Check the Power Steering Supply Connection – 2020 Mercedes-Benz CLA-Class

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Mercedes-Benz Part 573 Submission Original Submitted to Portal December 17, 2021 Chronology-Only section Supplement to Original Submission Chronology of Defect/Noncompliance Determination At the end of June 2020, MBAG launched an initial investigation after several internal vehicles experienced a loss of the electric power steering assist. MBAG immediately applied an additional control measure to ensure that the correct torque had been applied to the power supply connection for the electric power steering. In July 2020, however, additional cases of vehicles experiencing a loss of electric power steering assist were reported by the production plant. Accordingly, MBAG initiated further analysis into the issue. MBAG determined that melted adhesive loosened the power supply connection to the electric power steering in the analyzed vehicles. MBAG subsequently reviewed its supplier’s production process in detail to understand the point in the process at which the contamination may have occurred. As a result of this investigation, MBAG determined that the root cause of the issue was limited to a production deviation caused by an unauthorized rework at the supplier. An instruction regarding the correct production process was given to the supplier and visual inspection of all potentially affected vehicles in production was immediately implemented by MBAG in July 2020. Starting in July 2020, MBAG also analyzed the potential for vehicles in the field to have departed the production plant with potentially affected adhesive used in the power supply connection. In parallel, through the first quarter of 2021, MBAG evaluated production records to determine the population of potentially affected vehicles in the field. MBAG has not received any field complaints in the US regarding this issue, but has determined that there is one (1) potentially affected vehicle in the US. Further analyses were performed until July 2021 to assess the different possible contamination levels and its individual influence on the connection. In October 2021, MBAG also analyzed the adhesive aging processes to evaluate whether there could be potential long term impacts. On December 10, 2021, MBAG determined that a potential safety risk cannot be ruled out and decided to conduct a recall for the potentially affected vehicle.

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IMPORTANT SAFETY RECALL 2021120016 This notice applies to your vehicle, VIN: Mercedes-Benz USA, LLC January, 2022 2021 120016 Dear Mercedes-Benz Owner: Check the Power Steering Electrical Connection NHTSA Recall #21V989 • A remedy is available for your vehicle. • Schedule an appointment with your authorized Mercedes-Benz dealer as soon as possible. • This repair will be provided free of charge. This notice is sent to you in accordance with the requirements of 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 a certain Model Year (“MY”) 2020 CLA-Class vehicle. Our records indicate that your vehicle is included in the affected population. What is the CONCERN? What will your DEALER DO? What should YOU DO? To find the most convenient authorized Mercedes-Benz dealer from your smartphone, scan the QR code to the left Information for Owners In a certain Model Year (“MY”) 2020 CLA-Class vehicle, the power supply connection to the electric power steering might have been contaminated with melted adhesive. In this case, adhesive aging might lead to a loss of the adhesion strength and subsequently result in a loose connection which, in turn, might result in an interruption of the power supply. As a consequence, the power steering assist might fa il suddenly while driving, which could increase the risk of a crash. Should this occur, a red power steering warning message will be displayed in the instrument cluster and the driver might experience increased steering forces. An authorized Mercedes-Benz dealer will inspect the power steering supply connection on the affected vehicle and repair it, if necessary. This service will be provided free of charge. We are dedicated to always delivering the best customer experience, and respect for your time is a top priority. While the minimum repair time can be less than 1.5 hours, your dealer can provide you with a better estimate of the overall time for this service visit. As a matter of normal service process, an authorized Mercedes-Benz dealer will also check for other repair measures which might be applicable to your vehicle and this may increase the required working time. For additional information and to schedule an appointment, please contact your preferred authorized Mercedes-Benz dealer at your earliest convenience. To locate authorized dealers see www.MBUSA.com/recall. Please mention you are scheduling an appointment to check the power steering supply connection under Recall Campaign# 20211200 16. 