Audi Q8 - 2021
61.5 faults per 100 tests
Year average for all cars of 2021 is 80.0 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Audi Q8, model year 2021.
Sample size: 1,288 cars, 3,238 tests and 1,991 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: 1,288 cars
The 2021 Audi Q8 has an overall defect rate of 61 out of 100, which is significantly lower than the average for its year at 79 defects per 100 vehicles, marking a 21.7% improvement. Notably, the Q8 excels in several areas, including steering, where it has no reported defects compared to the average of 0.73%, and it also shows fewer issues with visibility and lights and electrics. Mileage trends reveal that defect rates slightly increase with higher mileage, but the model consistently performs better than the average across all mileage segments. Overall, the Q8 stands out positively for its low defect rates in crucial categories.
Cars by mileage segment
Total: 1,288 cars
Categories
Brakes
▲ 18.5% better
32.6 faults / 100 tests
Year avg: 40.0 / 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
- Excessive fluctuation in brake effort through each wheel revolution
Steering
▲ 100.0% better
0.0 faults / 100 tests
Year avg: 0.7 / 100 tests
Visibility
▲ 45.5% better
7.9 faults / 100 tests
Year avg: 14.5 / 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
- Wiper blade: missing or obviously not clearing the windscreen
- Wiper blade: defective
- Windscreen washers not working or not providing sufficient fluid to clear the windscreen
Lights & Electrics
▲ 80.4% better
2.2 faults / 100 tests
Year avg: 11.2 / 100 tests
- A lens defective: which has no effect on emitted light
- An obligatory rear fog lamp missing, or a front or rear fog lamp inoperative or in the case of a multiple light source more than 1/2 not functioning
- The aim of a headlamp is not within limits laid down in the requirements
- The aim of a headlamp is not within limits laid down in the requirements
- Headlamp reflector or lens: slightly defective
Wheels & Suspension
▲ 10.5% better
78.1 faults / 100 tests
Year avg: 87.3 / 100 tests
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
- A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
- 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
- Tyre tread depth not in accordance with the requirements
Body/Structure
▲ 52.4% better
1.0 faults / 100 tests
Year avg: 2.1 / 100 tests
- A transmission shaft constant velocity joint boot: severely deteriorated
- A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
- A body panel or body component: damaged or corroded and likely to cause injury when grazed or contacted, or 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
Equipment
▲ 86.7% better
0.2 faults / 100 tests
Year avg: 1.5 / 100 tests
- An SRS malfunction indicator lamp (MIL) indicates a system malfunction
- A seat belt:
Other
▲ 66.7% better
0.9 faults / 100 tests
Year avg: 2.7 / 100 tests
- Engine MIL inoperative or indicating a malfunction
- Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
- Engine MIL inoperative or indicating a malfunction
- Any part of the noise suppression system: insecure
- Engine MIL inoperative or indicating a malfunction
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: 818
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 234
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 231
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 130
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 93
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 68
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 61
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 58
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 35
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 32
Serious faults (Top 10)
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 68
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 58
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 35
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 12
A wheel: with a loose or missing wheel nut, bolt or stud
FAIL
Occurrences: 8
Excessive fluctuation in brake effort through each wheel revolution
FAIL
Occurrences: 7
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 7
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 6
Brake disc or drum: significantly and obviously worn
FAIL
Occurrences: 5
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 4