Mercedes-Benz TSB #Ll54.10-P-076896
2023 Mercedes-Benz C300
Affected Component: ELECTRICAL SYSTEM
- Summary
- 12V message in IC when starting the vehicle. SW updates need to be performed. Follow the guided test for FC U116000 in N73/3*1 EIS CU. Perform the SW checks and updates. Fully charge both 12V and 48V batteries. After, perform a few drive/park cycles with at least 1 overnight park cycle. If the 12V message is no longer present, release the vehicle.