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Audi A5 - 2018

106.9 faults per 100 tests
Year average for all cars of 2018 is 123.2 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Audi A5, model year 2018. Sample size: 13,547 cars, 32,998 tests and 35,261 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 13,547 cars

The 2018 Audi A5 demonstrates a lower overall defect rate compared to the average vehicle of the same year, with 107 defects per 100 vehicles against the average of 120. This model particularly excels in categories such as brakes, steering, and body structure, showing significantly fewer issues than average. Additionally, while defects related to mileage increase, the A5 maintains a relatively steady rate across all mileage segments, especially performing well in the lower mileage ranges. Overall, the Audi A5 stands out positively for its reliability in key safety and structural areas.

Cars by mileage segment

Total: 13,547 cars

Categories

Brakes
▲ 29.9% better
48.2 faults / 100 tests
Year avg: 68.8 / 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
▲ 96.0% better
0.2 faults / 100 tests
Year avg: 5.0 / 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.
  • A steering ball joint: with excessive wear or free play
  • Steering rack gaiter or ball joint dust cover: damaged or deteriorated
  • Excessive roughness in operation of steering
Visibility
▲ 25.9% better
10.3 faults / 100 tests
Year avg: 13.9 / 100 tests
  • Wiper blade: defective
  • Wiper blade: missing or obviously not clearing 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
  • Windscreen or window excessively tinted: but not adversely affecting driver’s view
Lights & Electrics
▲ 76.7% better
4.1 faults / 100 tests
Year avg: 17.6 / 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 headlamp: missing, inoperative or more than ½ not functioning in the case of LED
  • A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
  • Reflector defective or damaged: by up to 50% of the reflecting surface
Wheels & Suspension
▼ 16.0% worse
147.0 faults / 100 tests
Year avg: 126.7 / 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
▲ 86.3% better
0.7 faults / 100 tests
Year avg: 5.1 / 100 tests
  • A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
  • Bumper: insecure or with damage likely to cause injury when grazed or contacted
  • Exhaust system has a major leak or is insecure
  • A transmission shaft constant velocity joint boot: severely deteriorated
  • A main load-bearing structural member: fractured or deformed such that structural rigidity is significantly reduced
Equipment
▲ 50.0% better
1.1 faults / 100 tests
Year avg: 2.2 / 100 tests
  • A seat belt: webbing or flexible stalk significantly stretched or weakened
  • A seat belt: or flexible stalk damaged
  • An SRS malfunction indicator lamp (MIL) indicates a system malfunction
  • A seat belt:
  • Seat belt buckle missing, damaged or not functioning as intended
Other
▲ 68.6% better
2.2 faults / 100 tests
Year avg: 7.0 / 100 tests
  • Engine MIL inoperative or indicating a malfunction
  • Emissions levels exceed default limits
  • 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

Fault rate by mileage segment

Model    Year average
0 307 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: 8,645
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 4,813
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 3,770
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 2,807
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 2,048
A spring: or spring component fractured or seriously weakened
ADVISORY
Occurrences: 1,540
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 1,445
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 1,289
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 989
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 955

Serious faults (Top 10)

A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 1,445
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 955
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 816
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 540
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 321
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 293
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 228
Brake lining or pad: worn down to wear indicator
FAIL
Occurrences: 110
A shock absorber damaged … or showing signs of severe leakage
FAIL
Occurrences: 103
A wheel: with a loose or missing wheel nut, bolt or stud
FAIL
Occurrences: 83