Service bulletin B18-04-12

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: METERING UNITS INSTALLED ON CERTAIN E90 VEHICLES (PRODUCED FROM 6/1/2009 TO 9/1/2010) WITH M57Y DIESEL ENGINE WILL CLOG DUE TO CRYSTALLIZATION OF THE DEF FLUID. AN IMPROVED METERING UNIT HAS BEEN INTRODUCED. *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

Engine

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

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