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. Impacts from COVID-19: Your health and safety remain our top priority. The Mercedes-Benz dealerships remaining open for recall repairs and service are closely following the guidelines set forth by the CDC. Free Mobile Repair at your home or business as well as vehicle pick-up and delivery may be available. Your preferred authorized Mercedes-Benz dealer can confirm availability. In the event that you are no longer the vehicle owner, or have had a change of address, please complete the reverse side and return the updated information in the enclosed envelope. 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. 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, and whether that vehicle has had the free remedy performed. See www.mbusa.com/ recall. Should you have any questions or encounter any difficulty regarding this Recall Campaign, please contact an authorized Mercedes-Benz dealer. If for any reason a dealer is unable to remedy your situation, we are always happy to hear from you. Please contact us at 1-(800) FOR-MERCEDES (1-800-367-6372). 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. We apologize for any inconvenience this situation may cause you. Sincerely, Mercedes-Benz USA Mercedes-Benz USA, LLC A Daimler AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 Phone (770) 705-0600 IMPORTANT VIN: If for any reason YOU NO LONGER OWN THIS VEHICLE OR have a CHANGE OF ADDRESS, please COMPLETE THE SECTION BELOW, place in the ENCLOSED ENVELOPE, and DROP IN ANY MAIL BOX. If possible, provide the name and address of the present owner so that we may contact them. □ EXPORTED □ SOLD □ LEASE, VEHICLE RETURNED □ STOLEN □ SCRAPPED □ OTHER ___________ _ □ NEW OWNER INFORMATION □ MY NEW NAME OR ADDRESS IS: I I I I I I I I I I Last Name, First Name I I I I I I I I I I I ■ I I Street Apt I I ■ ■ I I I City State ZIP I I I I I I I I Email Address I I I I Phone (numbers only) Mobile (numbers only) Date Signature * * ** PLEASE DO NOT DETACH. RETURN COMPLETE LITTER **** DO NOT USE THE ENCLOSED ENVELOPE FOR OTHER CORRESPONDENCE

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Mercedes-Benz USA, LLC A Daimler AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis IMPORTANT RECALL CAMPAIGN UPDATE 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 1-800-FOR-MERCEDES. 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 Check the Power Steering Supply Connection MY20 CLA-Class (118 platform) DATE: 12/28/2021 Mercedes-Benz USA, LLC A Daimler AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis Recall Campaign Launch Notification December 28, 2021 Campaign No. : NHTSA ID Campaign Desc. : Check the Power Steering Supply Connection 2021120016 21V989 21P4694014 This is to notify you of the Recall Campaign Launch to check the power steering supply connection on 1 Model Year (“MY”) 2020 CLA-Class (118 platform) vehicle. 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 December 28, 2021. Background Issue Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on a certain Model Year (“MY”) 2020 CLA-Class (118 platform) vehicle, the power supply connection of the electric power steering might have been contaminated with melted adhesive. In this case, aging of the adhesive might lead to a loss of the adhesion strength and subsequently result in a loose connection. This in turn might result in an interruption of to the power supply. As a consequence, the power steering assist might fail spontaneously during driving which could increase the risk of a crash. When the issue occurs, the customer might notice increased steering forces and a red warning message regarding the power steering displayed in the instrument cluster. What We’re Doing MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will check the power steering supply connection on the affected vehicles and rework, if necessary. Parts The remedy is available and can be performed. Please note that the estimated replacement rate is 3%. Parts should only be ordered in the event a replacement is required. Vehicles Affected Vehicle Model Year(s) 2020 Vehicle Model CLA-Class Vehicle Populations Total Recall Population 1 Total Vehicles in Dealer Inventory 0 Given this notice, it is a violation of Federal law for a dealer to sell or lease any new MY20 CLA-Class vehicles in dealer inventory covered by this notification until the vehicle has been repaired. Once the remedy is available, the vehicles will be flagged as “OPEN” and Work Instructions will be available in Star TekInfo. Once the repair is complete the vehicle may be sold or leased. 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 new MY20 CLA-Class vehicles covered by this notification until the vehicle has been repaired. Next Steps/Notes Customer Notification Timeline Customer letters will be mailed on 1/11/2022. 