Audi S4 - 2006
280.1 faults per 100 tests
Year average for all cars of 2006 is 371.9 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Audi S4, model year 2006.
Sample size: 166 cars, 381 tests and 1,067 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: 166 cars
The 2006 Audi S4 has a significantly lower overall defect rate compared to the average car of the same year, with 280 defects per 100 vehicles as opposed to 369. While tyre wear is commonly noted across vehicles, this model excels in areas such as brakes, steering, and visibility, showing much better performance than average in these categories. Notably, defects related to brakes are 53% lower than the average, which indicates a strong braking system. However, it does show a higher incidence of 'Other' defects, which are 64% above average, suggesting potential areas for improvement. Overall, the S4 demonstrates a robust performance profile compared to its peers, particularly in critical safety-related categories.
Cars by mileage segment
Total: 166 cars
Categories
Brakes
▲ 52.3% better
73.5 faults / 100 tests
Year avg: 154.1 / 100 tests
- Brake hose ferrules: excessively corroded
- Brake pipe damaged or excessively corroded
- Brake disc or drum: significantly and obviously worn
- Brake disc or drum: insecure, fractured or otherwise likely to fail
- Brake lining or pad: worn below 1.5mm
Steering
▲ 29.7% better
14.2 faults / 100 tests
Year avg: 20.2 / 100 tests
- Steering rack gaiter or ball joint dust cover: damaged or deteriorated
- A steering ball joint: with excessive wear or free play
- Power steering pipe, hose or wiring: excessively damaged or corroded
- Power steering fluid leaking or system malfunctioning
- Steering rack gaiter or ball joint dust cover: missing or no longer prevents the ingress of dirt etc.
Visibility
▲ 52.7% better
13.1 faults / 100 tests
Year avg: 27.7 / 100 tests
- 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
- Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
- Wiper blade: missing or obviously not clearing the windscreen
- Wiper blade: defective
Lights & Electrics
▲ 59.9% better
44.6 faults / 100 tests
Year avg: 111.1 / 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 reflector or lens: slightly defective
- Lamp: emitted colour, position or intensity not in accordance with the requirements
- Lamp emitted colour, position or intensity not in accordance with the requirements
- Product on the lens or light source which obviously reduces light intensity or changes emitted colour to other than white or yellow
Wheels & Suspension
▲ 6.9% better
292.9 faults / 100 tests
Year avg: 314.5 / 100 tests
- A suspension pin, bush, joint or bearing: excessively worn
- Tyre tread depth not in accordance with the requirements
- A suspension component: excessively damaged or corroded
- A suspension joint dust cover: severely deteriorated
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
Body/Structure
▲ 25.9% better
44.1 faults / 100 tests
Year avg: 59.5 / 100 tests
- Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
- A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
- Body, cab or chassis: excessively corroded at mounting points
- Exhaust system has a major leak or is insecure
- A transmission shaft constant velocity joint boot: severely deteriorated
Equipment
▲ 68.6% better
3.7 faults / 100 tests
Year avg: 11.8 / 100 tests
- Seat belt buckle missing, damaged or not functioning as intended
- An SRS malfunction indicator lamp (MIL) indicates a system malfunction
- ESC MIL indicates a system malfunction
Other
▼ 65.5% worse
74.0 faults / 100 tests
Year avg: 44.7 / 100 tests
- 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
- Emissions levels exceed default limits
- Engine MIL inoperative or indicating a malfunction
- Exhaust noise levels in excess of those permitted
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: 183
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 108
A suspension joint dust cover: severely deteriorated
MINOR
Occurrences: 106
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 57
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 34
A suspension component: excessively damaged or corroded
ADVISORY
Occurrences: 33
A shock absorber damaged … or showing signs of severe leakage
ADVISORY
Occurrences: 32
Exhaust system has a major leak or is insecure
ADVISORY
Occurrences: 28
Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
ADVISORY
Occurrences: 28
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 26
Serious faults (Top 10)
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 24
A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
FAIL
Occurrences: 15
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 9
A suspension joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 9
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 9
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 7
Emissions levels exceed default limits
FAIL
Occurrences: 5
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 5
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
FAIL
Occurrences: 4
Emissions levels exceed the manufacturer’s specified limits
FAIL
Occurrences: 4