1980 Rover Mini — MOT failures & pass rate
Across 324 MOT tests, the 1980 Rover Mini recorded an 81.5% pass rate. City cars of a similar age fail at 17.7%, so the 1980 Mini sits squarely on the average. Failures cluster in lighting & signalling, body, structure & corrosion and brakes.
What the MOT record shows
No single area dominates — lighting & signalling (9.6%) and body, structure & corrosion (7.4%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are non catalyst emissions, service brake performance and ball joint — non catalyst emissions alone was recorded 21 times.
A 60-90k example is materially riskier than a 0-30k one: 21.7% versus 9.8%.
Advisories point at the next bill rather than this one: suspension was flagged on 18.2% of tests without failing them.
The trend is worsening — 16.7% of tests failed in 2021 against 19.0% in 2025, the usual pattern as a fleet ages.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 9.6% | 31 |
| 2 | Body, structure & corrosion | 7.4% | 24 |
| 3 | Brakes | 7.1% | 23 |
| 4 | Emissions & environmental | 7.1% | 23 |
| 5 | Suspension | 6.8% | 22 |
| 6 | Visibility | 5.9% | 19 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Non catalyst emissions | 21 |
| 2 | Service brake performance | 21 |
| 3 | Ball joint | 17 |
| 4 | Headlamp | 14 |
| 5 | Steering rack | 12 |
| 6 | Wipers | 12 |
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 | 18.2% | 59 |
| 2 | Body, structure & corrosion | 10.5% | 34 |
| 3 | Emissions & environmental | 9.3% | 30 |
| 4 | Other defects | 7.7% | 25 |
| 5 | Steering | 6.5% | 21 |
| 6 | Brakes | 4.0% | 13 |
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 | 82 | 9.8% |
| 30-60k | 100 | 22.0% |
| 60-90k | 115 | 21.7% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 90 | 16.7% |
| 2022 | 60 | 15.0% |
| 2023 | 57 | 24.6% |
| 2024 | 59 | 18.6% |
| 2025 | 58 | 19.0% |
What to check before buying a 1980 Mini
On a 1980 Mini, lighting & signalling is what the MOT record says goes wrong most — it appeared in 9.6% of tests. Check these areas before you commit.
- Lighting & signalling (9.6% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Body, structure & corrosion (7.4% of tests): The one to take seriously on older cars — corrosion to structural areas can be costly and is an MOT failure. Typical repair: £200–£1,500+.
- Brakes (7.1% 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 1980 Rover Minis pass their MOT?
81.5% of the 324 1980 Rover Mini MOT tests in this dataset passed — a 18.5% fail rate.
What is the most common MOT failure on a 1980 Rover Mini?
Lighting & signalling, recorded in 9.6% of tests, followed by body, structure & corrosion (7.4%).
Does the 1980 Mini get worse with mileage?
Its MOT fail rate rises from 9.8% in the 0-30k band to 21.7% in the 60-90k band.
Methodology & source. Based on 324 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.