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Service bulletin SI-B-11-01-07

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10029025
Published by NHTSA2009-06-12
Manufacturer's numberSI-B-11-01-07
Manufacturer's date2009-03-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:DIESEL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV); ENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

BMW: SMALL NUMBER OF VEHICLES EXPERIENCE PROBLEMS RANGING FROM LEAKING OIL FILLER CAPS, LEAKING OR BROKEN VALVE COVERS, TO COMPLETE ENGINE FAILURE IN EXTREMELY COLD CLIMATE CONDITIONS. MOISTURE ACCUMULATING IN ENGINE CRANKCASE VENTILATION VALVE OR HOSES CAN FREEZE DUE TO LOW AMBIENT TEMPERATURES. *PE

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, Exhaust and emissions, Crankcase ventilation (PCV)

Vehicles listed
BMW 5 SERIES1994 to 2006
BMW 6 SERIES1985 to 1995
BMW 6 SERIES2004
BMW 7 SERIES1994 to 2004
BMW X51999
BMW X52000, 2001, 2002, 2003, 2004, 2005, 2006
VOLVO 600 SERIES1996 to 2000
VOLVO 700 SERIES1996 to 2000

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