Audi A8 - 2008
175.4 faults per 100 tests
Year average for all cars of 2008 is 340.8 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Audi A8, model year 2008.
Sample size: 766 cars, 1,475 tests and 2,587 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: 766 cars
The 2008 Audi A8 exhibits an overall defect rate of 175 per 100 vehicles, which is significantly better than the yearly average of 337 per 100 vehicles, marking a 48% reduction in defects. It shows a clear trend that as mileage increases, defects also rise, particularly notable beyond 124,000 miles. The model excels in several key areas including brakes, steering, and lights and electrics, demonstrating lower defect rates compared to the average for similar vehicles. In contrast, tyre wear, while present, is not highlighted as a primary concern for this model compared to more critical categories where it performs notably better. Overall, the Audi A8 stands out positively for its reliability in various critical components.
Cars by mileage segment
Total: 766 cars
Categories
Brakes
▲ 50.9% better
65.4 faults / 100 tests
Year avg: 133.1 / 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 pipe damaged or excessively corroded
Steering
▲ 76.7% better
4.2 faults / 100 tests
Year avg: 18.0 / 100 tests
- 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
- A steering ball joint: with excessive wear or free play
- 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
▲ 17.0% better
21.0 faults / 100 tests
Year avg: 25.3 / 100 tests
- Windscreen washers not working or not providing sufficient fluid to clear the windscreen
- Wiper blade: missing or obviously not clearing the windscreen
- Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
- Wiper blade: defective
- Windscreen washers not working or not providing sufficient fluid to clear the windscreen
Lights & Electrics
▲ 59.1% better
37.7 faults / 100 tests
Year avg: 92.2 / 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
- The aim of a headlamp is not within limits laid down in the requirements
- A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
- Lamp: multiple light source up to a half not functioning
- Product on the lens or light source which obviously reduces light intensity or changes emitted colour to other than white or yellow
Wheels & Suspension
▲ 40.5% better
184.5 faults / 100 tests
Year avg: 310.3 / 100 tests
- Tyre tread depth not in accordance with the requirements
- A suspension pin, bush, joint or bearing: excessively worn
- 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
- A suspension pin, bush, joint or bearing: excessively worn
Body/Structure
▲ 73.1% better
13.8 faults / 100 tests
Year avg: 51.3 / 100 tests
- A transmission shaft constant velocity joint boot: severely deteriorated
- A door hinge, catch or pillar: excessively deteriorated
- A door will not open using the relevant control or close properly
- 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
Equipment
▲ 67.3% better
3.3 faults / 100 tests
Year avg: 10.1 / 100 tests
- ESC MIL indicates a system malfunction
- A seat belt:
- Seat belt buckle missing, damaged or not functioning as intended
- A seat belt: webbing or flexible stalk significantly stretched or weakened
- An SRS malfunction indicator lamp (MIL) indicates a system malfunction
Other
▲ 50.0% better
20.6 faults / 100 tests
Year avg: 41.2 / 100 tests
- Engine MIL inoperative or indicating a malfunction
- Any part of the noise suppression system: insecure
- 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
- Lambda coefficient outside the default limits or the range specified by the manufacturer
Fault rate by mileage segment
Model
Year average
* Metric: faults per 100 tests.
Most common faults (Top 10)
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 593
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 397
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 206
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 106
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 100
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 85
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 79
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 66
A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
MINOR
Occurrences: 55
Lamp: multiple light source up to a half not functioning
MINOR
Occurrences: 50
Serious faults (Top 10)
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 85
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: 31
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 25
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 15
A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
FAIL
Occurrences: 14
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 13
A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
FAIL
Occurrences: 11
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 11
Stop lamp(s): all missing or inoperative
FAIL
Occurrences: 9