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Service campaign NCU-2025040008

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 id11018215
Published by NHTSA2025-05-09
Manufacturer's numberNCU-2025040008
Manufacturer's date2025-05-02
NHTSA componentENGINE; ELECTRICAL SYSTEM

NHTSA's summary

Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the SCN coding in the Belt-driven Starter Alternator (BSA) control unit does not correspond to the latest production specifications. MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will perform an SCN coding in the BSA control unit.

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

Electrical system, Engine

Vehicles listed
MERCEDES-BENZ AMG CLA452014 to 2019
MERCEDES-BENZ AMG GLA 352024 to 2025
MERCEDES-BENZ AMG GLA352021 to 2023
MERCEDES-BENZ AMG GLA452021 to 2023
MERCEDES-BENZ AMG GLB352021 to 2025
MERCEDES-BENZ CLA 2502018 to 2019
MERCEDES-BENZ CLA2502014 to 2017
MERCEDES-BENZ GLA 2502021 to 2025
MERCEDES-BENZ GLB 2502020 to 2025

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