Most reliable Infiniti: MOT failure rates ranked
Updated 05 September 2026.
12.6%
Infiniti Q30, the most reliable Infiniti
The most reliable Infiniti on MOT failure rate is the Infiniti Q30, at 12.6% failures across 39,744 tests.
| Rank | Model | MOT failure rate | Tests |
|---|---|---|---|
| 1 | Infiniti Q30 | 12.6% | 39,744 |
| 2 | Infiniti Fx | 14.8% | 6,437 |
| 3 | Infiniti Q50 | 16.9% | 24,544 |
Questions and answers
What is the most reliable Infiniti at MOT?
The most reliable Infiniti on MOT failure rate is the Infiniti Q30, at 12.6% failures across 39,744 tests.
Which Infiniti fails its MOT most often?
The Infiniti Q50 has the highest MOT failure rate of the Infiniti range, at 16.9%.