Subaru IMPREZA - 2004
206.8 faults per 100 tests
Year average for all cars of 2004 is 384.6 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Subaru IMPREZA, model year 2004.
Sample size: 2,055 cars, 3,965 tests and 8,201 recorded faults.
0%
Less faults compared to the average car of same model year
Less faults compared to the average car of same model year
Quick summary
Total: 2,055 cars
The 2004 Subaru Impreza demonstrates a significantly lower overall defect rate compared to the average car of the same year, with 207 defects per 100 vehicles versus 382. Notably, the Impreza excels in categories such as brakes and steering, showing a 54% and 81% improvement respectively over the average. The defect rate increases with mileage, particularly in the higher mileage brackets, which is consistent with general trends. While tyre wear is not highlighted as a major issue, the Impreza's performance in visibility and lights & electrics is also notably better than average. Overall, this model stands out for its reliability in critical safety areas.
Cars by mileage segment
Total: 2,055 cars
Categories
Brakes
▲ 53.4% better
76.5 faults / 100 tests
Year avg: 164.2 / 100 tests
- Brake pipe damaged or excessively corroded
- Brake disc or drum: insecure, fractured or otherwise likely to fail
Steering
▲ 80.7% better
4.8 faults / 100 tests
Year avg: 24.9 / 100 tests
Visibility
▲ 58.4% better
12.2 faults / 100 tests
Year avg: 29.3 / 100 tests
Lights & Electrics
▲ 49.0% better
56.1 faults / 100 tests
Year avg: 109.9 / 100 tests
Wheels & Suspension
▲ 42.2% better
180.9 faults / 100 tests
Year avg: 312.9 / 100 tests
- A suspension pin, bush, joint or bearing: excessively worn
- A suspension component: excessively damaged or corroded
- Tyre tread depth not in accordance with the requirements
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
- The strength or continuity of the load bearing structure within 30cm … is significantly reduced or inadequately repaired
Body/Structure
▲ 41.0% better
37.5 faults / 100 tests
Year avg: 63.6 / 100 tests
- Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
Equipment
▲ 49.3% better
7.0 faults / 100 tests
Year avg: 13.8 / 100 tests
Other
▲ 23.8% better
38.5 faults / 100 tests
Year avg: 50.5 / 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
* Metric: faults per 100 tests.
Most common faults (Top 10)
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 618
A suspension component: excessively damaged or corroded
ADVISORY
Occurrences: 596
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 579
Brake pipe damaged or excessively corroded
ADVISORY
Occurrences: 437
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 363
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 330
The strength or continuity of the load bearing structure within 30cm … is significantly reduced or inadequately repaired
ADVISORY
Occurrences: 283
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 258
The strength or continuity of the load bearing structure within 30cm … is significantly reduced or inadequately repaired
FAIL
Occurrences: 241
Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
ADVISORY
Occurrences: 203
Serious faults (Top 10)
The strength or continuity of the load bearing structure within 30cm … is significantly reduced or inadequately repaired
FAIL
Occurrences: 241
Beam image obviously incorrect
FAIL
Occurrences: 107
Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
FAIL
Occurrences: 90
Emissions levels exceed default limits
FAIL
Occurrences: 82
Lambda coefficient outside the default limits or the range specified by the manufacturer
FAIL
Occurrences: 82
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 80
Emissions levels exceed the manufacturer’s specified limits
FAIL
Occurrences: 70
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 62
A suspension component: excessively damaged or corroded
FAIL
Occurrences: 57
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 54