2005 MINI Cooper Convertible problems & reliability
96 owner complaints filed with NHTSA for the 2005 MINI Cooper Convertible, alongside 1 safety recall campaign. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
3 complaints report injuries (3 injured).
Federal crash records (FARS 2020–2023): 2005 MINI Cooper Convertible vehicles were involved in 4 fatal crashes with 2 occupant deaths. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Steering | 75 | 78% |
| Air Bags | 7 | 7% |
| Electrical System | 7 | 7% |
| Power Train | 6 | 6% |
| Latches/locks/linkages | 3 | 3% |
| Engine | 2 | 2% |
| Seats | 2 | 2% |
| Unknown OR Other | 2 | 2% |
| Engine and Engine Cooling | 1 | 1% |
| Fuel System, Gasoline | 1 | 1% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Mileage when problems occurred
Half of the failures with a reported odometer reading occurred by 70,057 miles (middle 50% between 54,000 and 94,500 miles), based on 87 complaints that included mileage.
Complaints by incident year
What owners report
“The contact owns a 2005 Mini Cooper Convertible. The contact stated that she noticed a leak coming from the vehicle. The contact took the vehicle to an independent mechanic, where it was diagnosed with a power of steering hose leak. The vehicle was not repaired. The contact related the failure to NHTSA Campaign…”
Steering · filed Mar 8, 2023
“The transmission will cycle first through third and when it tries to go into 4th it slips and will not operate higher gears it caused me to lose my forward drive momentum as I was switching lanes and the car I was getting in front of almost ran into me.”
Power Train · filed Feb 18, 2022
“My son drives this car and the power steering went out twice on him while driving. I need to get the pump replaced via the recall, but the nearest location is 200 miles from me. It is not safe to drive this car that far and I would have to drop it off and make another trip to pick it up. Towing that far would cost a…”
Steering · filed Dec 21, 2021
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- Loss of power steering assist
Engineering Analysis EA11005 · opened May 4, 2011 · closed Jan 5, 2016 · led to recall 15V660000
- Loss of Power Steering Assist
Preliminary Evaluation PE10038 · opened Sep 24, 2010 · closed May 10, 2011
Technical service bulletins
23 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2005 MINI Cooper Convertible. The 10 most recent:
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…
M610607 · Service Bulletin/Repair Instructions · issued Oct 25, 2023
W10 ENGINE: EMS2K - COMPREHENSIVE COMPONENT OBD READINESS MONITOR NOT COMPLETED: An affected vehicle fails to pass a state Inspection and Emission (I/M) test due to the ÒComprehensive ComponentÓ OBD readiness monitor…
M120817 · Service Bulletin/Repair Instructions · issued May 1, 2018
This Service Information bulletin supersedes SI 32 02 14 dated August 2014. SUBJECT Installation of Right-Hand Drive Steering Spindle in Left-Hand Drive Vehicle is No Longer Required. Left-hand drive steering spindles…
M320214 · Service Bulletin/Repair Instructions · issued Mar 1, 2016
Mini: faulty software for the tank ventilation control displays engine throttle reaction when temperature is high outside, and more obvious if the tank is only partly filled. *ma
12 09 15 · Service Bulletin/Repair Instructions · issued Jul 1, 2015
Mini: some vehicles have turbocharger noise and a lack or loss of performance, due to restriction of turbocharger oil supply, resulting in oil starvation and seizing of turbocharger assembly. Model all. *pe
SIM-11-10-14 · Service Bulletin/Repair Instructions · issued Dec 1, 2014
Electro-Hydraulic Power-Assist Steering Pump (EHPS) and Cooling Fan: Limited Warranty Extension to 13 Years/150,000 Miles. On affected vehicles, the electro-hydraulic power steering (EHPS) pump can fail.
M010113 · Service Bulletin/Repair Instructions · issued Nov 1, 2014
Mini: models r50, r52, and r53 with the electro-hydraulic power-assist steering pump and cooling fans will have an limited warranty extension to 13 years/150,000 miles. *ta
SI M01 01 13 · Service Bulletin/Repair Instructions · issued Nov 1, 2014
MINI CVT Replacement Parts Warranty Extension: Additional 12 Months with Up to 50,000 Accumulated Miles. A MINI vehicle's CVT assembly or component that was previously repaired and/or replaced by an authorized MINI…
M010514 · Service Bulletin/Repair Instructions · issued Oct 1, 2014
Installation of Right-Hand Drive Steering Spindle in Left-Hand Drive Vehicle. Supply shortage of left-hand drive steering spindles
M320214 · Service Bulletin/Repair Instructions · issued Aug 1, 2014
MINI CVT Replacement Parts Warranty Extension: Additional 12 Months with Up to 50,000 Accumulated Miles. A MINI vehicle's CVT assembly or component that was previously repaired and/or replaced by an authorized MINI…
M010514 · Service Bulletin/Repair Instructions · issued Jun 1, 2014
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 2005 MINI Cooper Convertible has 1 NHTSA recall campaign — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2005 MINI Cooper Convertible?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Owners most often reported problems around 70,057 miles — budget accordingly if the car is approaching that mileage.