MINI Cooper 2015–2021 — technical service bulletin
Bulletin M120121 · NHTSA communication 10206694 · issued Dec 1, 2021
Technical service bulletin
communication type
Fuel System, Gasoline
component
2015–2021
model years
13
vehicle entries
Official summary
In situations when the fuel tank vent line becomes blocked, the on-board diagnosis (OBD) may not detect the blockage.
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.