between brake pedal and brake system would fail. In that condition, the vehicle would no longer be decelerated via the service brake which would increase the risk of a crash or injury. Date of inspection: Signature of Mercedes-Benz Dealer

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Updated Recall Campaign Launch Notification – STOP DRIVE

UPDATE: July 22, 2022

Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis IMPORTANT RECALL CAMPAIGN UPDATE STOP DRIVE NOTIFICATION! Please see the attached documents related to the campaign listed above, which include: Topic Page Launch NCU 2 Frequently Asked Questions (FAQ) a. What is this Recall b. Mobility c. Storage d. Reimbursement e. Miscellaneous 3 Work Instructions 7 Warranty Information & Parts Return Instructions 15 Certificate of Passed Initial Diagnostic Brake Test 18 Please note that all customer inquiries should be directed to the Customer Assistance Center at 1-888-548-8514. Sincerely, Gregory Gunther Department Manager, Vehicle Compliance & Analysis TO: Mercedes-Benz Dealer Principals, General Managers, Sales Managers, Service Managers, Parts Managers FROM: Gregory Gunther, Department Manager, Vehicle Compliance and Analysis, Engineering Services RE: Updated Recall Campaign Launch Notification – STOP DRIVE Inspect Brake Booster without Pedal Rework MY06-12 GL-Class, ML-Class, R-Class (X164, W164, 251 platform) UPDATE: July 22, 2022 Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis Recall Campaign Launch Notification July 22, 2022 Campaign No. : NHTSA ID Campaign Desc. : Inspect Brake Booster Without Pedal Rework 2022050015 22V315 22P4290005 This is to notify you of an update to the Recall Campaign Launch to inspect the brake booster on 278,173 Model Year (“MY”) 2006-2012 GL-Class, ML-Class, and R-Class (X164, W164 and 251 platform) vehicles. The recall campaign will be visible on the www.safercar.gov website and may generate questions from customers. Affected VINs were flagged in VMI as “OPEN” on May 28, 2022. Background Issue Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2006-2012 ML-Class, GL-Class (W164/X164 platform) and R-Class (251 platform) vehicles, the function of the brake booster might be affected due to advanced corrosion in the joint area of its housing. After extended time in the field and in conjunction with prolonged water exposure, this corrosion might lead to a vacuum leak at the brake booster. If this were to occur, the brake force support might be reduced, leading to an increase in the brake pedal forces required to decelerate the vehicle, and/or increased stopping distances. Additionally, in rare cases of very severe corrosion, it might be possible for a particularly strong or hard brake application to cause mechanical damage in the brake booster, whereby the connection between brake pedal and brake system would fail. In such a very rare case, it would not be possible to decelerate the vehicle via the brake pedal. The risk of a crash or injury would be increased. The function of the parking brake is not affected by this issue. Before the issue occurs, the driver might notice a change in the brake pedal feel and/or hissing/airflow noises when applying the brake pedal. What We’re Doing MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will remove the rubber sleeve from the brake booster housing, check the brake booster on the affected vehicles and, depending on the result of this inspection, replace as necessary. Affected customers will be mailed a recall owner notification letter and instructed to stop driving their vehicles until the inspection process is completed. Parts The inspection procedure is available and can be performed. Parts are not available at this time should they be needed. Once parts are available, certain customers will be informed via a second owner notification letter to have a final repair performed. Vehicles Affected Vehicle Model Year(s) 2006-2012 Vehicle Model GL-Class, ML-Class, R-Class Vehicle Populations Total Recall Population 278,173 Total Vehicles in Dealer Inventory 0 The vehicles will be flagged as “OPEN” and Work Instructions will be available in Star TekInfo. Customers are advised not to drive their vehicle until an inspection is performed. Based on the results, vehicles may continue to be driven if the inspection is passed, or must be grounded if the inspection is not passed. A follow-up campaign will be issued for any vehicle that requires a brake booster replacement. Until such time, a “Pending” campaign will be assigned to these vehicles to ensure vehicle status is reflected in the VIN look-up tools mentioned below. Additionally, given this notice, it is a violation of Federal Law for car rental companies to rent MY 06-12 GL-Class, ML-Class, and R-Class vehicles covered by this notification until the vehicle has been inspected and passed, or grounded until parts become available and the remedy performed. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis FAQs SUMMARY OF RECALL 1. What is the recall about? a. The recall campaign is related to the brake booster housing. Specifically, advanced corrosion may have formed on the housing, which could lead to a vacuum leak and impairment to brake effectiveness. 2. What’s the difference between Campaign 2022050014 and 2022050015. a. The inspection is the same, however, they have different damage codes. So please follow the instructions exactly for the respective campaign for your vehicle. 3. Can I continue to drive the car? a. Your safety is our highest priority. MBUSA advises customers to stop driving the vehicle until the first inspection is performed. Customers will be notified by first class mail to schedule an appointment to have the inspection performed by an authorized dealer. 4. Why are other models not included? a. Only ML- (MY2006 – 2011), GL- (MY2007 – 2012), and R- (MY2006 – 2012) Class vehicles are fitted with the affected brake booster utilizing a rubber sleeve. Other models are not fitted with this rubber sleeve. Affected vehicles have been identified within this recall. 5. What types of repairs or replacements part(s) are needed? a. Affected vehicles will be inspected as a first step. After this inspection, the vehicle will be given 1 of 3 statuses. A. Inspected with no advanced corrosion: The rubber sleeve will be removed. The vehicle can be driven with no further action or customer follow-up required. B. Inspected with advanced corrosion found: A brake efficacy test will be performed. A passed test ensures the tested brake booster can continue to be used and the vehicle driven up to a maximum time limit of 2 years. The dealer will provide a “Certificate of Passed Initial Diagnostic Brake Test” detailing that the test has passed. A new notice will be provided to the owner at a later date to bring the vehicle to an authorized Mercedes-Benz dealership for further inspection and potential replacement of the brake booster. Next Steps/Notes Customer Notification Timeline Owner notification letters will be mailed on or before June 30, 2022. AOMS/SOMS AOMs – This recall may generate questions from your dealers. Please forward this notice to your dealers ASAP. Rental Fleet Partners Affected vehicles in your fleet should not be driven until the inspection has been performed and passed. Please contact your respective MBUSA fleet representative for further information and next steps. For repairs, please contact your preferred MBUSA dealer. While we regret any inconvenience this may cause, MBUSA is determined to maintain a high level of vehicle quality and customer satisfaction. Please refer all customer inquiries to the Customer Assistance Center at 1-888-548-8514. Please anticipate longer than usual wait times to reach an agent as is typical for any recall of large volume. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis C. Inspected with advanced corrosion and brake efficacy test does not pass: The vehicle will require the brake booster housing to be replaced when parts are available. Until then, the vehicle MUST NOT be driven. 6. Will the dealer repair the vehicle with the same part(s)? a. No. Based on the initial inspection, if a replacement of the brake booster is necessary, the part will be removed and replaced with a new part that does not utilize a rubber sleeve. 7. If advanced corrosion is found (status B, question 5), why must I wait two years – can’t the dealer just replace the brake booster housing now? a. Sufficient part quantities are not yet available to offer a complete repair at this time. Mercedes-Benz assures all customers that the tests performed through the inspection procedure confirm that the brake booster will remain functioning normally until such time an additional inspection is deemed necessary within a 2-year period. Mercedes-Benz is working diligently with its suppliers to procure replacement parts as soon as possible. 8. Will the replacement part(s) fail again? a. No. Provided the recall timelines are followed, the inspections and remedial measures performed by your Mercedes-Benz dealership assure you that the recall condition is remedied. 9. How long will the vehicle need to be in the workshop? a. For your convenience, an authorized Mercedes-Benz dealer will offer mobile inspection at your location of choice. Should you request the vehicle be towed to a workshop, the time for the recall will vary and is heavily dependent on towing availability and dealership schedules. The inspection itself will require 1 hour to complete. Your authorized Mercedes-Benz dealer can provide you with a better estimate of the overall time for this inspection. MOBILITY 10. Will the dealer provide a loaner vehicle? a. The dealer may offer to provide a loaner based on loaner vehicle availability. If available, the loaner will be provided free of charge. If no loaner vehicles are available, other solutions will be offered such as taxi/rideshare, public transportation cost reimbursement, and rental reimbursement. See the “Warranty Information” section below for additional information. 11. If I am advised not to drive my vehicle will towing be offered? a. Customers will be notified by first class mail that the inspection can be performed at an authorized dealer. A tow can be completed by the local dealer or by calling 1-888-548-8514. Full details will be available in the owner notification letter. In some locations, a mobile inspection can be performed at a location of the customer’s convenience and towing will not be necessary. All towing will be provided free of charge to complete this recall. 12. Is mobile repair offered for this recall? a. Yes, for your convenience, an authorized Mercedes-Benz dealer will offer mobile inspection at a location of your choice. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis 13. I read a media article that states I should stop driving my vehicle if I own one of the affected vehicles, what should I do? a. A VIN-based recall lookup tool on our MBUSA.com website offers a search feature that will indicate whether a vehicle has been subject to a safety recall. See www.mbusa.com/recall for more details. If your vehicle status is listed as “Recall Currently Pending” or “Open,” the vehicle MUST NOT be driven until the inspection process is performed. Further instructions will be provided based on the results of that inspection. 14. What is Mercedes-Benz going to do for Owners given this inconvenience? a. Mercedes-Benz is committed to the highest level of customer service and while we regret the inconvenience, the safety of our customers is paramount. Mobility solutions and/or reimbursement for mobility will be offered for the duration the customer’s vehicle is affected under this “stop drive” recall. See the “Warranty Information” section below for further information. 15. For cars currently at the dealers, should dealers inform their customers and ensure dealer staff do not drive the vehicle? a. For customers Yes, dealers should inform their customers that the vehicle is under a stop drive recall. The vehicle can be stored at the dealership, or towed to the customer’s residence free of charge. Please contact the CAC at 1-888-548-8514 to schedule a tow. If the customer needs alternative transportation, a mobility solution will be offered to you by the dealer (See FAQ 4). Reimbursements will be provided up to a maximum of $80 per day. b. For dealer staff Dealer staff must NOT drive the vehicle on public roads. Within the confines of the dealership, the vehicle can be driven up to 20 mph. To claim any expenses related to towing and/or storage, see the “Warranty Information” STORAGE 16. Where will the vehicle be stored? a. Customers may store the vehicle at their residence and are encouraged to request their dealer perform a mobile inspection. Should the vehicle not pass the inspection, the vehicle may be continued to be stored at their residence or at their preferred dealer. REIMBURSEMENTS/OWNER PAY 17. Are Owners responsible for expenses related to the recall? a. No. Parts and labor will be provided free of charge. Alternate mobility solutions will be offered via MBUSA and/or an authorized Mercedes-Benz dealership. If the customer exceeds the limits of what Mercedes-Benz offers, they may be responsible for the additional expenses. 18. I may have paid for repairs related to this recall. Will I receive reimbursement? a. Current and previous owners may be eligible to receive reimbursement if they have had a brake booster replacement due to the conditions specified in this recall. Requests for reimbursement may include parts, labor, fees and taxes. Reimbursement may be limited to the amount the Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis repair would have cost if completed by an authorized Mercedes-Benz dealer. Details will be provided in the recall owner notification letter. 19. What happens if the dealer determines repairs aren’t necessary now but Owners experience concerns related to the recall in the future? Are Owners responsible for diagnostic fees/repair costs? a. Any future owner concerns will be evaluated on an individual basis. Extensive analyses were conducted by Mercedes-Benz AG. Based on these analyses, a test method was developed for the workshops which, among other aspects, ensures the functionality of the brake booster by usage of diagnostic-supported test routines. If the dealer determines based on the inspection that the brake booster does not need to be replaced at this time but the owner experiences recall-related concerns in the future, a re-inspection may be carried out within 2 years to ensure the functionality of the brake booster. Parts and labor associated with the recall are free of charge to the customer. 20. I inspected the vehicle and found other brake components to be in need of repair. a. This recall relates to potential advanced corrosion on the brake booster housing. If other brake system component(s) are in need of repair/replacement such that they would impair or hinder performing the inspection for the recall condition, the parts/system must be rectified prior so the initial inspection may be completed. These parts and labor are not covered under this recall. 21. I received a letter but I no longer own the vehicle. How can I update my ownership information? a. Customers should be directed to the MBUSA recall website at https://www.mbusa.com/en/recall, enter their VIN, and update their contact information. 22. I lost faith in the vehicle and demand MBUSA provide a replacement. a. Such customer inquiries will be evaluated on a case by case basis. Direct the customer to 1-888-548-8514. 23. Can/should dealers wholesale/sell affected used car vehicles? a. No. MBUSA advises dealers not to sell used vehicles subject to this recall until the inspection is completed. 24. While performing the Xentry diagnostic test the technician finds a brake fluid leak, can this be covered under warranty? a. Yes. If while performing the inspection procedure other components fail then this would be claimable on the same line as the recall and considered primary loss. 25. While performing the Xentry diagnostic test, the brake line needed to be repaired. How do I address this? a. Follow AR42.10-P-0020A and utilize flaring kit A000 589 20 99 00 to construct brake lines from bulk stock. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis 26. If the vehicle fails the Xentry diagnostic pressure test, does the RO need to stay open? No, close the RO and submit the claim based on the warranty codes provided below. The dealership may choose to open another RO until the parts replacement is complete. 27. The customer wishes to keep driving the vehicle and refuses the repair. How do I handle this situation? a. Customer safety is our top priority at Mercedes-Benz. If the customer insists on driving the vehicle despite the warnings associated with a “stop drive” recall, the following language MUST be added to the Repair Order and initialed by the customer: ______ (Initial Here) ASSUMPTION OF RISK FOR REMOVAL OF VEHICLE. I understand that my vehicle is subject to a “Stop Drive” recall and that continuing to drive my vehicle involves inherent risks and dangers of accidents, property loss or damage, and serious personal injury to me and others, as well as potential financial losses. I have carefully considered the extent of the risks involved, and I voluntarily and freely choose to assume these risks. 28. Is there a point of contact for the dealership, AOM’s, or other field personnel to request technical information or assistance relating specifically to the Xentry diagnostic test? a. The Work Instructions and Xentry diagnostic test have been verified prior to the recall launch. Thoroughly read the instructions, directions, and questions as presented in the Xentry diagnostic brake pressure test steps. If there are still questions after completing the first test , please open a PTSS case for the particular process or direction that is unclear. We do not anticipate any questions relating to the test at this time. 29. The customer wishes to keep driving the vehicle and is refusing to initial the “Assumption of Risk” on the Repair Order. How do I handle this situation? a. Follow the same protocol used at your dealership when a customer refuses services offered. Also, make a notation on the RO that “customer refuses to initial the Assumption of Risk.” A customer signature must be recorded on the RO. Campaign No. 2022050015, May 2022 Revision D 07/21/2022 TO: ALL MERCEDES-BENZ CENTERS SUBJECT: Model GL-Class, ML-Class, and R-Class (X164, W164 and 251 platform) Model Year 2006-2012 Inspect Brake Booster – without Pedal Rework Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2006-2012 ML, GL (W164/X164 platform) and R-Class (251 platform) vehicles, the function of the brake booster might be affected due to advanced corrosion in the joint area of its housing. After extended time in the field and in conjunction with prolonged water exposure, this corrosion might lead to a vacuum leak at the brake booster. If this were to occur, the brake force support might be reduced, leading to an increase in the brake pedal forces required to decelerate the vehicle, and/or increased stopping distances. Additionally, in rare cases of very severe corrosion, it might be possible for a particularly strong or hard brake application to cause mechanical damage in the brake booster, whereby the connection between brake pedal and brake system would fail. In such a very rare case, it would not be possible to decelerate the vehicle via the brake pedal. The risk of a crash or injury would be increased. The function of the parking brake is not affected by this issue. Before the issue occurs, the driver might notice a change in the brake pedal feel and/or hissing/airflow noises when applying the brake pedal. MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will remove the rubber sleeve from the brake booster housing, check the brake booster on the affected vehicles and, depending on the result of this inspection, replace as necessary. Affected customers will be mailed a recall owner notification letter and instructed to stop driving their vehicles until the inspection process is completed. Prior to performing this Campaign:  VMI must always be checked before performing campaigns to verify that the campaign is required on a specific vehicle. Always check for any other open campaigns, and perform accordingly.  Please review the entire Campaign bulletin and follow the repair procedure exactly as described. Approximately 278,173 vehicles are affected. Order No. P-RC-2022050015 This bulletin has been created and maintained in accordance with MBUSA-SLP S423QH001, Document and Data Control, and MBUSA-SLP S424HH001, Control of Quality Record 8 P-RC-2022050015 Inspect Brake Booster Return information for rubber sleeve and quick test has been removed. Existing problems that would hinder the inspection procedure or any subsequent repairs must first be rectified and are the responsibility of the customer. Any associated costs are not claimable and should not be included with the campaign claim. Any primary loss which is a direct result of performing the XENTRY test should be submitted on the same claim as the campaign reimbursement. Before starting work, there must be no fault message present in the instrument cluster for the brake system. If a fault message is present before starting work, it must be rectified and is the responsibility of the customer. Any associated costs are not claimable and should not be included with the campaign claim. 1. Flow chart with allowable labor operation codes when submitting a warranty claim. 9 P-RC-2022050015 Check/test procedure A–visual inspection only 1. Open the hood and check the water drains (marking, figure 1) for correct installation and ability to drain. Only for model 251 Clean and correctly install water drains if necessary. Figure 1 10 P-RC-2022050015 2. Remove the rubber sleeve wrapped around the brake booster (A, figure 2) with a suitable tool (hook and side cutting pliers). If the rubber sleeve is not present, please proceed to check/test procedure A1. The rubber sleeve should be separated above the barcode label on the brake booster as seen in (A, figure 2 and B, figure 4.1). Figure 2 3. Take a photo of the rubber sleeve with the VIN label of the B-pillar (A, figures 3 and 4) and store to a local HDD/computer storage location with the vehicle service file and attach it to the warranty claim in EVA. These pictures serve as documentation of the current condition of the brake booster. Figure 3 Figure 4 11 P-RC-2022050015 4. Check corrosion of the brake booster using the removed rubber sleeve. Use figures 5, 6 and 7 to assess corrosion. Brake booster OK: Multiple point-shaped corrosion marks (figure 5) are permissible. A maximum of one point-shaped corrosion mark with a diameter greater than 15 mm (figures 6 and 7) is permitted. Figure 5 OK Figure 6 OK Figure 7 OK Brake booster not OK: Widespread corrosion marks spanning the rubber sleeve are not permissible. More than one corrosion mark with a diameter greater than 15 mm is not permissible. a. Corrosion measurements Exceeds thresholds-NOK: Carry out check/test procedure B – XENTRY/DAS. b. Corrosion measurements Does not exceed threshold-OK (figure 5, 6 or 7): End measure. (Certificate of Passed Initial Diagnostic Brake Test not required). If the measure is ended, do not re-install a new rubber sleeve. Apply marking with white touch-up paint pen (1, figure 8) to the brake booster checked. Under no circumstances should you treat the brake booster with anti-corrosion agent. The findings from the check/test procedure must be documented on the Repair Order and included in the dealer text in the warranty claim in EVA. 12 P-RC-2022050015 Check/test procedure A1 – visual inspection only if no rubber sleeve is present 1. Take a photo of the barcode label (B, figure 8) on the brake booster and store to a local HDD/computer storage location with the vehicle service file and attach to the warranty claim in EVA. Figure 8 1. Check sequence of numbers on the barcode label (C, figure 9). a. If the numeric sequence between numbers 13 and 17 is less than “15126”: Carry out scope of testing B – XENTRY/DAS. b. If the numeric sequence between numbers 13 and 17 is greater than or equal to “15126”: End measure. Figure 9 13 P-RC-2022050015 Check/test procedure B – XENTRY/DAS This step is only to be used if step A or A1 has failed Ensure use of XENTRY Diagnosis version 03/2022 or higher. The current version of all add-ons must be installed. Make sure to follow the operation steps exactly as described in XENTRY Diagnosis. 1. Connect XENTRY Diagnosis. XENTRY must be connected via the cable with VCI/SD Connect. Note regarding vehicles with KeylessGo: Remove KeylessGo start button and perform test with ignition key. Do not perform any unnecessary braking procedures (maximum full-stop braking) before the test. As a rule, the test should be performed nonstop without interruption. In certain conditions, the XENTRY scope of testing can be interrupted while the test is ongoing (e.g. hydraulic system is leaky) (cancellation). In this case, please follow the user guidance in XENTRY/DAS Diagnosis, because notes on the causes will be displayed for you. IMPORTANT: If XENTRY/DAS Diagnosis requests that the brake pedal be withdrawn into the starting position toward the driver, this must be done by means of a powerful foot motion. Check brake booster with XENTRY/DAS. To do this, select the menu item “Main groups – Control units – Chassis – ESP-Electronic Stability Program – Complete list of guided tests – Braking power”. Then follow the user guidance in XENTRY/DAS Diagnosis. Print out the brake force “event log” after the test and store to a local HDD/computer storage location. a. XENTRY/DAS test not passed: Please perform this test again. Only perform this test twice. b. XENTRY/DAS test passed: Continue with operation step 2. If the XENTRY/DAS test was not passed the first time, you must perform a second XENTRY/DAS test. If this second test is now passed, continue with the operation step 2 of scope of testing B. IMPORTANT: Only perform the second test if the first XENTRY/DAS test was not passed. The second test must be invoiced using operation number 02-0245 or 02-0246. a. XENTRY/DAS test of the second test not passed: Close campaign with claim. See Launch NCU FAQ for mobility solution options to offer to the customer until parts are available and the part can be exchanged. Do not provide customer Certificate of Passed Initial Diagnostic Brake Test. b. XENTRY/DAS test of the second test passed: Continue with operation step 2. 14 P-RC-2022050015 2. Apply marking with white touch-up paint pen (1, figure 10) to the inspected brake booster. Under no circumstances should you treat the brake booster with anti-corrosion agent/paint. Figure 10 3. Print out customer certificate titled “Certificate of Passed Initial Diagnostic Brake Test”, located at the end of this document, fill out, sign, and hand over to the customer. 4. Disconnect XENTRY Diagnosis. 15 P-RC-2022050015 Warranty Information Note: The following allowable labor operation should be used when submitting a warranty claim for this repair: Damage Code Operation Number Description Labor Time (hrs.) 42 900 05 02-0053 Check/test procedure A Check brake unit Includes: Remove rubber sleeve from brake unit and document test result This operation number can be used even if no rubber sleeve is present on the brake unit 0.2 02-0088 Check/test procedure A1 Check barcode on brake unit Only if no rubber sleeve is present on the brake unit End of test: Do not perform any further work. 0.1 End Here If Vehicle Passed Visual Inspection 02-0054* Check/test procedure B Check brake unit using XENTRY Diagnosis Findings: OK Includes: Connect/disconnect XENTRY 0.4 End Here If Vehicle Failed Visual Inspection & Passed 1st XENTRY Check 02-0058* Check/test procedure B Check brake unit using XENTRY Diagnosis Findings: not OK Includes: Connect/disconnect XENTRY Repeat scope of testing with the result of test item 02-0223 or 02-0224. 0.4 02-0223** Check/test procedure B – 2nd XENTRY/DAS test Extra work for: G 02 0058: Check brake unit with XENTRY Diagnosis – findings OK The second time the vehicle was tested, it was found to be OK. 0.2 End Here If Vehicle Failed Visual Inspection & Failed 1st XENTRY Check but Passed 2nd XENTRY Check 02-0224** Check/test procedure B – 2nd XENTRY/DAS test Extra work for: G 02 0058: Check brake unit with XENTRY Diagnosis – findings not OK The second time the vehicle was tested, it was found to be not OK 0.2 * Invoice only operation item 02-0054 or 02-0058. Invoicing both operation items is not permissible. ** Invoice operation item 02-0223 or 02-0224. Invoicing both operation items is not permissible. When using operation item 02-0054 or 02-0223, the Certificate of Passed Initial Diagnostic Brake Test must be handed over to the customer which is located at the end of this document. Note: Always check ASRA for the current OP-Code times. Labor times are subject to change and updates may not be reflected in this document. 16 P-RC-2022050015 Warranty Information For vehicles impacted by the stop drive, MBUSA will allow for reimbursement of several associated ancillary costs as outlined below. These reimbursements are solely to support the implementation of this recall and to reduce the risk of customer inconveniences.  Damage code 99803 01 – Mobile inspection incentive o $150 per vehicle o Claimed separately and on top of the recall inspection  Damage code 99039 01 – Towing o Up to $125 per tow if arranged by customer or dealer outside of normal process o Invoice must be attached to claim o Please use normal CAC tow process whenever possible to alleviate reimbursement  Damage code 99046 01 – Vehicle storage o $15 per vehicle, per day for dealership onsite storage o Up to $56.25 per vehicle, per day for offsite storage o Invoice must be attached to claim o Submit every 30 days and then a final claim to reconcile  Damage code 99047 01 – Active vehicle care during vehicle storage o $300 per vehicle, one-time, for the entire period claimed at the end of the storage period (i.e. wash, maintain battery, move to avoid flat spots and brake corrosion, etc.)  Damage code 99304 01 – Mobility solutions o Up to $2,400 per month for rental vehicle (up to $80/day), loaner ($80/day flat fee), taxi / rideshare services or use of public transportation o Dealers are encouraged to use loaner vehicles for customer requests. See sales NCU on changes to the CVP program and alternate mobility options. o Rental agreement, loaner agreement and/or invoice(s) must be attached to claim o Claims may be submitted on a monthly basis / multiple submissions allowed if needed This support is limited to the end of September 2022 17 P-RC-2022050015 Certificate of Passed Initial Diagnostic Brake Test Recall campaign – Inspect Brake Booster Vehicle identification number: Dear Valued Customer: Your vehicle’s brake booster has been inspected by your authorized Mercedes-Benz service facility for corrosion and functionality under MBUSA Recall Campaign number 2022050015 or 2022050014 bearing NHTSA ID# 22V315. The results of this initial inspection confirm that it is not immediately necessary to replace the brake booster in your vehicle. Therefore, your vehicle is no longer subject to the Stop Drive and may continue to be driven. A mobility solution is no longer necessary. Important! The brake booster may be subject to an additional inspection or a replacement brake booster, whichever comes first, within a period of 2 years from the date of the initial inspection. Mercedes-Benz USA will contact you again by mail to schedule the additional inspection at the appropriate time. If you sell your vehicle in the meantime, you must provide this document to the buyer. The additional inspection of the brake booster is very important to your vehicle’s safety. Therefore, it will be checked whether this has been carried out no later than 2 years after the first inspection. If this additional inspection was not carried out on your vehicle in time, you should stop operating the vehicle. If the described additional inspection is not completed, advanced corrosion in the joint area of the housing could potentially impair the function of the brake booster. This might increase the required brake pedal force and possibly extend the stopping distance. In very rare cases, it cannot be completely ruled out that mechanical damage to the brake booster might occur, whereby the connection between brake pedal and brake system would fail. In that condition, the vehicle would no longer be decelerated via the service brake which would increase the risk of a crash or injury. Date of inspection: Signature of Mercedes-Benz Dealer

