MOT failure data · 2025
Morris Minor MOT problems
Across every Morris Minor that failed its 2025 MOT, the defect testers recorded most often was service brake imbalance across an axle, on 9.49% of failure items. The broadest problem area was brakes at 40.14%. These are recorded defects across the model, not a diagnosis of any one car.
Most common Morris Minor MOT failures
| # | Recorded defect | Area | Share |
|---|---|---|---|
| 1 | Service brake imbalance across an axle | Brakes | 9.49% |
| 2 | Service brake performance excessively binding | Brakes | 5.55% |
| 3 | Steering rack gaiter missing or no longer prevents the ingress of dirt | Steering | 5.47% |
| 4 | Rbt (sp) efficiency below requirements | Brakes | 4.1% |
| 5 | Component mounting prescribed areas prescribed area excessively corroded significantly reducing structural strength | Suspension | 4.02% |
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 5 is not shown.
What this means if you are buying one
Use it as a viewing checklist. If you are looking at a Morris Minor, 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 Morris Minor buying guide covers what to check beyond the MOT.
Checking a specific Morris Minor?
Enter its registration for finance, write-off, stolen, mileage and keeper history.
Morris Minor MOT FAQs
What does a Morris Minor most commonly fail its MOT on?
The single most recorded defect on Morris Minor cars failing their 2025 MOT was "service brake imbalance across an axle", appearing on 9.49% of failure items.
Does this mean my Morris Minor will fail?
No. This is what testers recorded across every Morris Minor that failed in 2025. It shows where this model tends to need attention, not the condition of any individual car. The Morris Minor passed 82.23% of its initial tests.
How do I see a specific Morris Minor's MOT history?
Enter its registration on our free MOT history check to see that car's own test results, advisories and recorded mileages.
See also: Morris Minor MOT pass rate · used Morris Minor buying guide · free MOT history check
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.