BMW 3 Series 2010 — technical service bulletin
Bulletin B066425 · NHTSA communication 11027015 · issued Dec 2, 2025
Technical service bulletin
communication type
Engine
component
2010
model years
5
vehicle entries
Official summary
Gasket Return
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.