1986 Rover Mini — MOT failures & pass rate
The 1986 Rover Mini passed 80.1% of its 603 recorded MOT tests. City cars of a similar age fail at 20.7%, so the 1986 Mini sits squarely on the average. Failures cluster in lighting & signalling, suspension and brakes.
What the MOT record shows
No single area dominates — lighting & signalling (10.8%) and suspension (8.1%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are service brake performance, non catalyst emissions and headlamp aim — service brake performance alone was recorded 46 times.
Mileage matters less than usual here: the 1986 Mini fails 16.2% of the time in the 0-30k band and 19.4% at 60-90k, a spread of only 3.1 points.
Advisories point at the next bill rather than this one: suspension was flagged on 21.1% of tests without failing them.
The trend is improving — the fail rate fell from 23.8% in 2021 to 21.3% in 2025, as the worst-kept examples leave the fleet.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 10.8% | 65 |
| 2 | Suspension | 8.1% | 49 |
| 3 | Brakes | 8.0% | 48 |
| 4 | Emissions & environmental | 7.8% | 47 |
| 5 | Body, structure & corrosion | 5.8% | 35 |
| 6 | Visibility | 4.6% | 28 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Service brake performance | 46 |
| 2 | Non catalyst emissions | 41 |
| 3 | Headlamp aim | 29 |
| 4 | Position lamp | 27 |
| 5 | Wheel bearings | 24 |
| 6 | Joints | 23 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Suspension | 21.1% | 127 |
| 2 | Emissions & environmental | 10.4% | 63 |
| 3 | Brakes | 9.8% | 59 |
| 4 | Body, structure & corrosion | 9.0% | 54 |
| 5 | Other defects | 6.6% | 40 |
| 6 | Tyres | 6.1% | 37 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 0-30k | 142 | 16.2% |
| 30-60k | 249 | 22.9% |
| 60-90k | 186 | 19.4% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 130 | 23.8% |
| 2022 | 116 | 18.1% |
| 2023 | 112 | 19.6% |
| 2024 | 118 | 16.1% |
| 2025 | 127 | 21.3% |
What to check before buying a 1986 Mini
On a 1986 Mini, lighting & signalling is what the MOT record says goes wrong most — it appeared in 10.8% of tests. Check these areas before you commit.
- Lighting & signalling (10.8% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Suspension (8.1% of tests): Worn drop links, bushes, springs or shocks — listen for knocks over bumps and check for uneven tyre wear. Typical repair: £150–£450 per corner.
- Brakes (8.0% of tests): Pads/discs are routine wear; binding, imbalance or corroded pipes are more serious — test for pulling under braking. Typical repair: £100–£350 per axle.
Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.
Frequently asked questions
How many 1986 Rover Minis pass their MOT?
80.1% of the 603 1986 Rover Mini MOT tests in this dataset passed — a 19.9% fail rate.
What is the most common MOT failure on a 1986 Rover Mini?
Lighting & signalling, recorded in 10.8% of tests, followed by suspension (8.1%).
Does the 1986 Mini get worse with mileage?
Its MOT fail rate rises from 16.2% in the 0-30k band to 19.4% in the 60-90k band.
Methodology & source. Based on 603 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-27. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.