Combustion engine does not start, MIL (Malfunction Indication Light) may light up in instrument cluster,...
Mercedes-Benz technical service bulletin LI54.21-P-079255 for 2023-2025 Mercedes-Benz AMG S 63 E 4matic+.
- Bulletin number
- LI54.21-P-079255
- Component
- Engine
- Summary
- Complaint Combustion engine does not start, MIL (Malfunction Indication Light) may light up in instrument cluster, only electric driving possible. Fault code P0E2F00 logged in control unit BMS N82/10. Cause Auxiliary consumer fuse in the HV battery has an open circuit, caused by a short circuit in the auxiliary consumer line. Remedy Requirement: Before carrying out test work, it must be ensured that the person performing the work has successfully completed the required qualification for work on the high-voltage system. Qualification according to WIS is required to replace the auxiliary consumer fuse including eLearning T3057D-US.TTB. Note: If the fault "P0E2F00 The electrical fuse B for the high voltage has a malfunction" is stored in the N82/10 BMS control unit, the HV protocol must also be checked to see whether the fuse for the auxiliary consumers is ok. Check: To determine the causing HV component in the auxiliary consumer line, please follow and process the guided troubleshooting of the fault "P0E2F00 The electrical fuse B for the high voltage has a malfunction" saved in the N82/10 BMS control unit.
Vehicles covered
- Mercedes-Benz AMG S 63 E 4matic+ 2023-2025 202320242025
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