{"nhtsa_id":11029090,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-02-28","date":"2026-02-27","document_id":"LI80.20-P-078308","mfr_campaign":null,"replaces":null,"component":"STRUCTURE:BODY","mfr_system":null,"summary":"Complaint Please perform the corresponding remedy measures (points 1-4) depending on the determined problem (points 1-4): 1. KeylessGo sensor surfaces do not respond. Door handles can extend/retract if unlocked/locked using the key. No particular fault code. 2. Flush-fitting door handle does not extend and/or retract. One or more of the following fault codes are current and stored: B185D96; B185E96; B186196; B186296 The following values are present in the control unit log (A17/x): Motor_bridge_connection_fatal_error = True OR Motor_bridge_wrong_direction_fatal_error = True (see attachment for example) 3. Flush-fitting door handle does not extend and/or retract. One or more of the following fault codes are current and stored: B185D96; B185E96; B186196; B186296 The following values are present in the control unit log (A17/x): Motor_init_error_for_sensors = True (for example, see attachment) 4. Flush-fitting door handle does not extend and/or retract. The fault code B185911 is stored in the DCU (N69/X). Cause 1. Software bug. 2. Software robustness. 3. Software robustness. 4. The resistance of the motor is outside of tolerance. Remedy Please perform the corresponding remedy measures (points 1-4) depending on the determined problem (points 1-4): 1. Perform a reset of the corresponding 'KEYLESS GO' door handle control unit (A17/x) via XENTRY (for example see attachment) add-on is available (add-on 32204 for XENTRY version 06/25) Please use one of the following damage codes: 8213H73; 8219773; 8213K73; 8219873 2. A control unit event log for the component part concerned (A17/x) must be created and the following values checked in the \"Component Errors\" section: Motor_bridge_connection_fatal_error = True (for example, see attachment) OR Motor_bridge_wrong_direction_fatal_error = True (for example, see attachment) If one of the values is \"True\": Perform an SCN coding on the corresponding 'KEYLESS GO' door handle control unit (A17/x) via XENTRY add-on is available (add-on 32280 for XENTRY version 06/25) The faults must be deleted after SCN coding. Please use one of the following damage codes: 8213H73; 8219773; 8213K73; 8219873 3. A control unit event log for the component part concerned (A17/x) must be created and the following value checked in the \"Component Errors\" section: Motor_init_error_for_sensors = True (for example, see attachment) If the value is \"True\": Bearing bracket must be replaced. Please use one of the following damage codes: 80A0D73; 80N0D73; 80N0E73; 80A0E73 4. The motor resistance is too low. Bearing bracket must be replaced. Please use one of the following damage codes: 80A0D73; 80N0D73; 80N0E73; 80A0E73 Please note that other published GI documents may also be valid for assessing the problem. For example: \"LI72.10-P-074316 Flush-Mounted Door Handle Jams When It Is Pulled Out\". If after the remedy points above are performed, the problem is still present, please submit a TIPS case to the PTS-Body/ Chassis/Entertainment inbox. → In this case, store the damaged parts for further analyses.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11029090-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11029090-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11029090","components":[{"id":"structure-body","name":"Body and frame","parent":null}],"codes":["B1859","B185D","B185E","B1861","B1862"],"topics":[],"vehicles":[{"make":"MERCEDES-BENZ","model":"AMG EQE","year_from":2023,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG EQE 4MATIC+","year_from":2023,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG EQE SUV 4MATIC","year_from":2024,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG 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4MATIC+ ALL-TERRAIN","year_from":2026,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"EQE 350 4MATIC","year_from":2023,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"EQE 350+","year_from":2023,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"EQE 500","year_from":2023,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"EQE 500 4MATIC","year_from":2023,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"EQE SUV 350 4MATIC","year_from":2023,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"EQE SUV 350+","year_from":2023,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"EQE SUV 500 4MATIC","year_from":2023,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"EQS 450","year_from":2022,"year_to":2022,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"EQS 450 4MATIC","year_from":2023,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"EQS 450+","year_from":2022,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"EQS 580","year_from":2022,"year_to":2024,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"EQS 580 4MATIC","year_from":2022,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"EQS SUV 450 4MATIC","year_from":2023,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"EQS SUV 450+","year_from":2023,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"EQS SUV 580 4MATIC","year_from":2023,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"S 500","year_from":2021,"year_to":2021,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"S 500","year_from":2023,"year_to":2023,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"S 500 4MATIC","year_from":2022,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"S 580","year_from":2021,"year_to":2021,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"S 580","year_from":2023,"year_to":2023,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"S 580 4MATIC","year_from":2022,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"S 580 E","year_from":2023,"year_to":2023,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"S 580 E 4MATIC","year_from":2023,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-MAYBACH","model":"EQS SUV 680 4MATIC","year_from":2024,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-MAYBACH","model":"S 580","year_from":2021,"year_to":2021,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-MAYBACH","model":"S 580 4MATIC","year_from":2022,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-MAYBACH","model":"S 680","year_from":2023,"year_to":2024,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-MAYBACH","model":"S 680 4MATIC","year_from":2022,"year_to":2023,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-MAYBACH","model":"S 680 4MATIC","year_from":2025,"year_to":2025,"match":null,"vehicle_ids":[]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}