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Service bulletin LI47.70-P-079912

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11025534
Published by NHTSA2025-11-14
Manufacturer's numberLI47.70-P-079912
Manufacturer's date2025-11-11
NHTSA componentELECTRICAL SYSTEM

NHTSA's 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.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system

Trouble codes named

P0E89, P1549, P154A, P154B, P2BC5, P2BCC

Vehicles listed
MERCEDES-BENZ AMG E 53 4MATIC+ WAGON2025
MERCEDES-BENZ AMG E53E2023
MERCEDES-BENZ AMG S 63 E 4MATIC+2023 to 2025
MERCEDES-BENZ EQB 250+2023 to 2025
MERCEDES-BENZ EQB 300 4MATIC2022 to 2025
MERCEDES-BENZ EQB 350 4MATIC2022 to 2025
MERCEDES-BENZ GLE 350 E2020 to 2022
MERCEDES-BENZ GLE 450E 4MATIC2024 to 2025
MERCEDES-BENZ S 580 E2023
MERCEDES-BENZ S 580 E 4MATIC2023 to 2025

Listing a model year does not mean every vehicle of it is concerned: the document says which.