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Audi A6 - 2020

74.6 faults per 100 tests
Year average for all cars of 2020 is 91.3 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Audi A6, model year 2020. Sample size: 4,090 cars, 9,095 tests and 6,787 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 4,090 cars

The 2020 Audi A6 shows an overall defect rate of 75 per 100 vehicles, which is significantly lower than the average of 90 per 100, indicating a 17% better performance. In terms of mileage-related trends, defect rates increase with mileage, notably peaking at 360 per 100 for vehicles over 124,000 miles. The model excels in several categories, particularly in brakes, steering, visibility, lights, body structure, and other issues, all performing better than the average vehicle of the same year. Notably, the A6 has a remarkably low incidence of steering defects at just 0.04 per 100, compared to the average of 1.44. Overall, the Audi A6 stands out as a reliable choice with fewer defects than its peers.

Cars by mileage segment

Total: 4,090 cars

Categories

Brakes
▲ 27.0% better
37.1 faults / 100 tests
Year avg: 50.8 / 100 tests
  • Brake lining or pad: worn below 1.5mm
  • Brake disc or drum: significantly and obviously worn
  • Brake lining or pad: worn down to wear indicator
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Brake lining or pad: worn below 1.5mm
Steering
▲ 100.0% better
0.0 faults / 100 tests
Year avg: 1.5 / 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
▲ 32.6% better
9.5 faults / 100 tests
Year avg: 14.1 / 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
  • Windscreen or window excessively tinted: but not adversely affecting driver’s view
  • Windscreen washers not working or not providing sufficient fluid to clear the windscreen
Lights & Electrics
▲ 71.4% better
3.2 faults / 100 tests
Year avg: 11.2 / 100 tests
  • 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
  • Headlamp cleaning device: inoperative in the case of LED or gas discharge systems (HID)
  • 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
Wheels & Suspension
▲ 1.6% better
95.9 faults / 100 tests
Year avg: 97.5 / 100 tests
  • A spring: or spring component fractured or seriously weakened
  • 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 cut in excess of the requirements deep enough to reach the ply or cords
Body/Structure
▲ 70.8% better
0.7 faults / 100 tests
Year avg: 2.4 / 100 tests
  • A transmission shaft constant velocity joint boot: severely deteriorated
  • A driver’s seat: fore and aft adjustment mechanism not working as intended
  • A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
  • A door will not open using the relevant control or close properly
  • A transmission: joint, belt or chain excessively worn
Equipment
▲ 13.3% better
1.3 faults / 100 tests
Year avg: 1.5 / 100 tests
  • An SRS malfunction indicator lamp (MIL) indicates a system malfunction
  • A seat belt: or flexible stalk damaged
  • A seat belt: webbing or flexible stalk significantly stretched or weakened
  • A seat belt: or flexible stalk damaged
  • Seat belt not functioning as intended or of an incorrect type
Other
▲ 59.5% better
1.5 faults / 100 tests
Year avg: 3.7 / 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
  • Any part of the noise suppression system: insecure

Fault rate by mileage segment

Model    Year average
0 360 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: 2,456
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 1,018
A spring: or spring component fractured or seriously weakened
ADVISORY
Occurrences: 570
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 348
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 271
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 257
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 241
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 225
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
ADVISORY
Occurrences: 224
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 146

Serious faults (Top 10)

Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 241
A tyre: with a cut in excess of the requirements deep enough to reach the ply or cords
FAIL
Occurrences: 146
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 109
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 61
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 41
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 27
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 25
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 18
Engine MIL inoperative or indicating a malfunction
FAIL
Occurrences: 18
Brake lining or pad: worn down to wear indicator
FAIL
Occurrences: 15