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

Bulletin number

NCU - 2025100004

Component

Electrical system

Summary

Issue Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the 48-V on-board electrical system battery software might not meet current production specifications. A communication error may occur when reactivating the 48V lithium-ion battery during reinitialization. The system might detect and store this error, causing the malfunction indicator lamp to illuminate unnecessarily. Remedy MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will update 48-V onboard electrical system battery software.

Owners of these vehicles have filed 40 complaints in the electrical category.