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Updated Recall Campaign Launch Notification – STOP DRIVE

UPDATE: June 22, 2022

Inspect Brake Booster with Pedal Rework

Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis IMPORTANT RECALL CAMPAIGN UPDATE STOP DRIVE NOTIFICATION! Please see the attached documents related to the campaign listed above, which include: Topic Page Launch NCU 2 Frequently Asked Questions (FAQ) a.What is this Recall b.Mobility c.Storage d.Reimbursement e.Miscellaneous3 Work Instructions 7 Warranty Information & Parts Return Instructions 15 Certificate of Passed Initial Diagnostic Brake Test 18 Please note that all customer inquiries should be directed to the Customer Assistance Center at 1-888-548-8514. Sincerely, Gregory Gunther Department Manager, Vehicle Compliance & Analysis TO: Mercedes-Benz Dealer Principals, General Managers, Sales Managers, Service Managers, Parts Managers FROM: Gregory Gunther, Department Manager, Vehicle Compliance and Analysis, Engineering Services RE: Updated Recall Campaign Launch Notification – STOP DRIVE Inspect Brake Booster with Pedal Rework MY07-08 GL-Class, ML-Class, R-Class (X164, W164, 251 platform) UPDATE: June 22, 2022 Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis Recall Campaign Launch Notification June 22, 2022 Campaign No. : NHTSA ID Campaign Desc. : Inspect Brake Booster With Pedal Rework 2022050014 22V315 22P4290006 This is to notify you of an update to the Recall Campaign Launch to inspect the brake booster on 14,123 Model Year (“MY”) 2007-2008 GL-Class, ML-Class, and R-Class (X164, W164 and 251 platform) vehicles. The recall campaign will be visible on the www.safercar.gov website and may generate questions from customers. Affected VINs were flagged in VMI as “OPEN” on May 28, 2022. Background Issue Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2007-2008 ML-Class, GL-Class (W164/X164 platform) and R-Class (251 platform) vehicles, the function of the brake booster might be affected due to advanced corrosion in the joint area of its housing. After extended time in the field and in conjunction with prolonged water exposure, this corrosion might lead to a vacuum leak at the brake booster. If this were to occur, the brake force support might be reduced, leading to an increase in the brake pedal forces required to decelerate the vehicle, and/or increased stopping distances. Additionally, in rare cases of very severe corrosion, it might be possible for a particularly strong or hard brake application to cause mechanical damage in the brake booster, whereby the connection between brake pedal and brake system would fail. In such a very rare case, it would not be possible to decelerate the vehicle via the brake pedal. The risk of a crash or injury would be increased. The function of the parking brake is not affected by this issue. Before the issue occurs, the driver might notice a change in the brake pedal feel and/or hissing/airflow noises when applying the brake pedal. What We’re Doing MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will remove the rubber sleeve from the brake booster housing, check the brake booster on the affected vehicles and, depending on the result of this inspection, replace as necessary. Affected customers will be mailed a recall owner notification letter and instructed to stop driving their vehicles until the inspection process is completed. Parts The inspection procedure is available and can be performed. Parts are not available at this time should they be needed. Once parts are available, certain customers will be informed via a second owner notification letter to have a final repair performed. Vehicles Affected Vehicle Model Year(s) 2007-2008 Vehicle Model GL-Class, ML-Class, R-Class Vehicle Populations Total Recall Population 14,123 Total Vehicles in Dealer Inventory 0 The vehicles will be flagged as “OPEN” and Work Instructions will be available in Star TekInfo. Customers are advised not to drive their vehicle until an inspection is performed. Based on the results, vehicles may continue to be driven if the inspection is passed, or must be grounded if the inspection is not passed. A follow-up campaign will be issued for any vehicle that requires a brake booster replacement. Until such time, a “Pending” campaign will be assigned to these vehicles to ensure vehicle status is reflected in the VIN look-up tools mentioned below. Additionally, given this notice, it is a violation of Federal Law for car rental companies to rent MY 07-08 GL-Class, ML-Class, and R-Class vehicles covered by this notification until the vehicle has been inspected and passed, or grounded until parts become available and the remedy performed. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis FAQs SUMMARY OF RECALL 1.What is the recall about? a. The recall campaign is related to the brake booster housing. Specifically, advanced corrosion may have formed on the housing, which could lead to a vacuum leak and impairment to brake effectiveness. 2.What’s the difference between Campaign 2022050014 and 2022050015. a. The inspection is the same, however, they have different damage codes. So please follow the instructions exactly for the respective campaign for your vehicle. 3.Can I continue to drive the car? a. Your safety is our highest priority. MBUSA advises customers to stop driving the vehicle until the first inspection is performed. Customers will be notified by first class mail to schedule an appointment to have the inspection performed by an authorized dealer.4.Why are other models not included? a. Only ML- (MY2006 – 2011), GL- (MY2007 – 2012), and R- (MY2006 – 2012) Class vehicles are fitted with the affected brake booster utilizing a rubber sleeve. Other models are not fitted with this rubber sleeve. Affected vehicles have been identified within this recall. 5.What types of repairs or replacements part(s) are needed? a. Affected vehicles will be inspected as a first step. After this inspection, the vehicle will be given1 of 3 statuses. A. Inspected with no advanced corrosion: The rubber sleeve will be removed. The vehicle can be driven with no further action or customer follow-up required. B. Inspected with advanced corrosion found: A brake efficacy test will be performed. A passed test ensures the tested brake booster can continue to be used and the vehicle driven up to a maximum time limit of 2 years. The dealer will provide a “Certificate of Passed Initial Diagnostic Brake Test” detailing that the test has passed. A new notice will be provided to the owner at a later date to bring the vehicle to an authorized Mercedes-Benz dealership for further inspection and potential replacement of the brake booster. Next Steps/Notes Customer Notification Timeline Owner notification letters will be mailed on or before June 30, 2022. AOMS/SOMS AOMs – This recall may generate questions from your dealers. Please forward this notice to your dealers ASAP. Rental Fleet Partners Affected vehicles in your fleet should not be driven until the inspection has been performed and passed. Please contact your respective MBUSA fleet representative for further information and next steps. For repairs, please contact your preferred MBUSA dealer. While we regret any inconvenience this may cause, MBUSA is determined to maintain a high level of vehicle quality and customer satisfaction. Please refer all customer inquiries to the Customer Assistance Center at 1-888-548-8514. Please anticipate longer than usual wait times to reach an agent as is typical for any recall of large volume. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis C. Inspected with advanced corrosion and brake efficacy test does not pass: The vehicle will require the brake booster housing to be replaced when parts are available. Until then, the vehicle MUST NOT be driven. 6.Will the dealer repair the vehicle with the same part(s)? a. No. Based on the initial inspection, if a replacement of the brake booster is necessary, the part will be removed and replaced with a new part that does not utilize a rubber sleeve. 7.If advanced corrosion is found (status B, question 5), why must I wait two years – can’t the dealer just replace the brake booster housing now? a. Sufficient part quantities are not yet available to offer a complete repair at this time. Mercedes-Benz assures all customers that the tests performed through the inspection procedure confirm that the brake booster will remain functioning normally until such time an additional inspection is deemed necessary within a 2-year period. Mercedes-Benz is working diligently with its suppliers to procure replacement parts as soon as possible. 8.Will the replacement part(s) fail again? a. No. Provided the recall timelines are followed, the inspections and remedial measures performed by your Mercedes-Benz dealership assure you that the recall condition is remedied. 9.How long will the vehicle need to be in the workshop? a. For your convenience, an authorized Mercedes-Benz dealer will offer mobile inspection at your location of choice. Should you request the vehicle be towed to a workshop, the time for there call will vary and is heavily dependent on towing availability and dealership schedules. The inspection itself will require 1 hour to complete. Your authorized Mercedes-Benz dealer can provide you with a better estimate of the overall time for this inspection. MOBILITY 10.Will the dealer provide a loaner vehicle? a. The dealer may offer to provide a loaner based on loaner vehicle availability. If available, the loaner will be provided free of charge. If no loaner vehicles are available, other solutions will be offered such as taxi/rideshare, public transportation cost reimbursement, and rental reimbursement. See the “Warranty Information” section below for additional information. 11.If I am advised not to drive my vehicle will towing be offered? a. Customers will be notified by first class mail that the inspection can be performed at an authorized dealer. A tow can be completed by the local dealer or by calling 1-888-548-8514. Full details will be available in the owner notification letter. In some locations, a mobile inspection can be performed at a location of the customer’s convenience and towing will not be necessary. All towing will be provided free of charge to complete this recall. 12.Is mobile repair offered for this recall? a. Yes, for your convenience, an authorized Mercedes-Benz dealer will offer mobile inspection at a location of your choice. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis 13.I read a media article that states I should stop driving my vehicle if I own one of the affected vehicles, what should I do? a. A VIN-based recall lookup tool on our MBUSA.com website offers a search feature that will indicate whether a vehicle has been subject to a safety recall. See www.mbusa.com/recall for more details. If your vehicle status is listed as “Recall Currently Pending” or “Open,” the vehicle MUST NOT be driven until the inspection process is performed. Further instructions will be provided based on the results of that inspection. 14.What is Mercedes-Benz going to do for Owners given this inconvenience? a. Mercedes-Benz is committed to the highest level of customer service and while we regret the inconvenience, the safety of our customers is paramount. Mobility solutions and/or reimbursement for mobility will be offered for the duration the customer’s vehicle is affected under this “stop drive” recall. See the “Warranty Information” section below for further information. 15.For cars currently at the dealers, should dealers inform their customers and ensure dealer staff do not drive the vehicle? a. For customers Yes, dealers should inform their customers that the vehicle is under a stop drive recall. The vehicle can be stored at the dealership, or towed to the customer’s residence free of charge. Please contact the CAC at 1-888-548-8514 to schedule a tow. If the customer needs alternative transportation, a mobility solution will be offered to you by the dealer (See FAQ 4). Reimbursements will be provided up to a maximum of $80 per day. b. For dealer staff Dealer staff must NOT drive the vehicle on public roads. Within the confines of the dealership, the vehicle can be driven up to 20 mph. To claim any expenses related to towing and/or storage, see the “Warranty Information” STORAGE 16.Where will the vehicle be stored? a. Customers may store the vehicle at their residence and are encouraged to request their dealer perform a mobile inspection. Should the vehicle not pass the inspection, the vehicle may be continued to be stored at their residence or at their preferred dealer. REIMBURSEMENTS/OWNER PAY 17.Are Owners responsible for expenses related to the recall? a. No. Parts and labor will be provided free of charge. Alternate mobility solutions will be offered via MBUSA and/or an authorized Mercedes-Benz dealership. If the customer exceeds the limits of what Mercedes-Benz offers, they may be responsible for the additional expenses. 18.I may have paid for repairs related to this recall. Will I receive reimbursement? a. Current and previous owners may be eligible to receive reimbursement if they have had a brake booster replacement due to the conditions specified in this recall. Requests for reimbursement may include parts, labor, fees and taxes. Reimbursement may be limited to the amount the Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis repair would have cost if completed by an authorized Mercedes-Benz dealer. Details will be provided in the recall owner notification letter. 19.What happens if the dealer determines repairs aren’t necessary now but Owners experience concerns related to the recall in the future? Are Owners responsible for diagnostic fees/repair costs? a. Any future owner concerns will be evaluated on an individual basis. Extensive analyses were conducted by Mercedes-Benz AG. Based on these analyses, a test method was developed for the workshops which, among other aspects, ensures the functionality of the brake booster by usage of diagnostic-supported test routines. If the dealer determines based on the inspection that the brake booster does not need to be replaced at this time but the owner experiences recall-related concerns in the future, a re-inspection may be carried out within 2 years to ensure the functionality of the brake booster. Parts and labor associated with the recall are free of charge to the customer. 20.I inspected the vehicle and found other brake components to be in need of repair. a. This recall relates to potential advanced corrosion on the brake booster housing. If other brake system component(s) are in need of repair/replacement such that they would impair or hinder performing the inspection for the recall condition, the parts/system must be rectified prior so the initial inspection may be completed. These parts and labor are not covered under this recall. 21.I received a letter but I no longer own the vehicle. How can I update my ownership information? a. Customers should be directed to the MBUSA recall website athttps://www.mbusa.com/en/recall, enter their VIN, and update their contact information. 22.I lost faith in the vehicle and demand MBUSA provide a replacement. a. Such customer inquiries will be evaluated on a case by case basis. Direct the customer to1-888-548-8514. 23.Can/should dealers wholesale/sell affected used car vehicles? a. No. MBUSA advises dealers not to sell used vehicles subject to this recall until the inspection is completed. 24.While performing the Xentry diagnostic test the technician finds a brake fluid leak, can this be covered under warranty? a.Yes. If while performing the inspection procedure other components fail then this would be claimable on the same line as the recall and considered primary loss. 25.While performing the Xentry diagnostic test, the brake line needed to be repaired. How do I address this? a. Follow AR42.10-P-0020A and utilize flaring kit A000 589 20 99 00 to construct brake lines from bulk stock. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis 26. If the vehicle fails the Xentry diagnostic pressure test, does the RO need to stay open? a. No, close the RO and submit the claim based on the warranty codes provided below. The dealership may choose to open another RO until the parts replacement is complete. 27. The customer wishes to keep driving the vehicle and refuses the repair. How do I handle this situation? a. Customer safety is our top priority at Mercedes-Benz. If the customer insists on driving the vehicle despite the warnings associated with a “stop drive” recall, the following language MUST be added to the Repair Order and initialed by the customer: ______ (Initial Here) ASSUMPTION OF RISK FOR REMOVAL OF VEHICLE. I understand that my vehicle is subject to a “Stop Drive” recall and that continuing to drive my vehicle involves inherent risks and dangers of accidents, property loss or damage, and serious personal injury to me and others, as well as potential financial losses. I have carefully considered the extent of the risks involved, and I voluntarily and freely choose to assume these risks. 28. Is there a point of contact for the dealership, AOM’s, or other field personnel to request technical information or assistance relating specifically to the Xentry diagnostic test? a. The Work Instructions and Xentry diagnostic test have been verified prior to the recall launch. Thoroughly read the instructions, directions, and questions as presented in the Xentry diagnostic brake pressure test steps. If there are still questions after completing the first test , please open a PTSS case for the particular process or direction that is unclear. We do not anticipate any questions relating to the test at this time. 29. The customer wishes to keep driving the vehicle and is refusing to initial the “Assumption of Risk” on the Repair Order. How do I handle this situation? a. Follow the same protocol used at your dealership when a customer refuses services offered. Also, make a notation on the RO that “customer refuses to initial the Assumption of Risk.” A customer signature must be recorded on the RO. Campaign No. 2022050014, May 2022 Revision C 06/22/2022 TO: ALL MERCEDES-BENZ CENTERS SUBJECT: Model GL-Class, ML-Class, and R-Class (X164, W164 and 251 platform) Model Year 2007-2008 Inspect Brake Booster – with Pedal Rework Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2007-2008 ML, GL (W164/X164 platform) and R-Class (251 platform) vehicles, the function of the brake booster might be affected due to advanced corrosion in the joint area of its housing. After extended time in the field and in conjunction with prolonged water exposure, this corrosion might lead to a vacuum leak at the brake booster. If this were to occur, the brake force support might be reduced, leading to an increase in the brake pedal forces required to decelerate the vehicle, and/or increased stopping distances. Additionally, in rare cases of very severe corrosion, it might be possible for a particularly strong or hard brake application to cause mechanical damage in the brake booster, whereby the connection between brake pedal and brake system would fail. In such a very rare case, it would not be possible to decelerate the vehicle via the brake pedal. The risk of a crash or injury would be increased. The function of the parking brake is not affected by this issue. Before the issue occurs, the driver might notice a change in the brake pedal feel and/or hissing/airflow noises when applying the brake pedal. MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will remove the rubber sleeve from the brake booster housing, check the brake booster on the affected vehicles and, depending on the result of this inspection, replace as necessary. Affected customers will be mailed a recall owner notification letter and instructed to stop driving their vehicles until the inspection process is completed. Prior to performing this Campaign: VMI must always be checked before performing campaigns to verify that the campaign is required ona specific vehicle. Always check for any other open campaigns, and perform accordingly. Please review the entire Campaign bulletin and follow the repair procedure exactly as described. Approximately 14,123 vehicles are affected. Order No. P-RC-2022050014 This bulletin has been created and maintained in accordance with MBUSA-SLP S423QH001, Document and Data Control, and MBUSA-SLP S424HH001, Control of Quality Record 8 P-RC-2022050014 Inspect Brake Booster Existing problems that would hinder the inspection procedure or any subsequent repairs must first be rectified and are the responsibility of the customer. Any associated costs are not claimable and should not be included with the campaign claim. Any primary loss which is a direct result of performing the XENTRY test should be submitted on the same claim as the campaign reimbursement. Before starting work, there must be no fault message present in the instrument cluster for the brake system. If a fault message is present before starting work, it must be rectified and is the responsibility of the customer. Any associated costs are not claimable and should not be included with the campaign claim. 1.Flow chart with allowable labor operation codes when submitting a warranty claim. 9 P-RC-2022050014 Check/test procedure A–visual inspection only 1. Open the hood and check the water drains (marking, figure 1) for correct installation and ability to drain. Only for model 251 Clean and correctly install water drains if necessary. Figure 1 10 P-RC-2022050014 2. Remove the rubber sleeve wrapped around the brake booster (A, figure 2) with a suitable tool (hook and side cutting pliers). If the rubber sleeve is not present, please proceed to check/test procedure A1. The rubber sleeve should be separated above the barcode label on the brake booster as seen in (A, figure 2 and B, figure 4.1). Figure 2 3. Take a photo of the rubber sleeve with the VIN label of the B-pillar (A, figures 3 and 4) and store to a local HDD/computer storage location with the vehicle service file and attach it to the warranty claim in EVA. These pictures serve as documentation of the current condition of the brake booster. Figure 3 Figure 4 11 P-RC-2022050014 4. Check corrosion of the brake booster using the removed rubber sleeve. Use figures 5, 6 and 7 to assess corrosion. Brake booster OK: Multiple point-shaped corrosion marks (figure 5) are permissible. A maximum of one point-shaped corrosion mark with a diameter greater than 15 mm (figures 6 and 7) is permitted. Figure 5 OK Figure 6 OK Figure 7 OK Brake booster not OK: Widespread corrosion marks spanning the rubber sleeve are not permissible. More than one corrosion mark with a diameter greater than 15 mm is not permissible. a. Corrosion measurements Exceeds thresholds-NOK: Carry out check/test procedure B – XENTRY/DAS. b. Corrosion measurements Does not exceed threshold-OK (figure 5, 6 or 7): End measure. (Certificate of Passed Initial Diagnostic Brake Test not required). If the measure is ended, do not re-install a new rubber sleeve. Apply marking with white touch-up paint pen (1, figure 8) to the brake booster checked. Under no circumstances should you treat the brake booster with anti-corrosion agent. The findings from the check/test procedure must be documented on the Repair Order and included in the dealer text in the warranty claim in EVA. 12 P-RC-2022050014 Check/test procedure A1 – visual inspection only if no rubber sleeve is present 1. Take a photo of the barcode label (B, figure 8) on the brake booster and store to a local HDD/computer storage location with the vehicle service file and attach to the warranty claim in EVA. Figure 8 2. Check sequence of numbers on the barcode label (C, figure 9). a. If the numeric sequence between numbers 13 and 17 is less than “15126”: Carry out scope of testing B – XENTRY/DAS. b. If the numeric sequence between numbers 13 and 17 is greater than or equal to “15126”: End measure. Figure 9 13 P-RC-2022050014 Check/test procedure B – XENTRY/DAS This step is only to be used if step A or A1 has failed Ensure use of XENTRY Diagnosis version 03/2022 or higher. Add-on 22889 and 23043 must be installed, Without the add-on’s, check/test procedure B cannot be performed. Make sure to follow the operation steps exactly as described in XENTRY Diagnosis. 1. Connect XENTRY Diagnosis and create an initial quick test. XENTRY must be connected via the cable with VCI/SD Connect. Note regarding vehicles with KeylessGo: Remove KeylessGo start button and perform test with ignition key. Do not perform any unnecessary braking procedures (maximum full-stop braking) before the test. As a rule, the test should be performed nonstop without interruption. In certain conditions, the XENTRY scope of testing can be interrupted while the test is ongoing (e.g. hydraulic system is leaky) (cancellation). In this case, please follow the user guidance in XENTRY/DAS Diagnosis, because notes on the causes will be displayed for you. IMPORTANT: If XENTRY/DAS Diagnosis requests that the brake pedal be withdrawn into the starting position toward the driver, this must be done by means of a powerful foot motion. Check brake booster with XENTRY/DAS. To do this, select the menu item “Main groups – Control units – Chassis – ESP-Electronic Stability Program – Complete list of guided tests – Braking power”. Then follow the user guidance in XENTRY/DAS Diagnosis. Print out the brake force “event log” after the test and store to a local HDD/computer storage location. a. XENTRY/DAS test not passed: Please perform this test again. Only perform this test twice. b. XENTRY/DAS test passed: Continue with operation step 2. If the XENTRY/DAS test was not passed the first time, you must perform a second XENTRY/DAS test. If this second test is now passed, continue with the operation step 2 of scope of testing B. IMPORTANT: Only perform the second test if the first XENTRY/DAS test was not passed. The second test must be invoiced using operation number 02-0245 or 02-0246. a. XENTRY/DAS test of the second test not passed: Close campaign with claim. See Launch NCU FAQ for mobility solution options to offer to the customer until parts are available and the part can be exchanged. Do not provide customer Certificate of Passed Initial Diagnostic Brake Test. b. XENTRY/DAS test of the second test passed: Continue with operation step 2. 14 P-RC-2022050014 2. Apply marking with white touch-up paint pen (1, figure 10) to the inspected brake booster. Under no circumstances should you treat the brake booster with anti-corrosion agent/paint. Figure 10 3. Print out customer certificate titled “Certificate of Passed Initial Diagnostic Brake Test”, located at the end of this document, fill out, sign, and hand over to the customer. 4. Disconnect XENTRY Diagnosis. 15 P-RC-2022050014 Primary Parts Information Qty. Part Name Part Number 0.1 Rubber Sleeve SLEEVE Warranty Information Note on the claim submission: Please ensure you claim 0.1 quantity for part number = SLEEVE (uppercase) for all rubber sleeve removal labor claims. This will result in QEC part return request in the NetStar Parts Disposition application. Claims in which the quantity exceeds 0.1 will be stopped in error in EVA until corrected. Be aware that a claim stopped in error will not close the campaign and will not allow payment to the dealer so please correct these errors immediately. Note on the return shipment: • For each vehicle processed, print out the part return barcode from the NetStar Parts Disposition application • Pack the rubber sleeve with the part return barcode in a plastic bag and seal securely with barcode visible from the outside (see figure 1).  For Dedicated Delivery Service (DDS) dealers, please forward parts in bulk (10-20 pcs per Load List unless time does not permit) to your facing PDC using the normal DDS warranty parts return process. Please ensure you include a Dealer Return slip marked for Warranty.  For non-DDS dealers, please forward parts in bulk (10-20 pcs per Load List unless time does not permit) directly to the QEC using the normal FedEx Ground warranty parts return process. All rubber sleeves should be individually tagged with a warranty parts return barcode and bagged. Recommend that bulk sleeve shipments are placed into a single overpack bag and then packaged in a small box with a copy of the Load List affixed to the box. Failure to return the rubber sleeve within the pre-defined time period will result in a non-return part debit. If there are any questions pertaining to parts return, please submit a WSG Parts Disposition case online 16 P-RC-2022050014 Note: The following allowable labor operation should be used when submitting a warranty claim for this repair: Damage Code Operation Number Description Labor Time (hrs.) 42 900 06 02-0036 Check/test procedure A Check brake unit Includes: Remove rubber sleeve from brake unit and document test result This operation number can be used even if no rubber sleeve is present on the brake unit 0.2 02-0037 Pack up the rubber sleeve for the brake unit and dispatch 0.1 02-0089 Check/test procedure A1 Check barcode on brake unit Only if no rubber sleeve is present on the brake unit End of test: Do not perform any further work. 0.1 End Here If Vehicle Passed Visual Inspection 02-0039 Check/test procedure B Perform quick test (with XENTRY/DAS connected) 0.1 02-0038* Check/test procedure B Check brake unit using XENTRY Diagnosis Findings: OK Includes: Connect/disconnect XENTRY 0.4 End Here If Vehicle Failed Visual Inspection & Passed 1st XENTRY Check 02-0044* Check/test procedure B Check brake unit using XENTRY Diagnosis Findings: not OK Includes: Connect/disconnect XENTRY Repeat scope of testing with the result of test item 02-0245 or 02-0246. 0.4 02-0245** Check/test procedure B – 2nd XENTRY/DAS test Extra work for: G 02 0044: Check brake unit with XENTRY Diagnosis – findings OK The second time the vehicle was tested, it was found to be OK. 0.2 End Here If Vehicle Failed Visual Inspection & Failed 1st XENTRY Check but Passed 2nd XENTRY Check 02-0246** Check/test procedure B – 2nd XENTRY/DAS test Extra work for: G 02 0044: Check brake unit with XENTRY Diagnosis – findings not OK The second time the vehicle was tested, it was found to be not OK 0.2 * Invoice only operation item 02-0038 or 02-0044. Invoicing both operation items is not permissible. ** Invoice operation item 02-0245 or 02-0246. Invoicing both operation items is not permissible. When using operation item 02-0038 or 02-0245, the Certificate of Passed Initial Diagnostic Brake Test must be handed over to the customer which is located at the end of this document. Note: Always check ASRA for the current OP-Code times. Labor times are subject to change and updates may not be reflected in this document. 17 P-RC-2022050014 Warranty Information For vehicles impacted by the stop drive, MBUSA will allow for reimbursement of several associated ancillary costs as outlined below. These reimbursements are solely to support the implementation of this recall and to reduce the risk of customer inconveniences.  Damage code 99803 01 – Mobile inspection incentive o $150 per vehicle o Claimed separately and on top of the recall inspection  Damage code 99039 01 – Towing o Up to $125 per tow if arranged by customer or dealer outside of normal process o Invoice must be attached to claim o Please use normal CAC tow process whenever possible to alleviate reimbursement  Damage code 99046 01 – Vehicle storage o $15 per vehicle, per day for dealership onsite storage o Up to $56.25 per vehicle, per day for offsite storage o Invoice must be attached to claim o Submit every 30 days and then a final claim to reconcile  Damage code 99047 01 – Active vehicle care during vehicle storage o $300 per vehicle, one-time, for the entire period claimed at the end of the storage period (i.e. wash, maintain battery, move to avoid flat spots and brake corrosion, etc.)  Damage code 99304 01 – Mobility solutions o Up to $2,400 per month for rental vehicle (up to $80/day), loaner ($80/day flat fee), taxi / rideshare services or use of public transportation o Dealers are encouraged to use loaner vehicles for customer requests. See sales NCU on changes to the CVP program and alternate mobility options. o Rental agreement, loaner agreement and/or invoice(s) must be attached to claim o Claims may be submitted on a monthly basis / multiple submissions allowed if needed This support is limited to the end of September 2022 18 P-RC-2022050014 Certificate of Passed Initial Diagnostic Brake Test Recall campaign – Inspect Brake Booster Vehicle identification number: Dear Valued Customer: Your vehicle’s brake booster has been inspected by your authorized Mercedes-Benz service facility for corrosion and functionality under MBUSA Recall Campaign number 2022050015 or 2022050014 bearing NHTSA ID# 22V315. The results of this initial inspection confirm that it is not immediately necessary to replace the brake booster in your vehicle. Therefore, your vehicle is no longer subject to the Stop Drive and may continue to be driven. A mobility solution is no longer necessary. Important! The brake booster may be subject to an additional inspection or a replacement brake booster, whichever comes first, within a period of 2 years from the date of the initial inspection. Mercedes-Benz USA will contact you again by mail to schedule the additional inspection at the appropriate time. If you sell your vehicle in the meantime, you must provide this document to the buyer. The additional inspection of the brake booster is very important to your vehicle’s safety. Therefore, it will be checked whether this has been carried out no later than 2 years after the first inspection. If this additional inspection was not carried out on your vehicle in time, you should stop operating the vehicle. If the described additional inspection is not completed, advanced corrosion in the joint area of the housing could potentially impair the function of the brake booster. This might increase the required brake pedal force and possibly extend the stopping distance. In very rare cases, it cannot be completely ruled out that mechanical damage to the brake booster might occur, whereby the connection between brake pedal and brake system would fail. In that condition, the vehicle would no longer be decelerated via the service brake which would increase the risk of a crash or injury. Date of inspection: Signature of Mercedes-Benz Dealer

