1998 Rover Mini — MOT failures & pass rate
Across 5,253 MOT tests analysed for the 1998 Rover Mini, the most common recorded failure areas were lighting & signalling, suspension and emissions & environmental. Its pass rate of 77.8% was above the average for cars of a similar age (76.1%). Higher-mileage examples failed more often — 26.8% in the 90-120k group versus 18.2% in the 0-30k group.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 10.8% | 568 |
| 2 | Suspension | 8.7% | 455 |
| 3 | Emissions & environmental | 8.6% | 452 |
| 4 | Brakes | 6.7% | 352 |
| 5 | Body, structure & corrosion | 6.0% | 314 |
| 6 | Visibility | 5.4% | 284 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Catalyst emissions | 631 |
| 2 | Steering rack | 313 |
| 3 | Headlamp aim | 310 |
| 4 | Service brake performance | 235 |
| 5 | Washers | 218 |
| 6 | Ball joint | 195 |
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 | 25.1% | 1,321 |
| 2 | Emissions & environmental | 13.8% | 724 |
| 3 | Brakes | 11.6% | 611 |
| 4 | Body, structure & corrosion | 10.7% | 562 |
| 5 | Tyres | 9.9% | 520 |
| 6 | Other defects | 6.6% | 347 |
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 | 1,053 | 18.2% |
| 30-60k | 2,188 | 22.6% |
| 60-90k | 1,690 | 23.2% |
| 90-120k | 314 | 26.8% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 1,101 | 24.3% |
| 2022 | 1,133 | 22.5% |
| 2023 | 1,067 | 21.3% |
| 2024 | 997 | 21.9% |
| 2025 | 955 | 20.6% |
What to check before buying a 1998 Mini
Before buying a 1998 Rover Mini, focus on the areas it most often fails on. Lighting & signalling accounted for 10.8% of tests for this year.
- 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 (8.7% 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.
- Emissions & environmental (8.6% of tests): More common on older diesels (DPF/EGR) — can be expensive; check for warning lights and smoke. Typical repair: £100–£600.
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 1998 Rover Minis pass their MOT?
77.8% of the 5,253 1998 Rover Mini MOT tests in this dataset passed — a 22.2% fail rate.
What is the most common MOT failure on a 1998 Rover Mini?
Lighting & signalling, recorded in 10.8% of tests, followed by suspension (8.7%).
Does the 1998 Mini get worse with mileage?
Its MOT fail rate rises from 18.2% in the 0-30k band to 26.8% in the 90-120k band.
Methodology & source. Based on 5,253 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-01. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.