1989 Land Rover Defender — MOT failures & pass rate
Across 11,706 MOT tests, the 1989 Land Rover Defender recorded a 75.8% pass rate. 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 19.1% of tests against 9.9% for the next-worst category.
At component level the recurring items are headlamp aim, position lamp and chassis condition — headlamp aim alone was recorded 757 times.
A 150k+ example is materially riskier than a 0-30k one: 23.8% versus 18.1%.
Fuel type barely separates them — petrol fails 23.1% of the time against 24.4% for diesel.
Emissions & environmental is the most common advisory, noted on 30.0% of tests — work that passed today but is likely due soon.
The trend is improving — the fail rate fell from 25.1% in 2021 to 22.1% in 2025, as the worst-kept examples leave the fleet.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 19.1% | 2,239 |
| 2 | Body, structure & corrosion | 9.9% | 1,154 |
| 3 | Suspension | 9.5% | 1,110 |
| 4 | Brakes | 8.3% | 971 |
| 5 | Steering | 7.8% | 911 |
| 6 | Visibility | 6.9% | 807 |
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 | 757 |
| 2 | Position lamp | 746 |
| 3 | Chassis condition | 620 |
| 4 | Rear fog lamp | 589 |
| 5 | Headlamp | 579 |
| 6 | Washers | 536 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Emissions & environmental | 30.0% | 3,518 |
| 2 | Suspension | 27.1% | 3,170 |
| 3 | Brakes | 20.3% | 2,377 |
| 4 | Steering | 19.7% | 2,304 |
| 5 | Body, structure & corrosion | 18.6% | 2,171 |
| 6 | Seat belts & restraints | 10.8% | 1,264 |
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 | 426 | 18.1% |
| 30-60k | 486 | 21.0% |
| 60-90k | 1,044 | 21.2% |
| 90-120k | 2,146 | 25.6% |
| 120-150k | 2,836 | 26.3% |
| 150k+ | 4,746 | 23.8% |
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Diesel | 10,391 | 24.4% |
| Petrol | 1,299 | 23.1% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 2,495 | 25.1% |
| 2022 | 2,473 | 24.9% |
| 2023 | 2,330 | 23.9% |
| 2024 | 2,249 | 24.8% |
| 2025 | 2,159 | 22.1% |
What to check before buying a 1989 Defender
The failure pattern for this year is specific enough to inspect against: lighting & signalling accounted for 19.1% of tests. Start there.
- Lighting & signalling (19.1% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Body, structure & corrosion (9.9% 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 (9.5% 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 1989 Land Rover Defenders pass their MOT?
75.8% of the 11,706 1989 Land Rover Defender MOT tests in this dataset passed — a 24.2% fail rate.
What is the most common MOT failure on a 1989 Land Rover Defender?
Lighting & signalling, recorded in 19.1% of tests, followed by body, structure & corrosion (9.9%).
Does the 1989 Defender get worse with mileage?
Its MOT fail rate rises from 18.1% in the 0-30k band to 23.8% in the 150k+ band.
Methodology & source. Based on 11,706 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.