Mercedes-Benz service campaign CL-240903
Mercedes-Benz filed this with NHTSA as a service campaign dated Dec 6, 2024, received Dec 12, 2024, about the engine. It names 2 model years (2021–2022). A service campaign is not a safety recall — there is no NHTSA campaign number and no federal requirement — but it is usually work the manufacturer pays for on the vehicles it names; the dealer checks the VIN against the manufacturer’s list.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationMercedes-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.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| CL-240903 | Service campaign | Dec 6, 2024 | 11011781 | not yet checked |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themA vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
Common questions
Source: NHTSA, 49 CFR 579.5Is Mercedes-Benz CL-240903 a recall?
No. A service campaign is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the CL-240903 repair free?
A service campaign is usually paid by the manufacturer on the vehicles it names, within the terms and time limit the document sets; the dealer checks the VIN against the manufacturer’s list.
Which vehicles does CL-240903 cover?
The manufacturer filed it against 2 model years: 2022 Mercedes-Benz G-Class, 2021 Mercedes-Benz G-Class. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.