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Audi A6 - 1999

422.2 faults per 100 tests
Year average for all cars of 1999 is 349.1 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Audi A6, model year 1999. Sample size: 150 cars, 316 tests and 1,334 recorded faults.
0%
More faults compared to the average car of same model year

Quick summary

Total: 150 cars

The 1999 Audi A6 has a higher overall defect rate of 422 defects per 100 vehicles, which is 22% above the average for cars of the same year, sitting at 345 defects. Notably, the model shows significant issues in steering, lights and electrics, and other categories, with defect rates considerably higher than the average rates in these areas. In contrast, it performs better than average in equipment-related defects, suggesting a relative strength in this category. Mileage data indicates that defect rates increase with distance, peaking in the 31,000–62,000 miles range.

Cars by mileage segment

Total: 150 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
▼ 16.8% worse
179.1 faults / 100 tests
Year avg: 153.4 / 100 tests
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Brake hose ferrules: excessively corroded
  • Significant brake effort recorded with no brake applied indicating a binding brake
  • Brake pipe damaged or excessively corroded
  • Brake lining or pad: worn below 1.5mm
Steering
▼ 54.1% worse
39.9 faults / 100 tests
Year avg: 25.9 / 100 tests
  • 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
  • Steering rack gaiter or ball joint dust cover: damaged or deteriorated
  • A steering ball joint: with excessive wear or free play
  • A steering ball joint: with excessive wear or free play
Visibility
▼ 4.5% worse
27.8 faults / 100 tests
Year avg: 26.6 / 100 tests
  • Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
  • Wiper blade: defective
  • Wiper blade: missing or obviously not clearing the windscreen
  • Obligatory mirror or device: slightly damaged or loose
  • Windscreen washers not working or not providing sufficient fluid to clear the windscreen
Lights & Electrics
▼ 53.4% worse
112.0 faults / 100 tests
Year avg: 73.0 / 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 emitted colour, position or intensity not in accordance with the requirements
  • Headlamp reflector or lens: slightly defective
  • Product on the lens or light source which obviously reduces light intensity or changes emitted colour to other than white or yellow
  • An obligatory rear fog lamp missing, or a front or rear fog lamp inoperative or in the case of a multiple light source more than 1/2 not functioning
Wheels & Suspension
▼ 12.6% worse
300.6 faults / 100 tests
Year avg: 266.9 / 100 tests
  • A suspension pin, bush, joint or bearing: excessively worn
  • A suspension component: excessively damaged or corroded
  • A spring: or spring component fractured or seriously weakened
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • Tyre tread depth not in accordance with the requirements
Body/Structure
▼ 3.4% worse
79.1 faults / 100 tests
Year avg: 76.5 / 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
  • Vehicle structure corroded to the extent that: the rigidity of the assembly is significantly reduced
  • Exhaust system has a major leak or is insecure
  • An engine mounting or bracket: severely damaged or deteriorated resulting in excessive movement
Equipment
▲ 73.4% better
5.1 faults / 100 tests
Year avg: 19.2 / 100 tests
  • A seat belt:
  • An SRS malfunction indicator lamp (MIL) indicates a system malfunction
  • is significantly reduced or The strength or continuity of the load bearing structure within 30cm of any seat belt anchorage (a ’prescribed area’): inadequately repaired
Other
▼ 78.1% worse
100.6 faults / 100 tests
Year avg: 56.5 / 100 tests
  • Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
  • Emissions levels exceed the manufacturer’s specified limits
  • Exhaust emits excessive smoke or vapour of any colour to an extent likely to obscure the vision of other road users
  • Emissions levels exceed default limits
  • Lambda coefficient outside the default limits or the range specified by the manufacturer

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)

Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 122
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 86
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 83
Brake pipe damaged or excessively corroded
ADVISORY
Occurrences: 79
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 71
A suspension component: excessively damaged or corroded
ADVISORY
Occurrences: 64
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 54
A spring: or spring component fractured or seriously weakened
ADVISORY
Occurrences: 51
A transmission shaft constant velocity joint boot: severely deteriorated
MINOR
Occurrences: 43
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 41

Serious faults (Top 10)

A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 41
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 16
A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
FAIL
Occurrences: 15
Steering rack gaiter or ball joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 13
Flexible brake hose: excessively damaged, deteriorated, chafed, twisted or stretched
FAIL
Occurrences: 8
Emissions levels exceed the manufacturer’s specified limits
FAIL
Occurrences: 8
Emissions levels exceed default limits
FAIL
Occurrences: 8
An obligatory rear fog lamp missing, or a front or rear fog lamp inoperative or in the case of a multiple light source more than 1/2 not functioning
FAIL
Occurrences: 8
A steering ball joint: with excessive wear or free play
FAIL
Occurrences: 8
A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
FAIL
Occurrences: 6