MOT fail rates by first-use year
2006 Audi A4 MOT fail rate and common faults
How Audi A4 cars first used in 2006 did at their MOTs from 2022 to 2025, against all cars of the same age. From 57,207 DVSA MOT tests of these cars. First use is usually the date the car was first registered.
MOT data updated
At 19 years, tested in 2025
What stands out
- In 2025, at 19 years old, Audi A4 cars first used in 2006 failed 36.8% of MOTs (10,521 tests), 6.4 points below the 43.2% for all cars that age.
- From 2022 to 2025, as these cars went from 16 to 19 years old, the fail rate moved from 37.4% to 36.8%.
- Audi A4 cars first used a year earlier, in 2005, failed 38.6% at the same age of 19 years (7,592 tests, in 2024).
- The most common fail item that is not a wear item, for the Audi A4 at 19 years, is driveshaft CV boot split, at 3.9 per 100 MOTs (all cars: 3.2).
MOT fail rate by test year
| Test year | Age | MOT fail rate | Tests (n) | All cars | Difference |
|---|---|---|---|---|---|
| 2022 | 16 years | 37.4% | 18,052 | 42.6% | −5.1 pts |
| 2023 | 17 years | 37.7% | 15,694 | 43.1% | −5.4 pts |
| 2024 | 18 years | 38.2% | 12,940 | 43.3% | −5.0 pts |
| 2025 | 19 years | 36.8% | 10,521 | 43.2% | −6.4 pts |
Most common faults at 19 years
These figures cover all Audi A4 MOTs at 19 years: cars first used 2003 to 2006, tested 2022 to 2025 (n=33,152). The list uses every first-use year so it has enough tests. Wear items (tyres, brake pads, wipers, bulbs) say more about upkeep than about the design.
MOT fail items
| Fail item | Per 100 MOTs | All cars |
|---|---|---|
| Driveshaft CV boot split | 3.9 | 3.2 |
| Suspension arm bush worn | 3.9 | 2.2 |
| Brake light not working Wear | 3.4 | 4.0 |
| Side/position light not working Wear | 3.3 | 5.4 |
| Coil spring broken | 3.2 | 2.8 |
| Tyre tread below 1.6 mm Wear | 3.2 | 2.8 |
| Headlamp aim: projected beam image is obviously incorrect Wear | 3.1 | 4.1 |
| Anti-lock braking system: warning lamp indicates an ABS fault | 2.8 | 1.1 |
| Suspension ball joint worn | 2.8 | 2.4 |
| Flexible brake hoses: excessively deteriorated | 2.5 | 0.5 |
Per 100 of the MOTs above (n=33,152). A test with two items counts once for each.
Advisories
| Advisory | Per 100 MOTs | All cars |
|---|---|---|
| Tyre tread close to the legal limit or worn on the edge Wear | 19.8 | 16.6 |
| Suspension pin or bush worn, without excessive movement | 18.6 | 8.1 |
| Engine oil leaks: leak, but not excessive | 16.8 | 13.2 |
| Brake discs: worn, pitted or scored, but not seriously weakened | 12.4 | 10.8 |
| Registration plate lamp(s): inoperative in the case of multiple lamps or light sources Wear | 10.9 | 5.6 |
| Sub-frame: corroded but not seriously weakened | 7.8 | 5.0 |
| Tyre condition: slightly damaged/cracking or perishing Wear | 7.3 | 9.9 |
| Flexible brake hoses: slightly deteriorated | 6.8 | 2.1 |
| Linkage pins and bushes: pin or bush worn but not resulting in excessive movement | 5.9 | 1.3 |
| Shock absorber misting oil | 5.8 | 3.6 |
Per 100 of the MOTs above (n=33,152). A test with two items counts once for each.
Fuel type at 19 years
These figures cover all Audi A4 MOTs at 19 years: cars first used 2003 to 2006, tested 2022 to 2025 (n=33,152). Each fuel is set against all cars of the same fuel and age. Fuels with fewer than 1,000 tests are not shown.
| Fuel | Share of tests | MOT fail rate | Tests (n) | All cars, same fuel | Median mileage |
|---|---|---|---|---|---|
| Diesel | 55.6% | 41.4% | 18,444 | 43.8% | 160,375 miles |
| Petrol | 44.4% | 35.9% | 14,701 | 43.0% | 113,704 miles |
Fail rate by mileage at 19 years
These figures cover all Audi A4 MOTs at 19 years: cars first used 2003 to 2006, tested 2022 to 2025 (n=33,152). At 19 years, Audi A4 cars at over 150,000 miles failed more often (43.0%, n=13,242) than those at 60,000 to 90,000 miles (33.4%, n=3,494). Bands with fewer than 1,000 tests are not shown.
| Mileage at test | MOT fail rate | Tests (n) | All cars |
|---|---|---|---|
| 60,000 to 90,000 miles | 33.4% | 3,494 | 41.7% |
| 90,000 to 120,000 miles | 36.4% | 6,941 | 46.2% |
| 120,000 to 150,000 miles | 40.6% | 8,089 | 47.5% |
| Over 150,000 miles | 43.0% | 13,242 | 46.9% |
Car tax rules for a 2006 car
- Cars first registered from 1 March 2001 to 31 March 2017 are taxed by CO2 emissions band, from band A (the lowest emissions) to band M. The band is set by the CO2 figure on the V5C logbook.
These are the rules, not the amount for a specific car. Car tax check
ULEZ and clean air zones
- Petrol cars first registered from 2006 usually meet Euro 4, the petrol standard for the London ULEZ, so they usually do not pay the daily charge.
- Diesel cars first registered before September 2015 usually do not meet Euro 6, so a 2006 diesel usually pays the ULEZ daily charge. A few models met Euro 6 early.
- The clean air zones in Birmingham and Bristol use the same Euro 4 petrol and Euro 6 diesel standards. The low emission zones in Scotland use them too, but enforce them with fines, not a daily charge.
The Euro standard of the car decides, not the year alone. ULEZ checker
Other years of the Audi A4
Other Audi models first used in 2006
| Model | Age at test | MOT fail rate | Tests (n) | All cars |
|---|---|---|---|---|
| Audi A3 (2006) | 19 years in 2025 | 43.3% | 9,775 | 43.2% |
| Audi A6 (2006) | 19 years in 2025 | 35.1% | 2,421 | 43.2% |
| Audi TT (2006) | 19 years in 2025 | 38.9% | 2,707 | 43.2% |
| Audi Q7 (2006) | 18 years in 2024 | 27.0% | 1,105 | 43.3% |
More on the Audi A4
Found one you might buy? Vet the specific car.
These figures describe 2006 Audi A4 cars as a group, not any one car. The VetTheCar Buying Report looks at the car you are buying: its MOT history, what similar cars did next, and what to ask the seller.
Source
Contains public sector information licensed under the Open Government Licence v3.0. Source: DVSA anonymised MOT test data, class 4 normal MOT tests, 2022 to 2025. MOT data updated 28 September 2026.
Not affiliated with or endorsed by DVSA. How we calculate these figures · Data sources
Car tax and clean air zone rules are summarised from GOV.UK and Transport for London guidance. They are general rules and are not drawn from the MOT data.