Know Your MOT

Audi A4 vs Audi Q3: MOT reliability compared

Updated 05 September 2026.

12.8%
Audi Q3 MOT failure rate, 10.9 pts lower than Audi A4

Audi Q3 is the more reliable MOT performer: 12.8% of Audi Q3 MOTs fail versus 23.7% for Audi A4, a 10.9 point gap.

MetricAudi A4Audi Q3
MOT failure rate23.7%12.8%
Tests analysed7,296,9451,125,421
Most common failureSuspension (29.5%)Tyres (32.5%)

Questions and answers

Which is more reliable, Audi A4 or Audi Q3?

Audi Q3 is the more reliable MOT performer: 12.8% of Audi Q3 MOTs fail versus 23.7% for Audi A4, a 10.9 point gap.

What is the MOT failure rate of the Audi A4?

23.7% of Audi A4 MOT tests result in a failure, from 7,296,945 tests.

What is the MOT failure rate of the Audi Q3?

12.8% of Audi Q3 MOT tests result in a failure, from 1,125,421 tests.

Compared here

Audi A4 common MOT failures and failure rateAudi Q3 common MOT failures and failure rate