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Service bulletin SI-B11-07-09

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 id10030850
Published by NHTSA2009-12-09
Manufacturer's numberSI-B11-07-09
Manufacturer's date2009-08-01
NHTSA componentENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS

NHTSA's summary

BMW: THERMOSTAT HOUSING INSPECTION. THE RETAINING SPRINGS OF THE THERMOSTAT HOUSING QUICK RELEASE COUPLINGS FOR THE COOLANT HOSES MAY NOT BE LOCKED CORRECTLY. THIS SITUATION MAY RESULT IN A COOLANT LEAK. MODELS AFFECTED ARE M3 SEDAN (E90), COUPE (92), AND CONVERTIBLE (393). NO MODEL YEARS LISTED. *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, Cooling system

Vehicles listed
BMW M3
BMW M31994
BMW M31995, 1996, 1997, 1998, 1999
BMW M32000
BMW M32001, 2002, 2003, 2004, 2005

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

Recalls for the same vehicles and component
98V1780001998-08-04. ENGINE AND ENGINE COOLING:COOLING SYSTEM

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.