MINI Cooper 2015–2021 — technical service bulletin
Bulletin M410121 · NHTSA communication 10190869 · issued Mar 1, 2021
Technical service bulletin
communication type
Structure
component
2015–2021
model years
11
vehicle entries
Official summary
REWORKING THE PVC SEAM ON THE TAILGATE WATER CHANNEL: The body seam on the rear upper left of the body may not have been completely sealed, causing a water leak.
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.