2006 Mercedes-Benz Viano: common problems and what to check
What gets flagged at MOT on 2006 Mercedes-Benz Vianos, from 351 tests in 2025, plus known faults and what to look at before you buy one.
Small sample: only 351 of these were MOT tested in 2025, so treat the percentages as rough. The known faults below don't depend on it.
What gets flagged at MOT
The share of 2006 Mercedes-Benz Viano MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.
- Brakes38% of testsRough price £150–£350
At the viewing: Look for a lip on the disc edges and feel for judder or pulling when braking firmly from about 40mph.
- Suspension36% of testsRough price £120–£400
At the viewing: Listen for knocks over speed bumps, and look behind each front wheel for a snapped coil spring.
- Lights and electrics35% of testsRough price £10–£80
At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.
- Tyres26% of testsRough price £70–£150
At the viewing: Check the tread on all four tyres, including the inside edges, and look for cracks or bulges.
- Rust and bodywork14% of testsRough price £150–£1,000
At the viewing: Check the sills, wheel arches and underneath for rust, and look along the panels for uneven gaps or paint.
- Wipers, windscreen and mirrors11% of testsRough price £15–£250
At the viewing: Check for chips in the driver's view, and test the wipers and washers.
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Other years
| Year | MOT tests | Most flagged |
|---|---|---|
| 2015 | 129 | Tyres 28% |
| 2014 | 622 | Brakes 31% |
| 2013 | 627 | Brakes 27% |
| 2012 | 553 | Tyres 29% |
| 2011 | 454 | Brakes 33% |
| 2010 | 415 | Lights and electrics 36% |
| 2009 | 422 | Brakes 42% |
| 2008 | 453 | Lights and electrics 35% |
| 2007 | 412 | Brakes 39% |
| 2005 | 347 | Brakes 46% |
| 2004 | 244 | Lights and electrics 43% |
Where this comes from: the DVSA's anonymised results for every MOT test in Great Britain in 2025, counting tests of 2006 Mercedes-Benz Vianos registered in 2006. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score