BMW X1 2016–2017 — technical service bulletin
Bulletin B514116 · NHTSA communication 10146899 · issued Oct 1, 2016
Technical service bulletin
communication type
Electrical System
component
2016–2017
model years
4
vehicle entries
Official summary
RATTLE/BUZZ IN SUNSHADE. There is a rattle or buzz originating from the vicinity sunshade/ hands-free microphone, usually while driving on a rough surface. CAUSE Uncovered microphone plug vibrates against components behind headliner. Cover microphone plug with tape or foam
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.