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Audi A6 - 2018

87.9 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 A6, model year 2018. Sample size: 9,218 cars, 20,801 tests and 18,279 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 9,218 cars

The 2018 Audi A6 displays a notably lower overall defect rate, with 88 defects per 100 vehicles compared to the yearly average of 120, representing a 27% improvement. While there is an increase in defects with higher mileages, the model performs significantly better in categories such as brakes and steering, showing 38% and 97% fewer defects respectively than the average. Additionally, it excels in visibility and lights & electrics, with a marked reduction in issues compared to typical vehicles from the same year. Overall, the Audi A6 is a reliable choice, particularly in key safety-related areas.

Cars by mileage segment

Total: 9,218 cars

Categories

Brakes
▲ 39.7% better
41.5 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
▲ 98.0% better
0.1 faults / 100 tests
Year avg: 5.0 / 100 tests
  • 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: missing or no longer prevents the ingress of dirt etc.
  • Excessive roughness in operation of steering
  • Track rod or drag link ends seriously misaligned
Visibility
▲ 26.6% better
10.2 faults / 100 tests
Year avg: 13.9 / 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
  • Windscreen washers not working or not providing sufficient fluid to clear the windscreen
Lights & Electrics
▲ 75.6% better
4.3 faults / 100 tests
Year avg: 17.6 / 100 tests
  • The aim of a headlamp is not within limits laid down in the requirements
  • Headlamp cleaning device: inoperative in the case of LED or gas discharge systems (HID)
  • The aim of a headlamp is not within limits laid down in the requirements
  • A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
  • A direction indicator: lamp with a multiple light source up to 1/2 not functioning
Wheels & Suspension
▲ 10.7% better
113.1 faults / 100 tests
Year avg: 126.7 / 100 tests
  • A suspension pin, bush, joint or bearing: excessively worn
  • Tyre tread depth not in accordance with the requirements
  • Tyre tread depth not in accordance with the requirements
  • 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
Body/Structure
▲ 45.1% better
2.8 faults / 100 tests
Year avg: 5.1 / 100 tests
  • A transmission shaft constant velocity joint boot: severely deteriorated
  • 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
  • Exhaust system has a major leak or is insecure
  • Exhaust system has a major leak or is insecure
Equipment
▲ 68.2% better
0.7 faults / 100 tests
Year avg: 2.2 / 100 tests
  • An SRS malfunction indicator lamp (MIL) indicates a system malfunction
  • A seat belt: webbing or flexible stalk significantly stretched or weakened
  • Seat belt buckle missing, damaged or not functioning as intended
  • Seat belt buckle missing, damaged or not functioning as intended
  • A seat belt:
Other
▲ 57.1% better
3.0 faults / 100 tests
Year avg: 7.0 / 100 tests
  • 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
  • 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: 5,798
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 2,071
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 1,638
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 1,084
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 1,075
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 660
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 614
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 537
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 499
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 481

Serious faults (Top 10)

Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 537
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 499
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 343
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 145
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 133
A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
FAIL
Occurrences: 106
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 105
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 91
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 69
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 69