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Updated Recall Campaign Launch Notification – STOP DRIVE
Inspect Brake Booster without Pedal Rework

UPDATE: June 22, 2022

Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis IMPORTANT RECALL CAMPAIGN UPDATE STOP DRIVE NOTIFICATION! Please see the attached documents related to the campaign listed above, which include: Topic Page Launch NCU 2 Frequently Asked Questions (FAQ) a. What is this Recall b. Mobility c. Storage d. Reimbursement e.Miscellaneous3 Work Instructions 7 Warranty Information & Parts Return Instructions 15 Certificate of Passed Initial Diagnostic Brake Test 18 Please note that all customer inquiries should be directed to the Customer Assistance Center at 1-888-548-8514. Sincerely, Gregory Gunther Department Manager, Vehicle Compliance & Analysis TO: Mercedes-Benz Dealer Principals, General Managers, Sales Managers, Service Managers, Parts Managers FROM: Gregory Gunther, Department Manager, Vehicle Compliance and Analysis, Engineering Services RE: Updated Recall Campaign Launch Notification – STOP DRIVE Inspect Brake Booster without Pedal Rework MY06-12 GL-Class, ML-Class, R-Class (X164, W164, 251 platform) UPDATE: June 22, 2022 Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis Recall Campaign Launch Notification June 22, 2022 Campaign No. : NHTSA ID Campaign Desc. : Inspect Brake Booster Without Pedal Rework 2022050015 22V315 22P4290005 This is to notify you of an update to the Recall Campaign Launch to inspect the brake booster on 278,173 Model Year (“MY”) 2006-2012 GL-Class, ML-Class, and R-Class (X164, W164 and 251 platform) vehicles. The recall campaign will be visible on the www.safercar.gov website and may generate questions from customers. Affected VINs were flagged in VMI as “OPEN” on May 28, 2022. Background Issue Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2006-2012 ML-Class, GL-Class (W164/X164 platform) and R-Class (251 platform) vehicles, the function of the brake booster might be affected due to advanced corrosion in the joint area of its housing. After extended time in the field and in conjunction with prolonged water exposure, this corrosion might lead to a vacuum leak at the brake booster. If this were to occur, the brake force support might be reduced, leading to an increase in the brake pedal forces required to decelerate the vehicle, and/or increased stopping distances. Additionally, in rare cases of very severe corrosion, it might be possible for a particularly strong or hard brake application to cause mechanical damage in the brake booster, whereby the connection between brake pedal and brake system would fail. In such a very rare case, it would not be possible to decelerate the vehicle via the brake pedal. The risk of a crash or injury would be increased. The function of the parking brake is not affected by this issue. Before the issue occurs, the driver might notice a change in the brake pedal feel and/or hissing/airflow noises when applying the brake pedal. What We’re Doing MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will remove the rubber sleeve from the brake booster housing, check the brake booster on the affected vehicles and, depending on the result of this inspection, replace as necessary. Affected customers will be mailed a recall owner notification letter and instructed to stop driving their vehicles until the inspection process is completed. Parts The inspection procedure is available and can be performed. Parts are not available at this time should they be needed. Once parts are available, certain customers will be informed via a second owner notification letter to have a final repair performed. Vehicles Affected Vehicle Model Year(s) 2006-2012 Vehicle Model GL-Class, ML-Class, R-Class Vehicle Populations Total Recall Population 278,173 Total Vehicles in Dealer Inventory 0 The vehicles will be flagged as “OPEN” and Work Instructions will be available in Star TekInfo. Customers are advised not to drive their vehicle until an inspection is performed. Based on the results, vehicles may continue to be driven if the inspection is passed, or must be grounded if the inspection is not passed. A follow-up campaign will be issued for any vehicle that requires a brake booster replacement. Until such time, a “Pending” campaign will be assigned to these vehicles to ensure vehicle status is reflected in the VIN look-up tools mentioned below. Additionally, given this notice, it is a violation of Federal Law for car rental companies to rent MY 06-12 GL-Class, ML-Class, and R-Class vehicles covered by this notification until the vehicle has been inspected and passed, or grounded until parts become available and the remedy performed. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis FAQs SUMMARY OF RECALL 1.What is the recall about? a. The recall campaign is related to the brake booster housing. Specifically, advanced corrosion may have formed on the housing, which could lead to a vacuum leak and impairment to brake effectiveness. 2.What’s the difference between Campaign 2022050014 and 2022050015. a. The inspection is the same, however, they have different damage codes. So please follow the instructions exactly for the respective campaign for your vehicle. 3.Can I continue to drive the car? a. Your safety is our highest priority. MBUSA advises customers to stop driving the vehicle until the first inspection is performed. Customers will be notified by first class mail to schedule an appointment to have the inspection performed by an authorized dealer.4.Why are other models not included? a. Only ML- (MY2006 – 2011), GL- (MY2007 – 2012), and R- (MY2006 – 2012) Class vehicles are fitted with the affected brake booster utilizing a rubber sleeve. Other models are not fitted with this rubber sleeve. Affected vehicles have been identified within this recall. 5.What types of repairs or replacements part(s) are needed? a. Affected vehicles will be inspected as a first step. After this inspection, the vehicle will be given1 of 3 statuses. A. Inspected with no advanced corrosion: The rubber sleeve will be removed. The vehicle can be driven with no further action or customer follow-up required. B. Inspected with advanced corrosion found: A brake efficacy test will be performed. A passed test ensures the tested brake booster can continue to be used and the vehicle driven up to a maximum time limit of 2 years. The dealer will provide a “Certificate of Passed Initial Diagnostic Brake Test” detailing that the test has passed. A new notice will be provided to the owner at a later date to bring the vehicle to an authorized Mercedes-Benz dealership for further inspection and potential replacement of the brake booster. Next Steps/Notes Customer Notification Timeline Owner notification letters will be mailed on or before June 30, 2022. AOMS/SOMS AOMs – This recall may generate questions from your dealers. Please forward this notice to your dealers ASAP. Rental Fleet Partners Affected vehicles in your fleet should not be driven until the inspection has been performed and passed. Please contact your respective MBUSA fleet representative for further information and next steps. For repairs, please contact your preferred MBUSA dealer. While we regret any inconvenience this may cause, MBUSA is determined to maintain a high level of vehicle quality and customer satisfaction. Please refer all customer inquiries to the Customer Assistance Center at 1-888-548-8514. Please anticipate longer than usual wait times to reach an agent as is typical for any recall of large volume. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis C .Inspected with advanced corrosion and brake efficacy test does not pass: The vehicle will require the brake booster housing to be replaced when parts are available. Until then, the vehicle MUST NOT be driven. 6.Will the dealer repair the vehicle with the same part(s)? a. No. Based on the initial inspection, if a replacement of the brake booster is necessary, the part will be removed and replaced with a new part that does not utilize a rubber sleeve. 7.If advanced corrosion is found (status B, question 5), why must I wait two years – can’t the dealer just replace the brake booster housing now? a. Sufficient part quantities are not yet available to offer a complete repair at this time. Mercedes-Benz assures all customers that the tests performed through the inspection procedure confirm that the brake booster will remain functioning normally until such time an additional inspection is deemed necessary within a 2-year period. Mercedes-Benz is working diligently with its suppliers to procure replacement parts as soon as possible. 8.Will the replacement part(s) fail again? a. No. Provided the recall timelines are followed, the inspections and remedial measures performed by your Mercedes-Benz dealership assure you that the recall condition is remedied. 9.How long will the vehicle need to be in the workshop? a. For your convenience, an authorized Mercedes-Benz dealer will offer mobile inspection at your location of choice. Should you request the vehicle be towed to a workshop, the time for the recall will vary and is heavily dependent on towing availability and dealership schedules. The inspection itself will require 1 hour to complete. Your authorized Mercedes-Benz dealer can provide you with a better estimate of the overall time for this inspection. MOBILITY 10.Will the dealer provide a loaner vehicle? a. The dealer may offer to provide a loaner based on loaner vehicle availability. If available, the loaner will be provided free of charge. If no loaner vehicles are available, other solutions will be offered such as taxi/rideshare, public transportation cost reimbursement, and rental reimbursement. See the “Warranty Information” section below for additional information. 11.If I am advised not to drive my vehicle will towing be offered? a. Customers will be notified by first class mail that the inspection can be performed at an authorized dealer. A tow can be completed by the local dealer or by calling 1-888-548-8514. Full details will be available in the owner notification letter. In some locations, a mobile inspection can be performed at a location of the customer’s convenience and towing will not be necessary. All towing will be provided free of charge to complete this recall. 12.Is mobile repair offered for this recall? a. Yes, for your convenience, an authorized Mercedes-Benz dealer will offer mobile inspection at a location of your choice. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis 13.I read a media article that states I should stop driving my vehicle if I own one of the affected vehicles, what should I do? a. A VIN-based recall lookup tool on our MBUSA.com website offers a search feature that will indicate whether a vehicle has been subject to a safety recall. See www.mbusa.com/recall for more details. If your vehicle status is listed as “Recall Currently Pending” or “Open,” the vehicle MUST NOT be driven until the inspection process is performed. Further instructions will be provided based on the results of that inspection. 14.What is Mercedes-Benz going to do for Owners given this inconvenience? a. Mercedes-Benz is committed to the highest level of customer service and while we regret the inconvenience, the safety of our customers is paramount. Mobility solutions and/or reimbursement for mobility will be offered for the duration the customer’s vehicle is affected under this “stop drive” recall. See the “Warranty Information” section below for further information. 15.For cars currently at the dealers, should dealers inform their customers and ensure dealer staff do not drive the vehicle? a. For customers Yes, dealers should inform their customers that the vehicle is under a stop drive recall. The vehicle can be stored at the dealership, or towed to the customer’s residence free of charge. Please contact the CAC at 1-888-548-8514 to schedule a tow. If the customer needs alternative transportation, a mobility solution will be offered to you by the dealer (See FAQ 4). Reimbursements will be provided up to a maximum of $80 per day. b. For dealer staff Dealer staff must NOT drive the vehicle on public roads. Within the confines of the dealership, the vehicle can be driven up to 20 mph. To claim any expenses related to towing and/or storage, see the “Warranty Information” STORAGE 16.Where will the vehicle be stored? a. Customers may store the vehicle at their residence and are encouraged to request their dealer perform a mobile inspection. Should the vehicle not pass the inspection, the vehicle may be continued to be stored at their residence or at their preferred dealer. REIMBURSEMENTS/OWNER PAY 17.Are Owners responsible for expenses related to the recall? a. No. Parts and labor will be provided free of charge. Alternate mobility solutions will be offered via MBUSA and/or an authorized Mercedes-Benz dealership. If the customer exceeds the limits of what Mercedes-Benz offers, they may be responsible for the additional expenses. 18.I may have paid for repairs related to this recall. Will I receive reimbursement? a. Current and previous owners may be eligible to receive reimbursement if they have had a brake booster replacement due to the conditions specified in this recall. Requests for reimbursement may include parts, labor, fees and taxes. Reimbursement may be limited to the amount the Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis repair would have cost if completed by an authorized Mercedes-Benz dealer. Details will be provided in the recall owner notification letter. 19.What happens if the dealer determines repairs aren’t necessary now but Owners experience concerns related to the recall in the future? Are Owners responsible for diagnostic fees/repair costs? a. Any future owner concerns will be evaluated on an individual basis. Extensive analyses were conducted by Mercedes-Benz AG. Based on these analyses, a test method was developed for the workshops which, among other aspects, ensures the functionality of the brake booster by usage of diagnostic-supported test routines. If the dealer determines based on the inspection that the brake booster does not need to be replaced at this time but the owner experiences recall-related concerns in the future, a re-inspection may be carried out within 2 years to ensure the functionality of the brake booster. Parts and labor associated with the recall are free of charge to the customer. 20.I inspected the vehicle and found other brake components to be in need of repair. a. This recall relates to potential advanced corrosion on the brake booster housing. If other brake system component(s) are in need of repair/replacement such that they would impair or hinder performing the inspection for the recall condition, the parts/system must be rectified prior so the initial inspection may be completed. These parts and labor are not covered under this recall. 21.I received a letter but I no longer own the vehicle. How can I update my ownership information? a. Customers should be directed to the MBUSA recall website athttps://www.mbusa.com/en/recall, enter their VIN, and update their contact information. 22.I lost faith in the vehicle and demand MBUSA provide a replacement. a. Such customer inquiries will be evaluated on a case by case basis. Direct the customer to1-888-548-8514. 23.Can/should dealers wholesale/sell affected used car vehicles? a. No. MBUSA advises dealers not to sell used vehicles subject to this recall until the inspection is completed. 24.While performing the Xentry diagnostic test the technician finds a brake fluid leak, can this be covered under warranty? a. Yes. If while performing the inspection procedure other components fail then this would be claimable on the same line as the recall and considered primary loss. 25.While performing the Xentry diagnostic test, the brake line needed to be repaired. How do I address this? a. Follow AR42.10-P-0020A and utilize flaring kit A000 589 20 99 00 to construct brake lines from bulk stock. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis 26.If the vehicle fails the Xentry diagnostic pressure test, does the RO need to stay open? No, close the RO and submit the claim based on the warranty codes provided below. The dealership may choose to open another RO until the parts replacement is complete. 27.The customer wishes to keep driving the vehicle and refuses the repair. How do I handle this situation? a. Customer safety is our top priority at Mercedes-Benz. If the customer insists on driving the vehicle despite the warnings associated with a “stop drive” recall, the following language MUST be added to the Repair Order and initialed by the customer: ______ (Initial Here) ASSUMPTION OF RISK FOR REMOVAL OF VEHICLE. I understand that my vehicle is subject to a “Stop Drive” recall and that continuing to drive my vehicle involves inherent risks and dangers of accidents, property loss or damage, and serious personal injury to me and others, as well as potential financial losses. I have carefully considered the extent of the risks involved, and I voluntarily and freely choose to assume these risks. 28.Is there a point of contact for the dealership, AOM’s, or other field personnel to requesttechnical information or assistance relating specifically to the Xentry diagnostic test? a.The Work Instructions and Xentry diagnostic test have been verified prior to the recall launch.Thoroughly read the instructions, directions, and questions as presented in the Xentry diagnosticbrake pressure test steps. If there are still questions after completing the first test , please opena PTSS case for the particular process or direction that is unclear. We do not anticipate anyquestions relating to the test at this time. 29.The customer wishes to keep driving the vehicle and is refusing to initial the “Assumption ofRisk” on the Repair Order. How do I handle this situation? a.Follow the same protocol used at your dealership when a customer refuses services offered.Also, make a notation on the RO that “customer refuses to initial the Assumption of Risk.” Acustomer signature must be recorded on the RO. Campaign No. 2022050015, May 2022 Revision C 06/22/2022 TO: ALL MERCEDES-BENZ CENTERS SUBJECT: Model GL-Class, ML-Class, and R-Class (X164, W164 and 251 platform) Model Year 2006-2012 Inspect Brake Booster – without Pedal Rework Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2006-2012 ML, GL (W164/X164 platform) and R-Class (251 platform) vehicles, the function of the brake booster might be affected due to advanced corrosion in the joint area of its housing. After extended time in the field and in conjunction with prolonged water exposure, this corrosion might lead to a vacuum leak at the brake booster. If this were to occur, the brake force support might be reduced, leading to an increase in the brake pedal forces required to decelerate the vehicle, and/or increased stopping distances. Additionally, in rare cases of very severe corrosion, it might be possible for a particularly strong or hard brake application to cause mechanical damage in the brake booster, whereby the connection between brake pedal and brake system would fail. In such a very rare case, it would not be possible to decelerate the vehicle via the brake pedal. The risk of a crash or injury would be increased. The function of the parking brake is not affected by this issue. Before the issue occurs, the driver might notice a change in the brake pedal feel and/or hissing/airflow noises when applying the brake pedal. MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will remove the rubber sleeve from the brake booster housing, check the brake booster on the affected vehicles and, depending on the result of this inspection, replace as necessary. Affected customers will be mailed a recall owner notification letter and instructed to stop driving their vehicles until the inspection process is completed. Prior to performing this Campaign: VMI must always be checked before performing campaigns to verify that the campaign is required ona specific vehicle. Always check for any other open campaigns, and perform accordingly. Please review the entire Campaign bulletin and follow the repair procedure exactly as described. Approximately 278,173 vehicles are affected. Order No. P-RC-2022050015 This bulletin has been created and maintained in accordance with MBUSA-SLP S423QH001, Document and Data Control, and MBUSA-SLP S424HH001, Control of Quality Record 8 P-RC-2022050015 Inspect Brake Booster Existing problems that would hinder the inspection procedure or any subsequent repairs must first be rectified and are the responsibility of the customer. Any associated costs are not claimable and should not be included with the campaign claim. Any primary loss which is a direct result of performing the XENTRY test should be submitted on the same claim as the campaign reimbursement. Before starting work, there must be no fault message present in the instrument cluster for the brake system. If a fault message is present before starting work, it must be rectified and is the responsibility of the customer. Any associated costs are not claimable and should not be included with the campaign claim. 1.Flow chart with allowable labor operation codes when submitting a warranty claim. 9 P-RC-2022050015 Check/test procedure A–visual inspection only 1. Open the hood and check the water drains (marking, figure 1) for correct installation and ability to drain. Only for model 251 Clean and correctly install water drains if necessary. Figure 1 10 P-RC-2022050015 2. Remove the rubber sleeve wrapped around the brake booster (A, figure 2) with a suitable tool (hook and side cutting pliers). If the rubber sleeve is not present, please proceed to check/test procedure A1. The rubber sleeve should be separated above the barcode label on the brake booster as seen in (A, figure 2 and B, figure 4.1). Figure 2 3. Take a photo of the rubber sleeve with the VIN label of the B-pillar (A, figures 3 and 4) and store to a local HDD/computer storage location with the vehicle service file and attach it to the warranty claim in EVA. These pictures serve as documentation of the current condition of the brake booster. Figure 3 Figure 4 11 P-RC-2022050015 4. Check corrosion of the brake booster using the removed rubber sleeve. Use figures 5, 6 and 7 to assess corrosion. Brake booster OK: Multiple point-shaped corrosion marks (figure 5) are permissible. A maximum of one point-shaped corrosion mark with a diameter greater than 15 mm (figures 6 and 7) is permitted. Figure 5 OK Figure 6 OK Figure 7 OK Brake booster not OK: Widespread corrosion marks spanning the rubber sleeve are not permissible. More than one corrosion mark with a diameter greater than 15 mm is not permissible. a. Corrosion measurements Exceeds thresholds-NOK: Carry out check/test procedure B – XENTRY/DAS. b. Corrosion measurements Does not exceed threshold-OK (figure 5, 6 or 7): End measure. (Certificate of Passed Initial Diagnostic Brake Test not required). If the measure is ended, do not re-install a new rubber sleeve. Apply marking with white touch-up paint pen (1, figure 8) to the brake booster checked. Under no circumstances should you treat the brake booster with anti-corrosion agent. The findings from the check/test procedure must be documented on the Repair Order and included in the dealer text in the warranty claim in EVA. 12 P-RC-2022050015 Check/test procedure A1 – visual inspection only if no rubber sleeve is present 1. Take a photo of the barcode label (B, figure 8) on the brake booster and store to a local HDD/computer storage location with the vehicle service file and attach to the warranty claim in EVA. Figure 8 1. Check sequence of numbers on the barcode label (C, figure 9). a. If the numeric sequence between numbers 13 and 17 is less than “15126”: Carry out scope of testing B – XENTRY/DAS. b. If the numeric sequence between numbers 13 and 17 is greater than or equal to “15126”: End measure. Figure 9 13 P-RC-2022050015 Check/test procedure B – XENTRY/DAS This step is only to be used if step A or A1 has failed Ensure use of XENTRY Diagnosis version 03/2022 or higher. Add-on 22889 and 23043 must be installed, Without the add-on’s, check/test procedure B cannot be performed. Make sure to follow the operation steps exactly as described in XENTRY Diagnosis. 1. Connect XENTRY Diagnosis and create an initial quick test. XENTRY must be connected via the cable with VCI/SD Connect. Note regarding vehicles with KeylessGo: Remove KeylessGo start button and perform test with ignition key. Do not perform any unnecessary braking procedures (maximum full-stop braking) before the test. As a rule, the test should be performed nonstop without interruption. In certain conditions, the XENTRY scope of testing can be interrupted while the test is ongoing (e.g. hydraulic system is leaky) (cancellation). In this case, please follow the user guidance in XENTRY/DAS Diagnosis, because notes on the causes will be displayed for you. IMPORTANT: If XENTRY/DAS Diagnosis requests that the brake pedal be withdrawn into the starting position toward the driver, this must be done by means of a powerful foot motion. Check brake booster with XENTRY/DAS. To do this, select the menu item “Main groups – Control units – Chassis – ESP-Electronic Stability Program – Complete list of guided tests – Braking power”. Then follow the user guidance in XENTRY/DAS Diagnosis. Print out the brake force “event log” after the test and store to a local HDD/computer storage location. a. XENTRY/DAS test not passed: Please perform this test again. Only perform this test twice. b. XENTRY/DAS test passed: Continue with operation step 2. If the XENTRY/DAS test was not passed the first time, you must perform a second XENTRY/DAS test. If this second test is now passed, continue with the operation step 2 of scope of testing B. IMPORTANT: Only perform the second test if the first XENTRY/DAS test was not passed. The second test must be invoiced using operation number 02-0245 or 02-0246. a. XENTRY/DAS test of the second test not passed: Close campaign with claim. See Launch NCU FAQ for mobility solution options to offer to the customer until parts are available and the part can be exchanged. Do not provide customer Certificate of Passed Initial Diagnostic Brake Test. b. XENTRY/DAS test of the second test passed: Continue with operation step 2. 14 P-RC-2022050015 2. Apply marking with white touch-up paint pen (1, figure 10) to the inspected brake booster. Under no circumstances should you treat the brake booster with anti-corrosion agent/paint. Figure 10 3. Print out customer certificate titled “Certificate of Passed Initial Diagnostic Brake Test”, located at the end of this document, fill out, sign, and hand over to the customer. 4. Disconnect XENTRY Diagnosis. 15 P-RC-2022050015 Primary Parts Information Qty. Part Name Part Number 0.1 Rubber Sleeve SLEEVE Warranty Information Note on the claim submission: Please ensure you claim 0.1 quantity for part number = SLEEVE (uppercase) for all rubber sleeve removal labor claims. This will result in QEC part return request in the NetStar Parts Disposition application. Claims in which the quantity exceeds 0.1 will be stopped in error in EVA until corrected. Be aware that a claim stopped in error will not close the campaign and will not allow payment to the dealer so please correct these errors immediately. Note on the return shipment: • For each vehicle processed, print out the part return barcode from the NetStar Parts Disposition application • Pack the rubber sleeve with the part return barcode in a plastic bag and seal securely with barcode visible from the outside (see figure 1).  For Dedicated Delivery Service (DDS) dealers, please forward parts in bulk (10-20 pcs per Load List unless time does not permit) to your facing PDC using the normal DDS warranty parts return process. Please ensure you include a Dealer Return slip marked for Warranty.  For non-DDS dealers, please forward parts in bulk (10-20 pcs per Load List unless time does not permit) directly to the QEC using the normal FedEx Ground warranty parts return process. All rubber sleeves should be individually tagged with a warranty parts return barcode and bagged. Recommend that bulk sleeve shipments are placed into a single overpack bag and then packaged in a small box with a copy of the Load List affixed to the box. Failure to return the rubber sleeve within the pre-defined time period will result in a non-return part debit. If there are any questions pertaining to parts return, please submit a WSG Parts Disposition case online 16 P-RC-2022050015 Note: The following allowable labor operation should be used when submitting a warranty claim for this repair: Damage Code Operation Number Description Labor Time (hrs.) 42 900 05 02-0053 Check/test procedure A Check brake unit Includes: Remove rubber sleeve from brake unit and document test result This operation number can be used even if no rubber sleeve is present on the brake unit 0.2 02-0057 Pack up the rubber sleeve for the brake unit and dispatch 0.1 02-0088 Check/test procedure A1 Check barcode on brake unit Only if no rubber sleeve is present on the brake unit End of test: Do not perform any further work. 0.1 End Here If Vehicle Passed Visual Inspection 02-0060 Check/test procedure B Perform quick test (with XENTRY/DAS connected) 0.1 02-0054* Check/test procedure B Check brake unit using XENTRY Diagnosis Findings: OK Includes: Connect/disconnect XENTRY 0.4 End Here If Vehicle Failed Visual Inspection & Passed 1st XENTRY Check 02-0058* Check/test procedure B Check brake unit using XENTRY Diagnosis Findings: not OK Includes: Connect/disconnect XENTRY Repeat scope of testing with the result of test item 02-0223 or 02-0224. 0.4 02-0223** Check/test procedure B – 2nd XENTRY/DAS test Extra work for: G 02 0058: Check brake unit with XENTRY Diagnosis – findings OK The second time the vehicle was tested, it was found to be OK. 0.2 End Here If Vehicle Failed Visual Inspection & Failed 1st XENTRY Check but Passed 2nd XENTRY Check 02-0224** Check/test procedure B – 2nd XENTRY/DAS test Extra work for: G 02 0058: Check brake unit with XENTRY Diagnosis – findings not OK The second time the vehicle was tested, it was found to be not OK 0.2 * Invoice only operation item 02-0054 or 02-0058. Invoicing both operation items is not permissible. ** Invoice operation item 02-0223 or 02-0224. Invoicing both operation items is not permissible. When using operation item 02-0054 or 02-0223, the Certificate of Passed Initial Diagnostic Brake Test must be handed over to the customer which is located at the end of this document. Note: Always check ASRA for the current OP-Code times. Labor times are subject to change and updates may not be reflected in this document. 17 P-RC-2022050015 Warranty Information For vehicles impacted by the stop drive, MBUSA will allow for reimbursement of several associated ancillary costs as outlined below. These reimbursements are solely to support the implementation of this recall and to reduce the risk of customer inconveniences.  Damage code 99803 01 – Mobile inspection incentive o $150 per vehicle o Claimed separately and on top of the recall inspection  Damage code 99039 01 – Towing o Up to $125 per tow if arranged by customer or dealer outside of normal process o Invoice must be attached to claim o Please use normal CAC tow process whenever possible to alleviate reimbursement  Damage code 99046 01 – Vehicle storage o $15 per vehicle, per day for dealership onsite storage o Up to $56.25 per vehicle, per day for offsite storage o Invoice must be attached to claim o Submit every 30 days and then a final claim to reconcile  Damage code 99047 01 – Active vehicle care during vehicle storage o $300 per vehicle, one-time, for the entire period claimed at the end of the storage period (i.e. wash, maintain battery, move to avoid flat spots and brake corrosion, etc.)  Damage code 99304 01 – Mobility solutions o Up to $2,400 per month for rental vehicle (up to $80/day), loaner ($80/day flat fee), taxi / rideshare services or use of public transportation o Dealers are encouraged to use loaner vehicles for customer requests. See sales NCU on changes to the CVP program and alternate mobility options. o Rental agreement, loaner agreement and/or invoice(s) must be attached to claim o Claims may be submitted on a monthly basis / multiple submissions allowed if needed This support is limited to the end of September 2022 18 P-RC-2022050015 Certificate of Passed Initial Diagnostic Brake Test Recall campaign – Inspect Brake Booster Vehicle identification number: Dear Valued Customer: Your vehicle’s brake booster has been inspected by your authorized Mercedes-Benz service facility for corrosion and functionality under MBUSA Recall Campaign number 2022050015 or 2022050014 bearing NHTSA ID# 22V315. The results of this initial inspection confirm that it is not immediately necessary to replace the brake booster in your vehicle. Therefore, your vehicle is no longer subject to the Stop Drive and may continue to be driven. A mobility solution is no longer necessary. Important! The brake booster may be subject to an additional inspection or a replacement brake booster, whichever comes first, within a period of 2 years from the date of the initial inspection. Mercedes-Benz USA will contact you again by mail to schedule the additional inspection at the appropriate time. If you sell your vehicle in the meantime, you must provide this document to the buyer. The additional inspection of the brake booster is very important to your vehicle’s safety. Therefore, it will be checked whether this has been carried out no later than 2 years after the first inspection. If this additional inspection was not carried out on your vehicle in time, you should stop operating the vehicle. If the described additional inspection is not completed, advanced corrosion in the joint area of the housing could potentially impair the function of the brake booster. This might increase the required brake pedal force and possibly extend the stopping distance. In very rare cases, it cannot be completely ruled out that mechanical damage to the brake booster might occur, whereby the connection between brake pedal and brake system would fail. In that condition, the vehicle would no longer be decelerated via the service brake which would increase the risk of a crash or injury. Date of inspection: Signature of Mercedes-Benz Dealer

