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Service campaign CL-240903

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 campaign
NHTSA id11011781
Published by NHTSA2024-12-12
Manufacturer's numberCL-240903
Manufacturer's date2024-12-06
NHTSA componentENGINE

NHTSA's summary

Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year 2021 - 2022 G-Class vehicles, the engine control unit software characteristics may not meet local regulatory requirements for the vehicle's On-Board Diagnostics and/or exhaust gas emissions. Our records indicate that your vehicle is included in the affected population. What is the issue? During low-load operations, the vehicle's air/fuel ratio diagnostic system may not be activated as intended. What will your Mercedes-Benz Dealership do? An authorized Mercedes-Benz dealership will check and, if necessary, update the Engine Control Unit Software. This vehicle repair will be provided at no cost to you. While the minimum repair time can be up to 30 minutes, your dealership can provide you with a better estimate of the overall time for this service visit. As a matter of normal service process, an authorized Mercedes-Benz dealer will also check for other repair measures which might be applicable to your vehicle and this may increase the required working time. You will not be charged for other service or repairs unless so requested. Steps to take. . Find your nearest authorized Mercedes-Benz dealership at mbusa.com/recall to schedule your recall repair. . Please mention you are scheduling an appointment for Mercedes-Benz Emissions Recall Campaign # 2024090003 (CA DMV # 240903) . You may be asked for your VIN, which for your convenience is located at the top of this letter.

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

Engine

Vehicles listed
MERCEDES-BENZ AMG G632021 to 2022
MERCEDES-BENZ G 5502021 to 2022

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