Retrofit HERMES Control Unit – 2021-2022 Mercedes-Benz CLA-Class, A-Class, CLS-Class, E-Class, GLA-Class, GLB-Class, GLC-Class, & GLE-Class

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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 NEW SERVICE CAMPAIGN LAUNCH INFORMATION Please note that all customer inquiries should be directed to the Customer Assistance Center at 1-800-FORMERCEDES. 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: Service Campaign Launch Notification Retrofit HERMES Control Unit MY21-22 Various Models DATE: April 29, 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 Service Campaign Launch Notification April 29, 2022 Campaign No. : Campaign Desc. : Retrofit HERMES Control Unit 2022030017 22P0699001 This is to notify you of the Service Campaign Launch to retrofit the HERMES control unit in 17,546 Model Year (“MY”) 2021-2022 CLAClass, A-Class, CLS-Class, E-Class, GLA-Class, GLB-Class, GLC-Class, and GLE-Class (118, 177, 213, 238, 247, 253, and 257 platform) vehicles. The vehicles will be visible and flagged in VMI as “OPEN” on April 29, 2022. Background Issue Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz, has determined that certain MY 2021-2022 CLA-Class, A-Class, CLS-Class, E-Class, GLA-Class, GLB-Class, GLC-Class, GLEClass, and (118, 177, 213, 238, 247, 253, and 257 platform) vehicles were manufactured without the HERMES control unit, as disclosed to the vehicle purchaser at the time of sale. As a result, the Mercedes Me Connect services including the emergency call (“eCall”) function are currently not available. What We’re Doing MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will retrofit the HERMES control unit to the vehicle and enable the Mercedes Me Connect functions on applicable vehicles. Parts The Remedy is available and can be performed as necessary. Parts will be VOR Only. Vehicles Affected Vehicle Model Year(s) 2021-2022 Vehicle Model CLA-Class, A-Class, CLS-Class, E-Class, GLA-Class, GLB-Class, GLC-Class, and GLE-Class Vehicle Populations Total Campaign Population 17,546 Next Steps/Notes AOMS/SOMS AOMs – This campaign may generate questions from your dealers. Customer Notification Timeline Customer letters will be mailed on approximately May 20, 2022. 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. 2022030017, April 2022 TO: ALL MERCEDES-BENZ CENTERS SUBJECT: Various Models Model Year 2021-2022 Retrofit HERMES Control Unit Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz, has determined that on certain MY 2021-2022 CLA-Class, A-Class, CLS-Class, E-Class, GLA-Class, GLB-Class, GLC-Class, and GLEClass (118, 177, 213, 238, 247, 253, and 257 platform) vehicles, without the HERMES control unit, as disclosed at the time of sale to the vehicle purchaser. As a result, the Mercedes Me Connect services including the emergency call (“eCall”) function are currently not available. An authorized Mercedes-Benz dealer will retrofit the HERMES control unit to the vehicle and enable the Mercedes Me Connect functions on applicable vehicles. 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 17,546 vehicles are affected. Order No. P-SC-2022030017 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-SC-2022030017 Retrofit HERMES control unit  Code 1B4 corresponds to COMMUNICATION MODULE, NORTH AMERICA VERSION.  Ensure use of XENTRY Diagnosis version 09/2021 with add-on 20157 or higher XENTRY Diagnosis version.  Before starting the work procedure, install all the add-ons that are updated daily in XENTRY Diagnosis.  Make sure to follow the operation steps exactly as described in XENTRY Diagnosis.  Use a battery charger to ensure sufficient power supply of the vehicle on-board electrical system battery (greater than 12.5 V). If two or more software updates or SCN codings are performed during a workshop visit, the operation items 02-4762 and 02-5058 may only be invoiced once for each workshop order. Work Procedure 1. Retrofit HERMES control unit. For basic data, see AR82.95-P-0019MFA for model 118, 177 and 247. For basic data, see AR82.95-P-0019LWE for model 213 and 238. For basic data, see AR82.95-P-0019LWX for model 253. For basic data, see AR82.95-P-0019FR for model 257. Work procedure is identical to “Replace HERMES control unit”. The old control unit can be disposed of. 2. Connect XENTRY Diagnosis with USB cable. 3. Perform commissioning in control unit for telematics services (HERMES). To do this, select menu item “Quick test view – N112/9 control unit for telematics services (HERMES) – Adaptations – Teach-in processes – Retrofitting of control unit ‘N112/9 control unit for telematics services (HERMES)'”. Then follow the user guidance in XENTRY Diagnosis. Several control units will be coded! Clear out fault code memory after coding. 4. Disconnect XENTRY Diagnosis. 5. Remove masking sticker from SOS button of overhead control panel (figure 1). 3 P-SC-2022030017 Figure 1 6. Perform function test. 6.1. Switch ignition to position 1. To do so, press start button once without touching the brake pedal. 6.2. Set head unit to radio menu and check whether SOS NOT READY appears (figure 2). 6.3. Switch ignition to position 2. To do so, press start button a second time without touching the brake pedal. 6.4. Check whether SOS NOT READY subsequently goes out automatically (figure 2). Figure 2 7. Remove supplement booklet ”Notes on vehicles without communication module” (A 000 584 50 15) if present. 8. Activate Mercedes me connect services if the vehicle is customer owned. It is recommended the Mercedes me connect services should be activated by the sales department using the Mmc Activation Best Practices. A separate NCU communication will be sent to the Sales Department informing them about the benefits of activating services. 4 P-SC-2022030017 Primary Parts Information Qty. Part Name Part Number As required (1) HERMES control unit, NAFTA (code 1B4) A 238 900 91 01 Small parts such as screws/bolts, lock nuts, sealing rings, cable ties, fluids, sealant, etc. are not listed in the parts list. The required small parts are taken into account in the budgeting. Note: The following allowable labor operation should be used when submitting a warranty claim for this repair: Warranty Information Damage Code Operation Number Description Labor Time (hrs.) 06 990 01 02-0399 Retrofit HERMES control unit Includes: Perform commissioning Model 118, 177, 247 and 257 0.7 02-0399 Retrofit HERMES control unit Includes: Perform commissioning Model 213 and 238 0.8 02-0399 Retrofit HERMES control unit Includes: Perform commissioning Model 253 0.9 02-4762* Connect/disconnect diagnostic system (XENTRY Diagnosis) 0.1 02-5058* Connect/disconnect starter battery charger (with XENTRY Diagnosis connected) 0.1 * Operation item may only be invoiced once for each workshop order! 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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