BMW 3 Series 2009–2011 — technical service bulletin
Bulletin SI-B11-08-03 · NHTSA communication 10034667 · issued Jul 1, 2010
Technical service bulletin
communication type
Engine and Engine Cooling
component
2009–2011
model years
5
vehicle entries
Official summary
Bmw: oil separator-cold climate conditions. Certain areas of the us experience extremely cold climate conditions during the winter months. A small number of vehicles have experienced problems ranging from leaking or broken valve covers to complete engine failure. Include models e39, 46, 53, 60, 83, and e85. No model years listed. *pe
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.