78.9%
Infiniti Q30
Infiniti Q30 MOT pass rate and common problems
The Infiniti Q30 passed 78.9% of its initial MOT tests in 2025, 6.6 percentage points above the 72.3% UK average. The item testers recorded most often was coil spring fractured or broken.
Checking a specific car? Its own results, advisories and recorded mileages are in a free MOT history check.
How the Q30 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 Q30 runs 0.6 points ahead of the Infiniti average. It is 1st of the 2 Infiniti models in the data. The average Q30 arrived at its test 8.3 years old with 67,137 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.
Q30 MOT pass rate by age
The same 2025 tests split by the car's age at test.
Infiniti Q30 cars aged 3 to 5 years passed 91% of MOT tests. For cars aged 6 to 10 years that fell to 78.6%, a drop of 12.4 percentage points.
| Age at test | Tests | Pass rate | vs UK average |
|---|---|---|---|
| 3 to 5 years | 111 | 91% | 18.7 pts above |
| 6 to 10 years | 4,739 | 78.6% | 6.3 pts above |
That is a steep decline with age, so the headline rate flatters older examples. The UK average of 72.3% covers cars of every age, so compare like with like.
Where Q30 failures cluster
Every failure item recorded on Infiniti Q30 cars in 2025, grouped into the DVSA's test areas.
Suspension and lamps, reflectors and electrical equipment together account for 47.1% of recorded failure items. These are recorded failures across the model, not faults every car has.
The 10 most common Q30 MOT failures
Specific items recorded on Infiniti Q30 cars that failed their 2025 MOT, as a share of all recorded failure items.
Together these 10 items make up 56.1% of everything testers recorded against failed Infiniti Q30 cars. The rest is spread across many smaller items, and one failed test often records several at once.
What to look at on a Q30
The recorded failures above, grouped by area, biggest first.
1
Suspension
Recorded most often: coil spring fractured or broken, linkage ball joint dust cover ball joint dust cover no longer prevents the ingress of dirt and ball joint dust cover no longer prevents the ingress of dirt. 23.2% of failure items.
2
Tyres
Recorded most often: tread depth below requirements of 1.6mm and condition has a cut in excess of the requirements deep enough to reach the ply or cords. 11.4% of failure items.
3
Lamps, reflectors and electrical equipment
Recorded most often: headlamp aim too low and headlamp not working on dipped beam. 7.5% of failure items.
4
Brakes
Recorded most often: brake pads less than 1.5 mm thick. 5.8% of failure items.
The car's own MOT history matters more than any model average. A free MOT history check shows whether a specific Q30 has failed on these items before, or had them noted as advisories. Buying one? See the used Infiniti Q30 buying guide.
Already found one?
Check its finance, write-off, theft, mileage and keeper history with a £15 vehicle history report.
Infiniti Q30 MOT FAQs
What is the Infiniti Q30 MOT pass rate?
78.9% of Infiniti Q30 cars passed their initial MOT first time in 2025, from 4,850 tests. That is 6.6 percentage points above the 72.3% average for all cars, and ranks 216th of 575 models.
What does an Infiniti Q30 most commonly fail its MOT on?
The item testers recorded most often on Infiniti Q30 cars failing their 2025 MOT was coil spring fractured or broken, on 9.5% of failure items. Next were linkage ball joint dust cover ball joint dust cover no longer prevents the ingress of dirt (9.4%) and tread depth below requirements of 1.6mm (8.4%).
Which area causes the most Infiniti Q30 MOT failures?
Across every recorded failure item, the largest area was suspension at 27.3%, followed by lamps, reflectors and electrical equipment at 19.7%.
Do older Infiniti Q30 cars fail their MOT more often?
Infiniti Q30 cars aged 3 to 5 years passed 91% of MOT tests in 2025, against 78.6% for cars aged 6 to 10 years.
Does this mean every Infiniti Q30 has these problems?
No. These are the items testers recorded across every Infiniti Q30 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 Q30'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.