2012 · 12 years old at test · Diesel mostly

2012 Mercedes-Benz Viano MOT pass rate and common faults

567 MOT tests in 2024. 68.1% passed first time, compared with 64.3% for all cars the same age.

106Above average
Passed first time68.1%
Failed or needed repairs31.9%
Typical mileage at test139,000

Most common reasons for failing

Share of all 567 tests where this item caused a failure.

  1. Rbt (sp): efficiency below requirements5.5%
  2. Side repeaters: not working4.6%
  3. Rbt (sp): efficiency less than 50% of the required value3.4%
    20 marked dangerous
  4. SRS malfunction indicator lamp: warning lamp indicates a fault3.0%
  5. Parking brake performance: inoperative on one side2.8%
  6. Malfunction indicator lamp: inoperative or indicates a malfunction2.5%
  7. Position lamp: not working2.3%
  8. Tyres - condition: has ply or cords exposed1.9%
    19 marked dangerous
  9. Tyres - condition: has a cut in excess of the requirements deep enough to reach the ply or cords1.9%
  10. Coil spring: fractured or broken1.9%

Problem areas

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

  1. Lights & electrics22.0%
  2. Brakes20.5%
  3. Suspension9.2%
  4. Tyres6.5%
  5. Emissions & leaks4.9%
  6. Visibility (wipers, screen, mirrors)4.8%
  7. Seat belts & airbags4.1%
  8. Body & chassis3.5%

Most common advisories

Not failures yet, but things the tester warned about.

  1. Tread depth below requirements of 1.6mm20.1%
  2. Engine oil leaks: leaking excessively from engine9.7%
  3. Brake discs: in such a condition that it is seriously weakened8.5%
  4. Suspension arms - pins and bushes: pin or bush excessively worn7.6%
  5. Individual direction indicators: incorrect colour6.3%

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.

← 2011 VianoAll Viano years2013 Viano →

Questions

What is the MOT pass rate for a 2012 Mercedes-Benz Viano?

In 2024, 68.1% of 2012 Mercedes-Benz Viano cars passed their MOT first time, across 567 tests. The average for all 12-year-old cars was 64.3%.

What are the most common MOT failures on a 2012 Mercedes-Benz Viano?

The most common failure reasons were rbt (sp): efficiency below requirements; side repeaters: not working; rbt (sp): efficiency less than 50% of the required value. The biggest problem area was lights & electrics.

Is the 2012 Mercedes-Benz Viano reliable at MOT time?

Its MOT Rank score is 106, which is above average for a car of its age (100 means exactly average).