MINI Cooper 2015–2020 — technical service bulletin
Bulletin M120420 · NHTSA communication 10174327 · issued Apr 1, 2020
Technical service bulletin
communication type
Engine and Engine Cooling
component
2015–2020
model years
9
vehicle entries
Official summary
SERVICE ACTION: PROGRAM THE DIGITAL MOTOR ELECTRONICS (DME) - B36C: In certain situations the exhaust valve seat inserts may become overheated when using low quality fuel. If overheated the valve seat insert may become distorted and wear at an increased rate. Unfavorable software calibration for low quality fuel engine operation.
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.