Electrical system

Bulletin number

NCU - 2025090010

Component

Electrical system

Summary

Issue Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the Electronic Ignition Lock control unit coding does not correspond to current series production configuration. As a result, battery management could be affected and cause low battery voltage. A 12V battery message may appear in the instrument cluster after the vehicle has been dormant for an extended period of time. Remedy MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will SCN code the Electronic Ignition Lock control unit. The new SCN coding improves battery management, improving the efficiency of the 12V electrical system.

Owners of these vehicles have filed 5 complaints in the electrical category.