# Emissions 2024090003

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: Emissions
- NHTSA id: 11010964
- Published by NHTSA: 2024\-12\-03
- Manufacturer's number: 2024090003
- Manufacturer's date: 2024\-11\-23
- Campaign id or software version: 2024090003
- NHTSA component: ENGINE

## NHTSA's summary

Mercedes\-Benz AG, the manufacturer of Mercedes\-Benz vehicles, has determined that the software for the engine control unit in the subject vehicles may not meet current specifications. As a result, the diagnosis for monitoring the air fuel ratio might not be activated in low load operation as intended. Consequently, this may not meet local regulatory requirements for on\-board diagnostics and/or exhaust gas emissions. An authorized Mercedes\-Benz dealer will update the Engine Control Unit software in the affected vehicles.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11010964-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11010964-9999.pdf)

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

## Components

Engine

## Vehicles listed

- 2021 to 2022 MERCEDES\-BENZ AMG G63
- 2021 to 2022 MERCEDES\-BENZ G 550

JSON: [/v1/bulletins/11010964](/v1/bulletins/11010964)

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