MINI Cooper 2014–2018 — technical service bulletin
Bulletin M120618 · NHTSA communication 10143573 · issued May 1, 2018
Technical service bulletin
communication type
Engine
component
2014–2018
model years
13
vehicle entries
Official summary
JCW ENGINE TUNING KIT - ENGINE LOSS OF POWER IN STOP-AND-GO DRIVING: The engine may lose power if the vehicle is decelerated, in gear, to a near stop and then accelerated again.
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.