BMW X1 2016–2018 — technical service bulletin
Bulletin B520118 · NHTSA communication 10136345 · issued Mar 1, 2018
Technical service bulletin
communication type
Seats
component
2016–2018
model years
4
vehicle entries
Official summary
EXPOSED FOAM IS VISIBLE UNDER THE FRONT SEAT: Exposed foam is visible under the optional front sport seat or in rear footwell as shown in the picture.
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.