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Mini JOHN COOPER WORKS - 2011

146.6 faults per 100 tests
Year average for all cars of 2011 is 274.4 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Mini JOHN COOPER WORKS, model year 2011. Sample size: 150 cars, 356 tests and 522 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 150 cars

The 2011 MINI John Cooper Works demonstrates a significantly lower overall defect rate, with 147 defects per 100 vehicles compared to the average of 271, marking a 46% improvement. Notably, this model excels in categories like brakes, steering, and visibility, showing much fewer defects than the average car in these areas. However, it does perform worse in the "Other" category, registering a higher rate of defects than average. Mileage-related trends indicate that the model's defect rate tends to increase with higher mileage, particularly in the 0–31,000 miles and 93,000–124,000 miles segments. Overall, the MINI showcases strong reliability compared to its peers from the same year.

Cars by mileage segment

Total: 150 cars

Categories

Brakes
▲ 47.9% better
57.3 faults / 100 tests
Year avg: 109.9 / 100 tests
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Brake lining or pad: worn below 1.5mm
Steering
▲ 86.1% better
2.2 faults / 100 tests
Year avg: 15.8 / 100 tests
Visibility
▲ 52.4% better
10.1 faults / 100 tests
Year avg: 21.2 / 100 tests
Lights & Electrics
▲ 38.0% better
42.7 faults / 100 tests
Year avg: 68.9 / 100 tests
  • A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
Wheels & Suspension
▲ 48.9% better
136.0 faults / 100 tests
Year avg: 266.4 / 100 tests
  • Tyre tread depth not in accordance with the requirements
  • A suspension pin, bush, joint or bearing: excessively worn
  • A suspension component: excessively damaged or corroded
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • A wheel: badly distorted or wear between wheel and hub at spigot mounting
Body/Structure
▲ 89.1% better
3.4 faults / 100 tests
Year avg: 31.3 / 100 tests
Equipment
▲ 91.9% better
0.6 faults / 100 tests
Year avg: 7.4 / 100 tests
Other
▼ 47.5% worse
41.0 faults / 100 tests
Year avg: 27.8 / 100 tests
  • Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users

Fault rate by mileage segment

Model    Year average
0 459 0–31,000 mi 31,000–62,000 62,000–93,000 93,000–124,000 124,000+
* Metric: faults per 100 tests.

Most common faults (Top 10)

Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 89
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 58
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 54
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 30
A suspension component: excessively damaged or corroded
ADVISORY
Occurrences: 26
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 25
A wheel: badly distorted or wear between wheel and hub at spigot mounting
ADVISORY
Occurrences: 18
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 16
A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
MINOR
Occurrences: 16
A shock absorber damaged … or showing signs of severe leakage
ADVISORY
Occurrences: 15

Serious faults (Top 10)

Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
FAIL
Occurrences: 11
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 7
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 4
Emissions levels exceed default limits
FAIL
Occurrences: 4
Excessive fluctuation in brake effort through each wheel revolution
FAIL
Occurrences: 4
Emissions levels exceed the manufacturer’s specified limits
FAIL
Occurrences: 3
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 3
A shock absorber damaged … or showing signs of severe leakage
FAIL
Occurrences: 3
A wheel: with a loose or missing wheel nut, bolt or stud
FAIL
Occurrences: 3
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 3