2008 · 16 years old at test · Diesel mostly

2008 Mercedes-Benz Viano MOT pass rate and common faults

475 MOT tests in 2024. 64.0% passed first time, compared with 56.9% for all cars the same age.

112Well above average
Passed first time64.0%
Failed or needed repairs36.0%
Typical mileage at test146,000

Most common reasons for failing

Share of all 475 tests where this item caused a failure.

  1. Rbt (sp): efficiency below requirements5.3%
  2. Malfunction indicator lamp: inoperative or indicates a malfunction4.4%
  3. SRS malfunction indicator lamp: warning lamp indicates a fault3.6%
  4. Position lamp: not working3.6%
  5. Tread depth below requirements of 1.6mm2.9%
    26 marked dangerous
  6. Rbt (sp): efficiency less than 50% of the required value2.9%
    16 marked dangerous
  7. Stop lamp: not working2.9%
  8. Rigid brake pipes: excessively corroded2.9%
  9. Headlamp aim: projected beam image is obviously incorrect2.5%
  10. Washers: not working2.3%

Problem areas

Failure items found per 100 tests, by part of the car.

  1. Lights & electrics27.4%
  2. Brakes23.8%
  3. Suspension14.7%
  4. Body & chassis9.3%
  5. Emissions & leaks8.6%
  6. Visibility (wipers, screen, mirrors)7.2%
  7. Tyres6.9%
  8. Seat belts & airbags5.5%

Most common advisories

Not failures yet, but things the tester warned about.

  1. Tread depth below requirements of 1.6mm18.3%
  2. Engine oil leaks: leaking excessively from engine14.9%
  3. Rigid brake pipes: excessively corroded13.5%
  4. Brake discs: in such a condition that it is seriously weakened9.9%
  5. Linkage pins and bushes: pin or bush excessively worn5.7%

What this means if you are buying one

This model year does better than most cars its age, so it is a reasonable used buy on MOT record alone. Before buying, check the area that fails most: rbt (sp): efficiency below requirements. Then look up the car's own MOT history on GOV.UK with its number plate, and look for repeat advisories.

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Questions

What is the MOT pass rate for a 2008 Mercedes-Benz Viano?

In 2024, 64.0% of 2008 Mercedes-Benz Viano cars passed their MOT first time, across 475 tests. The average for all 16-year-old cars was 56.9%.

What are the most common MOT failures on a 2008 Mercedes-Benz Viano?

The most common failure reasons were rbt (sp): efficiency below requirements; malfunction indicator lamp: inoperative or indicates a malfunction; srs malfunction indicator lamp: warning lamp indicates a fault. The biggest problem area was lights & electrics.

Is the 2008 Mercedes-Benz Viano reliable at MOT time?

Its MOT Rank score is 112, which is well above average for a car of its age (100 means exactly average).