Mini Cooper d
Reliability, running costs, and MOT data across 8 years from 12,125 real MOT tests.
Avg Pass Rate
78%
Total Tests
12,125
Best Year
2014 (85%)
Years Covered
8
How reliable is the Mini Cooper d?
Mini Cooper d by Year
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About the Mini Cooper d
The Mini Cooper d has been tested 12,125 times in 2024 MOT data across 8 model years (2007 to 2014), with an average pass rate of 78%. That's close to the national average of 82%. Available as diesel.
Best and Worst Years
The 2014 model is the most reliable with a 85% pass rate from 142 tests. The 2008 model has the lowest at 73%. The 12 point spread between years means reliability varies somewhat, but no year is dramatically different.
Reliability Trend
Newer MINI COOPER Ds show better MOT pass rates than older ones, with an average improvement of 8 percentage points.
Mileage Across Years
The oldest model in our data (2007) averages 136,229 miles, while the newest (2014) averages 92,591 miles. Older models have covered serious mileage, so suspension and drivetrain wear are worth checking.
Compared to the Mini brand average of 84%, the Cooper d is 6 points lower, placing it among the less reliable Mini models.
Click any year in the table above to see detailed running costs, individual reliability data, and comparisons with similar cars.