Audi TT - 2018
81.2 faults per 100 tests
Year average for all cars of 2018 is 123.2 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Audi TT, model year 2018.
Sample size: 4,890 cars, 11,962 tests and 9,712 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: 4,890 cars
The 2018 Audi TT exhibits a significantly lower overall defect rate compared to the average car of the same year, with 81 defects per 100 vehicles versus 120. The model shows consistent performance across different mileage brackets, with increasing defect rates as mileage rises, particularly peaking at about 245 defects per 100 vehicles for those over 124,000 miles. Notably, the Audi TT stands out positively in several categories, including brakes and steering, where it has notably fewer defects than the average. In contrast, there are no categories where the model performs worse than average, indicating a solid reliability profile.
Cars by mileage segment
Total: 4,890 cars
Categories
Brakes
▲ 23.8% better
52.4 faults / 100 tests
Year avg: 68.8 / 100 tests
- Brake disc or drum: insecure, fractured or otherwise likely to fail
- Brake disc or drum: significantly and obviously worn
- Excessive fluctuation in brake effort through each wheel revolution
- Brake lining or pad: worn below 1.5mm
- Brake lining or pad: worn below 1.5mm
Steering
▲ 98.0% better
0.1 faults / 100 tests
Year avg: 5.0 / 100 tests
- A steering ball joint: with excessive wear or free play
- Free play in the steering, measured at the rim of the steering wheel is: excessive
Visibility
▲ 35.3% better
9.0 faults / 100 tests
Year avg: 13.9 / 100 tests
- 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
- An obstruction: materially affecting the driver’s view of the road through the swept area of the windscreen or an obligatory external mirror not visible
- Wiper blade: defective
- Wiper blade: missing or obviously not clearing the windscreen
Lights & Electrics
▲ 71.6% better
5.0 faults / 100 tests
Year avg: 17.6 / 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
- Headlamp cleaning device: inoperative in the case of LED or gas discharge systems (HID)
- The aim of a headlamp is not within limits laid down in the requirements
- A rear registration plate lamp or light source missing or inoperative: when rear registration plate has only one lamp or all lamps not working
- Headlamp cleaning device: inoperative in the case of LED or gas discharge systems (HID)
Wheels & Suspension
▲ 26.4% better
93.2 faults / 100 tests
Year avg: 126.7 / 100 tests
- Tyre tread depth not in accordance with the requirements
- A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
- Tyre tread depth not in accordance with the requirements
Body/Structure
▲ 92.2% better
0.4 faults / 100 tests
Year avg: 5.1 / 100 tests
- A transmission shaft flexible coupling: excessively deteriorated
- Exhaust system has a major leak or is insecure
- Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
- A transmission shaft constant velocity joint boot: severely deteriorated
- Fuel system: leaking, or missing or ineffective filler cap
Equipment
▲ 81.8% better
0.4 faults / 100 tests
Year avg: 2.2 / 100 tests
- An SRS malfunction indicator lamp (MIL) indicates a system malfunction
- A seat belt: webbing or flexible stalk significantly stretched or weakened
- A seat belt: or flexible stalk damaged
- A seat belt:
- An SRS malfunction indicator lamp (MIL) indicates a system malfunction
Other
▲ 74.3% better
1.8 faults / 100 tests
Year avg: 7.0 / 100 tests
- Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
- Emissions levels exceed default limits
- Lambda coefficient outside the default limits or the range specified by the manufacturer
- Engine MIL inoperative or indicating a malfunction
- Any part of the noise suppression system: insecure
Fault rate by mileage segment
Model
Year average
* Metric: faults per 100 tests.
Most common faults (Top 10)
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 2,960
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 1,335
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 1,294
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 1,210
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 366
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 291
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 285
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 231
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 208
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 145
Serious faults (Top 10)
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 291
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 231
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 145
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 95
A rear registration plate lamp or light source missing or inoperative: when rear registration plate has only one lamp or all lamps not working
FAIL
Occurrences: 44
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 35
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 24
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 24
Headlamp cleaning device: inoperative in the case of LED or gas discharge systems (HID)
FAIL
Occurrences: 24
Excessive fluctuation in brake effort through each wheel revolution
FAIL
Occurrences: 19