Service bulletin NCU - 2024020005

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.

NHTSA's summary

This is to notify you of the Service Campaign Launch to update the SCN coding for the drive unit DRVU Control Unit in 66,944 Model Year (MY) 2023 C-Class, GLC, S-Class, and SL (206, 223, 232, and 254 platform) vehicles. The vehicles will be visible and flagged in VMI as OPEN on April 5, 2024. Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2023 C-Class, GLC, S-Class, and SL (206, 223, 232, and 254 platform) vehicles, the DRVU control unit does not correspond to current production specifications. As a result, an incorrect fault stored message may appear (e.g. U188D00 and U015400) in the instrument cluster, indicating a missing signal, when in fact such signal is not required at this time. MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will update the SCN coding for the DRVU Control Unit.

The document

• NHTSA's copy of the document (PDF)
• If that address does not open, try this one

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

Trouble codes named

U0154, U188D

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

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