BMW X1 2016–2017 — technical service bulletin
Bulletin B540518 · NHTSA communication 10145299 · issued Jun 1, 2018
Technical service bulletin
communication type
Structure
component
2016–2017
model years
4
vehicle entries
Official summary
RATTLE NOISE FROM FRONT OF PANORAMIC ROOF WHILE DRIVING OVER ROUGH ROADS: While driving over rough roads, a rattle noise may develop from the front corner areas of the panoramic sunroof.
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.