Problems · NHTSA complaints

2009 MINI Cooper problems

Owners filed 152 complaints about the 2009 MINI Cooper with NHTSA between Apr 2009 and Aug 2026. The most-cited component is air bags (62).

Complaints
152
Filed with NHTSA
Crashes
1
Reported by owners
Fires
11
Reported by owners
Injuries
5
People reported injured
Deaths
0
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Air bags62
  2. Engine46
  3. Electrical system25
  4. Seat belts8
  5. Fuel/propulsion system5
  6. Power train5
  7. Engine and engine cooling5
  8. Seats4
  9. Steering4
  10. Structure4
  11. Exterior lighting3
  12. Vehicle speed control3
  13. Electronic stability control (esc)2
  14. Wheels2

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Data from NHTSA Complaints API · synced Oct 27, 2026NHTSA vehicle page
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
20091
20105
20114
20127
201313
201412
201523
201629
201712
20187
20197
20204
20212
20221
20239
20249
20256
20261

Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.

03 —Owner reports

Top problems in owners’ words

Verbatim from NHTSA complaints, newest first

Air bags

62 reports1 fire
“The contact owns a 2009 Mini Cooper. The contact stated that while driving at an undisclosed speed, the seat belt warning light illuminated even though there was no passenger seated in the passenger’s seat. The contact stated that the warning light remained illuminated with the passenger’s seat occupied and the seat belt properly fastened. The vehicle was taken to an independent mechanic, but was not diagnosed or repaired. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline for further assistance. The failure mileage was approximately 92,000.”
Owner complaint to NHTSAFiled Sep 2, 2025Air bagsODI 11684570

Engine

46 reports6 fires
“This has a major recall and won’t pass inspection. Engine light is on . I’ve called dealership and was told parts are on back order . Last year I was told the same thing before I received a letter in the mail.”
Owner complaint to NHTSAFiled Feb 5, 2024Vehicle speed control, Unknown or other, EngineODI 11569949

Electrical system

25 reports6 fires1 related recall
“The contact owns a 2009 Mini Cooper. The contact stated that while driving approximately 65 MPH at night, the exterior lights started flickering and started to become inoperable. The contact pulled over to the side of the road, turned off the vehicle, removed the battery terminals, and performed a master reset. After the master reset, there was an abnormal clicking sound inside the vehicle. The contact restarted the vehicle and drove to the residence. After arriving to the residence, the failure reoccurred. The vehicle was parked and turned. The vehicle was then taken to a certified mechanic to be diagnosed, and it was determined that the relays inside the junction box used to control several of the electronic features had become inoperable. The mechanic suggested that the vehicle not be driven. The vehicle was not repaired. The manufacturer was informed of the failure and confirmed that the vehicle was not under recall. The failure mileage was approximately 90,000.”
Owner complaint to NHTSAFiled Aug 5, 2026Electrical systemODI 11754946

Seat belts

8 reports
“The passenger occupancy seat sensor is defective (as reported by many other owners of this vehicle model). The sensor is very costly to replace in terms of parts ($1,500) and labor ($1,500) and MINI does not sell the sensor separately as it is embedded in the seat foam. The defective sensor does not recognize a passenger sitting in the passenger seat and deactivates the passenger airbag which is an essential, lifesaving device fitted to a small vehicle. When involved in a major vehicle collision, without a working airbag, the risk of fatality drastically increases. The sensor is also responsible for NOT deploying the airbag if a passenger under 100lbs is sitting in the seat ie. a child. Again, this is a massive safety concern especially due to other owners resorting to a cheap aftermarket bypass module which will always deploy the airbag. This solution could seriously injure or cause fatalities for passengers under 100lbs. Other MINI models with the same electronic occupancy sensor problems have had recalls issued by the NHTSA and has not issued recalls for vehicles with the same issue consistently. It is the NHTSA's responsibility to hold the manufacturer…”
Owner complaint to NHTSAFiled Mar 13, 2024Air bags, Seat belts, SeatsODI 11577181

Fuel/propulsion system

5 reports1 fire
“The problem was that the gas pedal began to stick. Suddenly it began to idle at 4000 rpm. I had to reach down and pull up the gas pedal while driving. I had it replaced a few weeks ago. Then I received a letter from Mini about a footwell control module. It sounds like a similar corrosion problem and it needs to be fixed as well. I had it looked at several times before it was fixed properly because a dirty throttle body can cause it to idle too fast”
Owner complaint to NHTSAFiled Jul 13, 2023Fuel/propulsion systemODI 11532034

Power train

5 reports
“LIGHT IS COMING ON AND TRANSMISSION SHIFTS SMOOTHLY BUT WHEN YOU DECELERATE IT BUCKS DOWN. IT HAPPENS ANYWHERE ON THE ROADS WHEN DRIVING AND YOU DECELERATE. THE LIGHT THAT INDICATES ISSUE WITH TRANSMISSION, IN THE BOOK IT SAYS I WON'T BE ABLE TO SHIFT OUT OF PARK BUT THERE IS NO ISSUE SHIFTING OUT OF PARK, SO NOT SURE IF IT IS CONSIDERED ELECTRICAL OR IF IT IS POWERTRAIN”
Owner complaint to NHTSAFiled Oct 3, 2018Power train, Electrical system, EngineODI 11133209
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 27, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.