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Recall Campaign Launch Notification – STOP DRIVE
Inspect Brake Booster without Pedal Rework

DATE: May 28, 2022

Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis PUBLIC IMPORTANT RECALL CAMPAIGN UPDATE STOP DRIVE NOTIFICATION! Please see the attached documents related to the campaign listed above, which include: Launch NCU Frequently Asked Questions (FAQ) Please note that all customer inquiries should be directed to the Customer Assistance Center at 1-888-548-8514. Sincerely, Gregory Gunther Department Manager, Vehicle Compliance & Analysis TO: Mercedes-Benz Dealer Principals, General Managers, Sales Managers, Service Managers, Parts Managers FROM: Gregory Gunther, Department Manager, Vehicle Compliance and Analysis, Engineering Services RE: Recall Campaign Launch Notification – STOP DRIVE Inspect Brake Booster without Pedal Rework MY06-12 GL-Class, ML-Class, R-Class (X164, W164, 251 platform) DATE: May 28, 2022 Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis PUBLIC Recall Campaign Launch Notification May 28, 2022 Campaign No. : NHTSA ID Campaign Desc. : Inspect Brake Booster Without Pedal Rework 2022050015 22V315 22P4290005 This is to notify you of the Recall Campaign Launch to inspect the brake booster on 278,173 Model Year (“MY”) 2006-2012 GL-Class, ML-Class, and R-Class (X164, W164 and 251 platform) vehicles. The recall campaign will be visible on the www.safercar.gov website and may generate questions from customers. Affected VINs will be flagged in VMI as “OPEN” on May 28, 2022. Background Issue Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2006-2012 ML-Class, GL-Class (W164/X164 platform) and R-Class (251 platform) vehicles, the function of the brake booster might be affected due to advanced corrosion in the joint area of its housing. After extended time in the field and in conjunction with prolonged water exposure, this corrosion might lead to a vacuum leak at the brake booster. If this were to occur, the brake force support might be reduced, leading to an increase in the brake pedal forces required to decelerate the vehicle, and/or increased stopping distances. Additionally, in rare cases of very severe corrosion, it might be possible for a particularly strong or hard brake application to cause mechanical damage in the brake booster, whereby the connection between brake pedal and brake system would fail. In such a very rare case, it would not be possible to decelerate the vehicle via the brake pedal. The risk of a crash or injury would be increased. The function of the parking brake is not affected by this issue. Before the issue occurs, the driver might notice a change in the brake pedal feel and/or hissing/airflow noises when applying the brake pedal. What We’re Doing MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will remove the rubber sleeve from the brake booster housing, check the brake booster on the affected vehicles and, depending on the result of this inspection, replace as necessary. Affected customers will be mailed a recall owner notification letter and instructed to stop driving their vehicles until the inspection process is completed. Parts The inspection procedure is available and can be performed. Parts are not available at this time should they be needed. Once parts are available, certain customers will be informed via a second owner notification letter to have a final repair performed. Vehicles Affected Vehicle Model Year(s) 2006-2012 Vehicle Model GL-Class, ML-Class, R-Class Vehicle Populations Total Recall Population 278,173 Total Vehicles in Dealer Inventory 0 The vehicles will be flagged as “OPEN” and Work Instructions will be available in Star TekInfo. Customers are advised not to drive their vehicle until an inspection is performed. Based on the results, vehicles may continue to be driven if the inspection is passed, or must be grounded if the inspection is not passed. A follow-up campaign will be issued for any vehicle that requires a brake booster replacement. Until such time, a “Pending” campaign will be assigned to these vehicles to ensure vehicle status is reflected in the VIN look-up tools mentioned below. Additionally, given this notice, it is a violation of Federal Law for car rental companies to rent MY 06-12 GL-Class, ML-Class, and R-Class vehicles covered by this notification until the vehicle has been inspected and passed, or grounded until parts become available and the remedy performed. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis PUBLIC FAQs 1. What is the recall about? a. The recall campaign is related to the brake booster housing. Specifically, advanced corrosion may have formed on the housing, which could lead to a vacuum leak and impairment to brake effectiveness. 2. Can I continue to drive the car? a. Your safety is our highest priority. MBUSA advises customers to stop driving the vehicle until the first inspection is performed. Customers will be notified by first class mail to schedule an appointment to have the inspection performed by an authorized dealer. 3. Why are other models not included? a. Only ML- (MY2006 – 2011), GL- (MY2007 – 2012), and R- (MY2006 – 2012) Class vehicles are fitted with the affected brake booster utilizing a rubber sleeve. Other models are not fitted with this rubber sleeve. Affected vehicles have been identified within this recall. 4. Will the dealer provide a loaner vehicle? a. The dealer may offer to provide a loaner based on loaner vehicle availability. If available, the loaner will be provided free of charge. If no loaner vehicles are available, other solutions will be offered such as taxi/rideshare, public transportation cost reimbursement, and rental reimbursement. See the “Warranty Information” section below for additional information. 5. What types of repairs or replacements part(s) are needed? a. Affected vehicles will be inspected as a first step. After this inspection, the vehicle will be given 1 of 3 statuses. A. Inspected with no advanced corrosion: The rubber sleeve will be removed. The vehicle can be driven with no further action or customer follow-up required. B. Inspected with advanced corrosion found: A brake efficacy test will be performed. A passed test ensures the tested brake booster can continue to be used and the vehicle driven up to a maximum time limit of 2 years. The dealer will provide a “Certificate of Passed Initial Diagnostic Brake Test” detailing that the test has passed. A new notice will be provided to the owner at a later date to bring the vehicle to an authorized Mercedes-Benz dealership for further inspection and potential replacement of the brake booster. Next Steps/Notes Customer Notification Timeline Owner notification letters will be mailed on or before June 30, 2022. AOMS/SOMS AOMs – This recall may generate questions from your dealers. Please forward this notice to your dealers ASAP. Rental Fleet Partners Affected vehicles in your fleet should not be driven until the inspection has been performed and passed. Please contact your respective MBUSA fleet representative for further information and next steps. For repairs, please contact your preferred MBUSA dealer. While we regret any inconvenience this may cause, MBUSA is determined to maintain a high level of vehicle quality and customer satisfaction. Please refer all customer inquiries to the Customer Assistance Center at 1-888-548-8514. Please anticipate longer than usual wait times to reach an agent as is typical for any recall of large volume. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis PUBLIC C. Inspected with advanced corrosion and brake efficacy test does not pass: The vehicle will require the brake booster housing to be replaced when parts are available. Until then, the vehicle MUST NOT be driven. 6. If I am advised not to drive my vehicle will towing be offered? a. Customers will be notified by first class mail that the inspection can be performed at an authorized dealer. A tow can be completed by the local dealer or by calling 1-888-548-8514. Full details will be available in the owner notification letter. In some locations, a mobile inspection can be performed at a location of the customer’s convenience and towing will not be necessary. All towing will be provided free of charge to complete this recall. 7. Will the dealer repair the vehicle with the same part(s)? a. No. Based on the initial inspection, if a replacement of the brake booster is necessary, the part will be removed and replaced with a new part that does not utilize a rubber sleeve. 8. If advanced corrosion is found (status B, question 5), why must I wait two years – can’t the dealer just replace the brake booster housing now? a. Sufficient part quantities are not yet available to offer a complete repair at this time. Mercedes-Benz assures all customers that the tests performed through the inspection procedure confirm that the brake booster will remain functioning normally until such time an additional inspection is deemed necessary within a 2-year period. Mercedes-Benz is working diligently with its suppliers to procure replacement parts as soon as possible. 9. Will the replacement part(s) fail again? a. No. Provided the recall timelines are followed, the inspections and remedial measures performed by your Mercedes-Benz dealership assure you that the recall condition is remedied. 10. How long will the vehicle need to be in the workshop? a. For your convenience, an authorized Mercedes-Benz dealer will offer mobile inspection at your location of choice. Should you request the vehicle be towed to a workshop, the time for the recall will vary and is heavily dependent on towing availability and dealership schedules. The inspection itself will require 1 hour to complete. Your authorized Mercedes-Benz dealer can provide you with a better estimate of the overall time for this inspection. 11. Where will the vehicle be stored? a. Customers may store the vehicle at their residence and are encouraged to request their dealer perform a mobile inspection. Should the vehicle not pass the inspection, the vehicle may be continued to be stored at their residence or at their preferred dealer. 12. Are Owners responsible for expenses related to the recall? a. No. Parts and labor will be provided free of charge. Alternate mobility solutions will be offered via MBUSA and/or an authorized Mercedes-Benz dealership. If the customer exceeds the limits of what Mercedes-Benz offers, they may be responsible for the additional expenses. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis PUBLIC 13. I may have paid for repairs related to this recall. Will I receive reimbursement? a. Current and previous owners may be eligible to receive reimbursement if they have had a brake booster replacement due to the conditions specified in this recall. Requests for reimbursement may include parts, labor, fees and taxes. Reimbursement may be limited to the amount the repair would have cost if completed by an authorized Mercedes-Benz dealer. Details will be provided in the recall owner notification letter. 14. What happens if the dealer determines repairs aren’t necessary now but Owners experience concerns related to the recall in the future? Are Owners responsible for diagnostic fees/repair costs? a. Any future owner concerns will be evaluated on an individual basis. Extensive analyses were conducted by Mercedes-Benz AG. Based on these analyses, a test method was developed for the workshops which, among other aspects, ensures the functionality of the brake booster by usage of diagnostic-supported test routines. If the dealer determines based on the inspection that the brake booster does not need to be replaced at this time but the owner experiences recall-related concerns in the future, a re-inspection may be carried out within 2 years to ensure the functionality of the brake booster. Parts and labor associated with the recall are free of charge to the customer. 15. I received a letter but I no longer own the vehicle. How can I update my ownership information? a. Customers should be directed to the MBUSA recall website at https://www.mbusa.com/en/recall, enter their VIN, and update their contact information. 16. What is Mercedes-Benz going to do for Owners given this inconvenience? a. Mercedes-Benz is committed to the highest level of customer service and while we regret the inconvenience, the safety of our customers is paramount. Mobility solutions and/or reimbursement for mobility will be offered for the duration the customer’s vehicle is affected under this “stop drive” recall. See the “Warranty Information” section below for further information. 17. I lost faith in the vehicle and demand MBUSA provide a replacement. a. Such customer inquiries will be evaluated on a case by case basis. Direct the customer to 1-888-548-8514. 18. Is mobile repair offered for this recall? a. Yes, for your convenience, an authorized Mercedes-Benz dealer will offer mobile inspection at a location of your choice. 19. I read a media article that states I should stop driving my vehicle if I own one of the affected vehicles, what should I do? a. A VIN-based recall lookup tool on our MBUSA.com website offers a search feature that will indicate whether a vehicle has been subject to a safety recall. See www.mbusa.com/recall for more details. If your vehicle status is listed as “Recall Currently Pending” or “Open,” the vehicle MUST NOT be driven until the inspection process is performed. Further instructions will be provided based on the results of that inspection. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis PUBLIC 20. Can/should dealers wholesale/sell affected used car vehicles? a. No. MBUSA advises dealers not to sell used vehicles subject to this recall until the inspection is completed. 21. For cars currently at the dealers, should dealers inform their customers and ensure dealer staff do not drive the vehicle? a. For customers Yes, dealers should inform their customers that the vehicle is under a stop drive recall. The vehicle can be stored at the dealership, or towed to the customer’s residence free of charge. Please contact the CAC at 1-888-548-8514 to schedule a tow. If the customer needs alternative transportation, a mobility solution will be offered to you by the dealer (See FAQ 4). Reimbursements will be provided up to a maximum of $80 per day. b. For dealer staff Dealer staff must NOT drive the vehicle on public roads. Within the confines of the dealership, the vehicle can be driven up to 20 mph. To claim any expenses related to towing and/or storage, see the “Warranty Information” 22. I inspected the vehicle and found other brake components to be in need of repair. a. This recall relates to potential advanced corrosion on the brake booster housing. If other brake system component(s) are in need of repair/replacement such that they would impair or hinder performing the inspection for the recall condition, the parts/system must be rectified prior so the initial inspection may be completed. These parts and labor are not covered under this recall. 23. The customer wishes to keep driving the vehicle and refuses the repair. How do I handle this situation? a. Customer safety is our top priority at Mercedes-Benz. If the customer insists on driving the vehicle despite the warnings associated with a “stop drive” recall, the following language MUST be added to the Repair Order and initialed by the customer: ______ (Initial Here) ASSUMPTION OF RISK FOR REMOVAL OF VEHICLE. I understand that my vehicle is subject to a “Stop Drive” recall and that continuing to drive my vehicle involves inherent risks and dangers of accidents, property loss or damage, and serious personal injury to me and others, as well as potential financial losses. I have carefully considered the extent of the risks involved, and I voluntarily and freely choose to assume these risks. Campaign No. 2022050015, May 2022 TO: ALL MERCEDES-BENZ CENTERS SUBJECT: Model GL-Class, ML-Class, and R-Class (X164, W164 and 251 platform) Model Year 2006-2012 Inspect Brake Booster – without Pedal Rework Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2006-2012 ML, GL (W164/X164 platform) and R-Class (251 platform) vehicles, the function of the brake booster might be affected due to advanced corrosion in the joint area of its housing. After extended time in the field and in conjunction with prolonged water exposure, this corrosion might lead to a vacuum leak at the brake booster. If this were to occur, the brake force support might be reduced, leading to an increase in the brake pedal forces required to decelerate the vehicle, and/or increased stopping distances. Additionally, in rare cases of very severe corrosion, it might be possible for a particularly strong or hard brake application to cause mechanical damage in the brake booster, whereby the connection between brake pedal and brake system would fail. In such a very rare case, it would not be possible to decelerate the vehicle via the brake pedal. The risk of a crash or injury would be increased. The function of the parking brake is not affected by this issue. Before the issue occurs, the driver might notice a change in the brake pedal feel and/or hissing/airflow noises when applying the brake pedal. MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will remove the rubber sleeve from the brake booster housing, check the brake booster on the affected vehicles and, depending on the result of this inspection, replace as necessary. Affected customers will be mailed a recall owner notification letter and instructed to stop driving their vehicles until the inspection process is completed. Prior to performing this Campaign:  VMI must always be checked before performing campaigns to verify that the campaign is required on a specific vehicle. Always check for any other open campaigns, and perform accordingly.  Please review the entire Campaign bulletin and follow the repair procedure exactly as described. Approximately 278,173 vehicles are affected. Order No. P-RC-2022050015 This bulletin has been created and maintained in accordance with MBUSA-SLP S423QH001, Document and Data Control, and MBUSA-SLP S424HH001, Control of Quality Record 2 P-RC-2022050015 Inspect Brake Booster Existing problems that would hinder the inspection procedure or any subsequent repairs must first be rectified. Any associated costs are not claimable and should not be included with the campaign claim.  Ensure use of XENTRY Diagnosis version 03/2022 or higher.  Before beginning with the work procedure, install the current versions of all add-ons as well as add-on 22889 and 23043 on XENTRY Diagnosis.  Make sure to follow the operation steps exactly as described in XENTRY Diagnosis. Check/test procedure A The following work must be invoiced using damage code (SSL) “42 900 05”. 1. Open the hood and check the water drains (marking, figure 1) for correct installation and ability to drain. Clean and correctly install water drains if necessary. Figure 1 3 P-RC-2022050015 2. Remove the rubber sleeve wrapped around the brake booster (A, figure 2) with a suitable tool (hook and side cutting pliers). If the rubber sleeve is not present, please proceed to check/test procedure A1. The rubber sleeve should be separated above the barcode label on the brake booster as seen in (A, figure 2 and B, figure 4.1). Figure 2 3. Take a photo of the rubber sleeve with the VIN label of the B-pillar (A, figures 3 and 4) and store to a local HDD/computer storage location with the vehicle service file and attach it to the warranty claim in EVA. These pictures serve as documentation of the current condition of the brake booster. Figure 3 Figure 4 Figure 4.1 4 P-RC-2022050015 4. Check corrosion of the brake booster using the removed rubber sleeve Figure 2(A). Use figures 5, 6 and 7 to assess corrosion. Brake booster OK: Multiple point-shaped corrosion marks (figure 5) are permissible. A maximum of one point-shaped corrosion mark with a diameter greater than 15 mm (figures 6 and 7) is permitted. Figure 5 OK Figure 6 Ok Figure 7 OK Brake booster not OK: Widespread corrosion marks spanning the rubber sleeve are not permissible. Corrosion marks of multiple points with a diameter greater than 15 mm are not permissible. a. Corrosion measurements Exceeds thresholds-NOK: Carry out check/test procedure B – XENTRY/DAS. b. Corrosion measurements Does not exceed threshold-OK (figure 5, 6 or 7): End measure. (Certificate of Passed Initial Diagnostic Brake Test not required). If the measure is ended, do not re-install a new rubber sleeve. Apply marking with white touch-up paint pen (1, figure 8) to the brake booster checked. DO NOT treat the brake booster with an anti-corrosion agent! The findings from the check/test procedure must be documented on the Repair Order and included in the dealer text in the warranty claim in EVA. 5 P-RC-2022050015 Check/test procedure A1 If the rubber sleeve on the brake booster is not present, please take a photo of the barcode label (B, figure 4.1) on the brake booster and store to a local HDD/computer storage location with the vehicle service file and attach to the warranty claim in EVA. Then continue with check/test procedure A1. Only if the rubber sleeve of the brake booster is missing. 1. Check sequence of numbers on the barcode label (C, figure 4.2). a. IF the sequence of numbers is less than “15126” starting from the 13th number: Perform check/test procedure B – XENTRY/DAS. b. If the sequence of numbers is greater than or equal to “15126” starting from the 13th number: End the measure. Figure 4.2 Check/test procedure B – XENTRY/DAS The following work must be invoiced using damage code (SSL) “42 900 05”. Add-on 22889 and 23043 must be installed. Without add-on 22889 and 23043, check/test procedure B cannot be performed. 1. Connect XENTRY Diagnosis and create an initial quick test. XENTRY must be connected via the cable with VCI/SD Connect. The test may only be performed once and in full without interruption. Do not perform any unnecessary braking procedures (maximum full-stop braking) before the test. 6 P-RC-2022050015 2. Check brake booster with XENTRY/DAS. To do this, select the menu item “Main groups – Control units – Chassis – ESP-Electronic Stability Program – Complete list of guided tests – Braking power”. Then follow the user guidance in XENTRY/DAS Diagnosis. Print out the brake force “event log” after the test and store to a local HDD/computer storage location. c. XENTRY/DAS check not passed: Close campaign with claim. See Launch NCU FAQ for mobility solution options to offer to the customer until parts are available and the part can be exchanged. Do not provide customer Certificate of Passed Initial Diagnostic Brake Test. d. XENTRY/DAS check passed: Continue. 3. Disconnect XENTRY Diagnosis. 4. Apply marking with white touch-up paint pen (1, figure 8) to the inspected brake booster. DO NOT treat the brake booster with an anti-corrosion agent/paint. 5. Print out customer certificate titled “Certificate of Passed Initial Diagnostic Brake Test”, located at the end of this document, fill out, sign, and hand over to the customer. Figure 8 7 P-RC-2022050015 Primary Parts Information Qty. Part Name Part Number 0.1 Rubber Sleeve SLEEVE Note: The following allowable labor operation should be used when submitting a warranty claim for this repair: Warranty Information Note on the claim submission: Please ensure you claim 0.1 quantity for part number = SLEEVE (uppercase) for all rubber sleeve removal labor claims. This will result in QEC part return request in the NetStar Parts Disposition application. Claims in which the quantity exceeds 0.1 will be stopped in error in EVA until corrected. Be aware that a claim stopped in error will not close the campaign and will not allow payment to the dealer so please correct these errors immediately. Note on the return shipment: • For each vehicle processed, print out the part return barcode from the NetStar Parts Disposition application • Pack the rubber sleeve with the part return barcode in a plastic bag and seal securely with barcode visible from the outside (see figure 1).  For Dedicated Delivery Service (DDS) dealers, please forward parts in bulk (10-20 pcs per Load List unless time does not permit) to your facing PDC using the normal DDS warranty parts return process. Please ensure you include a Dealer Return slip marked for Warranty.  For non-DDS dealers, please forward parts in bulk (10-20 pcs per Load List unless time does not permit) directly to the QEC using the normal FedEx Ground warranty parts return process. All rubber sleeves should be individually tagged with a warranty parts return barcode and bagged. Recommend that bulk sleeve shipments are placed into a single overpack bag and then packaged in a small box with a copy of the Load List affixed to the box. Failure to return the rubber sleeve within the pre-defined time period will result in a non-return part debit. If there are any questions pertaining to parts return, please submit a WSG Parts Disposition case online 8 P-RC-2022050015 Damage Code Operation Number Description Labor Time (hrs.) 42 900 05 02-0053 Check/test procedure A Check brake unit Includes: Remove rubber sleeve from brake unit and document test result This operation number can be used even if no rubber sleeve is present on the brake unit 0.2 02-0057 Pack up the rubber sleeve for the brake unit and dispatch 0.1 02-0088 Check/test procedure A1 Check barcode on brake unit Only if no rubber sleeve is present on the brake unit 0.1 02-0054* Scope of testing B Check brake unit using XENTRY Diagnosis Findings: OK Includes: Connect/disconnect XENTRY 0.4 02-0058* Scope of testing B Check brake unit using XENTRY Diagnosis Findings: not OK Includes: Connect/disconnect XENTRY 0.4 02-0060 Scope of testing B Perform quick test (with XENTRY/DAS connected) 0.1 * Invoice only operation item 02-0054 or 02-0058. Invoicing both operation items is not permissible. When using operation item 02-0054, the Certificate of Passed Initial Diagnostic Brake Test must be handed over to the customer which is located at the end of this document. Note: Always check ASRA for the current OP-Code times. Labor times are subject to change and updates may not be reflected in this document. 9 P-RC-2022050015 Warranty Information For vehicles impacted by the stop drive, MBUSA will allow for reimbursement of several associated ancillary costs as outlined below. These reimbursements are solely to support the implementation of this recall and to reduce the risk of customer inconveniences.  Damage code 99803 01 – Mobile inspection incentive o $150 per vehicle o Claimed separately and on top of the recall inspection  Damage code 99039 01 – Towing o Up to $125 per tow if arranged by customer or dealer outside of normal process o Invoice must be attached to claim o Please use normal CAC tow process whenever possible to alleviate reimbursement  Damage code 99046 01 – Vehicle storage o $15 per vehicle, per day for dealership onsite storage o Up to $56.25 per vehicle, per day for offsite storage o Invoice must be attached to claim  Damage code 99047 01 – Active vehicle care during vehicle storage o $300 per vehicle, one-time, for the entire period (i.e. wash, maintain battery, move to avoid flat spots and brake corrosion, etc.)  Damage code 99304 01 – Mobility solutions o Up to $2,400 per month for rental vehicle (up to $80/day), loaner ($80/day flat fee), taxi / rideshare services or use of public transportation o Dealers are encouraged to use loaner vehicles for customer requests. See sales NCU on changes to the CVP program and alternate mobility options. o Rental agreement, loaner agreement and/or invoice(s) must be attached to claim o Claims may be submitted on a monthly basis / multiple submissions allowed if needed This support is limited to the end of September 2022 10 P-RC-2022050015 Certificate of Passed Initial Diagnostic Brake Test Recall campaign – Inspect Brake Booster Vehicle identification number: Dear Valued Customer: Your vehicle’s brake booster has been inspected by your authorized Mercedes-Benz service facility for corrosion and functionality under MBUSA Recall Campaign number 2022050015 or 2022050014 bearing NHTSA ID# 22V315. The results of this initial inspection confirm that it is not immediately necessary to replace the brake booster in your vehicle. Therefore, your vehicle is no longer subject to the Stop Drive and may continue to be driven. A mobility solution is no longer necessary. Important! The brake booster may be subject to an additional inspection or a replacement brake booster, whichever comes first, within a period of 2 years from the date of the initial inspection. Mercedes-Benz USA will contact you again by mail to schedule the additional inspection at the appropriate time. If you sell your vehicle in the meantime, you must provide this document to the buyer. The additional inspection of the brake booster is very important to your vehicle’s safety. Therefore, it will be checked whether this has been carried out no later than 2 years after the first inspection. If this additional inspection was not carried out on your vehicle in time, you should stop operating the vehicle. If the described additional inspection is not completed, advanced corrosion in the joint area of the housing could potentially impair the function of the brake booster. This might increase the required brake pedal force and possibly extend the stopping distance. In very rare cases, it cannot be completely ruled out that mechanical damage to the brake booster might occur, whereby the connection between brake pedal and brake system would fail. In that condition, the vehicle would no longer be decelerated via the service brake which would increase the risk of a crash or injury. Date of inspection: Signature of Mercedes-Benz Dealer

