Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject...

Bulletin number

NCU - 2025100006

Component

Electrical system

Summary

Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the engine control unit software does not correspond to the current series production configuration. Some customers may notice a noise from the radiator fan as well as a corresponding fault message displayed in the instrument cluster. MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will update the engine control unit software.

Owners of these vehicles have filed 82 complaints in the electrical category.