BMW 428I 2014–2017 — technical service bulletin
Bulletin B513416 · NHTSA communication 10147024 · issued Aug 1, 2016
Technical service bulletin
communication type
Equipment Adaptive/mobility
component
2014–2017
model years
6
vehicle entries
Official summary
RAISING OF WIND DEFLECTOR AT A HIGH SPEED. Unintentional lifting of the wind deflector occurs at a high speed and it is perceived that it may possibly detach. CAUSE Rear seat backrest not locked. This is not visually detectable at first glance. Make the customer aware of the proper rear seat engagement.
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.