1990 Land Rover Defender — MOT failures & pass rate
The 1990 Land Rover Defender passed 75.7% of its 9,948 recorded MOT tests. That is effectively the same as large SUVs of a similar age (23.6% fail rate), so the MOT record here is unremarkable in either direction. Failures cluster in lighting & signalling, body, structure & corrosion and suspension.
What the MOT record shows
One area stands out: lighting & signalling, recorded in 18.3% of tests against 10.2% for the next-worst category.
At component level the recurring items are headlamp aim, chassis condition and position lamp — headlamp aim alone was recorded 629 times.
A 150k+ example is materially riskier than a 0-30k one: 24.8% versus 17.7%.
The petrol cars hold up better: 22.0% fail against 24.6% for diesel, a 2.5-point gap across 9,943 tests.
Suspension is the most common advisory, noted on 28.2% of tests — work that passed today but is likely due soon.
The trend is improving — the fail rate fell from 26.9% in 2021 to 21.7% in 2025, as the worst-kept examples leave the fleet.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 18.3% | 1,822 |
| 2 | Body, structure & corrosion | 10.2% | 1,010 |
| 3 | Suspension | 9.1% | 907 |
| 4 | Brakes | 8.1% | 809 |
| 5 | Steering | 7.6% | 755 |
| 6 | Visibility | 6.5% | 645 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Headlamp aim | 629 |
| 2 | Chassis condition | 570 |
| 3 | Position lamp | 525 |
| 4 | Component mounting prescribed areas | 449 |
| 5 | Stop lamp | 440 |
| 6 | Rear fog lamp | 397 |
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 | 28.2% | 2,806 |
| 2 | Emissions & environmental | 28.0% | 2,786 |
| 3 | Brakes | 21.0% | 2,087 |
| 4 | Steering | 19.8% | 1,970 |
| 5 | Body, structure & corrosion | 19.2% | 1,911 |
| 6 | Seat belts & restraints | 10.6% | 1,052 |
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 | 328 | 17.7% |
| 30-60k | 443 | 23.3% |
| 60-90k | 917 | 23.9% |
| 90-120k | 1,699 | 24.2% |
| 120-150k | 2,326 | 24.6% |
| 150k+ | 4,208 | 24.8% |
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Diesel | 9,030 | 24.6% |
| Petrol | 913 | 22.0% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 2,135 | 26.9% |
| 2022 | 2,074 | 25.3% |
| 2023 | 1,997 | 23.3% |
| 2024 | 1,887 | 23.9% |
| 2025 | 1,855 | 21.7% |
What to check before buying a 1990 Defender
The failure pattern for this year is specific enough to inspect against: lighting & signalling accounted for 18.3% of tests. Start there.
- Lighting & signalling (18.3% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Body, structure & corrosion (10.2% 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+.
- Suspension (9.1% 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.
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 1990 Land Rover Defenders pass their MOT?
75.7% of the 9,948 1990 Land Rover Defender MOT tests in this dataset passed — a 24.3% fail rate.
What is the most common MOT failure on a 1990 Land Rover Defender?
Lighting & signalling, recorded in 18.3% of tests, followed by body, structure & corrosion (10.2%).
Does the 1990 Defender get worse with mileage?
Its MOT fail rate rises from 17.7% in the 0-30k band to 24.8% in the 150k+ band.
Methodology & source. Based on 9,948 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.