BMW X6 2019–2020 — technical service bulletin
Bulletin B510520 · NHTSA communication 10172493 · issued Feb 1, 2020
Technical service bulletin
communication type
Fuel System, Gasoline
component
2019–2020
model years
3
vehicle entries
Official summary
FUEL FILLER DOOR STICKING: The fuel filler door may be sticking requiring multiple attempts to open. The fuel filler door material can swell in wet conditions causing the filler door to stick.
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.