2014 · 10 years old at test · Diesel mostly

2014 Mercedes-Benz GL MOT pass rate and common faults

522 MOT tests in 2024. 83.3% passed first time, compared with 69.9% for all cars the same age.

119Well above average
Passed first time83.3%
Failed or needed repairs16.7%
Typical mileage at test87,000

Most common reasons for failing

Share of all 522 tests where this item caused a failure.

  1. Malfunction indicator lamp: inoperative or indicates a malfunction3.6%
  2. Tread depth below requirements of 1.6mm2.3%
    16 marked dangerous
  3. Tyres - condition: has ply or cords exposed2.1%
    14 marked dangerous
  4. Stop lamp: not working2.1%
  5. Tyres - condition: has a cut in excess of the requirements deep enough to reach the ply or cords1.7%
  6. Headlamp aim: too high1.5%
  7. Joints: constant velocity boot split or insecure, no longer prevents the ingress of dirt1.3%
  8. Brake pads: less than 1.5 mm thick1.1%
    8 marked dangerous
  9. Road Wheels - attachment: fixing missing0.6%

Problem areas

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

  1. Tyres8.0%
  2. Lights & electrics6.7%
  3. Emissions & leaks4.2%
  4. Brakes2.5%
  5. Body & chassis1.9%
  6. Visibility (wipers, screen, mirrors)1.7%
  7. Seat belts & airbags1.0%
  8. Suspension1.0%

Most common advisories

Not failures yet, but things the tester warned about.

  1. Tread depth below requirements of 1.6mm15.7%
  2. Brake discs: in such a condition that it is seriously weakened6.9%
  3. Brake pads: less than 1.5 mm thick6.7%
  4. Brake discs: significantly and obviously worn4.2%
  5. Tread depth: tread pattern not visible over the whole tread area when minimum depth required is 1.0mm4.0%

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: malfunction indicator lamp: inoperative or indicates a malfunction. 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 2014 Mercedes-Benz GL?

In 2024, 83.3% of 2014 Mercedes-Benz GL cars passed their MOT first time, across 522 tests. The average for all 10-year-old cars was 69.9%.

What are the most common MOT failures on a 2014 Mercedes-Benz GL?

The most common failure reasons were malfunction indicator lamp: inoperative or indicates a malfunction; tread depth below requirements of 1.6mm; tyres - condition: has ply or cords exposed. The biggest problem area was tyres.

Is the 2014 Mercedes-Benz GL reliable at MOT time?

Its MOT Rank score is 119, which is well above average for a car of its age (100 means exactly average).