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 1-800-FOR-MERCEDES. Campaign No. 2021120016, December 28th, 2021 TO: ALL MERCEDES-BENZ CENTERS SUBJECT: Model CLA-Class (118 platform) Model Year 2020 Check the Power Steering Supply Connection Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on a certain Model Year (“MY”) 2020 CLA-Class (118 platform) vehicle, the power supply connection of the electric power steering might have been contaminated with melted adhesive. In this case, aging of the adhesive might lead to a loss of the adhesion strength and subsequently result in a loose connection. This in turn might result in an interruption of to the power supply. As a consequence, the power steering assist might fail spontaneously during driving which could increase the risk of a crash. When the issue occurs, the customer might notice increased steering forces and a red warning message regarding the power steering displayed in the instrument cluster. An authorized Mercedes-Benz dealer will check the power steering supply connection on the affected vehicles and rework, if necessary. 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 1 vehicle are affected. Order No. P-RC-2021120016 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-2021120016 Check threaded connection on prefuse box, rework if necessary Model 118 Check/test procedure 1. Disconnect ground line of battery (AR54.10-P-0003MFA). 2. Remove cover from fuse box/prefuse box at front. For basic data, see AR54.15-P-1330MFA. 3. Remove cable ties and loosen all threaded connections individually in succession on prefuse box (marking, figure 1) Depending on the equipment variant, there may be more or fewer cables present (marking, figure 1). Figure 1 4. Check all cable connection and nuts for residual hot melt adhesive/contamination. Figure 2 not OK Figure 3 OK 3 P-RC-2021120016 Figure 2 not Ok. Figure 3 OK a. If one or more cable connections is contaminated with adhesive (Figure 2): Carry out work procedure. b. If no contamination is present (Figure 3): End measure. Work procedure 1. Remove contamination using a suitable tool (abrasive paper). Ensure that the contact surfaces between the nut/cable connection, and between the prefuse box and cable connection are completely clean and have a flat contact area. For basic data, see AR54.15-P-1330MFA. 2. Assemble in reverse order. All cable lug threaded connections must then be checked for the required torque. _________________________________________________ Warranty Information Damage Code Operation Number Description Labor Time (hrs.) 46 940 14 02-0850 Check threaded connection on prefuse box Includes: Disconnect/connect ground line of battery 0.6 02-0851 Rework threaded connection on prefuse box (after check) 0.1 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.

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 21V-989 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Mercedes-Benz USA, LLC Submission Date : DEC 17, 2021 NHTSA Recall No. : 21V-989 Manufacturer Recall No. : NR Manufacturer Information : Manufacturer Name : Mercedes-Benz USA, LLC Address : 13470 International Parkway Jacksonville FL 32218 Company phone : 1-877-496-3691 Population : Number of potentially involved : 1 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2020-2020 Mercedes-Benz CLA250 Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS Descriptive Information : Mercedes-Benz 2020 CLA-Class 1 Vehicle The recall population was determined through production records. Vehicles outside of the recall population have the power steering assist power supply adhesion according to current production specifications. Production Dates : JUL 01, 2020 – JUL 01, 2020 VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect : Description of the Defect : Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on a certain Model Year (“MY”) 2020 CLA-Class (118 platform) vehicle, the power supply connection of the electric power steering might have been contaminated with melted adhesive. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : In this case, aging of the adhesive might lead to a loss of the adhesion strength and subsequently result in a loose connection. This in turn might result in an interruption of to the power supply. As a consequence, the power steering assist might fail spontaneously during driving which could increase the risk of a crash. Description of the Cause : Due to a production deviation at a supplier, a certain batch of power supply connections to the electric power steering system might be contaminated. Identification of Any Warning When the issue occurs, the customer might notice increased steering forces and a red warning message regarding the power steering displayed in the Part 573 Safety Recall Report 21V-989 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 that can Occur : instrument cluster. Involved Components : Component Name 1 : Steering wiring harness Component Description : Steering wiring harness Component Part Number : A1775409637 Component Name 2 : Cable set to the fan Component Description : Cable set to the fan Component Part Number : A1775404928 Supplier Identification : Component Manufacturer Name : Mercedes-Benz AG Address : NR Foreign States Country : Germany Chronology : At the end of June 2020, MBAG launched an initial investigation