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202205001 4 ‘ ‘ ” June, 2022 l his notice applies to your vehicle, VIN: lns1Pect !Brake Booster NIH’ii’SA Recall m: 22V315 MBUISA ID: 2022050014 & 2022050015 S1’0P DRIV~ ORDER! STOP DRIVE – Your vehicle can be towed to an authorized dealer and a mobility solution provided or a mobile repair may be possible • An Inspection procedure is available • Schedule an appointment with your authorized Mercedes-Benz dealership as soon as possible. Dear Mercedes-Benz Owner: • This repair will be provided FREE of charge. This notice is being sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has decided that a defect which relates to motor vehicle safety exists in certain Model Year (“MY”) 2006-20 11 ML-Class and MY2006-20 12 GL-Class and R-Class vehicles. Our records indicate that your vehicle is included in the affected population of vehicles. ~ What is the issue? Moisture may accumulate and cause corrosion in the brake booster housing unit, which can result in reduced brake performance. In some cases of severe corrosion, a particularly strong or hard braking application may cause mechanica l damage in the brake booster, which can result in brake failure. In this case, it would not be possible to decelerate the vehicle via the brake pedal. Reduced brake performance or brake failure can increase the risk of a crash or injury. Ow1111ers are advised 1111ot to drove tlheor vehicles unto! tlhe inspection is performed!. What will your Mercede~Benz Dealership do? An authorized Mercedes-Benz dealer will inspect the brake booster housing. While the repair time may be less than 1 hour, your dealer can provide you with a better estimate of the overall time for this inspection. After the inspection, your vehicle will fa ll into one of three categories: Category 1: Vehicles will have an aesthetic rubber sleeve removed to eliminate further risk of corrosion. Vehicles that do not show advanced corrosion may continue to be driven with no further action. Category 2: If, after the rubber sleeve is removed advanced corrosion is present, an additional diagnostic test will be performed to ensure the functionality of the brake booster. If the vehicle passes inspection, it may be driven but must return for an additional test and repair within two years. A certificate will be provided by the performing dealership. When the brake booster parts are available or the vehicle needs to be re-tested, an additional reminder owner notification letter will be mailed. Category 3: Vehicles that do not pass the additional diagnostic test will require a brake booster replacement and the stop drive will remain in effect. At this time, parts are not available for an immediate replacement. When parts are available, an additional owner notification letter will be sent. In the event your vehicle does not pass the diagnostic test, the vehicle may be stored at your residence or be towed to a dealership storage location. If the inspection was performed via mobile service and you choose to have the vehicle towed to a storage location, please contact the dealership to initiate the tow. If the dealership is unable to assist, please call 1-888-548-8514 to arrange a tow. In the event a brake booster repair is necessary, your authorized Mercedes-Benz dealer will help coordinate an individualized mobility solution since replacement parts are not available at this time. This service will be provided free of charge. Hlow do I schedule an inspection? MBUSA strongly encourages you to schedule a mobile inspection with your local dealer. In the event a mobile inspection cannot be performed, a tow to your nearest authorized Mercedes-Benz dealership will be provided free of charge. To locate authorized dealers see www.MBUSA.com/recall. Please mention you are scheduling an appointment to inspect the brake booster housing under Recall Campaign #20220500 14 or 20220500 15. You may be asked for your 17-digit Vehicle Identification Number (VIN) which for your convenience is located above your name at the top of this letter. I need altemate transportation, what are my options? When available, a dealer may be able to provide a loaner vehicle. If no loaner vehicles are available, other solutions may be offered such as taxijrideshare, public transportation cost reimbursement, and/or rental reimbursement. Please discuss with your dealer the conditions and availability of each option. Will this affect other brake system components? This recall relates to potential advanced corrosion on the brake booster housing. If other brake system component(s) are in need of repair /replacement such that they would impair or hinder inspecting the brake booster housing, the repair/ replacement must be completed first to allow the brake booster housing to be inspected. These parts and labor costs are not covered under this recall and are the responsibility of the owner. I no longer feel safe In my car. What if I no longer want to drive this vehicle? We ensure you that the inspection program has been thoroughly vetted. If you still have concerns please contact our customer service center at 1-888-54~8514. Steps to take. • Find your nearest authorized Mercedes-Benz dealership at mbusa.com/ recall to schedule your recall inspection. • Please mention you are scheduling an appointment for the Mercedes-Benz Brake Booster Recall Campaign 2022050014 or 2022050015. • You may be asked for your VIN, which for your convenience is located at the top of this letter. • Based on the outcome of your vehicle’s inspection, further steps will be provided as outlined above. What if I no longer own or drive the vehicle? In the event you no longer own or drive this vehicle, please visit mbusa.com/recalls to update your information by submitting your VIN using our VIN recall lookup tool and filling out the “no longer own” section on the website. If possible, please provide any contact information of the current owner /driver so we can contact them. Additional Information for Owners: A VIN-based recall lookup tool is available at mbusa.com/recalls, which can be used to check whether a vehicle has been subject to a safety recall, or had the remedy performed. Should you have any questions or encounter any difficulty regarding this Recall Campaign, please contact an authorized Mercedes-Benz dealership. If th is is a leased vehicle and the lessor and registered owner receive this notice, please forward this information by fi rst class mail to the lessee within 10 business days to comply with Federal Regulations. Should an authorized Mercedes-Benz dealership be unable to address your concerns please contact us at We are always happy to hear from you. If an authorized Mercedes-Benz dealer for any reason is unable to remedy the situation without charge, or within a reasonable amount of time, Pursuant to law 49 U.S.C. Chapter 301, you may submit a complaint to the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, S.E., Washington, D.C. 20590 or call the toll-free Auto Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153); or go to https://www.safercar.gov. R R p d R If you have already paid to have this recall condition corrected you may be eligible to receive reimbursement. Requests for reimbursement may include parts, labor, fees and taxes. Reimbursement may be limited to the amount the repair would have cost if completed by an authorized Mercedes-Benz dealer. The following documentation must be presented to your dealer for reimbursement. Original or clear copy of all receipts, invoices and/or repair orders that show: • The name and address of the person who paid for the repair. • The Vehicle Identification Number (VIN) of the vehicle that was repaired. • What problem occurred, what repair was done, when it was done and who repaired it. • The total cost of the repair expense that is being claimed. • Proof of payment of repair (copy of front and back of cancelled check, or copy of credit card receipt). • Reimbursement will be made by check from your dealer. Please speak with your dealer concerning this matter. Thank you for your cooperation. We apologize for any inconvenience this may have caused and look forward to taking care of this important safety recall immediately. Sincerely, Mercedes-Benz USA

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Recall Campaign Update Notification
Replace Brake Booster

DATE: September 2, 2022

Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis Public IMPORTANT RECALL CAMPAIGN INFORMATION Please see the attached documents related to the campaign listed above. Please note that all customer inquiries should be directed to the Customer Assistance Center at 1-888-548-8514. Sincerely, Gregory Gunther Department Manager, Vehicle Compliance & Analysis TO: Mercedes-Benz Dealer Principals, General Managers, Sales Managers, Service Managers, Parts Managers FROM: Gregory Gunther, Department Manager, Vehicle Compliance and Analysis, Engineering Services RE: Recall Campaign Update Notification Replace Brake Booster MY06-12 GL-Class, ML-Class, R-Class (X164, W164, R251 platform) DATE: September 2, 2022 Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis Public Recall Campaign Update Notification September 2, 2022 Campaign No. : NHTSA ID Campaign Desc. : Replace Brake Booster TBD 22V315 TBD This is to notify you of an update to the Brake Booster Recall Campaign on 292,287 Model Year (“MY”) 2006-2012 GL-Class, ML-Class, and R-Class (X164, W164 and R251 platform) vehicles. The recall campaigns will be visible on the www.safercar.gov website and may generate questions from customers. Affected VINs will be flagged in VMI as “PENDING” on September 2, 2022. Background Issue All vehicles which had the Brake Booster inspection performed and require a follow-up repair per campaigns (2022050014 and 2022050015) will be converted to 1 of 4 “Pending” recall statuses based on their inspection results. Original Campaign New Pending Campaign # Category 2022050014 Pedal re-work 2022080014 OR 2– Driven for up to 2 years 2022080013 3 – Stop Drive 2022050015 No pedal re-work 2022080012 OR 2 – Driven for up to 2 years 2022080011 3 – Stop Drive What We’re Doing An authorized Mercedes-Benz dealer will replace the brake booster assembly and, if applicable, re-work the brake pedal assembly. All vehicles resulting in inspection category 3 remain under “stop drive” restrictions. Parts Replacement parts are not available at this time. Vehicles Affected Vehicle Model Year(s) 2006-2012 Vehicle Model GL-Class, ML-Class, R-Class Vehicle Populations Total Recall Population 292,287 Total Vehicles in Dealer Inventory 0 Once parts are available, the vehicles will be flagged as “OPEN” and Work Instructions will be available in Star TekInfo. Vehicles can then be repaired and will no longer be on stop drive (Category 3) or temporary stop drive release (Category 2). Loaner and demonstrator vehicles may continue to be driven, but must not be retailed until repaired. As a matter of normal service process, please check for other repair measures which might be applicable to the vehicle(s). Additionally, given this notice, it is a violation of Federal Law for car rental companies to rent MY06-12 GL-Class, ML-Class, and R-Class vehicles covered by this notification until the vehicle has been repaired. Next Steps/Notes Customer Notification Timeline Owner notifications will be mailed as soon as parts are available. AOMS/SOMS AOMs – This recall may generate questions from your dealers. Please forward this notice to your dealers ASAP. Rental Fleet Partners This recall may affect vehicles in your fleet. Please contact your respective MBUSA fleet representative for further information and next steps. For repairs, please contact your preferred MBUSA dealer. While we regret any inconvenience this may cause, MBUSA is determined to maintain a high level of vehicle quality and customer satisfaction. Please refer all customer inquiries to the Customer Assistance Center at 1-888-548-8514. MBUSA apologizes, but please anticipate longer than usual wait times to reach an agent as is typical for any recall of large volume. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis Public FAQs 1. Why is there another “Pending” recall campaign for the “Brake Booster”? a. At the time of initial campaign launch, parts were not available. Instead of waiting for parts to launch the entire campaign, the inspection portion of the campaign was released. Vehicles that did not pass the visual inspection have been assigned new campaign numbers to receive a subsequent repair. 2. What types of repairs or replacements part(s) are needed? i. Category 1: Visual rubber sleeve inspection. Vehicles that passed the initial visual inspection will not receive a new “Pending” campaign and no subsequent repair is necessary. ii. Category 2: Inspected with advanced corrosion found. A brake efficacy test was performed and passed. A passed test ensures the tested brake booster can continue to be used and the vehicle driven up to a maximum of 2 years before a subsequent repair is required. iii. Category 3: Inspected with advanced corrosion and brake efficacy test did not pass. The vehicle will require the brake booster assembly to be replaced when parts are available. Until then, the vehicle MUST NOT be driven. 3. Are parts available to start replacing brake booster housings? a. No. Once parts are available, the field will be notified with a Launch NCU and Work Instructions. The “Pending” campaign will also be listed as “Open”.

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Recall Campaign Launch Notification – STOP DRIVE
Inspect Brake Booster – Updated FAQs

