Audi A6 - 2003
385.4 faults per 100 tests
Year average for all cars of 2003 is 380.4 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Audi A6, model year 2003.
Sample size: 793 cars, 1,549 tests and 5,970 recorded faults.
0%
More faults compared to the average car of same model year
More faults compared to the average car of same model year
Quick summary
Total: 793 cars
The 2003 Audi A6 has an overall defect rate of 385 defects per 100 cars, which is slightly higher than the yearly average of 378 defects per 100 cars. Notably, this model performs particularly well in the equipment category, with a defect rate 48% lower than the average for vehicles of the same year. In terms of mileage, defects increase significantly with mileage, especially beyond 124,000 miles, where the A6 shows a notably higher defect rate compared to less driven vehicles. Overall, while tyre wear is a common issue, this model demonstrates strengths in certain areas while also reflecting a typical trend of increasing defects with age and mileage.
Cars by mileage segment
Total: 793 cars
Categories
Brakes
▼ 5.6% worse
178.8 faults / 100 tests
Year avg: 169.3 / 100 tests
- Brake disc or drum: insecure, fractured or otherwise likely to fail
- Brake lining or pad: worn below 1.5mm
- Significant brake effort recorded with no brake applied indicating a binding brake
- Brake pipe damaged or excessively corroded
- Flexible brake hose: excessively damaged, deteriorated, chafed, twisted or stretched
Steering
▲ 13.5% better
21.8 faults / 100 tests
Year avg: 25.2 / 100 tests
- Steering rack gaiter or ball joint dust cover: damaged or deteriorated
- 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
- A steering ball joint: with excessive wear or free play
- Power steering fluid leaking or system malfunctioning
Visibility
▲ 15.1% better
25.3 faults / 100 tests
Year avg: 29.8 / 100 tests
- Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
- Obligatory mirror or device: slightly damaged or loose
- Wiper blade: missing or obviously not clearing the windscreen
- Wiper blade: missing or obviously not clearing the windscreen
- Windscreen washers not working or not providing sufficient fluid to clear the windscreen
Lights & Electrics
▼ 1.3% worse
104.1 faults / 100 tests
Year avg: 102.8 / 100 tests
- Headlamp reflector or lens: slightly defective
- Beam image obviously incorrect
- The aim of a headlamp is not within limits laid down in the requirements
- Product on the lens or light source which obviously reduces light intensity or changes emitted colour to other than white or yellow
- A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
Wheels & Suspension
▼ 3.2% worse
311.9 faults / 100 tests
Year avg: 302.1 / 100 tests
- Tyre tread depth not in accordance with the requirements
- A suspension component: excessively damaged or corroded
- A suspension pin, bush, joint or bearing: excessively worn
- A spring: or spring component fractured or seriously weakened
- A tyre: with a lump, bulge or tear … or with cords exposed or damaged
Body/Structure
▲ 5.5% better
61.6 faults / 100 tests
Year avg: 65.2 / 100 tests
- A transmission shaft constant velocity joint boot: severely deteriorated
- Exhaust system has a major leak or is insecure
- A body panel or body component: damaged or corroded and likely to cause injury when grazed or contacted, or insecure
- 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
Equipment
▲ 50.0% better
6.8 faults / 100 tests
Year avg: 13.6 / 100 tests
- A seat belt:
- An SRS malfunction indicator lamp (MIL) indicates a system malfunction
- Seat belt not functioning as intended or of an incorrect type
- A seat belt: webbing or flexible stalk significantly stretched or weakened
- ESC MIL indicates a system malfunction
Other
▼ 14.6% worse
60.4 faults / 100 tests
Year avg: 52.7 / 100 tests
- Smoke opacity levels exceed the manufacturer’s specified limit
- Lambda coefficient outside the default limits or the range specified by the manufacturer
- 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
* Metric: faults per 100 tests.
Most common faults (Top 10)
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 700
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 454
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 354
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 330
Brake pipe damaged or excessively corroded
ADVISORY
Occurrences: 301
A spring: or spring component fractured or seriously weakened
ADVISORY
Occurrences: 221
A suspension component: excessively damaged or corroded
ADVISORY
Occurrences: 210
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 202
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 187
A transmission shaft constant velocity joint boot: severely deteriorated
MINOR
Occurrences: 169
Serious faults (Top 10)
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 187
A transmission shaft constant velocity joint boot: missing, split, insecure or no longer prevents the ingress of dirt
FAIL
Occurrences: 100
Beam image obviously incorrect
FAIL
Occurrences: 62
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 53
The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 52
Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
FAIL
Occurrences: 45
Brake pipe damaged or excessively corroded
FAIL
Occurrences: 41
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 39
Significant brake effort recorded with no brake applied indicating a binding brake
FAIL
Occurrences: 38
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: 30