2003 Mercedes-Benz Vaneo — MOT failures & pass rate
The 2003 Mercedes-Benz Vaneo passed 67.4% of its 907 recorded MOT tests. That is 5.0 percentage points worse than all cars of a similar age, which fail at 27.7%. Failures cluster in lighting & signalling, suspension and brakes.
What the MOT record shows
One area stands out: lighting & signalling, recorded in 21.4% of tests against 15.4% for the next-worst category.
At component level the recurring items are headlamp aim, coil spring and headlamp — headlamp aim alone was recorded 87 times.
Condition tracks the odometer closely. Failures run at 34.0% in the 0-30k band and 39.1% in the 120-150k band, a 5.2-point spread.
Brakes is the most common advisory, noted on 47.7% of tests — work that passed today but is likely due soon.
The trend is improving — the fail rate fell from 33.8% in 2021 to 28.4% in 2025, as the worst-kept examples leave the fleet.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 21.4% | 194 |
| 2 | Suspension | 15.4% | 140 |
| 3 | Brakes | 13.8% | 125 |
| 4 | Visibility | 9.7% | 88 |
| 5 | Body, structure & corrosion | 8.9% | 81 |
| 6 | Emissions & environmental | 7.3% | 66 |
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 | 87 |
| 2 | Coil spring | 64 |
| 3 | Headlamp | 62 |
| 4 | Wipers | 62 |
| 5 | Rigid brake pipes | 51 |
| 6 | Shock absorbers | 51 |
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 | 47.7% | 433 |
| 2 | Suspension | 33.3% | 302 |
| 3 | Tyres | 28.9% | 262 |
| 4 | Lighting & signalling | 28.2% | 256 |
| 5 | Other defects | 16.7% | 151 |
| 6 | Body, structure & corrosion | 16.3% | 148 |
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 | 106 | 34.0% |
| 30-60k | 152 | 25.0% |
| 60-90k | 215 | 30.2% |
| 90-120k | 161 | 32.9% |
| 120-150k | 46 | 39.1% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Petrol | 711 | 31.9% |
| Diesel | 196 | 35.2% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 302 | 33.8% |
| 2022 | 218 | 35.3% |
| 2023 | 176 | 33.0% |
| 2024 | 116 | 27.6% |
| 2025 | 95 | 28.4% |
What to check before buying a 2003 Vaneo
The failure pattern for this year is specific enough to inspect against: lighting & signalling accounted for 21.4% of tests. Start there.
- Lighting & signalling (21.4% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Suspension (15.4% 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 (13.8% 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 Mercedes-Benz Vaneos pass their MOT?
67.4% of the 907 2003 Mercedes-Benz Vaneo MOT tests in this dataset passed — a 32.6% fail rate.
What is the most common MOT failure on a 2003 Mercedes-Benz Vaneo?
Lighting & signalling, recorded in 21.4% of tests, followed by suspension (15.4%).
Does the 2003 Vaneo get worse with mileage?
Its MOT fail rate rises from 34.0% in the 0-30k band to 39.1% in the 120-150k band.
Methodology & source. Based on 907 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.