2012 Mercedes-Benz Viano MOT pass rate: 73.3% (1,692 tests)
Is the 2012 Viano getting worse?
Pass rate of 2012-registered cars across recent test years:
| Test year | Pass rate | |
|---|---|---|
| 2023 | 74.5% +2.2 vs same-age |
|
| 2024 | 72.0% +1.0 vs same-age |
|
| 2025 | 73.3% +3.0 vs same-age |
The raw rate normally falls as cars age. The “vs same-age” figure compares this cohort with all UK cars registered in the same year, so normal ageing is not mistaken for a bad model year.
What fails on a 2012 Viano
| # | System | Defects recorded | Share |
|---|---|---|---|
| 1 | Lamps, reflectors and electrical equipment | 352 | 26.2% |
| 2 | Brakes | 330 | 24.5% |
| 3 | Suspension | 203 | 15.1% |
| 4 | Tyres | 132 | 9.8% |
| 5 | Noise, emissions and leaks | 77 | 5.7% |
| 6 | Body, chassis, structure | 68 | 5.1% |
All Viano years compared
| Registration year | Tests | Pass rate | Vs same-age | Median mileage |
|---|---|---|---|---|
| 2012 (this page) | 1,692 | 73.3% | +2.1 pts | 138,892 |
| 2013 | 1,959 | 73.3% | -0.1 pts | 127,650 |
| 2014 | 1,943 | 75.2% | -0.6 pts | 124,905 |
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FAQs
Is a 2012 Mercedes-Benz Viano reliable?
2012-registered examples passed 73.3% of their MOT tests (1,692 tests, 2023–2025), +2.1 points versus all UK cars registered in the same year. At roughly 14 years old with a median 138,892 miles, condition now varies car by car — always check the individual MOT history.
What mileage is too high for a 2012 Viano?
The median tested example shows 138,892 miles. Anything far beyond that isn't automatically bad — a motorway-mile car with consistent service records often beats a low-mileage school-run car — but price accordingly and scrutinise the mileage trail for gaps or drops.
Source: DVSA Anonymised MOT tests and results, 2023–2025 extracts (96 million Class 4 initial tests; retests excluded). Only vehicles old enough for a routine first MOT are included. Age-adjusted figures compare the model-year cohort with all vehicles of the same registration year tested in the same calendar year. Contains public sector information licensed under OGL v3.0.