after several internal vehicles experienced a loss of the electric power steering assist. MBAG immediately applied an additional control measure to ensure that the correct torque had been applied to the power supply connection for the electric power steering. In July 2020, however, additional cases of vehicles experiencing a loss of electric power steering assist were reported by the production plant. Accordingly, MBAG initiated further analysis into the issue. MBAG determined that melted adhesive loosened the power supply connection to the electric power steering in the analyzed vehicles. MBAG subsequently reviewed its supplier’s production process in detail to understand the point in the process at which the contamination may have occurred. As a result of this investigation, MBAG determined that the root cause of the issue was limited to a production deviation caused by an unauthorized rework at the supplier. An instruction regarding the correct production process was given to the supplier and visual inspection of all potentially affected vehicles in production was immediately implemented by MBAG in July 2020. Starting in July 2020, MBAG also analyzed the potential for vehicles in the field to have departed the production plant with potentially affected adhesive used in the power supply connection. In parallel, through the first Part 573 Safety Recall Report 21V-989 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 quarter of 2021, MBAG evaluated production records to determine the population of potentially affected vehicles in the field. MBAG has not received any field complaints in the US regarding this issue, but has determined that there is one (1) potentially affected vehicle in the US. Further analyses were performed until July 2021 to assess the different possible contamination levels and its individual influence on the connection. Please see Chronology Supplement. Description of Remedy : Description of Remedy Program : An authorized Mercedes-Benz dealer will check the connection on the affected vehicles and rework, if necessary. Pursuant to 49 C.F.R. § 577.11(e), MBUSA does not plan to provide notice about pre-notice reimbursement to owners since none of the involved vehicles would have been previously subject to the condition described and all remain covered under the new vehicle warranty. How Remedy Component Differs from Recalled Component : Connection without adhesive contamination Remedy Part Number: Steering wiring harness A1775409637 Cable set to the fan A1775404928 Identify How/When Recall Condition was Corrected in Production : Instruction to the responsible staff of our supplier ensures that this issue can no longer occur from July 09, 2020 onwards. Recall Schedule : Description of Recall Schedule : Dealers will be notified of the pending voluntary recall campaign on December 24, 2021. Owners will be notified of the voluntary recall campaign before February 15, 2021. A copy of all communications will be provided when available. Planned Dealer Notification Date : DEC 27, 2021 – NR Planned Owner Notification Date : DEC 15, 2022 – NR * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 21V-989 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Mercedes-Benz USA, LLC Submission Date : JAN 24, 2022 NHTSA Recall No. : 21V-989 Manufacturer Recall No. : 2021120016 Manufacturer Information : Manufacturer Name : Mercedes-Benz USA, LLC Address : 13470 International Parkway Jacksonville FL 32218 Company phone : 1-877-496-3691 Population : Number of potentially involved : 1 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2020-2020 Mercedes-Benz CLA250 Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS Descriptive Information : Mercedes-Benz 2020 CLA-Class 1 Vehicle The recall population was determined through production records. Vehicles outside of the recall population have the power steering assist power supply adhesion according to current production specifications. Production Dates : JUL 01, 2020 – JUL 01, 2020 VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect : Description of the Defect : Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on a certain Model Year (“MY”) 2020 CLA-Class (118 platform) vehicle, the power supply connection of the electric power steering might have been contaminated with melted adhesive. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : In this case, aging of the adhesive might lead to a loss of the adhesion strength and subsequently result in a loose connection. This in turn might result in an interruption of to the power supply. As a consequence, the power steering assist might fail spontaneously during driving which could increase the risk of a crash. Description of the Cause : Due to a production deviation at a supplier, a certain batch of power supply connections to the electric power steering system might be contaminated. Identification of Any Warning When the issue occurs, the customer might notice increased steering forces and a red warning message regarding the power steering displayed in the Part 573 Safety Recall Report 21V-989 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 that can Occur : instrument cluster. Involved Components : Component Name 1 : Steering wiring harness Component Description : Steering wiring harness Component Part Number : A1775409637 Component Name 2 : Cable set to the fan Component Description : Cable set to the fan Component Part Number : A1775404928 Supplier Identification : Component Manufacturer Name : Aptiv Services Deutschland GmbH Address : Am Technologierpark 1 Wuppertal Foreign States 42119 Country : Germany Chronology : At the end of June 2020, MBAG launched an initial investigation after several internal vehicles experienced a loss of the electric power steering assist. MBAG immediately applied an additional control measure to ensure that the correct torque had been applied to the power supply connection for the electric power steering. In July 2020, however, additional cases of vehicles experiencing a loss of electric power steering assist were reported by the production plant. Accordingly, MBAG initiated further analysis into the issue. MBAG determined that melted adhesive loosened the power supply connection to the electric power steering in the analyzed vehicles. MBAG subsequently reviewed its supplier’s production process in detail to understand the point in the process at which the contamination may have occurred. As a result of this investigation, MBAG determined that the root cause of the issue was limited to a production deviation caused by an unauthorized rework at the supplier. An instruction regarding the correct production process was given to the supplier and visual inspection of all potentially affected vehicles in production was immediately implemented by MBAG in July 2020. Starting in July 2020, MBAG also analyzed the potential for vehicles in the field to have departed the production plant with potentially affected adhesive used in the power supply connection. In parallel, through the first Part 573 Safety Recall Report 21V-989 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 quarter of 2021, MBAG evaluated production records to determine the population of potentially affected vehicles in the field. MBAG has not received any field complaints in the US regarding this issue, but has determined that there is one (1) potentially affected vehicle in the US. Further analyses were performed until July 2021 to assess the different possible contamination levels and its individual influence on the connection. Please see Chronology Supplement. Description of Remedy : Description of Remedy Program : An authorized Mercedes-Benz dealer will check the connection on the affected vehicles and rework, if necessary. Pursuant to 49 C.F.R. § 577.11(e), MBUSA does not plan to provide notice about pre-notice reimbursement to owners since none of the involved vehicles would have been previously subject to the condition described and all remain covered under the new vehicle warranty. How Remedy Component Differs from Recalled Component : Connection without adhesive contamination Remedy Part Number: Steering wiring harness A1775409637 Cable set to the fan A1775404928 Identify How/When Recall Condition was Corrected in Production : Instruction to the responsible staff of our supplier ensures that this issue can no longer occur from July 09, 2020 onwards. Recall Schedule : Description of Recall Schedule : Dealers will be notified of the pending voluntary recall campaign on December 28, 2021. Owners will be notified of the voluntary recall campaign on January 21, 2022. A copy of all communications will be provided when available. Planned Dealer Notification Date : DEC 28, 2021 – NR Planned Owner Notification Date : JAN 21, 2022 – NR * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 21V-989 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Mercedes-Benz USA, LLC Submission Date : DEC 29, 2021 NHTSA Recall No. : 21V-989 Manufacturer Recall No. : 2021120016 Manufacturer Information : Manufacturer Name : Mercedes-Benz USA, LLC Address : 13470 International Parkway Jacksonville FL 32218 Company phone : 1-877-496-3691 Population : Number of potentially involved : 1 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2020-2020 Mercedes-Benz CLA250 Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS Descriptive Information : Mercedes-Benz 2020 CLA-Class 1 Vehicle The recall population was determined through production records. Vehicles outside of the recall population have the power steering assist power supply adhesion according to current production specifications. Production Dates : JUL 01, 2020 – JUL 01, 2020 VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect : Description of the Defect : Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on a certain Model Year (“MY”) 2020 CLA-Class (118 platform) vehicle, the power supply connection of the electric power steering might have been contaminated with melted adhesive. