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Audi A8 - 2009

169.1 faults per 100 tests
Year average for all cars of 2009 is 311.0 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Audi A8, model year 2009. Sample size: 446 cars, 863 tests and 1,459 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 446 cars

The 2009 Audi A8 has a significantly lower overall defect rate of 169 per 100 vehicles, compared to the average of 310 per 100 vehicles, marking a 45% improvement. Notably, this model excels in several categories, such as brakes, steering, and visibility, where it shows much fewer defects compared to the average car of the same year. Mileage-related trends indicate that defects increase with mileage, especially in the higher mileage brackets, which aligns with general patterns. Overall, the Audi A8 demonstrates commendable reliability in comparison to its peers.

Cars by mileage segment

Total: 446 cars

More model years for Audi A8

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

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
▲ 26.8% better
86.0 faults / 100 tests
Year avg: 117.5 / 100 tests
  • Brake disc or drum: insecure, fractured or otherwise likely to fail
  • Brake disc or drum: significantly and obviously worn
  • Flexible brake hose: excessively damaged, deteriorated, chafed, twisted or stretched
  • Brake lining or pad: worn below 1.5mm
  • Brake pipe damaged or excessively corroded
Steering
▲ 84.7% better
2.5 faults / 100 tests
Year avg: 16.3 / 100 tests
  • Steering linkage retaining or locking device missing or ineffective
  • Excessive wear or play in a universal joint or a flexible coupling excessively deteriorated
  • Steering rack gaiter or ball joint dust cover: missing or no longer prevents the ingress of dirt etc.
  • Steering rack gaiter or ball joint dust cover: damaged or deteriorated
  • A steering ball joint: with excessive wear or free play
Visibility
▲ 30.8% better
16.2 faults / 100 tests
Year avg: 23.4 / 100 tests
  • Windscreen washers not working or not providing sufficient fluid to clear the windscreen
  • 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
  • Wiper blade: defective
Lights & Electrics
▲ 61.6% better
31.1 faults / 100 tests
Year avg: 80.9 / 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
  • Product on the lens or light source which obviously reduces light intensity or changes emitted colour to other than white or yellow
  • Lamp: multiple light source up to a half not functioning
  • Headlamp reflector or lens: slightly defective
Wheels & Suspension
▲ 43.6% better
169.2 faults / 100 tests
Year avg: 299.8 / 100 tests
  • A suspension pin, bush, joint or bearing: excessively worn
  • 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
  • Tyre tread depth not in accordance with the requirements
  • A suspension pin, bush, joint or bearing: excessively worn
Body/Structure
▲ 73.3% better
11.1 faults / 100 tests
Year avg: 41.5 / 100 tests
  • A door hinge, catch or pillar: excessively 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
  • A transmission shaft constant velocity joint boot: severely deteriorated
  • Fuel system: leaking, or missing or ineffective filler cap
Equipment
▲ 47.0% better
4.4 faults / 100 tests
Year avg: 8.3 / 100 tests
  • A seat belt: webbing or flexible stalk significantly stretched or weakened
  • An SRS malfunction indicator lamp (MIL) indicates a system malfunction
  • Seat belt buckle missing, damaged or not functioning as intended
  • ESC MIL indicates a system malfunction
  • A seat belt:
Other
▲ 48.8% better
17.6 faults / 100 tests
Year avg: 34.4 / 100 tests
  • Engine MIL inoperative or indicating a malfunction
  • Any part of the noise suppression system: insecure
  • 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

Fault rate by mileage segment

Model    Year average
0 454 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: 328
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 231
Brake disc or drum: insecure, fractured or otherwise likely to fail
ADVISORY
Occurrences: 180
Brake lining or pad: worn below 1.5mm
ADVISORY
Occurrences: 60
Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 54
Brake disc or drum: significantly and obviously worn
ADVISORY
Occurrences: 46
Windscreen or window damaged or seriously discoloured: but not adversely affecting driver’s view
MINOR
Occurrences: 37
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 34
A rear registration plate lamp or light source missing or inoperative: when rear registration plate has 2 or more lamps or light sources
MINOR
Occurrences: 33
A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 32

Serious faults (Top 10)

A suspension pin, bush, joint or bearing: excessively worn
FAIL
Occurrences: 32
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
FAIL
Occurrences: 19
Tyre tread depth not in accordance with the requirements
FAIL
Occurrences: 17
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 13
Lamp: missing, inoperative or in the case of a multiple light source more than a half not functioning
FAIL
Occurrences: 10
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 7
Brake lining or pad: worn below 1.5mm
FAIL
Occurrences: 6
A headlamp: missing, inoperative or more than ½ not functioning in the case of LED
FAIL
Occurrences: 5
Parking brake efficiency: less than 50% of the required value
FAIL
Occurrences: 5
Parking brake efficiency: below minimum requirement
FAIL
Occurrences: 5