BMW 428I 2015–2018 — technical service bulletin
Bulletin B514716 · NHTSA communication 10150973 · issued Jan 1, 2017
Technical service bulletin
communication type
Structure
component
2015–2018
model years
8
vehicle entries
Official summary
?CREAKING NOISES FROM C-PILLAR. Flexing of body panels near weld point in the interior side wall.
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.