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : In this case, aging of the adhesive might lead to a loss of the adhesion strength and subsequently result in a loose connection. This in turn might result in an interruption of to the power supply. As a consequence, the power steering assist might fail spontaneously during driving which could increase the risk of a crash. Description of the Cause : Due to a production deviation at a supplier, a certain batch of power supply connections to the electric power steering system might be contaminated. Identification of Any Warning When the issue occurs, the customer might notice increased steering forces and a red warning message regarding the power steering displayed in the Part 573 Safety Recall Report 21V-989 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 that can Occur : instrument cluster. Involved Components : Component Name 1 : Steering wiring harness Component Description : Steering wiring harness Component Part Number : A1775409637 Component Name 2 : Cable set to the fan Component Description : Cable set to the fan Component Part Number : A1775404928 Supplier Identification : Component Manufacturer Name : Aptiv Services Deutschland GmbH Address : Am Technologierpark 1 Wuppertal Foreign States 42119 Country : Germany Chronology : At the end of June 2020, MBAG launched an initial investigation after several internal vehicles experienced a loss of the electric power steering assist. MBAG immediately applied an additional control measure to ensure that the correct torque had been applied to the power supply connection for the electric power steering. In July 2020, however, additional cases of vehicles experiencing a loss of electric power steering assist were reported by the production plant. Accordingly, MBAG initiated further analysis into the issue. MBAG determined that melted adhesive loosened the power supply connection to the electric power steering in the analyzed vehicles. MBAG subsequently reviewed its supplier’s production process in detail to understand the point in the process at which the contamination may have occurred. As a result of this investigation, MBAG determined that the root cause of the issue was limited to a production deviation caused by an unauthorized rework at the supplier. An instruction regarding the correct production process was given to the supplier and visual inspection of all potentially affected vehicles in production was immediately implemented by MBAG in July 2020. Starting in July 2020, MBAG also analyzed the potential for vehicles in the field to have departed the production plant with potentially affected adhesive used in the power supply connection. In parallel, through the first Part 573 Safety Recall Report 21V-989 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 quarter of 2021, MBAG evaluated production records to determine the population of potentially affected vehicles in the field. MBAG has not received any field complaints in the US regarding this issue, but has determined that there is one (1) potentially affected vehicle in the US. Further analyses were performed until July 2021 to assess the different possible contamination levels and its individual influence on the connection. Please see Chronology Supplement. Description of Remedy : Description of Remedy Program : An authorized Mercedes-Benz dealer will check the connection on the affected vehicles and rework, if necessary. Pursuant to 49 C.F.R. § 577.11(e), MBUSA does not plan to provide notice about pre-notice reimbursement to owners since none of the involved vehicles would have been previously subject to the condition described and all remain covered under the new vehicle warranty. How Remedy Component Differs from Recalled Component : Connection without adhesive contamination Remedy Part Number: Steering wiring harness A1775409637 Cable set to the fan A1775404928 Identify How/When Recall Condition was Corrected in Production : Instruction to the responsible staff of our supplier ensures that this issue can no longer occur from July 09, 2020 onwards. Recall Schedule : Description of Recall Schedule : Dealers will be notified of the pending voluntary recall campaign on December 28, 2021. Owners will be notified of the voluntary recall campaign on January 11, 2022. A copy of all communications will be provided when available. Planned Dealer Notification Date : DEC 28, 2021 – NR Planned Owner Notification Date : JAN 11, 2022 – NR * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 21V-989 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Mercedes-Benz USA, LLC Submission Date : DEC 22, 2021 NHTSA Recall No. : 21V-989 Manufacturer Recall No. : NR Manufacturer Information : Manufacturer Name : Mercedes-Benz USA, LLC Address : 13470 International Parkway Jacksonville FL 32218 Company phone : 1-877-496-3691 Population : Number of potentially involved : 1 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2020-2020 Mercedes-Benz CLA250 Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS Descriptive Information : Mercedes-Benz 2020 CLA-Class 1 Vehicle The recall population was determined through production records. Vehicles outside of the recall population have the power steering assist power supply adhesion according to current production specifications. Production Dates : JUL 01, 2020 – JUL 01, 2020 VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect : Description of the Defect : Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on a certain Model Year (“MY”) 2020 CLA-Class (118 platform) vehicle, the power supply connection of the electric power steering might have been contaminated with melted adhesive. