2003 Toyota Corolla — MOT failures & pass rate
Across 42,683 MOT tests analysed for the 2003 Toyota Corolla, the most common recorded failure areas were lighting & signalling, brakes and suspension. Its pass rate of 74.5% was above the average for small family cars of a similar age (71.7%). Higher-mileage examples failed more often — 31.9% in the 150k+ group versus 12.3% in the 0-30k group.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 18.3% | 7,792 |
| 2 | Brakes | 13.1% | 5,600 |
| 3 | Suspension | 7.8% | 3,344 |
| 4 | Visibility | 6.6% | 2,820 |
| 5 | Emissions & environmental | 5.0% | 2,115 |
| 6 | Body, structure & corrosion | 4.9% | 2,084 |
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 | 4,507 |
| 2 | Headlamp | 4,150 |
| 3 | Wipers | 2,290 |
| 4 | Service brake performance | 2,232 |
| 5 | Position lamp | 1,807 |
| 6 | Brake pads | 1,589 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Brakes | 38.8% | 16,565 |
| 2 | Suspension | 33.1% | 14,122 |
| 3 | Tyres | 26.8% | 11,418 |
| 4 | Lighting & signalling | 23.2% | 9,921 |
| 5 | Other defects | 17.4% | 7,420 |
| 6 | Emissions & environmental | 14.4% | 6,164 |
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 | 457 | 12.3% |
| 30-60k | 4,473 | 17.8% |
| 60-90k | 11,147 | 22.1% |
| 90-120k | 13,764 | 27.1% |
| 120-150k | 8,369 | 29.0% |
| 150k+ | 4,455 | 31.9% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Petrol | 40,286 | 25.4% |
| Diesel | 2,393 | 27.2% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 11,663 | 25.3% |
| 2022 | 9,827 | 24.6% |
| 2023 | 8,458 | 25.8% |
| 2024 | 7,033 | 26.5% |
| 2025 | 5,702 | 26.0% |
What to check before buying a 2003 Corolla
Before buying a 2003 Toyota Corolla, focus on the areas it most often fails on. Lighting & signalling accounted for 18.3% of tests for this year.
- 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.
- Brakes (13.1% 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.
- Suspension (7.8% 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 2003 Toyota Corollas pass their MOT?
74.5% of the 42,683 2003 Toyota Corolla MOT tests in this dataset passed — a 25.5% fail rate.
What is the most common MOT failure on a 2003 Toyota Corolla?
Lighting & signalling, recorded in 18.3% of tests, followed by brakes (13.1%).
Does the 2003 Corolla get worse with mileage?
Its MOT fail rate rises from 12.3% in the 0-30k band to 31.9% in the 150k+ band.
Methodology & source. Based on 42,683 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.