# Service bulletin LI54.10\-P\-079955

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.

- Type: Service bulletin
- NHTSA id: 11024513
- Published by NHTSA: 2025\-10\-28
- Manufacturer's number: LI54.10\-P\-079955
- Manufacturer's date: 2025\-10\-27
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

Complaint Suspension fault message: “Drive max. 50 mph” Fault code P0A7F53 \- The aging limit of the high\-voltage battery module has been reached. Cause Incorrect determination of the aging limit of the 48V battery due to a software error. If fault code P0A7F53 is set, the 48V battery irreversibly ceases to function, resulting in limited operation of the electric roll stabilization \(eARS\). Remedy Replacement of the 48V battery and flashing the current software for the control unit LIB48\_177.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11024513-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11024513-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system

## Trouble codes named

P0A7F

## Vehicles listed

- 2023 to 2024 MERCEDES\-BENZ AMG EQE
- 2024 to 2025 MERCEDES\-BENZ AMG EQE SUV 4MATIC
- 2023 to 2025 MERCEDES\-BENZ AMG S 63 E 4MATIC\+

JSON: [/v1/bulletins/11024513](/v1/bulletins/11024513)

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