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Service bulletin LI80.20-P-078308

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11029090
Published by NHTSA2026-02-28
Manufacturer's numberLI80.20-P-078308
Manufacturer's date2026-02-27
NHTSA componentSTRUCTURE:BODY

NHTSA's 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.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Body and frame

Trouble codes named

B1859, B185D, B185E, B1861, B1862

Vehicles listed
MERCEDES-BENZ AMG EQE2023 to 2025
MERCEDES-BENZ AMG EQE 4MATIC+2023 to 2025
MERCEDES-BENZ AMG EQE SUV 4MATIC2024 to 2025
MERCEDES-BENZ AMG EQS2022 to 2024
MERCEDES-BENZ AMG EQS 4MATIC+2023 to 2025
MERCEDES-BENZ AMG S 63 E 4MATIC+2023 to 2025
MERCEDES-BENZ E 3502024 to 2026
MERCEDES-BENZ E 350 4MATIC2024 to 2026
MERCEDES-BENZ E 4502024
MERCEDES-BENZ E 450 4MATIC2024 to 2026
MERCEDES-BENZ E 450 4MATIC ALL-TERRAIN2024 to 2026
MERCEDES-BENZ E53 E 4MATIC+2025
MERCEDES-BENZ E53 E 4MATIC+ ALL-TERRAIN2026
MERCEDES-BENZ EQE 350 4MATIC2023 to 2025
MERCEDES-BENZ EQE 350+2023 to 2025
MERCEDES-BENZ EQE 5002023 to 2025
MERCEDES-BENZ EQE 500 4MATIC2023 to 2025
MERCEDES-BENZ EQE SUV 350 4MATIC2023 to 2025
MERCEDES-BENZ EQE SUV 350+2023 to 2025
MERCEDES-BENZ EQE SUV 500 4MATIC2023 to 2025
MERCEDES-BENZ EQS 4502022
MERCEDES-BENZ EQS 450 4MATIC2023 to 2025
MERCEDES-BENZ EQS 450+2022 to 2025
MERCEDES-BENZ EQS 5802022 to 2024
MERCEDES-BENZ EQS 580 4MATIC2022 to 2025
MERCEDES-BENZ EQS SUV 450 4MATIC2023 to 2025
MERCEDES-BENZ EQS SUV 450+2023 to 2025
MERCEDES-BENZ EQS SUV 580 4MATIC2023 to 2025
MERCEDES-BENZ S 5002021
MERCEDES-BENZ S 5002023
MERCEDES-BENZ S 500 4MATIC2022 to 2025
MERCEDES-BENZ S 5802021
MERCEDES-BENZ S 5802023
MERCEDES-BENZ S 580 4MATIC2022 to 2025
MERCEDES-BENZ S 580 E2023
MERCEDES-BENZ S 580 E 4MATIC2023 to 2025
MERCEDES-MAYBACH EQS SUV 680 4MATIC2024 to 2025
MERCEDES-MAYBACH S 5802021
MERCEDES-MAYBACH S 580 4MATIC2022 to 2025
MERCEDES-MAYBACH S 6802023 to 2024
MERCEDES-MAYBACH S 680 4MATIC2022 to 2023
MERCEDES-MAYBACH S 680 4MATIC2025

Listing a model year does not mean every vehicle of it is concerned: the document says which.