MOT failure data · 2025

MINI John MOT problems

Across every MINI John that failed its 2025 MOT, the defect testers recorded most often was condition has a bulge, caused by separation or partial failure of its structure, on 17.26% of failure items. The broadest problem area was tyres at 50.38%. These are recorded defects across the model, not a diagnosis of any one car.

Most common MINI John MOT failures

#	Recorded defect	Area	Share
1	Condition has a bulge, caused by separation or partial failure of its structure	Tyres	17.26%
2	Condition has a cut in excess of the requirements deep enough to reach the ply or cords	Tyres	11.77%
3	Tread depth tread depth below requirements of 1.6mm	Tyres	6.9%
4	Condition has ply or cords exposed	Tyres	6.16%
5	Wipers does not clear the windscreen effectively	Visibility	6.08%
6	Brake pads less than 1.5 mm thick	Brakes	3.96%
7	Condition has a lump, caused by separation or partial failure of its structure	Tyres	3.41%
8	Condition has a tear, caused by separation or partial failure of its structure	Tyres	3.02%
9	Coil spring fractured or broken	Suspension	2.13%
10	Registration plates does not conform to the specified requirements	Identification of the vehicle	2.13%

Shares are of all recorded failure items for this model, so they sum to less than 100% — a single failed test often records several defects, and the long tail below the top 10 is not shown.

What this means if you are buying one

Use it as a viewing checklist. If you are looking at a MINI John, these are the areas worth inspecting and worth asking about — and worth reading the car's own MOT history for, since a defect that keeps reappearing as an advisory is a better signal than any model-wide average.

The MOT record also has hard limits: it does not check the engine, clutch or gearbox, and it says nothing about outstanding finance, insurance write-off history, stolen markers or whether the mileage is genuine. Our used MINI John buying guide covers what to check beyond the MOT.

Checking a specific MINI John?

Enter its registration for finance, write-off, stolen, mileage and keeper history.

Other MINI models

MINI John MOT FAQs

What does a MINI John most commonly fail its MOT on?

The single most recorded defect on MINI John cars failing their 2025 MOT was "condition has a bulge, caused by separation or partial failure of its structure", appearing on 17.26% of failure items.

Does this mean my MINI John will fail?

No. This is what testers recorded across every MINI John that failed in 2025. It shows where this model tends to need attention, not the condition of any individual car. The MINI John passed 88.76% of its initial tests.

How do I see a specific MINI John's MOT history?

Enter its registration on our free MOT history check to see that car's own test results, advisories and recorded mileages.

Defect counts from the DVSA MOT Anonymised test-item data for 2025 (class 4 initial tests, failure items only — advisories and minor defects excluded), licensed under the Open Government Licence v3.0.