Audi S4 - 2011
153.4 faults per 100 tests
Year average for all cars of 2011 is 274.4 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Audi S4, model year 2011.
Sample size: 186 cars, 393 tests and 603 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: 186 cars
The 2011 Audi S4 has an overall defect rate of 153 per 100 vehicles, which is significantly lower than the average of 271 per 100, representing a 43% improvement. It shows a notable trend of fewer defects at lower mileages, particularly in the 0–31,000 miles category, where it reports 400 defects per 100, compared to an average of 285. Key areas where the S4 excels include brakes and steering, with defect rates of 55% and 4% respectively, both significantly better than the average. Other categories, such as visibility and lights, also show lower defect rates compared to the yearly average, indicating strong performance in these aspects.
Cars by mileage segment
Total: 186 cars
Categories
Brakes
▲ 50.0% better
55.0 faults / 100 tests
Year avg: 109.9 / 100 tests
- Brake lining or pad: worn below 1.5mm
- Brake disc or drum: insecure, fractured or otherwise likely to fail
- Brake disc or drum: significantly and obviously worn
- Brake hose ferrules: excessively corroded
- Flexible brake hose: slightly damaged, chafed or twisted
Steering
▲ 77.2% better
3.6 faults / 100 tests
Year avg: 15.8 / 100 tests
- Steering rack gaiter or ball joint dust cover: missing or no longer prevents the ingress of dirt etc.
- Free play in the steering, measured at the rim of the steering wheel is: excessive
- A steering linkage component: fractured or deformed
Visibility
▲ 30.2% better
14.8 faults / 100 tests
Year avg: 21.2 / 100 tests
- Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
- Wiper blade: missing or obviously not clearing the windscreen
- 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
- Wiper blade: defective
Lights & Electrics
▲ 75.6% better
16.8 faults / 100 tests
Year avg: 68.9 / 100 tests
- 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
- A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
- Lamp emitted colour, position or intensity not in accordance with the requirements
- Headlamp levelling device inoperative
Wheels & Suspension
▲ 28.9% better
189.3 faults / 100 tests
Year avg: 266.4 / 100 tests
- Tyre tread depth not in accordance with the requirements
- A suspension pin, bush, joint or bearing: excessively worn
- A suspension pin, bush, joint or bearing: excessively worn
- A shock absorber damaged … or showing signs of severe leakage
- A suspension component: excessively damaged or corroded
Body/Structure
▲ 52.7% better
14.8 faults / 100 tests
Year avg: 31.3 / 100 tests
- 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
- Exhaust system has a major leak or is insecure
- A transmission shaft constant velocity joint boot: severely deteriorated
- Exhaust system has a major leak or is insecure
Equipment
▲ 73.0% better
2.0 faults / 100 tests
Year avg: 7.4 / 100 tests
- Seat belt buckle missing, damaged or not functioning as intended
- ESC MIL indicates a system malfunction
Other
▲ 61.5% better
10.7 faults / 100 tests
Year avg: 27.8 / 100 tests
- Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
- Emissions levels exceed the manufacturer’s specified limits
- Emissions test unable to be completed
- Emissions levels exceed default limits
- Emission control equipment fitted by the manufacturer: missing, obviously modified or obviously defective
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: 99
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 98
A shock absorber damaged … or showing signs of severe leakage
ADVISORY
Occurrences: 34
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 30
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 30
A suspension component: excessively damaged or corroded
ADVISORY
Occurrences: 27
Brake hose ferrules: excessively corroded
ADVISORY
Occurrences: 22
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 22
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 22
Exhaust system has a major leak or is insecure
ADVISORY
Occurrences: 15
Serious faults (Top 10)
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 30
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 9
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 9
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 8
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 7
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 6
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 5
Emissions levels exceed default limits
FAIL
Occurrences: 4
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 4
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 4