BMW 3 Series 2012–2013 — technical service bulletin
Bulletin 11 10 12 · NHTSA communication 10058975 · issued Jul 1, 2015
Technical service bulletin
communication type
Engine
component
2012–2013
model years
5
vehicle entries
Official summary
When accelerating, in hot ambient temperatures, between 3,000 rpm and 5,000 rpm, causes judders or surges in vehicle, repeatedly, due to the electropneumatic pressure convertor. *ma
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.