Audi TT - 2004
363.5 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 Audi TT, model year 2004.
Sample size: 5,093 cars, 11,700 tests and 42,530 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: 5,093 cars
The 2004 Audi TT has an overall defect rate of 364 defects per 100 vehicles, which is slightly better than the average for its year at 382 defects per 100 vehicles, showing a 5% improvement. Notably, the model performs particularly well in steering, visibility, and equipment, with defect rates significantly lower than the average for these categories. In terms of mileage trends, the defect rate increases with mileage, particularly in the highest range (124,000+ miles), where it reaches 521 defects per 100 vehicles. Overall, the Audi TT demonstrates a solid performance compared to its peers, especially in key areas such as steering and visibility.
Cars by mileage segment
Total: 5,093 cars
Categories
Brakes
▼ 10.7% worse
181.8 faults / 100 tests
Year avg: 164.2 / 100 tests
- Brake pipe damaged or excessively corroded
- Brake hose ferrules: excessively corroded
- Significant brake effort recorded with no brake applied indicating a binding brake
- Brake disc or drum: insecure, fractured or otherwise likely to fail
- Brake pipe damaged or excessively corroded
Steering
▲ 42.6% better
14.3 faults / 100 tests
Year avg: 24.9 / 100 tests
- A steering ball joint: with excessive wear or free play
- A steering ball joint: with excessive wear or free play
- Steering rack gaiter or ball joint dust cover: missing or no longer prevents the ingress of dirt etc.
- Steering rack gaiter or ball joint dust cover: damaged or deteriorated
- Power steering fluid leaking or system malfunctioning
Visibility
▲ 45.7% better
15.9 faults / 100 tests
Year avg: 29.3 / 100 tests
- Wiper blade: missing or obviously not clearing the windscreen
- Wiper blade: defective
- Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
- Windscreen washers not working or not providing sufficient fluid to clear the windscreen
- Wiper blade: missing or obviously not clearing the windscreen
Lights & Electrics
▲ 19.0% better
89.0 faults / 100 tests
Year avg: 109.9 / 100 tests
- Product on the lens or light source which obviously reduces light intensity or changes emitted colour to other than white or yellow
- Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
- Headlamp reflector or lens: slightly defective
- A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
- Beam image obviously incorrect
Wheels & Suspension
▼ 0.3% worse
313.8 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
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
- Tyre tread depth not in accordance with the requirements
- A spring: or spring component fractured or seriously weakened
Body/Structure
▲ 11.0% better
56.6 faults / 100 tests
Year avg: 63.6 / 100 tests
- Exhaust system has a major leak or is insecure
- A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
- Exhaust system has a major leak or is insecure
- A transmission shaft constant velocity joint boot: severely deteriorated
- Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
Equipment
▲ 25.4% better
10.3 faults / 100 tests
Year avg: 13.8 / 100 tests
- ESC MIL indicates a system malfunction
- is significantly reduced or The strength or continuity of the load bearing structure within 30cm of any seat belt anchorage (a ’prescribed area’): inadequately repaired
- An SRS malfunction indicator lamp (MIL) indicates a system malfunction
- An SRS malfunction indicator lamp (MIL) indicates a system malfunction
- is significantly reduced or The strength or continuity of the load bearing structure within 30cm of any seat belt anchorage (a ’prescribed area’): inadequately repaired
Other
▲ 10.3% better
45.3 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
- Lambda coefficient outside the default limits or the range specified by the manufacturer
- Emissions test unable to be completed
- Engine MIL inoperative or indicating a malfunction
- Emissions levels exceed default limits
Fault rate by mileage segment
Model
Year average
* Metric: faults per 100 tests.
Most common faults (Top 10)
Brake pipe damaged or excessively corroded
ADVISORY
Occurrences: 4,127
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 4,115
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 3,088
A suspension component: excessively damaged or corroded
ADVISORY
Occurrences: 2,911
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 2,390
A spring: or spring component fractured or seriously weakened
ADVISORY
Occurrences: 1,978
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 1,656
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 1,236
Exhaust system has a major leak or is insecure
ADVISORY
Occurrences: 1,041
A transmission shaft constant velocity joint boot: severely deteriorated
MINOR
Occurrences: 1,004
Serious faults (Top 10)
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 735
Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
FAIL
Occurrences: 522
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 482
Brake pipe damaged or excessively corroded
FAIL
Occurrences: 469
A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
FAIL
Occurrences: 458
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 445
A suspension joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 377
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 373
Beam image obviously incorrect
FAIL
Occurrences: 333
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 265