Audi A4 vs Audi A5: MOT reliability compared
Updated 05 September 2026.
16.7%
Audi A5 MOT failure rate, 7.0 pts lower than Audi A4
Audi A5 is the more reliable MOT performer: 16.7% of Audi A5 MOTs fail versus 23.7% for Audi A4, a 7.0 point gap.
| Metric | Audi A4 | Audi A5 |
|---|---|---|
| MOT failure rate | 23.7% | 16.7% |
| Tests analysed | 7,296,945 | 1,571,277 |
| Most common failure | Suspension (29.5%) | Tyres (38.9%) |
Questions and answers
Which is more reliable, Audi A4 or Audi A5?
Audi A5 is the more reliable MOT performer: 16.7% of Audi A5 MOTs fail versus 23.7% for Audi A4, a 7.0 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 A5?
16.7% of Audi A5 MOT tests result in a failure, from 1,571,277 tests.