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March 25, 2026 Service bulletin

Customer concern for ESP/Brake or Steering yellow instrument cluster message AND C220564 in the N80...

Mercedes-Benz technical service bulletin LI46.10-P-079374 for 2022-2026 Mercedes-Benz C300, 2025-2026 Mercedes-Benz E350 and 2020-2026 Mercedes-Benz GLC 300 and others.

Bulletin number
LI46.10-P-079374
Component
Electrical system
Summary
Complaint Customer concern for ESP/Brake or Steering yellow instrument cluster message AND C220564 in the N80 Steering Column Control Module (Valeo Parts only). To check which supplier steering column module is present in the vehicle, see attachment "Supplier Identification". Cause Triggered due to communication related software timing. Remedy New software A2239026336. Update N80 (Steering Column Module) to at least target software A2239026336, clear codes, and ignition cycle the vehicle. If DTC is still present, re-flash N80 and clear DTC's. Is DTC still present? No --> Bus sleep the vehicle. After bus sleep check for DTC again. If DTC is not present, release vehicle. Yes --> Open a TIPS case to the Body/Chassis/Entertainment inbox.

Owners of these vehicles have filed 209 complaints in the electrical category.

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