BMW 535I 2010–2013 — technical service bulletin
Bulletin 511812 · NHTSA communication 10150326 · issued Oct 1, 2012
Technical service bulletin
communication type
Structure
component
2010–2013
model years
8
vehicle entries
Official summary
Creaking Noise from the B-pillar. A creaking noise can be heard from the left or right B-pillar when driving on rough roads. CAUSE Slight movement between the two overlapping metal pieces of the B-pillar
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.