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Service bulletin LI47.70-P-078127

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 id11020695
Published by NHTSA2025-07-15
Manufacturer's numberLI47.70-P-078127
Manufacturer's date2025-07-15
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

Complaint Vehicle not AC charging. Check engine light on. PTCU/N127 with fault code P0D9100 "The lock for the charging cable has an open circuit". Cause AC Charger (N83) Software Remedy Perform SW update to AC Charger (N83). If P0D9100 returns after the update has been performed, please open a TIPS case. TIPS case: Needed customer feedback: When did the complaint/IC message occur? While driving and / or charging / or parking? If the complaint occurred while charging, how long after did the complaint/IC message occur? Which charging station was used, which provider (picture if possible)? Attach HV CUL and QT to the case Test: Verify AC charging Erase fault codes and verify if fault code P0D9100 “The lock for the charging cable has an open circuit” returns Check AV of AC charger Check the connection of the charging cable and charging socket and lock actuator – 1) yes or no? – 2) Did the failure disappear or not? Check the connection of the OBC and HV-Harness to the charging socket (unplug and plug again) – 1) yes or no 2) Did the failure disappear or not? Check the LV-connection to the locking actuator on the charging socket (unplug and plug again) – 1) yes or no? 2) any changes? Check the emergency release activation on the locking actuator – was it triggered/pulled out or not? Emergency release should be rotated back in not activated position. Check for SW updates for AC charger and PTCU.

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

P0D91

Vehicles listed
MERCEDES-BENZ AMG C63 S E2024
MERCEDES-BENZ AMG S 63 E 4MATIC+2024 to 2025

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