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Audi A6 - 2005

366.9 faults per 100 tests
Year average for all cars of 2005 is 377.4 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Audi A6, model year 2005. Sample size: 1,894 cars, 3,810 tests and 13,980 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 1,894 cars

The 2005 Audi A6 has a slightly lower overall defect rate compared to the average car of the same year, with 367 defects per 100 vehicles compared to 376. The model performs particularly well in the categories of steering and body/structure, with significantly fewer defects reported than the average. In terms of mileage-related trends, the defect rate is highest in the lowest mileage category (600 defects per 100), but it shows a more gradual decline in older vehicles compared to the average. Overall, the Audi A6 demonstrates strong reliability in key areas, particularly when compared to its peers.

Cars by mileage segment

Total: 1,894 cars

More model years for Audi A6

1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

Other models from Audi

Audi A1 Audi A2 Audi A3 Audi A4 Audi A5 Audi A6 Audi A7 Audi A8 Audi ALLROAD Audi E-TRON Audi Q2 Audi Q3 Audi Q4 Audi Q5 Audi Q7 Audi Q8 Audi R8 Audi RS4 Audi S3 Audi S4 Audi TT

Categories

Brakes
▲ 15.8% better
133.4 faults / 100 tests
Year avg: 158.5 / 100 tests
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Flexible brake hose: excessively damaged, deteriorated, chafed, twisted or stretched
  • Brake disc or drum: significantly and obviously worn
  • Brake lining or pad: worn below 1.5mm
  • Brake pipe damaged or excessively corroded
Steering
▲ 58.5% better
9.3 faults / 100 tests
Year avg: 22.4 / 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.
  • Power steering fluid leaking or system malfunctioning
  • A steering ball joint: with excessive wear or free play
  • Steering rack gaiter or ball joint dust cover: damaged or deteriorated
Visibility
▲ 11.3% better
25.2 faults / 100 tests
Year avg: 28.4 / 100 tests
  • Windscreen washers not working or not providing sufficient fluid to clear the windscreen
  • Wiper blade: missing or obviously not clearing the windscreen
  • Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
  • Windscreen washers not working or not providing sufficient fluid to clear the windscreen
  • Wiper blade: defective
Lights & Electrics
▼ 16.3% worse
128.0 faults / 100 tests
Year avg: 110.1 / 100 tests
  • A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
  • Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
  • Headlamp reflector or lens: slightly defective
  • Beam image obviously incorrect
  • Product on the lens or light source which obviously reduces light intensity or changes emitted colour to other than white or yellow
Wheels & Suspension
▼ 7.7% worse
338.4 faults / 100 tests
Year avg: 314.1 / 100 tests
  • A suspension pin, bush, joint or bearing: excessively worn
  • A suspension component: excessively damaged or corroded
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • Tyre tread depth not in accordance with the requirements
  • A shock absorber damaged … or showing signs of severe leakage
Body/Structure
▲ 34.6% better
40.2 faults / 100 tests
Year avg: 61.5 / 100 tests
  • Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
  • 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: severely deteriorated
  • Exhaust system has a major leak or is insecure
  • Body, cab or chassis: excessively corroded at mounting points
Equipment
▲ 14.0% better
11.1 faults / 100 tests
Year avg: 12.9 / 100 tests
  • An SRS malfunction indicator lamp (MIL) indicates a system malfunction
  • A seat belt: webbing or flexible stalk significantly stretched or weakened
  • ESC MIL indicates a system malfunction
  • Seat belt buckle missing, damaged or not functioning as intended
  • Seat belt buckle missing, damaged or not functioning as intended
Other
▼ 3.0% worse
48.1 faults / 100 tests
Year avg: 46.7 / 100 tests
  • 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
  • Exhaust emits excessive smoke or vapour of any colour to an extent likely to obscure the vision of other road users
  • Engine MIL inoperative or indicating a malfunction

Fault rate by mileage segment

Model    Year average
0 600 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)

A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 1,984
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 1,404
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 702
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 669
A suspension component: excessively damaged or corroded
ADVISORY
Occurrences: 515
A shock absorber damaged … or showing signs of severe leakage
ADVISORY
Occurrences: 439
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 436
Headlamp reflector or lens: slightly defective
MINOR
Occurrences: 417
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 385
Product on the lens or light source which obviously reduces light intensity or changes emitted colour to other than white or yellow
ADVISORY
Occurrences: 358

Serious faults (Top 10)

A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 292
Beam image obviously incorrect
FAIL
Occurrences: 173
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 160
Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
FAIL
Occurrences: 117
A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
FAIL
Occurrences: 113
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 107
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 83
Headlamp reflector or lens: seriously defective or missing
FAIL
Occurrences: 73
A spring: or spring component fractured or seriously weakened
FAIL
Occurrences: 68
A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
FAIL
Occurrences: 67