Mini John Cooper Works MOT pass rate and common problems
91.5% of 45,970 Mini John Cooper Works MOT tests pass.
The John Cooper Works passes its MOT 91.5% of the time — well above the average across all Mini models, which sits at 83.6%.
The Mini John Cooper Works passes its MOT 91.5% of the time — well above the national average for cars, which sits at 79.2%.
Own this Mini John Cooper Works?
This is the average across every Mini John Cooper Works in the dataset. Look up your own registration for its actual MOT history, and a free place to keep its maintenance records.
Have service invoices? Upload and keep them with your car’s history →
How to check and keep your Mini’s service history →
Pass rate by vehicle age
Pass rate declines noticeably with age, from 94.2% at 0–3 years to 76.1% at 15+ years.
| Vehicle age | Pass rate | Tests | Average mileage |
|---|---|---|---|
| 0–3 years | 94.2% | 4,959 | 20,100 miles |
| 3–6 years | 93.3% | 19,221 | 28,074 miles |
| 6–10 years | 89.9% | 18,693 | 47,101 miles |
| 10–15 years | 86.4% | 2,988 | 65,323 miles |
| 15+ years | 76.1% | 109 | 85,295 miles |
Common MOT failure reasons for the Mini John Cooper Works
The most common reason the Mini John Cooper Works fails its MOT is tyres — present in 50.9% of failed tests, most often logged as "Has a bulge, caused by separation or partial failure of its structure".
| Category | Share of failed tests | Example |
|---|---|---|
| Tyres | 50.9% | Has a bulge, caused by separation or partial failure of its structure |
| Lamps, reflectors and electrical equipment | 21.2% | Too high |
| Visibility | 17.4% | Does not clear the windscreen effectively |
| Brakes | 11.9% | Less than 1.5 mm thick |
| Suspension | 7.4% | Pin or bush excessively worn |
| Noise, emissions and leaks | 6.1% | Lambda reading after 2nd fast idle outside specified limits |
| Identification of the vehicle | 3.8% | Does not conform to the specified requirements |
| Road Wheels | 3.3% | Fixing missing |
| Body, chassis, structure | 1.2% | Damaged or deteriorated resulting in excessive movement |
| Steering | 0.7% | Ball joint has excessive play |
Buying a used Mini John Cooper Works: what to check
These checks follow the Mini John Cooper Works’s own MOT record: the areas it fails on most often, and how that changes as the car gets older. None of them replaces a mechanic’s inspection, but they tell you where to look first.
The biggest drop in pass rate for the Mini John Cooper Works comes between 10–15 years and 15+ years old, from 86.4% to 76.1%. If you are looking at one in or just past that range, read its MOT history closely.
By mileage, the steepest fall is from 30,000–60,000 mi to 60,000–90,000 mi: 90.8% down to 87.2%. Mileage matters as well as age, so compare the car’s recorded mileages with its year.
1. Tyres
Recorded in 50.9% of failed Mini John Cooper Works MOTs.
Check tread depth across the whole width of every tyre, including the inner edge. Uneven wear can point to alignment or suspension problems. Look for cuts and bulges in the sidewalls.
2. Lights and electrics
Recorded in 21.2% of failed Mini John Cooper Works MOTs. 19.3% of tests at 15+ years failed on lights and electrics, against 1.8% at 0–3 years.
Walk round with the lights on: headlights (dipped and main), indicators, brake lights, fog light and number-plate lamp. Check the dashboard warning lights come on with the ignition, then go out once the engine starts.
3. Windscreen and wipers
Recorded in 17.4% of failed Mini John Cooper Works MOTs. 4.6% of tests at 15+ years failed on windscreen and wipers, against 0.8% at 0–3 years.
Look for windscreen chips and cracks in the driver’s line of sight, and check the wipers clear the screen and the washers work.
4. Brakes
Recorded in 11.9% of failed Mini John Cooper Works MOTs. 10.1% of tests at 15+ years failed on brakes, against 0.5% at 0–3 years.
On the test drive, the car should stop straight without pulling or juddering, and the handbrake should hold it on a slope. Look through the wheels for scored or heavily lipped discs.
5. Suspension
Recorded in 7.4% of failed Mini John Cooper Works MOTs. Rare on young cars, but 11.0% of tests at 15+ years failed on suspension.
Listen for knocks over bumps and speed humps, and check the car sits level. Push down on each corner: it should settle rather than keep bouncing.
Check the car’s own MOT history. Averages describe the model, not the car in front of you. Look up its registration for past failures, advisories that were never fixed, and gaps or dips in the recorded mileage.
Ask for the service history. Invoices show what was done and when; a stamp alone shows less. See how to check Mini service history and what a service history check can tell you.
Related Mini models
- Mini Cooper S — 90.5% pass rate
- Mini Countryman — 90.2% pass rate
- Mini One — 86.1% pass rate
- Mini Clubman — 86.3% pass rate
- Mini Paceman — 88.5% pass rate
- Mini Cooper D — 78.0% pass rate
Frequently asked questions
- What is the MOT pass rate for the Mini John Cooper Works?
- 91.5% of Mini John Cooper Works MOT tests pass, based on 45,970 tests in the DVSA anonymised MOT tests and results dataset.
- What are the most common MOT failures for the Mini John Cooper Works?
- The most common reason the Mini John Cooper Works fails its MOT is tyres — present in 50.9% of failed tests, most often logged as "Has a bulge, caused by separation or partial failure of its structure".
- What are the common problems with the Mini John Cooper Works?
- Going by its MOT results, the most common problem areas on the Mini John Cooper Works are tyres; lights and electrics; windscreen and wipers.
- What should I check when buying a used Mini John Cooper Works?
- Start with the areas it most often fails its MOT on: tyres; lights and electrics; windscreen and wipers; brakes; suspension. Then check the specific car's MOT history by registration for failures, advisories and mileage, and ask the seller for service invoices.
- Does this show the Mini John Cooper Works's service history?
- No — this is MOT test data, which covers roadworthiness, not servicing. A service history is a separate record of maintenance work, which a specific car only has if its owner has kept it. See the Mini service history guide for how to check and keep one.