AI DamageMini Cooper S US: problems, complaints, bulletins
Summary for the Mini Cooper S US across 2 model years: 14 owner complaints and 0 NHTSA service bulletins, plus repair videos. Pick a year for details.
Model years
What fails most often
- 1 Engine 36% of all complaints
- 2 Electrical system 14% of all complaints
- 3 Engine and cooling 14% of all complaints
- 4 Powertrain 14% of all complaints
- 5 Air bags 7% of all complaints
- 6 Fuel/propulsion system 7% of all complaints
- 7 Fuel system 7% of all complaints
- 8 Seat belts 7% of all complaints
- Engine: 5 complaints (36% of all).
- Electrical system: 2 complaints (14% of all).
- Engine and cooling: 2 complaints (14% of all).
- Powertrain: 2 complaints (14% of all).
- Air bags: 1 complaints (7% of all).
Symptoms owners describe
How many of the 14 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine | 5 | 0 | 0 |
| Electrical system | 2 | 0 | 0 |
| Engine and cooling | 2 | 0 | 0 |
| Powertrain | 2 | 0 | 0 |
| Air bags | 1 | 0 | 0 |
| Fuel/propulsion system | 1 | 0 | 0 |
| Fuel system | 1 | 0 | 0 |
| Seat belts | 1 | 0 | 0 |
| Tires | 1 | 0 | 0 |
| Other | 1 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
The lights for the air bag and seat belt keeps coming on whether or not there is a passenger in the seat. The mechanic said the entire seat needs to be replaced. This is a safety issue as I don't know whether or not the airbags would deploy in the case of accident.
While driving on the highway, the timing chain tensioner broke, causing numerous and several thousand dollars in repair costs.
The technician replaced the fuel pump. The dealer was not contacted. The manufacturer was made aware of the failure and stated that there was no recall. The failure mileage was 80,774.
On several occasions, while attempting to start the vehicle, the engine failed without warning. The vehicle was taken to an independent mechanic who diagnosed that the timing chain needed to be replaced. The vehicle was not repaired.
Vehicle starting making a rattling noise in the left front timing chain area, took to local mechanic and he advised one of the timing tensioners had snapped, probably due to the timing chain having too much slack, I was advised that there may be a recall on these as it seems to be happening a lot.
I was driving home from work on us 75 south (downtown dallas) and the vehicle (2009 mini cooper s) just stopped, and all of the oil was leaking out from underneath the car. I recently found out the issue is with a mini issue relating to the tensioners/timing chain.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
What to check before buying
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
Other models of this make
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 2026-11-05.