Mercedes-Benz Vaneo MOT pass rate & common failures
3,210 MOT tests on the Mercedes-Benz Vaneo (1997–2021) give it a 70.6% pass rate. All cars of a similar age fail 27.4% of the time, so this is 2.0pp worse than the group it competes with. Its most common failure areas are lighting & signalling, brakes and suspension.
What the MOT record shows
Lighting & signalling dominates the failure mix at 19.3% of all tests — 6.3 points clear of brakes, so it is the first thing to check.
At component level the recurring items are headlamp aim, headlamp and coil spring — headlamp aim alone was recorded 275 times.
Mileage matters less than usual here: the Vaneo fails 31.1% of the time in the 0-30k band and 28.3% at 150k+, a spread of only 2.9 points.
Fuel type barely separates them — petrol fails 29.2% of the time against 29.7% for diesel.
Advisories point at the next bill rather than this one: brakes was flagged on 43.3% of tests without failing them.
The trend is improving — the fail rate fell from 30.9% in 2021 to 28.4% in 2025, as the worst-kept examples leave the fleet.
How it compares
By model year
Every Vaneo model year with a usable sample. Years with their own detailed report are linked.
| Year | Tests | Pass rate | Fail rate | Most common failure |
|---|---|---|---|---|
| 2002 | 275 | 69.1% | 30.9% | Lighting & signalling |
| 2003 | 907 | 67.4% | 32.6% | Lighting & signalling |
| 2004 | 742 | 71.4% | 28.6% | Lighting & signalling |
| 2005 | 784 | 72.1% | 27.9% | Lighting & signalling |
| 2006 | 323 | 73.1% | 26.9% | Lighting & signalling |
| 2007 | 71 | 71.8% | 28.2% | Lighting & signalling |
Most common failures (all years)
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 19.3% | 619 |
| 2 | Brakes | 13.0% | 416 |
| 3 | Suspension | 12.6% | 404 |
| 4 | Body, structure & corrosion | 7.3% | 234 |
| 5 | Emissions & environmental | 6.3% | 202 |
| 6 | Tyres | 6.2% | 200 |
| 7 | Visibility | 6.1% | 197 |
| 8 | Seat belts & restraints | 4.6% | 147 |
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 | 275 |
| 2 | Headlamp | 221 |
| 3 | Coil spring | 167 |
| 4 | Stop lamp | 166 |
| 5 | Rigid brake pipes | 165 |
| 6 | Wipers | 150 |
| 7 | Rbt (sp) | 149 |
| 8 | SRS malfunction indicator lamp | 131 |
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 | 43.3% | 1,390 |
| 2 | Suspension | 31.4% | 1,009 |
| 3 | Tyres | 26.4% | 847 |
| 4 | Lighting & signalling | 24.9% | 798 |
| 5 | Body, structure & corrosion | 16.5% | 530 |
| 6 | Other defects | 12.8% | 412 |
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 | 331 | 31.1% |
| 30-60k | 813 | 25.2% |
| 60-90k | 872 | 28.7% |
| 90-120k | 458 | 30.3% |
| 120-150k | 177 | 31.6% |
| 150k+ | 138 | 28.3% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Petrol | 2,144 | 29.2% |
| Diesel | 1,064 | 29.7% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 910 | 30.9% |
| 2022 | 775 | 30.6% |
| 2023 | 627 | 28.4% |
| 2024 | 489 | 27.0% |
| 2025 | 409 | 28.4% |
What to check before buying a Mercedes-Benz Vaneo
- Lighting & signalling (19.3% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Brakes (13.0% 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 (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.
Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.
Frequently asked questions
What is the MOT pass rate for the Mercedes-Benz Vaneo?
70.6% of the 3,210 Mercedes-Benz Vaneo MOT tests in this dataset passed, a 29.4% fail rate, across model years 1997–2021.
What does the Mercedes-Benz Vaneo most often fail its MOT on?
Lighting & signalling, recorded in 19.3% of tests, then brakes (13.0%).
How much does mileage affect Vaneo MOT results?
Fail rates run at 31.1% for cars in the 0-30k band and 28.3% for 150k+, a 2.9-point difference.
Is the petrol or diesel Vaneo more reliable at MOT time?
On MOT-testable defects the petrol fails 29.2% of the time against 29.7% for the diesel. This covers testable items only, not engine or gearbox reliability.
Methodology & source. Based on 3,210 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.