InfinitiUsed-car reliability
At 7 years old, the average Infiniti fails its MOT more often than the average UK car.
MOT fail rate · 7-year-old cars
Fails more often than the average 7-year-old car (about 1 in 6 MOTs, 16.6%)
Where to start
The Infiniti models whose MOT tests at 7 years old most and least often ended in a fail.
Lowest fail rates
Infiniti Q3018.1%fail rate
Infiniti Q5018.2%fail rateWhat actually goes wrong
The most common MOT faults across the Infiniti range, in plain English. Models with more MOT tests count for more. The percentage is the share of MOT tests on Infiniti cars that recorded that defect.
A suspension ball joint, pin, or rubber bush is worn or has excessive play. These are the pivot points and flexible mountings that let the suspension move — wear causes knocking sounds and vague steering.
MOT wording: Suspension arm pin or bush worn, but not moving too much
A tyre is worn, cut, damaged or otherwise not fit for the road. Tyres are the only thing connecting the car to the road, so this is always worth taking seriously.
A tyre is worn, cut, damaged or otherwise not fit for the road. Tyres are the only thing connecting the car to the road, so this is always worth taking seriously.
A brake disc or drum is excessively worn, scored, cracked, warped, or corroded. These are the rotating parts that the pads or shoes press against to slow the car.
MOT wording: Brake disc worn, pitted or scored, but not seriously weakened
Across all Infiniti models; models with more MOT tests count for more.
The whole range
For each model, one number: the share of its MOT tests at 7 years old that ended in a fail. Retests count as tests. Lower is better. The UK average (about 1 in 6 MOTs, 16.6%) is shown for reference.
The lowest 7-year fail rate of any Infiniti here.
Above the Infiniti average, and at or above the UK average.
Fail rates are the share of MOT tests on 7-year-old cars ending in a fail, retests included (DVSA MOT results, 2025). UK average across all makes at the same age: 16.6%. How we count fail rates
Averages tell you the odds across the range. Enter a number plate to see that car’s own MOT history, its risk rating, and what’s likely to need attention.
