Service bulletin M121214

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 Service Information bulletin supersedes SI M12 12 14 dated September 2014. SUBJECT VANOS Faults Stored in DME (Bosch). The Service Engine Soon (MIL) is on and the engine could go into a reduced power mode with the ""Drivetrain Malfunction"" message displayed. One or more of the VANOS faults (listed in the attachment) are stored in the DME, although the engine is mechanically sound and no unusual noises can be heard from the VANOS area. Due to unfavorable Engine Position Management (EPM) parameters in the DME software, various VANOS control faults could be set. These control faults relate to implausible camshaft position (intake or exhaust), the camshaft stuck situation, or the camshaft angle offset to crankshaft outside the tolerance range."

The document

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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

Transmission and driveline

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

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