Service bulletin NCU - 2024030005

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 an Emission Service Campaign launch to update the Engine Control Unit software on 16 Model Year (MY) 2017 GLS vehicles (166 platform). The vehicles will be visible and flagged in VMI as OPEN on April 19, 2024. Mercedes-Benz AG (MBAG), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (MY) 2017 GLS vehicles (166 platform), the engine control unit software does not correspond to the current series production configuration. MBUSA will conduct an Emission Service Campaign in which an authorized Mercedes-Benz dealer will update the engine control unit on the affected vehicles

The document

• NHTSA's copy of the document (PDF)
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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

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

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