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September 5, 2025 Service bulletin

Complaint One of the flush door handles (Also referred to as Seamless Door Handles) does not...

Mercedes-Benz technical service bulletin LI80.20-P-078308 for 2023-2025 Mercedes-Benz E350, 2023-2024 Mercedes-Benz EQS 450 and 2023-2024 Mercedes-Benz E 450 and others.

Bulletin number
LI80.20-P-078308
Component
Electrical system
Summary
Complaint One of the flush door handles (Also referred to as Seamless Door Handles) does not extend/retract (and/or) the KeylessGo sensor surfaces do not respond. Cause Multiple possible causes can be inferred from the table, see remedy (additionally as reference table in attachment). Remedy 1) KeylessGo sensor surfaces do not respond. Door handles can extend/retract if the key is used for locking/unlocking. No particular fault code. Perform an A17/x (handle controller) reset via XENTRY (for example see attachment - under actuations tab for A17/x controller) -> add-on is available (add-on 32204 for XENTRY version 06/25) Please use one of the following damage codes: 8213H; 82197; 8213K; 82198 2) Surface-flush door handle fails to retract and/or extend One or more of the following fault codes are current and stored: B185D96; B185E96; B186196; B186296 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 door handle 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: 80A0F; 80N0F; 80N0G; 80A0G 3) Surface-flush door handle fails to retract and/or extend One or more of the following fault codes are current and stored: B185D96; B185E96; B186196; B186296 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: 80A0F; 80N0F; 80N0G; 80A0G 4) Surface-flush door handle fails to retract and/or extend The fault code B185911 is stored in the DCU (N69/X). The motor resistance is too low. Bearing bracket must be replaced. Please use one of the following damage codes: 80A0D; 80N0D; 80N0E; 80A0E If after the remedy points above are performed and the problem is still present, then please create a TIPS case and direct to the Body/Chassis/Entertainment inbox. Include your control unit logs, photos/videos, and quick tests to show diagnosis performed thus far. -> In this case, store the damaged parts for further analyses.

Owners of these vehicles have filed 62 complaints in the electrical category.

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