2015 · 9 years old at test · Diesel mostly

2015 Mercedes-Benz Viano MOT pass rate and common faults

136 MOT tests in 2024. 73.5% passed first time, compared with 73.5% for all cars the same age.

100About average
Passed first time73.5%
Failed or needed repairs26.5%
Typical mileage at test113,000

Most common reasons for failing

Share of all 136 tests where this item caused a failure.

  1. Rbt (sp): efficiency below requirements5.1%
  2. Side repeaters: not working3.7%
  3. Brake pads: less than 1.5 mm thick2.9%
    4 marked dangerous
  4. Tread depth below requirements of 1.6mm2.9%
    6 marked dangerous
  5. Parking brake performance: inoperative on one side2.2%
  6. On or after 01/01/2014: emissions exceed manufacturer's specified limit2.2%
  7. Tyres - condition: has ply or cords exposed2.2%
    4 marked dangerous
  8. Service brake performance: excessively binding2.2%
  9. Exhaust system: system insecure2.2%
  10. Linkage pins and bushes: pin or bush excessively worn1.5%

Problem areas

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

  1. Lights & electrics15.4%
  2. Brakes14.0%
  3. Tyres5.1%
  4. Body & chassis5.1%
  5. Suspension5.1%
  6. Visibility (wipers, screen, mirrors)2.9%
  7. Emissions & leaks2.2%
  8. Steering1.5%

Most common advisories

Not failures yet, but things the tester warned about.

  1. Tread depth below requirements of 1.6mm19.1%
  2. Suspension arms - pins and bushes: pin or bush excessively worn10.3%
  3. Engine oil leaks: leaking excessively from engine5.9%
  4. Exhaust system: system insecure5.9%
  5. Non-component advisories: Play in steering rack inner joint(s)5.1%

What this means if you are buying one

This model year is about as good as an average car its age. 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 2015 Mercedes-Benz Viano?

In 2024, 73.5% of 2015 Mercedes-Benz Viano cars passed their MOT first time, across 136 tests. The average for all 9-year-old cars was 73.5%.

What are the most common MOT failures on a 2015 Mercedes-Benz Viano?

The most common failure reasons were rbt (sp): efficiency below requirements; side repeaters: not working; brake pads: less than 1.5 mm thick. The biggest problem area was lights & electrics.

Is the 2015 Mercedes-Benz Viano reliable at MOT time?

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