Audi A8 - 2021
38.1 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 A8, model year 2021.
Sample size: 317 cars, 766 tests and 292 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: 317 cars
The 2021 Audi A8 has a significantly lower overall defect rate of 38 per 100 compared to the yearly average of 79 per 100, indicating a 51.5% improvement. This model performs particularly well in areas such as brakes, steering, visibility, and lights and electrics, with notable reductions in defect rates compared to the average car. Interestingly, while tyre wear is a common issue across vehicles, it is not highlighted as a significant concern for this model. Additionally, defect rates tend to rise with mileage, but even at lower mileages, the Audi A8 shows a strong performance relative to its peers.
Cars by mileage segment
Total: 317 cars
Categories
Brakes
▲ 52.3% better
19.1 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
- Brake hose damaged and likely to fail
- Brake lining or pad: worn below 1.5mm
- Any component insecure or inadequately mounted
Steering
▲ 100.0% better
0.0 faults / 100 tests
Year avg: 0.7 / 100 tests
Visibility
▲ 49.7% better
7.3 faults / 100 tests
Year avg: 14.5 / 100 tests
- Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
- 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
- Windscreen washers not working or not providing sufficient fluid to clear the windscreen
Lights & Electrics
▲ 81.3% better
2.1 faults / 100 tests
Year avg: 11.2 / 100 tests
- The aim of a headlamp is not within limits laid down in the requirements
- Headlamp cleaning device: inoperative in the case of LED or gas discharge systems (HID)
- Headlamp cleaning device: inoperative in the case of LED or gas discharge systems (HID)
- Electrical wiring insulation: in such a condition there is an imminent risk of fire or formation of sparks
Wheels & Suspension
▲ 46.7% better
46.5 faults / 100 tests
Year avg: 87.3 / 100 tests
- Tyre tread depth not in accordance with the requirements
- 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
- 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
Body/Structure
▲ 100.0% better
0.0 faults / 100 tests
Year avg: 2.1 / 100 tests
Equipment
▲ 100.0% better
0.0 faults / 100 tests
Year avg: 1.5 / 100 tests
Other
▲ 51.9% better
1.3 faults / 100 tests
Year avg: 2.7 / 100 tests
- Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
- Emissions test unable to be completed
- 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: 109
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 32
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 23
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 19
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 18
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 17
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 14
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 12
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 10
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
PRS
Occurrences: 7
Serious faults (Top 10)
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 12
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 10
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 3
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 2
Any component insecure or inadequately mounted
FAIL
Occurrences: 2
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 2
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 1
Headlamp cleaning device: inoperative in the case of LED or gas discharge systems (HID)
FAIL
Occurrences: 1
Electrical wiring insulation: in such a condition there is an imminent risk of fire or formation of sparks
FAIL
Occurrences: 1
A gas, air or fluid suspension system inoperative
FAIL
Occurrences: 1