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : In this case, aging of the adhesive might lead to a loss of the adhesion strength and subsequently result in a loose connection. This in turn might result in an interruption of to the power supply. As a consequence, the power steering assist might fail spontaneously during driving which could increase the risk of a crash. Description of the Cause : Due to a production deviation at a supplier, a certain batch of power supply connections to the electric power steering system might be contaminated. Identification of Any Warning When the issue occurs, the customer might notice increased steering forces and a red warning message regarding the power steering displayed in the Part 573 Safety Recall Report 21V-989 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 that can Occur : instrument cluster. Involved Components : Component Name 1 : Steering wiring harness Component Description : Steering wiring harness Component Part Number : A1775409637 Component Name 2 : Cable set to the fan Component Description : Cable set to the fan Component Part Number : A1775404928 Supplier Identification : Component Manufacturer Name : Aptiv Services Deutschland GmbH Address : Am Technologierpark 1 Wuppertal Foreign States 42119 Country : Germany Chronology : At the end of June 2020, MBAG launched an initial investigation after several internal vehicles experienced a loss of the electric power steering assist. MBAG immediately applied an additional control measure to ensure that the correct torque had been applied to the power supply connection for the electric power steering. In July 2020, however, additional cases of vehicles experiencing a loss of electric power steering assist were reported by the production plant. Accordingly, MBAG initiated further analysis into the issue. MBAG determined that melted adhesive loosened the power supply connection to the electric power steering in the analyzed vehicles. MBAG subsequently reviewed its supplier’s production process in detail to understand the point in the process at which the contamination may have occurred. As a result of this investigation, MBAG determined that the root cause of the issue was limited to a production deviation caused by an unauthorized rework at the supplier. An instruction regarding the correct production process was given to the supplier and visual inspection of all potentially affected vehicles in production was immediately implemented by MBAG in July 2020. Starting in July 2020, MBAG also analyzed the potential for vehicles in the field to have departed the production plant with potentially affected adhesive used in the power supply connection. In parallel, through the first Part 573 Safety Recall Report 21V-989 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 quarter of 2021, MBAG evaluated production records to determine the population of potentially affected vehicles in the field. MBAG has not received any field complaints in the US regarding this issue, but has determined that there is one (1) potentially affected vehicle in the US. Further analyses were performed until July 2021 to assess the different possible contamination levels and its individual influence on the connection. Please see Chronology Supplement. Description of Remedy : Description of Remedy Program : An authorized Mercedes-Benz dealer will check the connection on the affected vehicles and rework, if necessary. Pursuant to 49 C.F.R. § 577.11(e), MBUSA does not plan to provide notice about pre-notice reimbursement to owners since none of the involved vehicles would have been previously subject to the condition described and all remain covered under the new vehicle warranty. How Remedy Component Differs from Recalled Component : Connection without adhesive contamination Remedy Part Number: Steering wiring harness A1775409637 Cable set to the fan A1775404928 Identify How/When Recall Condition was Corrected in Production : Instruction to the responsible staff of our supplier ensures that this issue can no longer occur from July 09, 2020 onwards. Recall Schedule : Description of Recall Schedule : Dealers will be notified of the pending voluntary recall campaign on December 24, 2021. Owners will be notified of the voluntary recall campaign before February 15, 2021. A copy of all communications will be provided when available. Planned Dealer Notification Date : DEC 27, 2021 – NR Planned Owner Notification Date : DEC 15, 2022 – NR * NR – Not Reported

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