Service bulletin M120315

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

B46M: Enable 3rd-2nd Gear Downshift Active Engine Speed Adaptation. The active engine speed adaptation feature, or rev-matching when downshifting from 3rd to 2nd gear, was not initially active in production for the MY 2015 Cooper S models. DME software changed in production.

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

Engine

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

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