Audi Q8 - 2018
70.9 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 Q8, model year 2018.
Sample size: 861 cars, 1,977 tests and 1,402 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: 861 cars
The 2018 Audi Q8 has a significantly lower overall defect rate, with 71 defects per 100 vehicles compared to the yearly average of 120 defects per 100 vehicles, representing a 41% improvement. It shows notable trends in mileage-related defects, particularly in the 0–31,000 miles range where it has the highest defect rate compared to the average, but performs better as mileage increases. The Q8 stands out positively in categories such as brakes and steering, with defect rates of 43% and 0.5% respectively, which are much lower than the average. Other categories where it excels include visibility and lights & electrics, where it also has significantly fewer defects than the average. Overall, the Audi Q8 demonstrates a clear advantage in reliability compared to its peers from the same year.
Cars by mileage segment
Total: 861 cars
Categories
Brakes
▲ 37.4% better
43.1 faults / 100 tests
Year avg: 68.8 / 100 tests
- Brake lining or pad: worn below 1.5mm
- Brake disc or drum: significantly and obviously worn
- Warning device shows system malfunction
- Brake disc or drum: insecure, fractured or otherwise likely to fail
- Brake lining or pad: worn down to wear indicator
Steering
▲ 90.0% better
0.5 faults / 100 tests
Year avg: 5.0 / 100 tests
- Steering rack gaiter or ball joint dust cover: damaged or deteriorated
Visibility
▲ 38.1% better
8.6 faults / 100 tests
Year avg: 13.9 / 100 tests
- Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
- 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
- Windscreen or window excessively tinted: but not adversely affecting driver’s view
- Wiper blade: defective
- Wiper blade: missing or obviously not clearing the windscreen
Lights & Electrics
▲ 88.6% better
2.0 faults / 100 tests
Year avg: 17.6 / 100 tests
- The aim of a headlamp is not within limits laid down in the requirements
- Beam image obviously incorrect
- Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
- Headlamp reflector or lens: slightly defective
- Headlamp cleaning device: inoperative in the case of LED or gas discharge systems (HID)
Wheels & Suspension
▲ 32.6% better
85.4 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 suspension pin, bush, joint or bearing: excessively worn
- A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
Body/Structure
▲ 94.1% better
0.3 faults / 100 tests
Year avg: 5.1 / 100 tests
- A door will not open using the relevant control or close properly
Equipment
▲ 86.4% better
0.3 faults / 100 tests
Year avg: 2.2 / 100 tests
- A seat belt:
- An SRS malfunction indicator lamp (MIL) indicates a system malfunction
- An SRS malfunction indicator lamp (MIL) indicates a system malfunction
Other
▲ 77.1% better
1.6 faults / 100 tests
Year avg: 7.0 / 100 tests
- Engine MIL inoperative or indicating a malfunction
- Engine MIL inoperative or indicating a malfunction
- 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
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: 481
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 188
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 168
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 157
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 56
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 52
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 30
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 26
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 26
Wiper blade: defective
MINOR
Occurrences: 24
Serious faults (Top 10)
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 26
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 20
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 18
Brake lining or pad: worn down to wear indicator
FAIL
Occurrences: 13
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 13
A wheel: with a loose or missing wheel nut, bolt or stud
FAIL
Occurrences: 12
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 7
Warning device shows system malfunction
FAIL
Occurrences: 6
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 5
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 5