DATE: May 14, 2022

Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis PUBLIC IMPORTANT RECALL CAMPAIGN INFORMATION UPDATE Please see the attached documents related to the campaign listed above. STOP DRIVE NOTIFICATION! Please note that all customer inquiries should be directed to the Customer Assistance Center at 1-888-548-8514. Sincerely, Gregory Gunther Department Manager, Vehicle Compliance & Analysis TO: Mercedes-Benz Dealer Principals, General Managers, Sales Managers, Service Managers, Parts Managers FROM: Gregory Gunther, Department Manager, Vehicle Compliance and Analysis, Engineering Services RE: Recall Campaign Launch Notification – STOP DRIVE Inspect Brake Booster – Updated FAQs MY06-12 GL-Class, ML-Class, R-Class (X164, W164, R251 platform) DATE: May 14, 2022 Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis PUBLIC Recall Campaign Initial Notification Update May 14, 2022 Campaign No. : NHTSA ID Campaign Desc. : Inspect Brake Booster TBD 22V315 22P2197512 22P2197514 This is to notify you of the Recall Campaign Launch to inspect the brake booster on 292,287 Model Year (“MY”) 2006-2012 GL-Class, ML-Class, and R-Class (X164, W164 and R251 platform) vehicles. The recall campaign will be visible on the www.safercar.gov website and may generate questions from customers. Affected VINs will be flagged in VMI as “PENDING” on May 12, 2022. Background Issue Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2006-2012 ML, GL (W164/X164 platform) and R-Class (R251 platform) vehicles, the function of the brake booster might be affected due to advanced corrosion in the joint area of its housing. After extended time in the field and in conjunction with prolonged water exposure, this corrosion might lead to a vacuum leak at the brake booster. If this were to occur, the brake force support might be reduced, leading to an increase in the brake pedal forces required to decelerate the vehicle, and/or increased stopping distances are possible. Additionally, in rare cases of very severe corrosion, it might be possible for a particularly strong or hard brake application to cause mechanical damage in the brake booster, whereby the connection between brake pedal and brake system would fail. In such a very rare case, it would not be possible to decelerate the vehicle via the brake pedal. The risk of a crash or injury would be increased. The function of the parking brake is not affected by this issue. Before the issue occurs, the driver might notice a change in the brake pedal feel and/or hissing/airflow noises when applying the brake pedal. What We’re Doing MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will remove the rubber sleeve from the brake booster housing, check the brake booster on the affected vehicles and, depending on the result of this inspection, replace as necessary. Until the inspection process is completed, affected customers will be instructed by the MBUSA recall owner notification letter to stop driving their vehicles at the time of recall launch. Parts The Inspection procedure is not available at this time. Vehicles Affected Vehicle Model Year(s) 2006-2012 Vehicle Model GL-Class, ML-Class, R-Class Vehicle Populations Total Recall Population 292,287 Total Vehicles in Dealer Inventory 0 Once the inspection process is available, the vehicles will be flagged as “OPEN” and Work Instructions will be available in Star TekInfo. Vehicles can then be inspected, and based on the results, continue to be driven (Inspection passed) or grounded (Inspection not passed) until such time parts are available. A follow-up campaign will be issued for any vehicle, which requires brake booster replacement. Additionally, given this notice, it is a violation of Federal Law for car rental companies to rent MY06-12 GL-Class, ML-Class, and R-Class vehicles covered by this notification until the vehicle has been repaired. Next Steps/Notes Customer Notification Timeline Owner notifications will be mailed on or before May 31, 2022. AOMS/SOMS AOMs – This recall may generate questions from your dealers. Please forward this notice to your dealers ASAP. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Com pany One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis PUBLIC FAQs 1. What is the recall about? a. The recall campaign is related to the brake booster housing. Specifically, advanced corrosion may have formed on the housing, which could lead to a vacuum leak and impairment to brake effectiveness. 2. Why are other models not included? a. Only ML (MY2006 – 2011), GL (MY2007 – 2012), and R (MY2006 – 2012) class vehicles are fitted with the affected brake booster utilizing a rubber sleeve, which can lead to advanced corrosion on the brake booster. Affected Vehicles have been identified within this recall. 3. Will owners receive complimentary (free) towing to the dealer? a. Customers are instructed not to drive their vehicle. Vehicle transport and mobility solutions will be offered at the time of recall launch. Further information to follow. 4. Will the dealer provide a loaner? a. Where available, a mobile inspection solution and alternate transportation will be provided for customers at the time of recall launch, which may include a loaner or rental vehicle. This service will be provided free of charge. 5. What types of repairs or replacements part(s) are needed? a. At this time the recall has not been launched. When the recall is launched and instructions have been provided to authorized Mercedes-Benz dealerships, affected vehicles will be inspected as a first step. After this inspection, the vehicle will be given 1 of 3 statuses. i. Inspected with no corrosion: The rubber sleeve will be removed. The vehicle can be driven with no further action or follow-up required. ii. Inspected with advanced corrosion found: A brake efficacy test will be performed. A passed test ensures the tested brake booster can continue to be used and the vehicle driven up to a maximum of 2 years. A new notice will be provided at a later date to bring the vehicle to an authorized Mercedes-Benz dealership for further inspection and potential replacement of the brake booster. iii. Inspected with advanced corrosion and brake efficacy test does not pass: The vehicle will require the brake booster housing to be replaced when parts are available. Until then, the vehicle MUST NOT be driven. Rental Fleet Partners This recall may affect vehicles in your fleet. Please contact your respective MBUSA fleet representative for further information and next steps. For repairs, please contact your preferred MBUSA dealer. While we regret any inconvenience this may cause, MBUSA is determined to maintain a high level of vehicle quality and customer satisfaction. Please refer all customer inquiries to the Customer Assistance Center at 1-888-548-8514. MBUSA apologizes, but please anticipate longer than usual wait times to reach an agent as is typical for any recall of large volume. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Com pany One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis PUBLIC 6. How long can Owners expect to be without their vehicle? a. The recall has not been launched. When launched, times will vary based on dealer appointment availability, inspection results, and replacement part availability. Mercedes-Benz apologizes for any inconvenience this may cause but know your safety is our top priority. 7. Where will the vehicle be stored? a. At this time, the vehicle should be stored at the owner’s residence until the recall has been launched. 8. Why can’t my vehicle be towed to dealership now? a. At this time, we are unable to tow to dealerships because the inspection process is not yet available. Once available, customers will be notified by first class mail to schedule an appointment to have the inspection performed at an authorized dealer or have a mobile inspection performed at a location of their convenience. At this time, towing to the dealerships will be offered. 9. Are Owners responsible for expenses related to the recall? a. No. Parts and labor will be provided free of charge. Alternate mobility solutions will be offered via MBUSA and/or an authorized Mercedes-Benz dealership starting at the time of recall launch. 10. I may have paid for repairs related to this recall. Will I receive reimbursement? a. The customer may be eligible to receive reimbursement. Requests for reimbursement may include parts, labor, fees and taxes. Reimbursement may be limited to the amount the repair would have cost if completed by an authorized Mercedes-Benz dealer. Details will be provided in the recall owner notification letter. If you no longer own the vehicle, please call back in at the time of recall launch by watching the MBUSA website (www.mbusa.com/en/recall) VIN lookup tool under “My Vehicle Status”. 11. Can I continue to drive the car? a. MBUSA advises customers to stop driving the vehicle until the first inspection is performed. At this time, the inspection process is not yet available. Once available, customers will be notified by first class mail to schedule an appointment to have the inspection performed at an authorized dealer or have a mobile inspection performed at a location of their convenience. At that time alternate mobility solutions will be offered. b. In the meantime, if you need alternative transportation, please save your receipts. Reimbursements will be provided up to a maximum of $80 per day. Additional information on reimbursements will be included in the customer letter. If vehicle is at a location other than your home, complimentary towing can be offered back to your home. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Com pany One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis PUBLIC 12. What is Mercedes-Benz going to do for Owners given this inconvenience? a. Mercedes-Benz is committed to the highest level of customer service and while we regret the inconvenience, the safety of our customers and the quality and integrity of their Mercedes-Benz vehicles is paramount. Mobility solutions will be offered for the duration the customer’s vehicle is affected under this “stop drive” recall at the time of recall launch. 13. I lost faith in the vehicle and demand MBUSA provide a replacement. a. Such customer inquiries will be evaluated on a case by case basis. 14. I read a media article that states I should stop driving my vehicle if I own one of the affected vehicles, what should I do? a. A VIN-based recall lookup tool on our MBUSA.com website offers a search feature that will indicate whether a vehicle has been subject to a safety recall. See www.mbusa.com/recall for more details. If your vehicle status is listed as “Recall Currently Pending” or “Open” once the recall is launched, the vehicle MUST NOT be driven until the inspection process is performed. 15. I just heard in the news that my vehicle might be on a stop drive. How do I find out if my vehicle is part of the recall? What do I do next? a. A VIN-based recall lookup tool on our MBUSA.com website offers a search feature that will indicate whether a vehicle has been subject to a safety recall. If your vehicle is included in the population, it must not be driven until the first inspection is performed. As of today, the recall inspection is not available to be performed. Mobility solutions will be offered at the time of recall launch for the duration the vehicle is under “stop drive”. 16. Can/should dealers wholesale/sell affected used car vehicles? a. No. MBUSA advises dealers not to sell used vehicles under this recall while a “stop drive” is in place until the vehicle is remedied. 17. For cars currently at the dealers, should dealers inform their customers and ensure dealer staff do not drive the vehicle? a. For customers Yes, dealers should inform their customers that the vehicle is under a stop drive recall. The vehicle can be stored at the dealership, or towed to the customer’s residence free of charge. Please contact the CAC at (1 (888) 548-8514) to schedule a tow. If the customer needs alternative transportation, please have them keep their receipts. Reimbursements will be provided up to a maximum of $80 per day and additional mobility solutions will be available at launch. b. For dealer staff Dealer staff must NOT drive the vehicle on public roads. Within the confines of the dealership, the vehicle can be driven up to 25 mph. At time of inspection launch, instructions will be provided to claim for any expenses related to towing and/or storage. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Com pany One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis PUBLIC

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Updated Recall Campaign Launch Notification – STOP DRIVE
Inspect Brake Booster with Pedal Rework

UPDATE: September 23, 2022

Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis IMPORTANT RECALL CAMPAIGN UPDATE STOP DRIVE NOTIFICATION! Please see the attached documents related to the campaign listed above, which include new FAQs. Additionally, customer reminder re-notification letters were mailed August 31, 2022. Topic Page Launch NCU 2 Frequently Asked Questions (FAQ) a. What is this Recall b. Mobility c. Storage d. Reimbursement e. Miscellaneous 3 Work Instructions 8 Warranty Information & Parts Return Instructions 16 Certificate of Passed Initial Diagnostic Brake Test 18 Please note that all customer inquiries should be directed to the Customer Assistance Center at 1-888-548-8514. Sincerely, Gregory Gunther Department Manager, Vehicle Compliance & Analysis TO: Mercedes-Benz Dealer Principals, General Managers, Sales Managers, Service Managers, Parts Managers FROM: Gregory Gunther, Department Manager, Vehicle Compliance and Analysis, Engineering Services RE: Updated Recall Campaign Launch Notification – STOP DRIVE Inspect Brake Booster with Pedal Rework MY07-08 GL-Class, ML-Class, R-Class (X164, W164, 251 platform) UPDATE: September 23, 2022 Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis Recall Campaign Launch Notification September 23, 2022 Campaign No. : NHTSA ID Campaign Desc. : Inspect Brake Booster With Pedal Rework 2022050014 22V315 22P4290006 This is to notify you of an update to the Recall Campaign Launch to inspect the brake booster on 14,123 Model Year (“MY”) 2007-2008 GL-Class, ML-Class, and R-Class (X164, W164 and 251 platform) vehicles. The recall campaign will be visible on the www.safercar.gov website and may generate questions from customers. Affected VINs were flagged in VMI as “OPEN” on May 28, 2022. Background Issue Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2007-2008 ML-Class, GL-Class (W164/X164 platform) and R-Class (251 platform) vehicles, the function of the brake booster might be affected due to advanced corrosion in the joint area of its housing. After extended time in the field and in conjunction with prolonged water exposure, this corrosion might lead to a vacuum leak at the brake booster. If this were to occur, the brake force support might be reduced, leading to an increase in the brake pedal forces required to decelerate the vehicle, and/or increased stopping distances. Additionally, in rare cases of very severe corrosion, it might be possible for a particularly strong or hard brake application to cause mechanical damage in the brake booster, whereby the connection between brake pedal and brake system would fail. In such a very rare case, it would not be possible to decelerate the vehicle via the brake pedal. The risk of a crash or injury would be increased. The function of the parking brake is not affected by this issue. Before the issue occurs, the driver might notice a change in the brake pedal feel and/or hissing/airflow noises when applying the brake pedal. What We’re Doing MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will remove the rubber sleeve from the brake booster housing, check the brake booster on the affected vehicles and, depending on the result of this inspection, replace as necessary. Affected customers will be mailed a recall owner notification letter and instructed to stop driving their vehicles until the inspection process is completed. Parts The inspection procedure is available and can be performed. Parts are not available at this time should they be needed. Once parts are available, certain customers will be informed via a second owner notification letter to have a final repair performed. Vehicles Affected Vehicle Model Year(s) 2007-2008 Vehicle Model GL-Class, ML-Class, R-Class Vehicle Populations Total Recall Population 14,123 Total Vehicles in Dealer Inventory 0 The vehicles will be flagged as “OPEN” and Work Instructions will be available in Star TekInfo. Customers are advised not to drive their vehicle until an inspection is performed. Based on the results, vehicles may continue to be driven if the inspection is passed, or must be grounded if the inspection is not passed. A follow-up campaign will be issued for any vehicle that requires a brake booster replacement. Until such time, a “Pending” campaign will be assigned to these vehicles to ensure vehicle status is reflected in the VIN look-up tools mentioned below. Additionally, given this notice, it is a violation of Federal Law for car rental companies to rent MY 07-08 GL-Class, ML-Class, and R-Class vehicles covered by this notification until the vehicle has been inspected and passed, or grounded until parts become available and the remedy performed. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis FAQs SUMMARY OF RECALL 1. What is the recall about? a. The recall campaign is related to the brake booster housing. Specifically, advanced corrosion may have formed on the housing, which could lead to a vacuum leak and impairment to brake effectiveness. 2. What’s the difference between Campaign 2022050014 and 2022050015. a. The inspection is the same, however, they have different damage codes. So please follow the instructions exactly for the respective campaign for your vehicle. 3. Can I continue to drive the car? a. Your safety is our highest priority. MBUSA advises customers to stop driving the vehicle until the first inspection is performed. Customers will be notified by first class mail to schedule an appointment to have the inspection performed by an authorized dealer. 4. Why are other models not included? a. Only ML- (MY2006 – 2011), GL- (MY2007 – 2012), and R- (MY2006 – 2012) Class vehicles are fitted with the affected brake booster utilizing a rubber sleeve. Other models are not fitted with this rubber sleeve. Affected vehicles have been identified within this recall. 5. What types of repairs or replacements part(s) are needed? a. Affected vehicles will be inspected as a first step. After this inspection, the vehicle will be given 1 of 3 statuses. A. Inspected with no advanced corrosion: The rubber sleeve will be removed. The vehicle can be driven with no further action or customer follow-up required. B. Inspected with advanced corrosion found: A brake efficacy test will be performed. A passed test ensures the tested brake booster can continue to be used and the vehicle driven up to a maximum time limit of 2 years. The dealer will provide a “Certificate of Passed Initial Diagnostic Brake Test” detailing that the test has passed. A new notice will Next Steps/Notes Customer Notification Timeline Owner notification letters were originally mailed June 30, 2022. Owner reminder notification letters were mailed August 31, 2022. AOMS/SOMS AOMs – This recall may generate questions from your dealers. Please forward this notice to your dealers ASAP. Rental Fleet Partners Affected vehicles in your fleet should not be driven until the inspection has been performed and passed. Please contact your respective MBUSA fleet representative for further information and next steps. For repairs, please contact your preferred MBUSA dealer. While we regret any inconvenience this may cause, MBUSA is determined to maintain a high level of vehicle quality and customer satisfaction. Please refer all customer inquiries to the Customer Assistance Center at 1-888-548-8514. Please anticipate longer than usual wait times to reach an agent as is typical for any recall of large volume. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis be provided to the owner at a later date to bring the vehicle to an authorized Mercedes-Benz dealership for further inspection and potential replacement of the brake booster. C. Inspected with advanced corrosion and brake efficacy test does not pass: The vehicle will require the brake booster housing to be replaced when parts are available. Until then, the vehicle MUST NOT be driven. 6. Will the dealer repair the vehicle with the same part(s)? a. No. Based on the initial inspection, if a replacement of the brake booster is necessary, the part will be removed and replaced with a new part that does not utilize a rubber sleeve. 7. If advanced corrosion is found (status B, question 5), why must I wait two years – can’t the dealer just replace the brake booster housing now? a. Sufficient part quantities are not yet available to offer a complete repair at this time. Mercedes-Benz assures all customers that the tests performed through the inspection procedure confirm that the brake booster will remain functioning normally until such time an additional inspection is deemed necessary within a 2-year period. Mercedes-Benz is working diligently with its suppliers to procure replacement parts as soon as possible. 8. Will the replacement part(s) fail again? a. No. Provided the recall timelines are followed, the inspections and remedial measures performed by your Mercedes-Benz dealership assure you that the recall condition is remedied. 9. How long will the vehicle need to be in the workshop? a. For your convenience, an authorized Mercedes-Benz dealer will offer mobile inspection at your location of choice. Should you request the vehicle be towed to a workshop, the time for the recall will vary and is heavily dependent on towing availability and dealership schedules. The inspection itself will require 1 hour to complete. Your authorized Mercedes-Benz dealer can provide you with a better estimate of the overall time for this inspection. 10. A vehicle came in with no serial code on the brake booster unit and/or the brake booster is not the same color as in the work instruction pictures. What inspection procedure do I follow? a. Please open a PTSS case for verification of aftermarket booster and further processing. 11. Is there additional guidance other than the Work Instructions for performing? a. There is an AKUBIS video on the intranet Learning Link titled “Brake Booster Inspection and Test” (X0027E-US.TTA). This should be used as a GENERAL PROCESS GUIDELINE ONLY. The work instructions attached to this NCU are the main technical resource for performing the recall inspection. MOBILITY 12. Will the dealer provide a loaner vehicle? a. The dealer may offer to provide a loaner based on loaner vehicle availability. If available, the loaner will be provided free of charge. If no loaner vehicles are available, other solutions will be offered such as taxi/rideshare, public transportation cost reimbursement, and rental reimbursement. See the “Warranty Information” section below for additional information. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis 13. How does the dealer handle rental reimbursements? a. The dealer should reimburse the customer at the dealership. The dealership should then claim via the warranty process as set forth below in the “Warranty Information” section below. The customer letter and warranty information sections detail steps for acquiring rentals. 14. If I am advised not to drive my vehicle will towing be offered? a. Customers will be notified by first class mail that the inspection can be performed at an authorized dealer. A tow can be completed by the local dealer or by calling 1-888-548-8514. Full details will be available in the owner notification letter. In some locations, a mobile inspection can be performed at a location of the customer’s convenience and towing will not be necessary. All towing will be provided free of charge to complete this recall. 15. Is mobile repair offered for this recall? a. Yes, for your convenience, an authorized Mercedes-Benz dealer will offer mobile inspection at a location of your choice. 16. I read a media article that states I should stop driving my vehicle if I own one of the affected vehicles, what should I do? a. A VIN-based recall lookup tool on our MBUSA.com website offers a search feature that will indicate whether a vehicle has been subject to a safety recall. See www.mbusa.com/recall for more details. If your vehicle status is listed as “Recall Currently Pending” or “Open,” the vehicle MUST NOT be driven until the inspection process is performed. Further instructions will be provided based on the results of that inspection. 17. What is Mercedes-Benz going to do for Owners given this inconvenience? a. Mercedes-Benz is committed to the highest level of customer service and while we regret the inconvenience, the safety of our customers is paramount. Mobility solutions and/or reimbursement for mobility will be offered for the duration the customer’s vehicle is affected under this “stop drive” recall. See the “Warranty Information” section below for further information. 18. For cars currently at the dealers, should dealers inform their customers and ensure dealer staff do not drive the vehicle? a. For customers Yes, dealers should inform their customers that the vehicle is under a stop drive recall. The vehicle can be stored at the dealership, or towed to the customer’s residence free of charge. Please contact the CAC at 1-888-548-8514 to schedule a tow. If the customer needs alternative transportation, a mobility solution will be offered to you by the dealer (See FAQ 4). Reimbursements will be provided up to a maximum of $80 per day. b. For dealer staff Dealer staff must NOT drive the vehicle on public roads. Within the confines of the dealership, the vehicle can be driven up to 20 mph. To claim any expenses related to towing and/or storage, see the “Warranty Information” Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis STORAGE 19. Where will the vehicle be stored? a. Customers may store the vehicle at their residence and are encouraged to request their dealer perform a mobile inspection. Should the vehicle not pass the inspection, the vehicle may be continued to be stored at their residence or at their preferred dealer. REIMBURSEMENTS/OWNER PAY 20. Are Owners responsible for expenses related to the recall? a. No. Parts and labor will be provided free of charge. Alternate mobility solutions will be offered via MBUSA and/or an authorized Mercedes-Benz dealership. If the customer exceeds the limits of what Mercedes-Benz offers, they may be responsible for the additional expenses. 21. I may have paid for repairs related to this recall. Will I receive reimbursement? a. Current and previous owners may be eligible to receive reimbursement if they have had a brake booster replacement due to the conditions specified in this recall. Requests for reimbursement may include parts, labor, fees and taxes. Reimbursement may be limited to the amount the repair would have cost if completed by an authorized Mercedes-Benz dealer. Details will be provided in the recall owner notification letter. 22. What happens if the dealer determines repairs aren’t necessary now but Owners experience concerns related to the recall in the future? Are Owners responsible for diagnostic fees/repair costs? a. Any future owner concerns will be evaluated on an individual basis. Extensive analyses were conducted by Mercedes-Benz AG. Based on these analyses, a test method was developed for the workshops which, among other aspects, ensures the functionality of the brake booster by usage of diagnostic-supported test routines. If the dealer determines based on the inspection that the brake booster does not need to be replaced at this time but the owner experiences recall-related concerns in the future, a re-inspection may be carried out within 2 years to ensure the functionality of the brake booster. Parts and labor associated with the recall are free of charge to the customer. 23. I inspected the vehicle and found other brake components to be in need of repair. a. This recall relates to potential advanced corrosion on the brake booster housing. If other brake system component(s) are in need of repair/replacement such that they would impair or hinder performing the inspection for the recall condition, the parts/system must be rectified prior so the initial inspection may be completed. These parts and labor are not covered under this recall. 24. I received a letter but I no longer own the vehicle. How can I update my ownership information? a. Customers should be directed to the MBUSA recall website at https://www.mbusa.com/en/recall, enter their VIN, and update their contact information. 25. I lost faith in the vehicle and demand MBUSA provide a replacement. a. Such customer inquiries will be evaluated on a case by case basis. Direct the customer to 1-888-548-8514. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis 26. Can/should dealers wholesale/sell affected used car vehicles? a. No. MBUSA advises dealers not to sell used vehicles subject to this recall until the inspection is completed. 27. While performing the Xentry diagnostic test the technician finds a brake fluid leak, can this be covered under warranty? a. Yes. If while performing the inspection procedure other components fail then this would be claimable on the same line as the recall and considered primary loss. 28. While performing the Xentry diagnostic test, the brake line needed to be repaired. How do I address this? a. Follow AR42.10-P-0020A and utilize flaring kit A000 589 20 99 00 to construct brake lines from bulk stock. 29. If the vehicle fails the Xentry diagnostic pressure test, does the RO need to stay open? a. No, close the RO and submit the claim based on the warranty codes provided below. The dealership may choose to open another RO until the parts replacement is complete. 30. The customer wishes to keep driving the vehicle and refuses the repair. How do I handle this situation? a. Customer safety is our top priority at Mercedes-Benz. If the customer insists on driving the vehicle despite the warnings associated with a “stop drive” recall, the following language MUST be added to the Repair Order and initialed by the customer: ______ (Initial Here) ASSUMPTION OF RISK FOR REMOVAL OF VEHICLE. I understand that my vehicle is subject to a “Stop Drive” recall and that continuing to drive my vehicle involves inherent risks and dangers of accidents, property loss or damage, and serious personal injury to me and others, as well as potential financial losses. I have carefully considered the extent of the risks involved, and I voluntarily and freely choose to assume these risks. 31. Is there a point of contact for the dealership, AOM’s, or other field personnel to request technical information or assistance relating specifically to the Xentry diagnostic test? a. The Work Instructions and Xentry diagnostic test have been verified prior to the recall launch. Thoroughly read the instructions, directions, and questions as presented in the Xentry diagnostic brake pressure test steps. If there are still questions after completing the first test , please open a PTSS case for the particular process or direction that is unclear. We do not anticipate any questions relating to the test at this time. 32. The customer wishes to keep driving the vehicle and is refusing to initial the “Assumption of Risk” on the Repair Order. How do I handle this situation? a. Follow the same protocol used at your dealership when a customer refuses services offered. Also, make a notation on the RO that “customer refuses to initial the Assumption of Risk.” A customer signature must be recorded on the RO. Campaign No. 2022050014, May 2022 Revision E 09/23/2022 TO: ALL MERCEDES-BENZ CENTERS SUBJECT: Model GL-Class, ML-Class, and R-Class (X164, W164 and 251 platform) Model Year 2007-2008 Inspect Brake Booster – with Pedal Rework Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2007-2008 ML, GL (W164/X164 platform) and R-Class (251 platform) vehicles, the function of the brake booster might be affected due to advanced corrosion in the joint area of its housing. After extended time in the field and in conjunction with prolonged water exposure, this corrosion might lead to a vacuum leak at the brake booster. If this were to occur, the brake force support might be reduced, leading to an increase in the brake pedal forces required to decelerate the vehicle, and/or increased stopping distances. Additionally, in rare cases of very severe corrosion, it might be possible for a particularly strong or hard brake application to cause mechanical damage in the brake booster, whereby the connection between brake pedal and brake system would fail. In such a very rare case, it would not be possible to decelerate the vehicle via the brake pedal. The risk of a crash or injury would be increased. The function of the parking brake is not affected by this issue. Before the issue occurs, the driver might notice a change in the brake pedal feel and/or hissing/airflow noises when applying the brake pedal. MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will remove the rubber sleeve from the brake booster housing, check the brake booster on the affected vehicles and, depending on the result of this inspection, replace as necessary. Affected customers will be mailed a recall owner notification letter and instructed to stop driving their vehicles until the inspection process is completed. Prior to performing this Campaign:  VMI must always be checked before performing campaigns to verify that the campaign is required on a specific vehicle. Always check for any other open campaigns, and perform accordingly.  Please review the entire Campaign bulletin and follow the repair procedure exactly as described. Approximately 14,123 vehicles are affected. Order No. P-RC-2022050014 This bulletin has been created and maintained in accordance with MBUSA-SLP S423QH001, Document and Data Control, and MBUSA-SLP S424HH001, Control of Quality Record 9 P-RC-2022050014 Inspect Brake Booster Return information for rubber sleeve and quick test has been removed. Existing problems that would hinder the inspection procedure or any subsequent repairs must first be rectified and are the responsibility of the customer. Any associated costs are not claimable and should not be included with the campaign claim. Any primary loss which is a direct result of performing the XENTRY test should be submitted on the same claim as the campaign reimbursement. Before starting work, there must be no fault message present in the instrument cluster for the brake system. If a fault message is present before starting work, it must be rectified and is the responsibility of the customer. Any associated costs are not claimable and should not be included with the campaign claim. 1. Flow chart with allowable labor operation codes when submitting a warranty claim. 10 P-RC-2022050014 Check/test procedure A–visual inspection only 1. Open the hood and check the water drains (marking, figure 1) for correct installation and ability to drain. Only for model 251 Clean and correctly install water drains if necessary. Figure 1 11 P-RC-2022050014 2. Remove the rubber sleeve wrapped around the brake booster (A, figure 2) with a suitable tool (hook and side cutting pliers). If the rubber sleeve is not present, please proceed to check/test procedure A1. The rubber sleeve should be separated above the barcode label on the brake booster as seen in (A, figure 2 and B, figure 4.1). Figure 2 3. Take a photo of the rubber sleeve with the VIN label of the B-pillar (A, figures 3 and 4) and store to a local HDD/computer storage location with the vehicle service file and attach it to the warranty claim in EVA. These pictures serve as documentation of the current condition of the brake booster. Figure 3 Figure 4 12 P-RC-2022050014 4. Check corrosion of the brake booster using the removed rubber sleeve. Use figures 5, 6 and 7 to assess corrosion. Brake booster OK: Multiple point-shaped corrosion marks (figure 5) are permissible. A maximum of one point-shaped corrosion mark with a diameter greater than 15 mm (figures 6 and 7) is permitted. Figure 5 OK Figure 6 OK Figure 7 OK Brake booster not OK: Widespread corrosion marks spanning the rubber sleeve are not permissible. More than one corrosion mark with a diameter greater than 15 mm is not permissible. a. Corrosion measurements Exceeds thresholds-NOK: Carry out check/test procedure B – XENTRY/DAS. b. Corrosion measurements Does not exceed threshold-OK (figure 5, 6 or 7): End measure. (Certificate of Passed Initial Diagnostic Brake Test not required). If the measure is ended, do not re-install a new rubber sleeve. Apply marking with white touch-up paint pen (1, figure 8) to the brake booster checked. Under no circumstances should you treat the brake booster with anti-corrosion agent. The findings from the check/test procedure must be documented on the Repair Order and included in the dealer text in the warranty claim in EVA. 13 P-RC-2022050014 Check/test procedure A1 – visual inspection only if no rubber sleeve is present 1. Take a photo of the barcode label (B, figure 8) on the brake booster and store to a local HDD/computer storage location with the vehicle service file and attach to the warranty claim in EVA. Figure 8 2. Check sequence of numbers on the barcode label (C, figure 9). a. If the numeric sequence between numbers 13 and 17 is less than “15126”: Carry out scope of testing B – XENTRY/DAS. b. If the numeric sequence between numbers 13 and 17 is greater than or equal to “15126”: End measure. Figure 9 14 P-RC-2022050014 Check/test procedure B – XENTRY/DAS This step is only to be used if step A or A1 has failed Ensure use of XENTRY Diagnosis version 03/2022 or higher. The current version of all add-ons must be installed. Make sure to follow the operation steps exactly as described in XENTRY Diagnosis. 1. Connect XENTRY Diagnosis. XENTRY must be connected via the cable with VCI/SD Connect. Note regarding vehicles with KeylessGo: Remove KeylessGo start button and perform test with ignition key. Do not perform any unnecessary braking procedures (maximum full-stop braking) before the test. As a rule, the test should be performed nonstop without interruption. In certain conditions, the XENTRY scope of testing can be interrupted while the test is ongoing (e.g. hydraulic system is leaky) (cancellation). In this case, please follow the user guidance in XENTRY/DAS Diagnosis, because notes on the causes will be displayed for you. IMPORTANT: If XENTRY/DAS Diagnosis requests that the brake pedal be withdrawn into the starting position toward the driver, this must be done by means of a powerful foot motion. Check brake booster with XENTRY/DAS. To do this, select the menu item “Main groups – Control units – Chassis – ESP-Electronic Stability Program – Complete list of guided tests – Braking power”. Then follow the user guidance in XENTRY/DAS Diagnosis. Print out the brake force “event log” after the test and store to a local HDD/computer storage location. a. XENTRY/DAS test not passed: Please perform this test again. Only perform this test twice. b. XENTRY/DAS test passed: Continue with operation step 2. If the XENTRY/DAS test was not passed the first time, you must perform a second XENTRY/DAS test. If this second test is now passed, continue with the operation step 2 of scope of testing B. IMPORTANT: Only perform the second test if the first XENTRY/DAS test was not passed. The second test must be invoiced using operation number 02-0245 or 02-0246. a. XENTRY/DAS test of the second test not passed: Close campaign with claim. See Launch NCU FAQ for mobility solution options to offer to the customer until parts are available and the part can be exchanged. Do not provide customer Certificate of Passed Initial Diagnostic Brake Test. b. XENTRY/DAS test of the second test passed: Continue with operation step 2. 15 P-RC-2022050014 2. Apply marking with white touch-up paint pen (1, figure 10) to the inspected brake booster. Under no circumstances should you treat the brake booster with anti-corrosion agent/paint. Figure 10 3. Print out customer certificate titled “Certificate of Passed Initial Diagnostic Brake Test”, located at the end of this document, fill out, sign, and hand over to the customer. 4. Disconnect XENTRY Diagnosis. 16 P-RC-2022050014 Warranty Information Note: The following allowable labor operation should be used when submitting a warranty claim for this repair: Damage Code Operation Number Description Labor Time (hrs.) 42 900 06 02-0036 Check/test procedure A Check brake unit Includes: Remove rubber sleeve from brake unit and document test result This operation number can be used even if no rubber sleeve is present on the brake unit 0.2 02-0089 Check/test procedure A1 Check barcode on brake unit Only if no rubber sleeve is present on the brake unit End of test: Do not perform any further work. 0.1 End Here If Vehicle Passed Visual Inspection 02-0038* Check/test procedure B Check brake unit using XENTRY Diagnosis Findings: OK Includes: Connect/disconnect XENTRY 0.4 End Here If Vehicle Failed Visual Inspection & Passed 1st XENTRY Check 02-0044* Check/test procedure B Check brake unit using XENTRY Diagnosis Findings: not OK Includes: Connect/disconnect XENTRY Repeat scope of testing with the result of test item 02-0245 or 02-0246. 0.4 02-0245** Check/test procedure B – 2nd XENTRY/DAS test Extra work for: G 02 0044: Check brake unit with XENTRY Diagnosis – findings OK The second time the vehicle was tested, it was found to be OK. 0.2 End Here If Vehicle Failed Visual Inspection & Failed 1st XENTRY Check but Passed 2nd XENTRY Check 02-0246** Check/test procedure B – 2nd XENTRY/DAS test Extra work for: G 02 0044: Check brake unit with XENTRY Diagnosis – findings not OK The second time the vehicle was tested, it was found to be not OK 0.2 * Invoice only operation item 02-0038 or 02-0044. Invoicing both operation items is not permissible. ** Invoice operation item 02-0245 or 02-0246. Invoicing both operation items is not permissible. When using operation item 02-0038 or 02-0245, the Certificate of Passed Initial Diagnostic Brake Test must be handed over to the customer which is located at the end of this document. Note: Always check ASRA for the current OP-Code times. Labor times are subject to change and updates may not be reflected in this document. 17 P-RC-2022050014 Warranty Information For vehicles impacted by the stop drive, MBUSA will allow for reimbursement of several associated ancillary costs as outlined below. These reimbursements are solely to support the implementation of this recall and to reduce the risk of customer inconveniences.  Damage code 99803 01 – Mobile inspection incentive o $150 per vehicle o Claimed separately and on top of the recall inspection  Damage code 99039 01 – Towing o Up to $125 per tow if arranged by customer or dealer outside of normal process o Invoice must be attached to claim o Please use normal CAC tow process whenever possible to alleviate reimbursement  Damage code 99046 01 – Vehicle storage o $15 per vehicle, per day for dealership onsite storage o Up to $56.25 per vehicle, per day for offsite storage o Invoice must be attached to claim o Submit every 30 days and then a final claim to reconcile  Damage code 99047 01 – Active vehicle care during vehicle storage o $300 per vehicle, one-time, for the entire period claimed at the end of the storage period (i.e. wash, maintain battery, move to avoid flat spots and brake corrosion, etc.)  Damage code 99304 01 – Mobility solutions o Up to $2,400 per month for rental vehicle (up to $80/day), loaner ($80/day flat fee), taxi / rideshare services or use of public transportation o Dealers are encouraged to use loaner vehicles for customer requests. See sales NCU on changes to the CVP program and alternate mobility options. o Rental agreement, loaner agreement and/or invoice(s) must be attached to claim o Claims may be submitted on a monthly basis / multiple submissions allowed if needed. This support is limited until the final remedy has been performed on the customer’s vehicle. 18 P-RC-2022050014 Certificate of Passed Initial Diagnostic Brake Test Recall campaign – Inspect Brake Booster Vehicle identification number: Dear Valued Customer: Your vehicle’s brake booster has been inspected by your authorized Mercedes-Benz service facility for corrosion and functionality under MBUSA Recall Campaign number 2022050015 or 2022050014 bearing NHTSA ID# 22V315. The results of this initial inspection confirm that it is not immediately necessary to replace the brake booster in your vehicle. Therefore, your vehicle is no longer subject to the Stop Drive and may continue to be driven. A mobility solution is no longer necessary. Important! The brake booster may be subject to an additional inspection or a replacement brake booster, whichever comes first, within a period of 2 years from the date of the initial inspection. Mercedes-Benz USA will contact you again by mail to schedule the additional inspection at the appropriate time. If you sell your vehicle in the meantime, you must provide this document to the buyer. The additional inspection of the brake booster is very important to your vehicle’s safety. Therefore, it will be checked whether this has been carried out no later than 2 years after the first inspection. If this additional inspection was not carried out on your vehicle in time, you should stop operating the vehicle. If the described additional inspection is not completed, advanced corrosion in the joint area of the housing could potentially impair the function of the brake booster. This might increase the required brake pedal force and possibly extend the stopping distance. In very rare cases, it cannot be completely ruled out that mechanical damage to the brake booster might occur, whereby the connection between brake pedal and brake system would fail. In that condition, the vehicle would no longer be decelerated via the service brake which would increase the risk of a crash or injury. Date of inspection: Signature of Mercedes-Benz Dealer

