1992 Land Rover Defender — MOT failures & pass rate
9,263 MOT tests on the 1992 Land Rover Defender are in this dataset, and 74.9% of them passed. Large SUVs of a similar age fail 23.6% of the time, so this is 1.6pp worse than the group it competes with. Failures cluster in lighting & signalling, body, structure & corrosion and suspension.
What the MOT record shows
One area stands out: lighting & signalling, recorded in 18.6% of tests against 10.8% for the next-worst category.
At component level the recurring items are headlamp aim, chassis condition and position lamp — headlamp aim alone was recorded 597 times.
Condition tracks the odometer closely. Failures run at 21.2% in the 0-30k band and 27.6% in the 150k+ band, a 6.4-point spread.
Suspension is the most common advisory, noted on 28.9% of tests — work that passed today but is likely due soon.
The trend is improving — the fail rate fell from 26.8% in 2021 to 23.9% in 2025, as the worst-kept examples leave the fleet.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 18.6% | 1,726 |
| 2 | Body, structure & corrosion | 10.8% | 1,000 |
| 3 | Suspension | 10.5% | 969 |
| 4 | Brakes | 9.3% | 859 |
| 5 | Steering | 8.3% | 770 |
| 6 | Visibility | 6.4% | 595 |
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 | 597 |
| 2 | Chassis condition | 584 |
| 3 | Position lamp | 558 |
| 4 | Component mounting prescribed areas | 537 |
| 5 | Stop lamp | 435 |
| 6 | Rear fog lamp | 426 |
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 | 28.9% | 2,677 |
| 2 | Emissions & environmental | 24.8% | 2,301 |
| 3 | Brakes | 20.8% | 1,928 |
| 4 | Body, structure & corrosion | 17.9% | 1,661 |
| 5 | Steering | 17.6% | 1,633 |
| 6 | Seat belts & restraints | 11.3% | 1,046 |
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 | 344 | 21.2% |
| 30-60k | 341 | 23.5% |
| 60-90k | 891 | 20.4% |
| 90-120k | 1,791 | 24.5% |
| 120-150k | 1,961 | 24.1% |
| 150k+ | 3,920 | 27.6% |
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Diesel | 8,983 | 25.2% |
| Petrol | 280 | 25.0% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 1,939 | 26.8% |
| 2022 | 1,959 | 25.8% |
| 2023 | 1,838 | 24.1% |
| 2024 | 1,773 | 25.0% |
| 2025 | 1,754 | 23.9% |
What to check before buying a 1992 Defender
The failure pattern for this year is specific enough to inspect against: lighting & signalling accounted for 18.6% of tests. Start there.
- Lighting & signalling (18.6% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Body, structure & corrosion (10.8% 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 (10.5% 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 1992 Land Rover Defenders pass their MOT?
74.9% of the 9,263 1992 Land Rover Defender MOT tests in this dataset passed — a 25.1% fail rate.
What is the most common MOT failure on a 1992 Land Rover Defender?
Lighting & signalling, recorded in 18.6% of tests, followed by body, structure & corrosion (10.8%).
Does the 1992 Defender get worse with mileage?
Its MOT fail rate rises from 21.2% in the 0-30k band to 27.6% in the 150k+ band.
Methodology & source. Based on 9,263 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.