Audi A5 - 2021
72.6 faults per 100 tests
Year average for all cars of 2021 is 80.0 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Audi A5, model year 2021.
Sample size: 6,345 cars, 15,615 tests and 11,340 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: 6,345 cars
The 2021 Audi A5 has an overall defect rate of 73 per 100 vehicles, which is slightly lower than the average of 79 per 100 for its year, representing a 7.6% improvement. The model exhibits particularly strong performance in categories such as brakes, steering, visibility, lights, and body structure, all showing significantly lower defect rates compared to the average. However, it stands out negatively in wheels, suspensions, and axles with a defect rate of 106 per 100, exceeding the average of 87 per 100. Mileage trends indicate that the defect rate increases with higher mileage, although the A5 maintains a competitive position within its segment across all mileage ranges.
Cars by mileage segment
Total: 6,345 cars
More model years for Audi A5
Other models from Audi
Categories
Brakes
▲ 44.8% better
22.1 faults / 100 tests
Year avg: 40.0 / 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
▲ 85.7% better
0.1 faults / 100 tests
Year avg: 0.7 / 100 tests
- 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.
Visibility
▲ 48.3% better
7.5 faults / 100 tests
Year avg: 14.5 / 100 tests
- Wiper blade: defective
- 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: missing or obviously not clearing the windscreen
Lights & Electrics
▲ 50.9% better
5.5 faults / 100 tests
Year avg: 11.2 / 100 tests
- 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
- The aim of a headlamp is not within limits laid down in the requirements
- 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
- A reversing lamp inoperative
Wheels & Suspension
▼ 21.8% worse
106.3 faults / 100 tests
Year avg: 87.3 / 100 tests
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
- A spring: or spring component fractured or seriously weakened
- Tyre tread depth not in accordance with the requirements
- A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
- Tyre tread depth not in accordance with the requirements
Body/Structure
▲ 90.5% better
0.2 faults / 100 tests
Year avg: 2.1 / 100 tests
- Bumper: insecure or with damage likely to cause injury when grazed or contacted
- A door will not open using the relevant control or close properly
- 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
- Fuel system: leaking, or missing or ineffective filler cap
Equipment
▲ 33.3% better
1.0 faults / 100 tests
Year avg: 1.5 / 100 tests
- Seat belt buckle missing, damaged or not functioning as intended
- Seat belt not functioning as intended or of an incorrect type
- An SRS malfunction indicator lamp (MIL) indicates a system malfunction
- A seat belt:
- A seat belt: or flexible stalk damaged
Other
▲ 7.4% better
2.5 faults / 100 tests
Year avg: 2.7 / 100 tests
- Engine MIL inoperative or indicating a malfunction
- 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
- 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: 3,538
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 1,608
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 943
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 683
A spring: or spring component fractured or seriously weakened
ADVISORY
Occurrences: 515
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 411
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 384
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 339
A shock absorber damaged … or showing signs of severe leakage
ADVISORY
Occurrences: 324
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 298
Serious faults (Top 10)
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 411
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 339
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 298
A shock absorber damaged … or showing signs of severe leakage
FAIL
Occurrences: 254
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 86
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 66
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 60
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 58
An SRS malfunction indicator lamp (MIL) indicates a system malfunction
FAIL
Occurrences: 50
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 47