2016 · 8 years old at test · Diesel mostly

2016 Mercedes-Benz B-Class MOT pass rate and common faults

5,348 MOT tests in 2024. 80.5% passed first time, compared with 76.6% for all cars the same age.

105Above average
Passed first time80.5%
Failed or needed repairs19.5%
Typical mileage at test51,000

Most common reasons for failing

Share of all 5,348 tests where this item caused a failure.

  1. Registration plate lamp(s): inoperative in the case of a single lamp or all lamps2.5%
  2. Tyres - condition: has a cut in excess of the requirements deep enough to reach the ply or cords2.4%
  3. Coil spring: fractured or broken2.2%
  4. Tyres - condition: has ply or cords exposed1.5%
    105 marked dangerous
  5. Malfunction indicator lamp: inoperative or indicates a malfunction1.5%
  6. Brake pads: less than 1.5 mm thick1.4%
    92 marked dangerous
  7. Tread depth below requirements of 1.6mm1.1%
    98 marked dangerous
  8. Linkage ball joint dust cover: ball joint dust cover no longer prevents the ingress of dirt1.0%
  9. Tyres - condition: has a bulge, caused by separation or partial failure of its structure0.7%
    55 marked dangerous
  10. Tyres - condition: has a tear, caused by separation or partial failure of its structure0.7%
    47 marked dangerous

Problem areas

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

  1. Tyres7.9%
  2. Lights & electrics6.2%
  3. Suspension4.5%
  4. Brakes3.0%
  5. Visibility (wipers, screen, mirrors)2.2%
  6. Emissions & leaks1.9%
  7. Seat belts & airbags0.6%
  8. Wheels0.4%

Most common advisories

Not failures yet, but things the tester warned about.

  1. Tread depth below requirements of 1.6mm14.0%
  2. Tyres - condition: has a tear, caused by separation or partial failure of its structure10.1%
  3. Brake pads: less than 1.5 mm thick8.7%
  4. Brake discs: in such a condition that it is seriously weakened5.9%
  5. Brake discs: significantly and obviously worn3.8%

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: registration plate lamp(s): inoperative in the case of a single lamp or all lamps. 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 2016 Mercedes-Benz B-Class?

In 2024, 80.5% of 2016 Mercedes-Benz B-Class cars passed their MOT first time, across 5,348 tests. The average for all 8-year-old cars was 76.6%.

What are the most common MOT failures on a 2016 Mercedes-Benz B-Class?

The most common failure reasons were registration plate lamp(s): inoperative in the case of a single lamp or all lamps; tyres - condition: has a cut in excess of the requirements deep enough to reach the ply or cords; coil spring: fractured or broken. The biggest problem area was tyres.

Is the 2016 Mercedes-Benz B-Class reliable at MOT time?

Its MOT Rank score is 105, which is above average for a car of its age (100 means exactly average).