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Updated Recall Campaign Launch Notification – STOP DRIVE
Inspect Brake Booster without Pedal Rework

UPDATE: June 3, 2022

Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis IMPORTANT RECALL CAMPAIGN UPDATE STOP DRIVE NOTIFICATION! Please see the attached documents related to the campaign listed above, which include: Topic Page Launch NCU 2 Frequently Asked Questions (FAQ) a. What is this Recall b. Mobility c. Storage d. Reimbursement e. Miscellaneous 3 Work Instructions 7 Warranty Information & Parts Return Instructions 13 Certificate of Passed Initial Diagnostic Brake Test 16 Please note that all customer inquiries should be directed to the Customer Assistance Center at 1-888-548-8514. Sincerely, Gregory Gunther Department Manager, Vehicle Compliance & Analysis TO: Mercedes-Benz Dealer Principals, General Managers, Sales Managers, Service Managers, Parts Managers FROM: Gregory Gunther, Department Manager, Vehicle Compliance and Analysis, Engineering Services RE: Updated Recall Campaign Launch Notification – STOP DRIVE Inspect Brake Booster without Pedal Rework MY06-12 GL-Class, ML-Class, R-Class (X164, W164, 251 platform) UPDATE: June 3, 2022 Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis Recall Campaign Launch Notification June 3, 2022 Campaign No. : NHTSA ID Campaign Desc. : Inspect Brake Booster Without Pedal Rework 2022050015 22V315 22P4290005 This is to notify you of an update to the Recall Campaign Launch to inspect the brake booster on 278,173 Model Year (“MY”) 2006-2012 GL-Class, ML-Class, and R-Class (X164, W164 and 251 platform) vehicles. The recall campaign will be visible on the www.safercar.gov website and may generate questions from customers. Affected VINs were flagged in VMI as “OPEN” on May 28, 2022. Background Issue Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2006-2012 ML-Class, GL-Class (W164/X164 platform) and R-Class (251 platform) vehicles, the function of the brake booster might be affected due to advanced corrosion in the joint area of its housing. After extended time in the field and in conjunction with prolonged water exposure, this corrosion might lead to a vacuum leak at the brake booster. If this were to occur, the brake force support might be reduced, leading to an increase in the brake pedal forces required to decelerate the vehicle, and/or increased stopping distances. Additionally, in rare cases of very severe corrosion, it might be possible for a particularly strong or hard brake application to cause mechanical damage in the brake booster, whereby the connection between brake pedal and brake system would fail. In such a very rare case, it would not be possible to decelerate the vehicle via the brake pedal. The risk of a crash or injury would be increased. The function of the parking brake is not affected by this issue. Before the issue occurs, the driver might notice a change in the brake pedal feel and/or hissing/airflow noises when applying the brake pedal. What We’re Doing MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will remove the rubber sleeve from the brake booster housing, check the brake booster on the affected vehicles and, depending on the result of this inspection, replace as necessary. Affected customers will be mailed a recall owner notification letter and instructed to stop driving their vehicles until the inspection process is completed. Parts The inspection procedure is available and can be performed. Parts are not available at this time should they be needed. Once parts are available, certain customers will be informed via a second owner notification letter to have a final repair performed. Vehicles Affected Vehicle Model Year(s) 2006-2012 Vehicle Model GL-Class, ML-Class, R-Class Vehicle Populations Total Recall Population 278,173 Total Vehicles in Dealer Inventory 0 The vehicles will be flagged as “OPEN” and Work Instructions will be available in Star TekInfo. Customers are advised not to drive their vehicle until an inspection is performed. Based on the results, vehicles may continue to be driven if the inspection is passed, or must be grounded if the inspection is not passed. A follow-up campaign will be issued for any vehicle that requires a brake booster replacement. Until such time, a “Pending” campaign will be assigned to these vehicles to ensure vehicle status is reflected in the VIN look-up tools mentioned below. Additionally, given this notice, it is a violation of Federal Law for car rental companies to rent MY 06-12 GL-Class, ML-Class, and R-Class vehicles covered by this notification until the vehicle has been inspected and passed, or grounded until parts become available and the remedy performed. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis FAQs SUMMARY OF RECALL 1. What is the recall about? a. The recall campaign is related to the brake booster housing. Specifically, advanced corrosion may have formed on the housing, which could lead to a vacuum leak and impairment to brake effectiveness. 2. What’s the difference between Campaign 2022050014 and 2022050015. a. The inspection is the same, however, they have different damage codes. So please follow the instructions exactly for the respective campaign for your vehicle. 3. Can I continue to drive the car? a. Your safety is our highest priority. MBUSA advises customers to stop driving the vehicle until the first inspection is performed. Customers will be notified by first class mail to schedule an appointment to have the inspection performed by an authorized dealer. 4. Why are other models not included? a. Only ML- (MY2006 – 2011), GL- (MY2007 – 2012), and R- (MY2006 – 2012) Class vehicles are fitted with the affected brake booster utilizing a rubber sleeve. Other models are not fitted with this rubber sleeve. Affected vehicles have been identified within this recall. 5. What types of repairs or replacements part(s) are needed? a. Affected vehicles will be inspected as a first step. After this inspection, the vehicle will be given 1 of 3 statuses. A. Inspected with no advanced corrosion: The rubber sleeve will be removed. The vehicle can be driven with no further action or customer follow-up required. B. Inspected with advanced corrosion found: A brake efficacy test will be performed. A passed test ensures the tested brake booster can continue to be used and the vehicle driven up to a maximum time limit of 2 years. The dealer will provide a “Certificate of Passed Initial Diagnostic Brake Test” detailing that the test has passed. A new notice will be provided to the owner at a later date to bring the vehicle to an authorized Mercedes-Benz dealership for further inspection and potential replacement of the brake booster. Next Steps/Notes Customer Notification Timeline Owner notification letters will be mailed on or before June 30, 2022. AOMS/SOMS AOMs – This recall may generate questions from your dealers. Please forward this notice to your dealers ASAP. Rental Fleet Partners Affected vehicles in your fleet should not be driven until the inspection has been performed and passed. Please contact your respective MBUSA fleet representative for further information and next steps. For repairs, please contact your preferred MBUSA dealer. While we regret any inconvenience this may cause, MBUSA is determined to maintain a high level of vehicle quality and customer satisfaction. Please refer all customer inquiries to the Customer Assistance Center at 1-888-548-8514. Please anticipate longer than usual wait times to reach an agent as is typical for any recall of large volume. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis C. Inspected with advanced corrosion and brake efficacy test does not pass: The vehicle will require the brake booster housing to be replaced when parts are available. Until then, the vehicle MUST NOT be driven. 6. Will the dealer repair the vehicle with the same part(s)? a. No. Based on the initial inspection, if a replacement of the brake booster is necessary, the part will be removed and replaced with a new part that does not utilize a rubber sleeve. 7. If advanced corrosion is found (status B, question 5), why must I wait two years – can’t the dealer just replace the brake booster housing now? a. Sufficient part quantities are not yet available to offer a complete repair at this time. Mercedes-Benz assures all customers that the tests performed through the inspection procedure confirm that the brake booster will remain functioning normally until such time an additional inspection is deemed necessary within a 2-year period. Mercedes-Benz is working diligently with its suppliers to procure replacement parts as soon as possible. 8. Will the replacement part(s) fail again? a. No. Provided the recall timelines are followed, the inspections and remedial measures performed by your Mercedes-Benz dealership assure you that the recall condition is remedied. 9. How long will the vehicle need to be in the workshop? a. For your convenience, an authorized Mercedes-Benz dealer will offer mobile inspection at your location of choice. Should you request the vehicle be towed to a workshop, the time for the recall will vary and is heavily dependent on towing availability and dealership schedules. The inspection itself will require 1 hour to complete. Your authorized Mercedes-Benz dealer can provide you with a better estimate of the overall time for this inspection. MOBILITY 10. Will the dealer provide a loaner vehicle? a. The dealer may offer to provide a loaner based on loaner vehicle availability. If available, the loaner will be provided free of charge. If no loaner vehicles are available, other solutions will be offered such as taxi/rideshare, public transportation cost reimbursement, and rental reimbursement. See the “Warranty Information” section below for additional information. 11. If I am advised not to drive my vehicle will towing be offered? a. Customers will be notified by first class mail that the inspection can be performed at an authorized dealer. A tow can be completed by the local dealer or by calling 1-888-548-8514. Full details will be available in the owner notification letter. In some locations, a mobile inspection can be performed at a location of the customer’s convenience and towing will not be necessary. All towing will be provided free of charge to complete this recall. 12. Is mobile repair offered for this recall? a. Yes, for your convenience, an authorized Mercedes-Benz dealer will offer mobile inspection at a location of your choice. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis 13. I read a media article that states I should stop driving my vehicle if I own one of the affected vehicles, what should I do? a. A VIN-based recall lookup tool on our MBUSA.com website offers a search feature that will indicate whether a vehicle has been subject to a safety recall. See www.mbusa.com/recall for more details. If your vehicle status is listed as “Recall Currently Pending” or “Open,” the vehicle MUST NOT be driven until the inspection process is performed. Further instructions will be provided based on the results of that inspection. 14. What is Mercedes-Benz going to do for Owners given this inconvenience? a. Mercedes-Benz is committed to the highest level of customer service and while we regret the inconvenience, the safety of our customers is paramount. Mobility solutions and/or reimbursement for mobility will be offered for the duration the customer’s vehicle is affected under this “stop drive” recall. See the “Warranty Information” section below for further information. 15. For cars currently at the dealers, should dealers inform their customers and ensure dealer staff do not drive the vehicle? a. For customers Yes, dealers should inform their customers that the vehicle is under a stop drive recall. The vehicle can be stored at the dealership, or towed to the customer’s residence free of charge. Please contact the CAC at 1-888-548-8514 to schedule a tow. If the customer needs alternative transportation, a mobility solution will be offered to you by the dealer (See FAQ 4). Reimbursements will be provided up to a maximum of $80 per day. b. For dealer staff Dealer staff must NOT drive the vehicle on public roads. Within the confines of the dealership, the vehicle can be driven up to 20 mph. To claim any expenses related to towing and/or storage, see the “Warranty Information” STORAGE 16. Where will the vehicle be stored? a. Customers may store the vehicle at their residence and are encouraged to request their dealer perform a mobile inspection. Should the vehicle not pass the inspection, the vehicle may be continued to be stored at their residence or at their preferred dealer. REIMBURSEMENTS/OWNER PAY 17. Are Owners responsible for expenses related to the recall? a. No. Parts and labor will be provided free of charge. Alternate mobility solutions will be offered via MBUSA and/or an authorized Mercedes-Benz dealership. If the customer exceeds the limits of what Mercedes-Benz offers, they may be responsible for the additional expenses. 18. I may have paid for repairs related to this recall. Will I receive reimbursement? a. Current and previous owners may be eligible to receive reimbursement if they have had a brake booster replacement due to the conditions specified in this recall. Requests for reimbursement may include parts, labor, fees and taxes. Reimbursement may be limited to the amount the Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis repair would have cost if completed by an authorized Mercedes-Benz dealer. Details will be provided in the recall owner notification letter. 19. What happens if the dealer determines repairs aren’t necessary now but Owners experience concerns related to the recall in the future? Are Owners responsible for diagnostic fees/repair costs? a. Any future owner concerns will be evaluated on an individual basis. Extensive analyses were conducted by Mercedes-Benz AG. Based on these analyses, a test method was developed for the workshops which, among other aspects, ensures the functionality of the brake booster by usage of diagnostic-supported test routines. If the dealer determines based on the inspection that the brake booster does not need to be replaced at this time but the owner experiences recall-related concerns in the future, a re-inspection may be carried out within 2 years to ensure the functionality of the brake booster. Parts and labor associated with the recall are free of charge to the customer. 20. I inspected the vehicle and found other brake components to be in need of repair. a. This recall relates to potential advanced corrosion on the brake booster housing. If other brake system component(s) are in need of repair/replacement such that they would impair or hinder performing the inspection for the recall condition, the parts/system must be rectified prior so the initial inspection may be completed. These parts and labor are not covered under this recall. 21. I received a letter but I no longer own the vehicle. How can I update my ownership information? a. Customers should be directed to the MBUSA recall website at https://www.mbusa.com/en/recall, enter their VIN, and update their contact information. 22. I lost faith in the vehicle and demand MBUSA provide a replacement. a. Such customer inquiries will be evaluated on a case by case basis. Direct the customer to 1-888-548-8514. 23. Can/should dealers wholesale/sell affected used car vehicles? a. No. MBUSA advises dealers not to sell used vehicles subject to this recall until the inspection is completed. 24. While performing the Xentry diagnostic test the technician finds a brake fluid leak, can this be covered under warranty? a. Yes. If while performing the inspection procedure other components fail then this would be claimable on the same line as the recall and considered primary loss. 25. If the vehicle fails the Xentry diagnostic pressure test, does the RO need to stay open? a. No, close the RO and submit the claim based on the warranty codes provided below. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis 26. The customer wishes to keep driving the vehicle and refuses the repair. How do I handle this situation? a. Customer safety is our top priority at Mercedes-Benz. If the customer insists on driving the vehicle despite the warnings associated with a “stop drive” recall, the following language MUST be added to the Repair Order and initialed by the customer: ______ (Initial Here) ASSUMPTION OF RISK FOR REMOVAL OF VEHICLE. I understand that my vehicle is subject to a “Stop Drive” recall and that continuing to drive my vehicle involves inherent risks and dangers of accidents, property loss or damage, and serious personal injury to me and others, as well as potential financial losses. I have carefully considered the extent of the risks involved, and I voluntarily and freely choose to assume these risks. 27. Is there a point of contact for the dealership, AOM’s, or other field personnel to request technical information or assistance relating specifically to the Xentry diagnostic test? a. The Work Instructions and Xentry diagnostic test have been verified prior to the recall launch. Thoroughly read the instructions, directions, and questions as presented in the Xentry diagnostic brake pressure test steps. If there are still questions after completing the first test , please open a PTSS case for the particular process or direction that is unclear. We do not anticipate any questions relating to the test at this time. 28. The customer wishes to keep driving the vehicle and is refusing to initial the “Assumption of Risk” on the Repair Order. How do I handle this situation? a. Follow the same protocol used at your dealership when a customer refuses services offered. Also, make a notation on the RO that “customer refuses to initial the Assumption of Risk.” A customer signature must be recorded on the RO. Campaign No. 2022050015, May 2022 Revision A 06/03/2022 TO: ALL MERCEDES-BENZ CENTERS SUBJECT: Model GL-Class, ML-Class, and R-Class (X164, W164 and 251 platform) Model Year 2006-2012 Inspect Brake Booster – without Pedal Rework Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2006-2012 ML, GL (W164/X164 platform) and R-Class (251 platform) vehicles, the function of the brake booster might be affected due to advanced corrosion in the joint area of its housing. After extended time in the field and in conjunction with prolonged water exposure, this corrosion might lead to a vacuum leak at the brake booster. If this were to occur, the brake force support might be reduced, leading to an increase in the brake pedal forces required to decelerate the vehicle, and/or increased stopping distances. Additionally, in rare cases of very severe corrosion, it might be possible for a particularly strong or hard brake application to cause mechanical damage in the brake booster, whereby the connection between brake pedal and brake system would fail. In such a very rare case, it would not be possible to decelerate the vehicle via the brake pedal. The risk of a crash or injury would be increased. The function of the parking brake is not affected by this issue. Before the issue occurs, the driver might notice a change in the brake pedal feel and/or hissing/airflow noises when applying the brake pedal. MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will remove the rubber sleeve from the brake booster housing, check the brake booster on the affected vehicles and, depending on the result of this inspection, replace as necessary. Affected customers will be mailed a recall owner notification letter and instructed to stop driving their vehicles until the inspection process is completed. Prior to performing this Campaign:  VMI must always be checked before performing campaigns to verify that the campaign is required on a specific vehicle. Always check for any other open campaigns, and perform accordingly.  Please review the entire Campaign bulletin and follow the repair procedure exactly as described. Approximately 278,173 vehicles are affected. Order No. P-RC-2022050015 This bulletin has been created and maintained in accordance with MBUSA-SLP S423QH001, Document and Data Control, and MBUSA-SLP S424HH001, Control of Quality Record 8 P-RC-2022050015 Inspect Brake Booster Existing problems that would hinder the inspection procedure or any subsequent repairs must first be rectified. Any associated costs are not claimable and should not be included with the campaign claim. Any primary loss which is a direct result of performing the XENTRY test should be submitted on the same claim as the campaign reimbursement.  Ensure use of XENTRY Diagnosis version 03/2022 or higher.  Before beginning with the work procedure, install the current versions of all add-ons as well as add-on 22889 and 23043 on XENTRY Diagnosis.  Make sure to follow the operation steps exactly as described in XENTRY Diagnosis. Check/test procedure A The following work must be invoiced using damage code (SSL) “42 900 05”. 1. Open the hood and check the water drains (marking, figure 1) for correct installation and ability to drain. Clean and correctly install water drains if necessary. Figure 1 9 P-RC-2022050015 2. Remove the rubber sleeve wrapped around the brake booster (A, figure 2) with a suitable tool (hook and side cutting pliers). If the rubber sleeve is not present, please proceed to check/test procedure A1. The rubber sleeve should be separated above the barcode label on the brake booster as seen in (A, figure 2 and B, figure 4.1). Figure 2 3. Take a photo of the rubber sleeve with the VIN label of the B-pillar (A, figures 3 and 4) and store to a local HDD/computer storage location with the vehicle service file and attach it to the warranty claim in EVA. These pictures serve as documentation of the current condition of the brake booster. Figure 3 Figure 4 Figure 4.1 10 P-RC-2022050015 4. Check corrosion of the brake booster using the removed rubber sleeve Figure 2(A). Use figures 5, 6 and 7 to assess corrosion. Brake booster OK: Multiple point-shaped corrosion marks (figure 5) are permissible. A maximum of one point-shaped corrosion mark with a diameter greater than 15 mm (figures 6 and 7) is permitted. Figure 5 OK Figure 6 Ok Figure 7 OK Brake booster not OK: Widespread corrosion marks spanning the rubber sleeve are not permissible. Corrosion marks of multiple points with a diameter greater than 15 mm are not permissible. a. Corrosion measurements Exceeds thresholds-NOK: Carry out check/test procedure B – XENTRY/DAS. b. Corrosion measurements Does not exceed threshold-OK (figure 5, 6 or 7): End measure. (Certificate of Passed Initial Diagnostic Brake Test not required). If the measure is ended, do not re-install a new rubber sleeve. Apply marking with white touch-up paint pen (1, figure 8) to the brake booster checked. DO NOT treat the brake booster with an anti-corrosion agent! The findings from the check/test procedure must be documented on the Repair Order and included in the dealer text in the warranty claim in EVA. 11 P-RC-2022050015 Check/test procedure A1 If the rubber sleeve on the brake booster is not present, please take a photo of the barcode label (B, figure 4.1) on the brake booster and store to a local HDD/computer storage location with the vehicle service file and attach to the warranty claim in EVA. Then continue with check/test procedure A1. Only if the rubber sleeve of the brake booster is missing. 1. Check sequence of numbers on the barcode label (C, figure 4.2). a. IF the sequence of numbers is less than “15126” starting from the 13th number: Perform check/test procedure B – XENTRY/DAS. b. If the sequence of numbers is greater than or equal to “15126” starting from the 13th number: End the measure. Figure 4.2 Check/test procedure B – XENTRY/DAS The following work must be invoiced using damage code (SSL) “42 900 05”. Add-on 22889 and 23043 must be installed. Without add-on 22889 and 23043, check/test procedure B cannot be performed. 1. Connect XENTRY Diagnosis and create an initial quick test. XENTRY must be connected via the cable with VCI/SD Connect. The test may only be performed once and in full without interruption. Do not perform any unnecessary braking procedures (maximum full-stop braking) before the test. 12 P-RC-2022050015 2. Check brake booster with XENTRY/DAS. To do this, select the menu item “Main groups – Control units – Chassis – ESP-Electronic Stability Program – Complete list of guided tests – Braking power”. Then follow the user guidance in XENTRY/DAS Diagnosis. Print out the brake force “event log” after the test and store to a local HDD/computer storage location. c. XENTRY/DAS check not passed: Close campaign with claim. See Launch NCU FAQ for mobility solution options to offer to the customer until parts are available and the part can be exchanged. Do not provide customer Certificate of Passed Initial Diagnostic Brake Test. d. XENTRY/DAS check passed: Continue. 3. Disconnect XENTRY Diagnosis. 4. Apply marking with white touch-up paint pen (1, figure 8) to the inspected brake booster. DO NOT treat the brake booster with an anti-corrosion agent/paint. 5. Print out customer certificate titled “Certificate of Passed Initial Diagnostic Brake Test”, located at the end of this document, fill out, sign, and hand over to the customer. Figure 8 13 P-RC-2022050015 Primary Parts Information Qty. Part Name Part Number 0.1 Rubber Sleeve SLEEVE Note: The following allowable labor operation should be used when submitting a warranty claim for this repair: Warranty Information Note on the claim submission: Please ensure you claim 0.1 quantity for part number = SLEEVE (uppercase) for all rubber sleeve removal labor claims. This will result in QEC part return request in the NetStar Parts Disposition application. Claims in which the quantity exceeds 0.1 will be stopped in error in EVA until corrected. Be aware that a claim stopped in error will not close the campaign and will not allow payment to the dealer so please correct these errors immediately. Note on the return shipment: • For each vehicle processed, print out the part return barcode from the NetStar Parts Disposition application • Pack the rubber sleeve with the part return barcode in a plastic bag and seal securely with barcode visible from the outside (see figure 1).  For Dedicated Delivery Service (DDS) dealers, please forward parts in bulk (10-20 pcs per Load List unless time does not permit) to your facing PDC using the normal DDS warranty parts return process. Please ensure you include a Dealer Return slip marked for Warranty.  For non-DDS dealers, please forward parts in bulk (10-20 pcs per Load List unless time does not permit) directly to the QEC using the normal FedEx Ground warranty parts return process. All rubber sleeves should be individually tagged with a warranty parts return barcode and bagged. Recommend that bulk sleeve shipments are placed into a single overpack bag and then packaged in a small box with a copy of the Load List affixed to the box. Failure to return the rubber sleeve within the pre-defined time period will result in a non-return part debit. If there are any questions pertaining to parts return, please submit a WSG Parts Disposition case online 14 P-RC-2022050015 Damage Code Operation Number Description Labor Time (hrs.) 42 900 05 02-0053 Check/test procedure A Check brake unit Includes: Remove rubber sleeve from brake unit and document test result This operation number can be used even if no rubber sleeve is present on the brake unit 0.2 02-0057 Pack up the rubber sleeve for the brake unit and dispatch 0.1 02-0088 Check/test procedure A1 Check barcode on brake unit Only if no rubber sleeve is present on the brake unit 0.1 End Here If Vehicle Passed Visual Inspection 02-0060 Scope of testing B Perform quick test (with XENTRY/DAS connected) 0.1 02-0054* Scope of testing B Check brake unit using XENTRY Diagnosis Findings: OK Includes: Connect/disconnect XENTRY 0.4 End Here If Vehicle Failed Visual Inspection & Passed XENTRY Check 02-0058* Scope of testing B Check brake unit using XENTRY Diagnosis Findings: not OK Includes: Connect/disconnect XENTRY 0.4 * Invoice only operation item 02-0054 or 02-0058. Invoicing both operation items is not permissible. * Invoice only operation item 02-0054 or 02-0058. Invoicing both operation items is not permissible. When using operation item 02-0054, the Certificate of Passed Initial Diagnostic Brake Test must be handed over to the customer which is located at the end of this document. Note: Always check ASRA for the current OP-Code times. Labor times are subject to change and updates may not be reflected in this document. 15 P-RC-2022050015 Warranty Information For vehicles impacted by the stop drive, MBUSA will allow for reimbursement of several associated ancillary costs as outlined below. These reimbursements are solely to support the implementation of this recall and to reduce the risk of customer inconveniences.  Damage code 99803 01 – Mobile inspection incentive o $150 per vehicle o Claimed separately and on top of the recall inspection  Damage code 99039 01 – Towing o Up to $125 per tow if arranged by customer or dealer outside of normal process o Invoice must be attached to claim o Please use normal CAC tow process whenever possible to alleviate reimbursement  Damage code 99046 01 – Vehicle storage o $15 per vehicle, per day for dealership onsite storage o Up to $56.25 per vehicle, per day for offsite storage o Invoice must be attached to claim o Submit every 30 days and then a final claim to reconcile  Damage code 99047 01 – Active vehicle care during vehicle storage o $300 per vehicle, one-time, for the entire period (i.e. wash, maintain battery, move to avoid flat spots and brake corrosion, etc.)  Damage code 99304 01 – Mobility solutions o Up to $2,400 per month for rental vehicle (up to $80/day), loaner ($80/day flat fee), taxi / rideshare services or use of public transportation o Dealers are encouraged to use loaner vehicles for customer requests. See sales NCU on changes to the CVP program and alternate mobility options. o Rental agreement, loaner agreement and/or invoice(s) must be attached to claim o Claims may be submitted on a monthly basis / multiple submissions allowed if needed This support is limited to the end of September 2022 16 P-RC-2022050015 Certificate of Passed Initial Diagnostic Brake Test Recall campaign – Inspect Brake Booster Vehicle identification number: Dear Valued Customer: Your vehicle’s brake booster has been inspected by your authorized Mercedes-Benz service facility for corrosion and functionality under MBUSA Recall Campaign number 2022050015 or 2022050014 bearing NHTSA ID# 22V315. The results of this initial inspection confirm that it is not immediately necessary to replace the brake booster in your vehicle. Therefore, your vehicle is no longer subject to the Stop Drive and may continue to be driven. A mobility solution is no longer necessary. Important! The brake booster may be subject to an additional inspection or a replacement brake booster, whichever comes first, within a period of 2 years from the date of the initial inspection. Mercedes-Benz USA will contact you again by mail to schedule the additional inspection at the appropriate time. If you sell your vehicle in the meantime, you must provide this document to the buyer. The additional inspection of the brake booster is very important to your vehicle’s safety. Therefore, it will be checked whether this has been carried out no later than 2 years after the first inspection. If this additional inspection was not carried out on your vehicle in time, you should stop operating the vehicle. If the described additional inspection is not completed, advanced corrosion in the joint area of the housing could potentially impair the function of the brake booster. This might increase the required brake pedal force and possibly extend the stopping distance. In very rare cases, it cannot be completely ruled out that mechanical damage to the brake booster might occur, whereby the connection between brake pedal and brake system would fail. In that condition, the vehicle would no longer be decelerated via the service brake which would increase the risk of a crash or injury. Date of inspection: Signature of Mercedes-Benz Dealer

