BMW 3 Series 2006–2007 — technical service bulletin
Bulletin SI B16 01 05 · NHTSA communication 10025556 · issued Jan 1, 2008
Technical service bulletin
communication type
Fuel System, Gasoline
component
2006–2007
model years
2
vehicle entries
Official summary
Buzzing, humming or growling noises coming from inside the fuel tank. Vehicles with m56 engine from start of production to the present (sulev vehicles only). Model e46 (3 series) *pe
Vehicles covered
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.