1997 Land Rover Defender — MOT failures & pass rate
21,153 MOT tests on the 1997 Land Rover Defender are in this dataset, and 74.9% of them passed. Large SUVs of a similar age fail at 24.2%, so the 1997 Defender sits squarely on the average. Failures cluster in lighting & signalling, suspension and body, structure & corrosion.
What the MOT record shows
Lighting & signalling dominates the failure mix at 17.2% of all tests — 6.3 points clear of suspension, so it is the first thing to check.
At component level the recurring items are chassis condition, component mounting prescribed areas and headlamp aim — chassis condition alone was recorded 1,321 times.
Mileage is the strongest signal on the record: 13.7% of 0-30k cars fail, rising to 26.7% once past 150k.
Advisories point at the next bill rather than this one: suspension was flagged on 32.2% of tests without failing them.
The trend is improving — the fail rate fell from 27.2% in 2021 to 23.3% in 2025, as the worst-kept examples leave the fleet.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 17.2% | 3,644 |
| 2 | Suspension | 10.9% | 2,305 |
| 3 | Body, structure & corrosion | 10.3% | 2,183 |
| 4 | Steering | 8.5% | 1,798 |
| 5 | Brakes | 7.4% | 1,556 |
| 6 | Visibility | 5.8% | 1,233 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Chassis condition | 1,321 |
| 2 | Component mounting prescribed areas | 1,187 |
| 3 | Headlamp aim | 1,146 |
| 4 | Shock absorbers | 994 |
| 5 | Rear fog lamp | 979 |
| 6 | Track rod end | 895 |
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 | 32.2% | 6,803 |
| 2 | Emissions & environmental | 29.8% | 6,315 |
| 3 | Brakes | 22.5% | 4,751 |
| 4 | Steering | 16.6% | 3,504 |
| 5 | Body, structure & corrosion | 16.4% | 3,480 |
| 6 | Seat belts & restraints | 12.4% | 2,617 |
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 | 505 | 13.7% |
| 30-60k | 771 | 17.8% |
| 60-90k | 1,981 | 22.4% |
| 90-120k | 3,879 | 24.9% |
| 120-150k | 4,810 | 25.8% |
| 150k+ | 9,175 | 26.7% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Diesel | 20,944 | 25.1% |
| Petrol | 195 | 21.5% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 4,288 | 27.2% |
| 2022 | 4,536 | 25.6% |
| 2023 | 4,305 | 25.6% |
| 2024 | 4,058 | 23.7% |
| 2025 | 3,966 | 23.3% |
What to check before buying a 1997 Defender
On a 1997 Defender, lighting & signalling is what the MOT record says goes wrong most — it appeared in 17.2% of tests. Check these areas before you commit.
- Lighting & signalling (17.2% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Suspension (10.9% 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.
- Body, structure & corrosion (10.3% 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+.
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 1997 Land Rover Defenders pass their MOT?
74.9% of the 21,153 1997 Land Rover Defender MOT tests in this dataset passed — a 25.1% fail rate.
What is the most common MOT failure on a 1997 Land Rover Defender?
Lighting & signalling, recorded in 17.2% of tests, followed by suspension (10.9%).
Does the 1997 Defender get worse with mileage?
Its MOT fail rate rises from 13.7% in the 0-30k band to 26.7% in the 150k+ band.
Methodology & source. Based on 21,153 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.