Audi A4 - 2011
231.8 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 A4, model year 2011.
Sample size: 14,936 cars, 33,144 tests and 76,832 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: 14,936 cars
The 2011 Audi A4 has a lower overall defect rate, with 232 issues per 100 vehicles, compared to the yearly average of 271 defects, reflecting a 14% improvement. Mileage-related trends show that defect rates increase as mileage increases, particularly in the highest category of over 124,000 miles, which stands at 350 defects per 100. The Audi A4 performs significantly better than average in several categories, notably in brakes, steering, lights and electrics, and equipment, with defects rates substantially lower than those of similar vehicles. Overall, this model demonstrates strong reliability, particularly in crucial safety features such as braking and steering.
Cars by mileage segment
Total: 14,936 cars
Categories
Brakes
▲ 32.2% better
74.5 faults / 100 tests
Year avg: 109.9 / 100 tests
- Brake disc or drum: insecure, fractured or otherwise likely to fail
- Brake disc or drum: significantly and obviously worn
- Brake lining or pad: worn below 1.5mm
- Brake lining or pad: worn below 1.5mm
- Significant brake effort recorded with no brake applied indicating a binding brake
Steering
▲ 72.2% better
4.4 faults / 100 tests
Year avg: 15.8 / 100 tests
- Free play in the steering, measured at the rim of the steering wheel is: excessive
- A steering ball joint: with excessive wear or free play
- A steering ball joint: with excessive wear or free play
- Steering rack gaiter or ball joint dust cover: damaged or deteriorated
- Excessive wear or play in a universal joint or a flexible coupling excessively deteriorated
Visibility
▲ 8.0% better
19.5 faults / 100 tests
Year avg: 21.2 / 100 tests
- Windscreen washers not working or not providing sufficient fluid to clear the windscreen
- Wiper blade: defective
- 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
Lights & Electrics
▲ 42.1% better
39.9 faults / 100 tests
Year avg: 68.9 / 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
- Lamp emitted colour, position or intensity not in accordance with the requirements
- The aim of a headlamp is not within limits laid down in the requirements
- Beam image obviously incorrect
Wheels & Suspension
▼ 6.6% worse
284.1 faults / 100 tests
Year avg: 266.4 / 100 tests
- 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
- Tyre tread depth not in accordance with the requirements
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
Body/Structure
▲ 22.7% better
24.2 faults / 100 tests
Year avg: 31.3 / 100 tests
- A transmission shaft constant velocity joint boot: severely deteriorated
- Exhaust system has a major leak or is insecure
- 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
- Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
Equipment
▲ 44.6% better
4.1 faults / 100 tests
Year avg: 7.4 / 100 tests
- Seat belt buckle missing, damaged or not functioning as intended
- A seat belt: webbing or flexible stalk significantly stretched or weakened
- A seat belt:
- ESC MIL indicates a system malfunction
- An SRS malfunction indicator lamp (MIL) indicates a system malfunction
Other
▲ 53.6% better
12.9 faults / 100 tests
Year avg: 27.8 / 100 tests
- Engine MIL inoperative or indicating a malfunction
- Any part of the noise suppression system: insecure
- 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)
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 13,971
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 11,376
A shock absorber damaged … or showing signs of severe leakage
ADVISORY
Occurrences: 4,481
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 4,121
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 3,428
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 2,939
A suspension component: excessively damaged or corroded
ADVISORY
Occurrences: 2,521
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 2,340
A transmission shaft constant velocity joint boot: severely deteriorated
MINOR
Occurrences: 1,599
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 1,493
Serious faults (Top 10)
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 2,340
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 1,156
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 1,065
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 1,017
A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
FAIL
Occurrences: 998
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 574
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 512
A shock absorber damaged … or showing signs of severe leakage
FAIL
Occurrences: 510
Beam image obviously incorrect
FAIL
Occurrences: 485
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 408