Service bulletin B612424

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

Small debris may accumulate inside the volume control thumbwheel of the iDrive Controller. Existing gaps between the glass application and the light guide could allow external debris to enter inside the volume thumbwheel under normal usage. This debris can be seen through the crystal volume thumbwheel, giving the appearance of a cosmetic defect with the thumbwheel itself. Active lighting makes this debris more visible when illuminated. This could make the false illusion of a cosmetically defective volume thumbwheel more visible (many small dark spots or streaks).

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.

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

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