TSB M120121 — Mini Service bulletin
M120121 is a service bulletin on file with NHTSA for the Mini Cooper, 2015–2021 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. In situations when the fuel tank vent line becomes blocked, the on-board diagnosis (OBD) may not detect the blockage.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years M120121 names
Every document filed under M120121
| Document ID | Filed | Type |
|---|---|---|
| M120121 | December 1, 2021 | Service bulletin |
What M120121 covers
Fuel system — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB M120121?
M120121 is a service bulletin filed with NHTSA by Mini, covering the Mini Cooper across the 2015–2021 model years. NHTSA's summary reads: In situations when the fuel tank vent line becomes blocked, the on-board diagnosis (OBD) may not detect the blockage.
Which vehicles does M120121 cover?
NHTSA's file names Mini Cooper (2015–2021). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.
Is TSB M120121 a recall, and is the repair free?
No. M120121 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.
How do I get the full text of M120121?
Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under M120121, its date, and NHTSA's own summary from the public file.
Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under M120121. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.