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Audi A5 - 2017

107.9 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 A5, model year 2017. Sample size: 16,948 cars, 40,183 tests and 43,355 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 16,948 cars

The 2017 Audi A5 has an overall defect rate of 108 per 100 vehicles, which is 19% lower than the average for its year, indicating it generally performs better in terms of defects. Notably, the A5 shows significantly lower issues in categories like brakes, steering, and visibility compared to the average car. For example, its brake defect rate is 45%, well below the average of 71%. Mileage trends reveal that defects tend to increase with higher mileage, but the A5's figures remain competitive across all mileage segments. Overall, this model's reliability stands out positively in several key areas.

Cars by mileage segment

Total: 16,948 cars

Categories

Brakes
▲ 38.6% better
44.5 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
  • Excessive roughness in operation of steering
  • Steering rack gaiter or ball joint dust cover: missing or no longer prevents the ingress of dirt etc.
  • Steering rack gaiter or ball joint dust cover: damaged or deteriorated
  • A steering ball joint: with excessive wear or free play
Visibility
▲ 33.8% better
9.6 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: missing or obviously not clearing the windscreen
  • Windscreen washers not working or not providing sufficient fluid to clear the windscreen
  • Wiper blade: defective
  • Wiper blade: missing or obviously not clearing the windscreen
Lights & Electrics
▲ 80.9% better
3.9 faults / 100 tests
Year avg: 20.4 / 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
  • Reflector defective or damaged: by up to 50% of the reflecting surface
  • A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
  • Headlamp cleaning device: inoperative in the case of LED or gas discharge systems (HID)
Wheels & Suspension
▼ 4.5% worse
149.6 faults / 100 tests
Year avg: 143.1 / 100 tests
  • A suspension pin, bush, joint or bearing: excessively worn
  • A spring: or spring component fractured or seriously weakened
  • Tyre tread depth not in accordance with the requirements
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • A spring: or spring component fractured or seriously weakened
Body/Structure
▲ 70.0% better
2.1 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
  • 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 body panel or body component: damaged or corroded and likely to cause injury when grazed or contacted, or insecure
Equipment
▲ 48.1% better
1.4 faults / 100 tests
Year avg: 2.7 / 100 tests
  • A seat belt: webbing or flexible stalk significantly stretched or weakened
  • Seat belt buckle missing, damaged or not functioning as intended
  • A seat belt:
  • An SRS malfunction indicator lamp (MIL) indicates a system malfunction
  • An SRS malfunction indicator lamp (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
  • Engine MIL inoperative or indicating a malfunction
  • Engine MIL inoperative or indicating a malfunction
  • Engine MIL inoperative or indicating a malfunction
  • Emissions levels exceed default limits

Fault rate by mileage segment

Model    Year average
0 318 0–31,000 mi 31,000–62,000 62,000–93,000 93,000–124,000 124,000+
* Metric: faults per 100 tests.

Most common faults (Top 10)

Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 10,620
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 6,494
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 4,096
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 2,568
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 2,232
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 2,187
A spring: or spring component fractured or seriously weakened
ADVISORY
Occurrences: 1,687
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 1,503
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 1,151
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 1,024

Serious faults (Top 10)

A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 2,232
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 1,151
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 973
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 599
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 371
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 367
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 354
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 168
A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
FAIL
Occurrences: 159
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 150