2003 Land Rover Discovery — MOT failures & pass rate
Across 38,449 MOT tests analysed for the 2003 Land Rover Discovery, the most common recorded failure areas were lighting & signalling, suspension and brakes. Its pass rate of 75.4% was in line with the average for large SUVs of a similar age (74.6%).
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 15.1% | 5,814 |
| 2 | Suspension | 12.6% | 4,824 |
| 3 | Brakes | 10.2% | 3,909 |
| 4 | Body, structure & corrosion | 9.5% | 3,661 |
| 5 | Steering | 5.8% | 2,213 |
| 6 | Visibility | 4.1% | 1,575 |
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 | 2,531 |
| 2 | Chassis condition | 2,336 |
| 3 | Component mounting prescribed areas | 2,071 |
| 4 | Ball joint | 1,965 |
| 5 | Position lamp | 1,927 |
| 6 | Stop lamp | 1,618 |
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 | 32.4% | 12,447 |
| 2 | Suspension | 32.4% | 12,438 |
| 3 | Brakes | 25.5% | 9,806 |
| 4 | Body, structure & corrosion | 23.8% | 9,163 |
| 5 | Steering | 16.2% | 6,219 |
| 6 | Lighting & signalling | 13.8% | 5,285 |
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 | 73 | 21.9% |
| 30-60k | 550 | 15.6% |
| 60-90k | 2,488 | 20.9% |
| 90-120k | 7,372 | 24.7% |
| 120-150k | 11,414 | 24.9% |
| 150k+ | 16,507 | 25.2% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Diesel | 37,276 | 24.6% |
| Petrol | 1,159 | 24.5% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 9,509 | 25.7% |
| 2022 | 8,660 | 25.2% |
| 2023 | 7,653 | 24.6% |
| 2024 | 6,732 | 24.3% |
| 2025 | 5,895 | 22.5% |
What to check before buying a 2003 Discovery
Before buying a 2003 Land Rover Discovery, focus on the areas it most often fails on. Lighting & signalling accounted for 15.1% of tests for this year.
- Lighting & signalling (15.1% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Suspension (12.6% 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.
- Brakes (10.2% of tests): Pads/discs are routine wear; binding, imbalance or corroded pipes are more serious — test for pulling under braking. Typical repair: £100–£350 per axle.
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 2003 Land Rover Discoverys pass their MOT?
75.4% of the 38,449 2003 Land Rover Discovery MOT tests in this dataset passed — a 24.6% fail rate.
What is the most common MOT failure on a 2003 Land Rover Discovery?
Lighting & signalling, recorded in 15.1% of tests, followed by suspension (12.6%).
Does the 2003 Discovery get worse with mileage?
Its MOT fail rate rises from 21.9% in the 0-30k band to 25.2% in the 150k+ band.
Methodology & source. Based on 38,449 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.