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Recall Campaign Launch Notification – STOP DRIVE
Inspect Brake Booster

DATE: May 12, 2022

Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis PUBLIC IMPORTANT RECALL CAMPAIGN INFORMATION Please see the attached documents related to the campaign listed above. STOP DRIVE NOTIFICATION! Please note that all customer inquiries should be directed to the Customer Assistance Center at 1-888-548-8514. Sincerely, Gregory Gunther Department Manager, Vehicle Compliance & Analysis TO: Mercedes-Benz Dealer Principals, General Managers, Sales Managers, Service Managers, Parts Managers FROM: Gregory Gunther, Department Manager, Vehicle Compliance and Analysis, Engineering Services RE: Recall Campaign Launch Notification – STOP DRIVE Inspect Brake Booster MY06-12 GL-Class, ML-Class, R-Class (X164, W164, R251 platform) DATE: May 12, 2022 Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis PUBLIC Recall Campaign Initial Notification May 12, 2022 Campaign No. : NHTSA ID Campaign Desc. : Inspect Brake Booster TBD 22V315 22P2197512 22P2197514 This is to notify you of the Recall Campaign Launch to inspect the brake booster on 292,287 Model Year (“MY”) 2006-2012 GL-Class, ML-Class, and R-Class (X164, W164 and R251 platform) vehicles. The recall campaign will be visible on the www.safercar.gov website and may generate questions from customers. Affected VINs will be flagged in VMI as “PENDING” on May 12, 2022. Background Issue Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2006-2012 ML, GL (W164/X164 platform) and R-Class (R251 platform) vehicles, the function of the brake booster might be affected due to advanced corrosion in the joint area of its housing. After extended time in the field and in conjunction with prolonged water exposure, this corrosion might lead to a vacuum leak at the brake booster. If this were to occur, the brake force support might be reduced, leading to an increase in the brake pedal forces required to decelerate the vehicle, and/or increased stopping distances are possible. Additionally, in rare cases of very severe corrosion, it might be possible for a particularly strong or hard brake application to cause mechanical damage in the brake booster, whereby the connection between brake pedal and brake system would fail. In such a very rare case, it would not be possible to decelerate the vehicle via the brake pedal. The risk of a crash or injury would be increased. The function of the parking brake is not affected by this issue. Before the issue occurs, the driver might notice a change in the brake pedal feel and/or hissing/airflow noises when applying the brake pedal. What We’re Doing MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will remove the rubber sleeve from the brake booster housing, check the brake booster on the affected vehicles and, depending on the result of this inspection, replace as necessary. Until the inspection process is completed, affected customers will be instructed by the MBUSA recall owner notification letter to stop driving their vehicles at the time of recall launch. Parts The Inspection procedure is not available at this time. Vehicles Affected Vehicle Model Year(s) 2006-2012 Vehicle Model GL-Class, ML-Class, R-Class Vehicle Populations Total Recall Population 292,287 Total Vehicles in Dealer Inventory 0 Once the inspection process is available, the vehicles will be flagged as “OPEN” and Work Instructions will be available in Star TekInfo. Vehicles can then be inspected, and based on the results, continue to be driven (Inspection passed) or grounded (Inspection not passed) until such time parts are available. A follow-up campaign will be issued for any vehicle, which requires brake booster replacement. Additionally, given this notice, it is a violation of Federal Law for car rental companies to rent MY06-12 GL-Class, ML-Class, and R-Class vehicles covered by this notification until the vehicle has been repaired. Next Steps/Notes Customer Notification Timeline Owner notifications will be mailed on or before May 31, 2022. AOMS/SOMS AOMs – This recall may generate questions from your dealers. Please forward this notice to your dealers ASAP. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis PUBLIC FAQ’s 1. What is the recall about? a. The recall campaign is related to the brake booster housing. Specifically, advanced corrosion may have formed on the housing, which could lead to a vacuum leak and impairment to brake effectiveness. 2. Why are other models not included? a. Only ML, GL, and R class vehicles model year 2006-2012 are fitted with the affected brake booster utilizing a rubber sleeve, which can lead to advanced corrosion on the brake booster. Affected Vehicles have been identified within this recall. 3. Will owners receive complimentary (free) towing to the dealer? a. Customers are instructed not to drive their vehicle. Vehicle transport and mobility solutions will be offered at the time of recall launch. Further information to follow. 4. Will the dealer provide a loaner? a. Where available, a mobile inspection solution and alternate transportation will be provided for customers at the time of recall launch, which may include a loaner or rental vehicle. This service will be provided free of charge. 5. What types of repairs or replacements part(s) are needed? a. At this time the recall has not been launched. When the recall is launched and instructions have been provided to authorized Mercedes-Benz dealerships, affected vehicles will be inspected as a first step. After this inspection, the vehicle will be given 1 of 3 statuses. i. Inspected with no corrosion: The rubber sleeve will be removed. The vehicle can be driven with no further action or follow-up. ii. Inspected with advanced corrosion found: A brake efficacy test will be performed. A passed test ensures the tested brake booster can continue to be used and the vehicle driven up to a maximum of 2 years. A new notice will be provided at a later date to bring the vehicle to an authorized Mercedes-Benz dealership for further inspection and potential replacement of the brake booster. iii. Inspected with advanced corrosion and brake efficacy test does not pass: The vehicle will require the brake booster housing to be replaced when parts are available. Until then, the vehicle MUST NOT be driven. Rental Fleet Partners This recall may affect vehicles in your fleet. Please contact your respective MBUSA fleet representative for further information and next steps. For repairs, please contact your preferred MBUSA dealer. While we regret any inconvenience this may cause, MBUSA is determined to maintain a high level of vehicle quality and customer satisfaction. Please refer all customer inquiries to the Customer Assistance Center at 1-888-548-8514. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis PUBLIC 6. How long can Owners expect to be without their vehicle? a. The recall has not been launched. When launched, times will vary based on dealer appointment availability, inspection results, and part availability. Mercedes-Benz apologies for any inconvenience this may cause but know your safety is our top priority. 7. Where will the vehicle be stored? a. At this time, the vehicle should be stored at the owner’s residence until the recall has been launched. 8. Are Owners responsible for expenses related to the recall? a. No. Parts and labor will be provided free of charge. Alternate mobility solutions will be offered via MBUSA and/or an authorized Mercedes-Benz dealership starting at the time of recall launch. 9. I may have paid for repairs related to this recall. Will I receive reimbursement? a. The customer may be eligible to receive reimbursement. Requests for reimbursement may include parts, labor, fees and taxes. Reimbursement may be limited to the amount the repair would have cost if completed by an authorized Mercedes-Benz dealer. Details will be provided in the recall owner notification letter. If you no longer own the vehicle please call back in at the time of recall launch by watching the MBUSA website (www.mbusa.com/en/recall) VIN lookup tool under “My Vehicle Status”. 10. Can I continue to drive the car? a. MBUSA advises customers to stop driving the vehicle until the first inspection is performed. At this time, the inspection process is not yet available. Once available, customers will be notified by mail to schedule an appointment to have the inspection performed at an authorized dealer or have a mobile inspection performed at a location of their convenience. At that time alternate mobility solutions will be offered. 11. What is Mercedes-Benz going to do for Owners given this inconvenience? a. Mercedes-Benz is committed to the highest level of customer service and while we regret the inconvenience, the safety of our customers and the quality and integrity of their Mercedes-Benz vehicles is the driving factor for this recall. Mobility solutions will be offered for the duration the customer’s vehicle is affected under this “stop drive” recall at the time of recall launch. 12. I lost faith in the vehicle and demand MBUSA provide a replacement. a. Such customer inquiries will be evaluated on a case by case basis. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis PUBLIC 13. I read a media article that states I should stop driving my vehicle if I own one of the affected vehicles, what should I do? a. A VIN-based recall lookup tool on our MBUSA.com website offers a search feature that will indicate whether a vehicle has been subject to a safety recall. See www.mbusa.com/recall for more details. If your vehicle status is listed as “Recall Currently Pending” or “Open” once the recall is launched, the vehicle MUST NOT be driven until the inspection process is performed. 14. I just heard in the news that my vehicle might be on a stop drive. How do I find out if my vehicle is part of the recall? What do I do next? a. A VIN-based recall lookup tool on our MBUSA.com website offers a search feature that will indicate whether a vehicle has been subject to a safety recall. If your vehicle is included in the population, it must not be driven until the first inspection is performed. As of May 12th, the recall inspection is not available to be performed. Mobility solutions will be offered at the time of recall launch for the duration the vehicle is under “stop drive”.

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Updated Recall Campaign Launch Notification – STOP DRIVE
Inspect Brake Booster without Pedal Rework

UPDATE: September 23, 2022

Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis IMPORTANT RECALL CAMPAIGN UPDATE STOP DRIVE NOTIFICATION! Please see the attached documents related to the campaign listed above, which include new FAQs. Additionally, customer reminder re-notification letters were mailed August 31, 2022. Topic Page Launch NCU 2 Frequently Asked Questions (FAQ) a. What is this Recall b. Mobility c. Storage d. Reimbursement e. Miscellaneous 3 Work Instructions 8 Warranty Information & Parts Return Instructions 16 Certificate of Passed Initial Diagnostic Brake Test 18 Please note that all customer inquiries should be directed to the Customer Assistance Center at 1-888-548-8514. Sincerely, Gregory Gunther Department Manager, Vehicle Compliance & Analysis TO: Mercedes-Benz Dealer Principals, General Managers, Sales Managers, Service Managers, Parts Managers FROM: Gregory Gunther, Department Manager, Vehicle Compliance and Analysis, Engineering Services RE: Updated Recall Campaign Launch Notification – STOP DRIVE Inspect Brake Booster without Pedal Rework MY06-12 GL-Class, ML-Class, R-Class (X164, W164, 251 platform) UPDATE: September 23, 2022 Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis Recall Campaign Launch Notification September 23, 2022 Campaign No. : NHTSA ID Campaign Desc. : Inspect Brake Booster Without Pedal Rework 2022050015 22V315 22P4290005 This is to notify you of an update to the Recall Campaign Launch to inspect the brake booster on 278,173 Model Year (“MY”) 2006-2012 GL-Class, ML-Class, and R-Class (X164, W164 and 251 platform) vehicles. The recall campaign will be visible on the www.safercar.gov website and may generate questions from customers. Affected VINs were flagged in VMI as “OPEN” on May 28, 2022. Background Issue Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2006-2012 ML-Class, GL-Class (W164/X164 platform) and R-Class (251 platform) vehicles, the function of the brake booster might be affected due to advanced corrosion in the joint area of its housing. After extended time in the field and in conjunction with prolonged water exposure, this corrosion might lead to a vacuum leak at the brake booster. If this were to occur, the brake force support might be reduced, leading to an increase in the brake pedal forces required to decelerate the vehicle, and/or increased stopping distances. Additionally, in rare cases of very severe corrosion, it might be possible for a particularly strong or hard brake application to cause mechanical damage in the brake booster, whereby the connection between brake pedal and brake system would fail. In such a very rare case, it would not be possible to decelerate the vehicle via the brake pedal. The risk of a crash or injury would be increased. The function of the parking brake is not affected by this issue. Before the issue occurs, the driver might notice a change in the brake pedal feel and/or hissing/airflow noises when applying the brake pedal. What We’re Doing MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will remove the rubber sleeve from the brake booster housing, check the brake booster on the affected vehicles and, depending on the result of this inspection, replace as necessary. Affected customers will be mailed a recall owner notification letter and instructed to stop driving their vehicles until the inspection process is completed. Parts The inspection procedure is available and can be performed. Parts are not available at this time should they be needed. Once parts are available, certain customers will be informed via a second owner notification letter to have a final repair performed. Vehicles Affected Vehicle Model Year(s) 2006-2012 Vehicle Model GL-Class, ML-Class, R-Class Vehicle Populations Total Recall Population 278,173 Total Vehicles in Dealer Inventory 0 The vehicles will be flagged as “OPEN” and Work Instructions will be available in Star TekInfo. Customers are advised not to drive their vehicle until an inspection is performed. Based on the results, vehicles may continue to be driven if the inspection is passed, or must be grounded if the inspection is not passed. A follow-up campaign will be issued for any vehicle that requires a brake booster replacement. Until such time, a “Pending” campaign will be assigned to these vehicles to ensure vehicle status is reflected in the VIN look-up tools mentioned below. Additionally, given this notice, it is a violation of Federal Law for car rental companies to rent MY 06-12 GL-Class, ML-Class, and R-Class vehicles covered by this notification until the vehicle has been inspected and passed, or grounded until parts become available and the remedy performed. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis FAQs SUMMARY OF RECALL 1. What is the recall about? a. The recall campaign is related to the brake booster housing. Specifically, advanced corrosion may have formed on the housing, which could lead to a vacuum leak and impairment to brake effectiveness. 2. What’s the difference between Campaign 2022050014 and 2022050015. a. The inspection is the same, however, they have different damage codes. So please follow the instructions exactly for the respective campaign for your vehicle. 3. Can I continue to drive the car? a. Your safety is our highest priority. MBUSA advises customers to stop driving the vehicle until the first inspection is performed. Customers will be notified by first class mail to schedule an appointment to have the inspection performed by an authorized dealer. 4. Why are other models not included? a. Only ML- (MY2006 – 2011), GL- (MY2007 – 2012), and R- (MY2006 – 2012) Class vehicles are fitted with the affected brake booster utilizing a rubber sleeve. Other models are not fitted with this rubber sleeve. Affected vehicles have been identified within this recall. 5. What types of repairs or replacements part(s) are needed? a. Affected vehicles will be inspected as a first step. After this inspection, the vehicle will be given 1 of 3 statuses. A. Inspected with no ad