2004 Audi A6 · 4,673 MOT tests
2004 Audi A6 reliability
2004 Audi A6s fail 37.5% of first MOT tests, 18% fewer MOT fails than the average car its age and mileage, ranking 18 of 20 A6 years (4,673 DVSA tests, 2022 to 2024).
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- first-time fail rate (all Audi A6s: 20.1%)
- 37.5%
- first-time fail rate (all Audi A6s: 20.1%)
- fails than cars of the same age and mileage
- 18% fewer
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 18
- 151,683
- typical miles at its MOT, aged about 18
- MOT tests, 2022 to 2024
- 4,673
- MOT tests, 2022 to 2024
Year on year
2004 against the years either side
- 2003 cars: 15% fewer MOT fails than the average car its age (the 2004 car does better)
- 2005 cars: 23% fewer MOT fails than the average car its age (the 2004 car does worse)
- Strong point: windscreen, wipers and mirrors, 50% fewer fails than comparable cars.
- Plates: a 2004 car carries a 53 plate (January–February 2004), or a 04 plate (March–August 2004), or a 54 plate (September–December 2004).
Common problems
What fails on a 2004 Audi A6
Fail rate by area
- Lights and electrics19.8%
- Suspension12.3%
- Brakes11.5%
- Body, chassis and structure8.8%
- Tyres7.3%
- Exhaust, emissions and leaks6%
- Windscreen, wipers and mirrors3.9%
Average for cars of the same age and mileage
Top failures
CV joint boot split or insecure 5.09%
A split CV boot lets dirt in and grease out, so the joint wears and may need full replacement.
Position lamp not working 4.26%
A failed position lamp makes the car harder to see in poor light and is illegal, so it must be repaired.
Headlamp beam pattern obviously incorrect 3.77%
A wrongly shaped beam can dazzle other drivers and reduce your own view of the road, so the lamps need correcting.
Suspension arm pin/bush excessively worn 3.64%
Worn suspension arm bushes allow the wheel to move unpredictably, affecting steering, handling and tyre wear.
Suspension ball joint excessively worn 2.72%
A worn ball joint can fail and cause loss of steering control, so it must be replaced promptly.
Tyre ply or cords exposed 2.35%
Exposed ply or cords can let the tyre fail suddenly, so the tyre must be replaced before the car is driven.
Common advisories
Tyre worn close to legal limit (16.78%) · Suspension arm pin/bush showing wear (14.94%) · Brake disc pitted or scored (13.1%) · Engine oil leak, not excessive (12.3%) · Brake pipes corroded and greasy (6.63%) · Brake pads wearing thin (5.63%)
Other years
Every Audi A6 year
The full picture: Audi A6 reliability. Before you pay for any Audi A6, a Full Check (£9.99) shows finance, stolen and write-off records the MOT can't.
Source: DVSA anonymised MOT results, 2022 to 2024, class 4 normal tests.
Is a 2004 Audi A6 reliable?
2004 Audi A6s fail 37.5% of first MOT tests, 18% fewer MOT fails than the average car its age and mileage, ranking 18 of 20 A6 years (4,673 DVSA tests, 2022 to 2024).
What fails on a 2004 Audi A6 MOT?
Most often cv joint boot split or insecure (5.09% of tests), position lamp not working (4.26% of tests), headlamp beam pattern obviously incorrect (3.77% of tests).
How many miles should a 2004 Audi A6 have done?
At its MOT aged about 18, a typical 2004 Audi A6 shows 151,683 miles. Much higher or lower is worth asking about.
What plate is a 2004 car?
A car first registered in 2004 carries a 53 plate (January–February 2004), or a 04 plate (March–August 2004), or a 54 plate (September–December 2004).
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