Update Power Electronics Control Unit Software – Front Axle – 2022-2024 Mercedes-Benz EQB

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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 IMPORTANT SERVICE CAMPAIGN LAUNCH Please note that all customer inquiries should be directed to the Customer Assistance Center at 1-800-FOR-MERCEDES (1-800-367-6372). Sincerely, Gregory Gunther Senior Manager, Vehicle Compliance & Analysis TO: Mercedes-Benz Dealer Principals, General Managers, Sales Managers, Service Managers, Parts Managers FROM: Gregory Gunther, Senior Manager, Vehicle Compliance and Analysis, Engineering Services RE: Service Campaign Launch Notification Update Power Electronics Control Unit Software – Front Axle MY22-24 EQB (243 platform) DATE: November 17, 2023 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 Service Campaign Launch Notification November 17, 2023 Campaign No. : Campaign Desc. : Update Power Electronics Control Unit 2023110004 23P3490004 Software – Front Axle This is to notify you of the Service Campaign Launch to update the Power Electronics Control Unit Software – Front Axle, in 11,040 Model Year (“MY”) 2022-2024 EQB (243 platform) vehicles. The vehicles will be visible and flagged in VMI as “OPEN” on November 17, 2023. Background Issue Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has released a software update for certain MY 2022-2024 EQB (243 platform) vehicles that increases the robustness of the electronic drive unit (eATS), the battery management system (BMS), and DC charging (DCB). What We’re Doing MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will update the Power Electronics Control Unit software – Front Axle, on the affected vehicles. Parts The remedy is available and can be performed as necessary. Vehicles Affected Vehicle Model Year(s) 2022-24 Vehicle Model EQB Vehicle Populations Total Campaign Population 11,040 Next Steps/Notes Customer Notification Timeline Customer will receive a notification. AOMS/SOMS AOMs – This campaign may generate questions from your dealers. 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. 2 Campaign No. 2023110004, November 2023 TO: ALL MERCEDES-BENZ CENTERS SUBJECT: Model EQB (243 platform) Model Year 2022-2024 Update Power Electronics Control Unit Software – Front Axle Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has released a software update for certain MY 2022-2024 EQB (243 platform) vehicles that increases the robustness of the electronic drive unit (eATS), the battery management system (BMS), and DC charging (DCB). An authorized Mercedes-Benz dealer will update the Power Electronics Control Unit software. Prior to performing this Campaign: • VMI must 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 11,040 vehicles are affected. Order No. P-SC-2023110004 2 P-SC-2023110004 Update Power Electronics Control Unit Software – Front Axle • Always use the latest XENTRY Diagnosis software release with all available add-ons. • Follow the operation steps exactly as described in XENTRY Diagnosis. • Use a charger to ensure sufficient power supply to the vehicle’s on-board electrical system battery (greater than 12.5 V). • If XENTRY Diagnosis is already connected to the vehicle, start with Work Procedure – Step 2. If two or more software updates or SCN codings are performed during a single workshop visit, operation items 02-4762 and 02-5058 may be invoiced only on one of the workshop orders. Work Procedure 1. Connect XENTRY Diagnosis. 2. Update power electronics control unit software at front axle (SG-LE-VA). To do this, select menu item “Quick test view → Control unit N129/1 – power electronics of front axle (SG-LE-VA) → Adaptations → Control unit update → Update of control unit software”. Then follow the user guidance in XENTRY Diagnosis. 3. Disconnect XENTRY Diagnosis. __________________________________________________________________________________________________ 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.) 34 900 04 02-9334 Update power electronics control unit software at front axle (SG-LE-VA) (with XENTRY Diagnosis connected) 0.1 02-4762* Connect/disconnect diagnostic system (XENTRY Diagnosis) 0.1 02-5058* Connect/disconnect starter battery charger (with XENTRY Diagnosis connected) 0.1 * Invoice operation items only on one of the workshop orders, if two or more software updates or SCN codings are performed during a single workshop visit. Note: Always check Xentry Operation Time (XOT) 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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