Service bulletin SIB-33-01-14

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

BMW: INFORMATION CONCERNING A DELIVERY STOP THAT HAS BEEN ISSUED ON SOME 2014 MODEL F15 AND F3X PRODUCED FROM JULY 2013 TO JANUARY 2014. THE FINAL DRIVE DIFFERENTIAL GEARS WERE NOT PROPERLY HARDENED. *JS

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Transmission and driveline, Axle

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

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