DS AUTO LABS

Audi · MOT reliability data

Audi A4

The A4 is Audi's mid-size saloon and estate, a long-standing company car favourite.

73.0%

MOT pass rate

Saloon / estate

Segment

Petrol, diesel, plug-in hybrid

Fuel types available

Source: DS Auto Labs analysis of DVSA's anonymised 2025 MOT test results (Open Government Licence v3.0): 243,350 first-time tests of Audi A4 cars of all ages (test class 4, cars and light vans). A pass means a clean first-time pass; a car that failed and was repaired at the test station before passing counts as not passed, and aborted tests are excluded. Age is the car's age at the 2025 test.

What to know

In 2025, Audi A4 cars passed their MOT first time 73.0% of the time, across 243,350 tests. That is 5.4 points below Audi's overall brand average of 78.4% and 0.6 points above the national average of 72.4%.

Age explains much of the difference between models. Pass rates fall steeply as cars get older, for every make, so a model with many old cars on the road looks worse than it is, and a recent model looks better. This compares the Audi A4 with the typical UK car of the same age.

MOT pass rate by vehicle age, 2025 first-time tests
Car ageAudi A4All UK carsTests
3-5 years87.6%87.2%22,293
6-9 years79.9%79.3%69,333
10-13 years72.6%67.9%61,002
14+ years64.4%59.3%90,379

Allowing for the age mix of the cars tested, a typical UK car would be expected to pass about 69.8% of the time. The Audi A4 passed at 73.0%, which is 3.2 points above that expected rate.

A model average says little about one particular car, so check its own MOT history for repeated advisories, past failures and mileage.

Check a specific A4's MOT history, tax status, and advisories by registration number.

Check MOT history

See how the Audi range compares overall, with model-by-model pass rates.

View Audi brand page