MERCEDES-BENZ

LI82.95-P-074845

2022-05-16 · NHTSA 10213054

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Manufacturer summary

Original wording in English

Complaint The "SOS nonfunctional" message displays intermittently in the instrument cluster of the vehicle. The fault code B129C00 is stored in the control unit log. The message usually occurs after the vehicle has been non-operational for an extended period of time; then the message disappears after a few minutes. The emergency call system is functioning when tested. Cause Software in N112/9 control unit for telematics services (HERMES). Remedy Software update for control unit N112/9 - Control unit for telematics services (HERMES) to software release E522.7.

Repeated filings are grouped only when make, bulletin number, publication date and complete summary agree. Original record numbers are retained. Older publications remain available, and an explicit later version is shown when established. Pre-1994 vehicle associations are separated from default results; an unspecified year does not mean all model years apply.