2021 Mini JCW Convertible: common problems
The maker issued 42 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 42
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Equipment | 0 | 0 | 18 |
| Electrical system | 0 | 0 | 15 |
| Structure | 0 | 0 | 10 |
| Engine and cooling | 0 | 0 | 4 |
| Exterior lighting | 0 | 0 | 2 |
| Fuel system | 0 | 0 | 2 |
| Powertrain | 0 | 0 | 2 |
| Steering | 0 | 0 | 2 |
| Wheels | 0 | 0 | 2 |
| Backover prevention | 0 | 0 | 1 |
| Communication | 0 | 0 | 1 |
| Electronic stability control | 0 | 0 | 1 |
| Engine | 0 | 0 | 1 |
| Forward collision avoidance | 0 | 0 | 1 |
Comparison
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Exterior lighting. Headlamps, leveling, sensors and mounts after a frontal hit.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- MINI electrical systems have continued to develop over the past few years
As a result, the demand on the batteries has increased. Breakdowns due to an empty battery or problems in the vehicles electrical system can have various causes, most of which are not due to the battery itself. For…
- ?The panoramic roof sunblind does not close, or jams while closing
- ?BMW AG has issued a Delivery Stop
REPLACE CHARGE AIR LINE.
- Upon opening and closing the tailgate, a creaking/groaning sound can be heard from tailgate actuator
- The 3G network in the US has been shut down
This means that only the 4G network will be available. In the 4G network, voice calls will be transferred via Voice over LTE (VoLTE) function. For this purpose, the SIM card must perform an IMS registration in the…
- The buttons on the gear selector switch (GWS) do not work, or the function indicator lighting has failed
- Oscillations in the electric drive can occur
As a result, the 12 V positive battery cable may rub against the battery box cover.
- Ambient lighting changes color after the vehicle goes to sleep
- Due to a production error, the telematics control units were delivered without an IMS configuration
The Connected Drive voice services (Concierge Call, MINI Assistance and emergency call voice) can no longer be used regionally in the US in vehicle with telematics control units ATM-1 and TCB-4G. Voice control of the…
- Mist formation on the windscreen inner surface may occur at departure or after MSA (automaticstart/stop)
Acoustic abnormality in the area of the recirculated air flap (recirculation flap closing and opening several times). The above may occur individually or in combination.
- The following complaints may be noticed while slow maneuvering with a steering input of 80-100% (at or…
The following complaints may be noticed while slow maneuvering with a steering input of 80-100% (at or near full lock, e.g., parking lot maneuvers) or accelerating with a medium to large steering angle: Humming or…
- The Check Control message "Door open" appears in the instrument cluster (Kombi) even though all vehicle…
The Check Control message "Door open" appears in the instrument cluster (Kombi) even though all vehicle doors are securely closed and locked.
NHTSA lists 42 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2021 Mini JCW Convertible?
There are no owner complaints in the NHTSA data for this year; the data comes from 42 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2021 Mini JCW Convertible?
NHTSA lists 42 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2021 Mini JCW Convertible from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2021 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.