79.7%
Audi A6
Audi A6 MOT pass rate and common problems
The Audi A6 passed 79.7% of its initial MOT tests in 2025, 7.4 percentage points above the 72.3% UK average. The item testers recorded most often was tread depth below requirements of 1.6mm.
Checking a specific car? Its own results, advisories and recorded mileages are in a free MOT history check.
How the A6 compares
Initial MOT tests in 2025, retests excluded. A car that failed and was repaired at the test station counts as a fail.
78.5%
Audi average
72.3%
UK average, all cars
The A6 runs 1.2 points ahead of the Audi average. It is 18th of the 24 Audi models in the data. The average A6 arrived at its test 10.8 years old with 107,714 miles recorded.
A pass rate records whether cars met the roadworthiness standard on test day. It is not a reliability score, and part of any gap reflects how old the tested cars were.
A6 MOT pass rate by age
The same 2025 tests split by the car's age at test.
Audi A6 cars aged 3 to 5 years passed 89.7% of MOT tests. For cars aged 11 years and over that fell to 72.3%, a drop of 17.4 percentage points.
| Age at test | Tests | Pass rate | vs UK average |
|---|---|---|---|
| 3 to 5 years | 14,588 | 89.7% | 17.4 pts above |
| 6 to 10 years | 49,986 | 83.8% | 11.5 pts above |
| 11 years and over | 54,314 | 72.3% | In line |
That is a steep decline with age, so the headline rate flatters older examples. The UK average of 72.3% covers cars of every age, so compare like with like.
Where A6 failures cluster
Every failure item recorded on Audi A6 cars in 2025, grouped into the DVSA's test areas.
Tyres and suspension together account for 42.6% of recorded failure items. These are recorded failures across the model, not faults every car has.
The 10 most common A6 MOT failures
Specific items recorded on Audi A6 cars that failed their 2025 MOT, as a share of all recorded failure items.
Together these 10 items make up 44.5% of everything testers recorded against failed Audi A6 cars. The rest is spread across many smaller items, and one failed test often records several at once.
What to look at on a A6
The recorded failures above, grouped by area, biggest first.
1
Tyres
Recorded most often: tread depth below requirements of 1.6mm, condition has ply or cords exposed and condition has a cut in excess of the requirements deep enough to reach the ply or cords. 16.7% of failure items.
2
Suspension
Recorded most often: pins and bushes pin or bush excessively worn, coil spring fractured or broken and linkage pins and bushes pin or bush excessively worn. 13.1% of failure items.
3
Noise, emissions and leaks
Recorded most often: malfunction indicator lamp inoperative or indicates a malfunction. 5.2% of failure items.
4
Body, chassis, structure
Recorded most often: joints constant velocity boot split or insecure, no longer prevents the ingress of dirt. 3.7% of failure items.
The car's own MOT history matters more than any model average. A free MOT history check shows whether a specific A6 has failed on these items before, or had them noted as advisories. Buying one? See the used Audi A6 buying guide.
Already found one?
Check its finance, write-off, theft, mileage and keeper history with a £15 vehicle history report.
Audi A6 MOT FAQs
What is the Audi A6 MOT pass rate?
79.7% of Audi A6 cars passed their initial MOT first time in 2025, from 122,793 tests. That is 7.4 percentage points above the 72.3% average for all cars, and ranks 202nd of 575 models.
What does an Audi A6 most commonly fail its MOT on?
The item testers recorded most often on Audi A6 cars failing their 2025 MOT was tread depth below requirements of 1.6mm, on 8.2% of failure items. Next were pins and bushes pin or bush excessively worn (6%) and malfunction indicator lamp inoperative or indicates a malfunction (5.2%).
Which area causes the most Audi A6 MOT failures?
Across every recorded failure item, the largest area was tyres at 21.8%, followed by suspension at 20.8%.
Do older Audi A6 cars fail their MOT more often?
Audi A6 cars aged 3 to 5 years passed 89.7% of MOT tests in 2025, against 72.3% for cars aged 11 years and over.
Does this mean every Audi A6 has these problems?
No. These are the items testers recorded across every Audi A6 that failed in 2025. They show where the model most often needs attention, not the condition of any individual car.
How do I see a specific Audi A6's MOT history?
Enter its registration on the free Carpeep MOT history check to see that car's own test results, failures, advisories and recorded mileages.
MOT figures are aggregated from the DVSA MOT Anonymised data set for 2025: class 4 initial tests, retests excluded, with failure items from failed tests (advisories and minor defects excluded), licensed under the Open Government Licence v3.0. MOT results describe roadworthiness at test, not mechanical reliability.