Complaint Vehicle will not start after DC charging Warning in the instrument cluster related to...
Mercedes-Benz technical service bulletin LI47.70-P-079912 for 2022-2025 Mercedes-Benz Eqb 300 4matic, 2023-2025 Mercedes-Benz EQB 250+ and 2022-2025 Mercedes-Benz Eqb 350 4matic and others.
- Bulletin number
- LI47.70-P-079912
- Component
- Electrical system
- Summary
- Complaint Vehicle will not start after DC charging Warning in the instrument cluster related to High-voltage on board electrical system The following fault codes related to stuck contactor can be found in the High Voltage Control units : PTCU - N127 (Powertrain control unit) • P154900 - There is a warning due to overcurrent in the charging system of the high-voltage electric circuit. • P154A00 - There is a warning due to a detected crash event at standstill. • P154B00 - There is a warning due to a stuck contactor. DCB223 - N116/5 (Direct current charge connection unit) • P0E8929 - The input current of the on-board DC charging connection unit is too high. There is an invalid signal. • P2BC500 - The contact ''Positive terminal'' of the contactor in the on-board DC current charge-connection unit is jammed closed • P2BCC00 - The contact ''Negative terminal'' of the contactor in the on-board DC current charge-connection unit is jammed closed. Cause • Current ripple due to EVSE (Electric Vehicle Supply Equipment) • Overcurrent or Overvoltage due to EVSE (Electric Vehicle Supply Equipment) • DCB contactors did not open immediately due to welding time at the end of DC charging Remedy • Check for a new software availability for DCCU (N116/5 - Direct Current Charge connection Unit). If a new software is available, update the software first. • Reset contactor fault through special procedure without password. ( N116/5 >> Special Procedure >> Resetting of contactor fault.) Important Note : • Do not replace component DCB (N116/5) • If fault codes are not erasable, please raise a TIPS case and send it to HQ.
Owners of these vehicles have filed 116 complaints in the electrical category.
Vehicles covered
- Mercedes-Benz Eqb 300 4matic 2022-2025 2022202320242025
- Mercedes-Benz EQB 250+ 2023-2025 202320242025
- Mercedes-Benz Eqb 350 4matic 2022-2025 2022202320242025
- Mercedes-Benz Gle 450e 4matic 2024-2025 20242025
- Mercedes-Benz AMG E 53 4matic+ Wagon 2025 2025
- Mercedes-Benz S 580 E 4matic 2023-2025 202320242025
- Mercedes-Benz Gle 350 E 2020-2022 202020212022
- Mercedes-Benz AMG S 63 E 4matic+ 2023-2025 202320242025
- Mercedes-Benz S 580 E 2023-2024 20232024
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