75.9%
Infiniti Q50
Infiniti Q50 MOT pass rate and common problems
The Infiniti Q50 passed 75.9% of its initial MOT tests in 2025, 3.6 percentage points above the 72.3% UK average. The item testers recorded most often was tread depth below requirements of 1.6mm.
Checking a specific car? Its own results, advisories and recorded mileages are in a free MOT history check.
How the Q50 compares
Initial MOT tests in 2025, retests excluded. A car that failed and was repaired at the test station counts as a fail.
78.3%
Infiniti average
72.3%
UK average, all cars
The Q50 runs 2.3 points behind the Infiniti average. It is 2nd of the 2 Infiniti models in the data. The average Q50 arrived at its test 9.2 years old with 84,531 miles recorded.
A pass rate records whether cars met the roadworthiness standard on test day. It is not a reliability score, and part of any gap reflects how old the tested cars were.
Q50 MOT pass rate by age
The same 2025 tests split by the car's age at test.
Infiniti Q50 cars aged 6 to 10 years passed 76.4% of MOT tests. For cars aged 11 years and over that fell to 69.2%, a drop of 7.1 percentage points.
| Age at test | Tests | Pass rate | vs UK average |
|---|---|---|---|
| 3 to 5 years (small sample) | 15 | 93.3% | 21 pts above |
| 6 to 10 years | 2,224 | 76.4% | 4.1 pts above |
| 11 years and over | 182 | 69.2% | 3.1 pts below |
That is a typical decline as cars age. The UK average of 72.3% covers cars of every age, so compare like with like.
Where Q50 failures cluster
Every failure item recorded on Infiniti Q50 cars in 2025, grouped into the DVSA's test areas.
Brakes and suspension together account for 46.1% of recorded failure items. These are recorded failures across the model, not faults every car has.
The 10 most common Q50 MOT failures
Specific items recorded on Infiniti Q50 cars that failed their 2025 MOT, as a share of all recorded failure items.
Together these 10 items make up 53.5% of everything testers recorded against failed Infiniti Q50 cars. The rest is spread across many smaller items, and one failed test often records several at once.
What to look at on a Q50
The recorded failures above, grouped by area, biggest first.
1
Tyres
Recorded most often: tread depth below requirements of 1.6mm, condition has ply or cords exposed and condition has a cut in excess of the requirements deep enough to reach the ply or cords. 16.8% of failure items.
2
Suspension
Recorded most often: linkage ball joints ball joint excessively worn and ball joint excessively worn. 14.4% of failure items.
3
Brakes
Recorded most often: brake pads less than 1.5 mm thick. 8.5% of failure items.
4
Lamps, reflectors and electrical equipment
Recorded most often: position lamp not working and registration plate lamp(s) inoperative in the case of a single lamp or all lamps. 6.6% of failure items.
The car's own MOT history matters more than any model average. A free MOT history check shows whether a specific Q50 has failed on these items before, or had them noted as advisories. Buying one? See the used Infiniti Q50 buying guide.
Already found one?
Check its finance, write-off, theft, mileage and keeper history with a £15 vehicle history report.
Infiniti Q50 MOT FAQs
What is the Infiniti Q50 MOT pass rate?
75.9% of Infiniti Q50 cars passed their initial MOT first time in 2025, from 2,421 tests. That is 3.6 percentage points above the 72.3% average for all cars, and ranks 251st of 575 models.
What does an Infiniti Q50 most commonly fail its MOT on?
The item testers recorded most often on Infiniti Q50 cars failing their 2025 MOT was tread depth below requirements of 1.6mm, on 9% of failure items. Next were brake pads less than 1.5 mm thick (8.5%) and linkage ball joints ball joint excessively worn (7.4%).
Which area causes the most Infiniti Q50 MOT failures?
Across every recorded failure item, the largest area was brakes at 23.2%, followed by suspension at 22.9%.
Do older Infiniti Q50 cars fail their MOT more often?
Infiniti Q50 cars aged 6 to 10 years passed 76.4% of MOT tests in 2025, against 69.2% for cars aged 11 years and over.
Does this mean every Infiniti Q50 has these problems?
No. These are the items testers recorded across every Infiniti Q50 that failed in 2025. They show where the model most often needs attention, not the condition of any individual car.
How do I see a specific Infiniti Q50's MOT history?
Enter its registration on the free Carpeep MOT history check to see that car's own test results, failures, advisories and recorded mileages.
MOT figures are aggregated from the DVSA MOT Anonymised data set for 2025: class 4 initial tests, retests excluded, with failure items from failed tests (advisories and minor defects excluded), licensed under the Open Government Licence v3.0. MOT results describe roadworthiness at test, not mechanical reliability.