Audi A3 - 2017
98.9 faults per 100 tests
Year average for all cars of 2017 is 137.4 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Audi A3, model year 2017.
Sample size: 38,579 cars, 85,285 tests and 84,332 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: 38,579 cars
The 2017 Audi A3 has an overall defect rate of 99 defects per 100 vehicles, which is significantly lower than the yearly average of 134 defects per 100 vehicles, representing a 26% improvement. The model shows increasing defect rates with mileage, particularly in the 62,000-93,000 mile range, but still performs better than average across all mileage brackets. Notably, it excels in categories such as Steering, with only 0.33% of vehicles having defects compared to the average of 5.15%, and also shows fewer issues in Visibility, Lights & Electrics, and Body/Structure. Overall, this model stands out positively compared to its peers from the same year.
Cars by mileage segment
Total: 38,579 cars
Categories
Brakes
▲ 19.6% better
58.3 faults / 100 tests
Year avg: 72.5 / 100 tests
- Brake lining or pad: worn below 1.5mm
- Brake disc or drum: significantly and obviously worn
- Excessive fluctuation in brake effort through each wheel revolution
- Brake disc or drum: insecure, fractured or otherwise likely to fail
- Brake lining or pad: worn below 1.5mm
Steering
▲ 94.6% better
0.3 faults / 100 tests
Year avg: 5.6 / 100 tests
- A steering ball joint: with excessive wear or free play
- Steering rack gaiter or ball joint dust cover: damaged or deteriorated
- A steering ball joint: with excessive wear or free play
- 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
Visibility
▲ 23.4% better
11.1 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
- 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
Lights & Electrics
▲ 62.7% better
7.6 faults / 100 tests
Year avg: 20.4 / 100 tests
- Lamp: emitted colour, position or intensity not in accordance with the requirements
- Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
- The aim of a headlamp is not within limits laid down in the requirements
- Lamp: multiple light source up to a half not functioning
- The aim of a headlamp is not within limits laid down in the requirements
Wheels & Suspension
▲ 21.0% better
113.1 faults / 100 tests
Year avg: 143.1 / 100 tests
- Tyre tread depth not in accordance with the requirements
- A shock absorber damaged … or showing signs of severe leakage
- 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 tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
Body/Structure
▲ 75.7% better
1.7 faults / 100 tests
Year avg: 7.0 / 100 tests
- A transmission shaft constant velocity joint boot: severely deteriorated
- 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
- Fuel system: leaking, or missing or ineffective filler cap
- A transmission shaft flexible coupling: excessively deteriorated
Equipment
▲ 51.9% better
1.3 faults / 100 tests
Year avg: 2.7 / 100 tests
- An SRS malfunction indicator lamp (MIL) indicates a system malfunction
- A seat belt:
- A seat belt: or flexible stalk damaged
- A seat belt: webbing or flexible stalk significantly stretched or weakened
- ESC MIL indicates a system malfunction
Other
▲ 51.1% better
4.4 faults / 100 tests
Year avg: 9.0 / 100 tests
- Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
- Emissions levels exceed default limits
- Engine MIL inoperative or indicating a malfunction
- Lambda coefficient outside the default limits or the range specified by the manufacturer
- 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: 21,356
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 10,001
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 9,479
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 8,777
A shock absorber damaged … or showing signs of severe leakage
ADVISORY
Occurrences: 3,420
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 2,753
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 2,375
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 2,151
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 2,070
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 1,998
Serious faults (Top 10)
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 2,151
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 2,070
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 1,173
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 1,165
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 608
A shock absorber damaged … or showing signs of severe leakage
FAIL
Occurrences: 570
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 428
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 405
Brake disc or drum: significantly and obviously worn
FAIL
Occurrences: 233
Tyre pressure monitoring system malfunctioning or obviously not working
FAIL
Occurrences: 211