2018 · 6 years old at test · Petrol mostly

2018 Mercedes-Benz G-Class MOT pass rate and common faults

274 MOT tests in 2024. 88.3% passed first time, compared with 82.5% for all cars the same age.

107Above average
Passed first time88.3%
Failed or needed repairs11.7%
Typical mileage at test38,000

Most common reasons for failing

Share of all 274 tests where this item caused a failure.

  1. Tyres - condition: has a cut in excess of the requirements deep enough to reach the ply or cords2.9%
  2. Coil spring: fractured or broken1.1%
  3. Wipers: does not clear the windscreen effectively0.7%
  4. Tyres - condition: has a bulge, caused by separation or partial failure of its structure0.7%
    6 marked dangerous
  5. Registration plates: does not conform to the specified requirements0.7%
  6. Tread depth below requirements of 1.6mm0.7%
    3 marked dangerous
  7. Tyres - condition: has ply or cords exposed0.7%
    2 marked dangerous
  8. Individual direction indicators: not working0.4%
  9. Linkage ball joint dust cover: ball joint dust cover no longer prevents the ingress of dirt0.4%
  10. Drag link end: ball joint has excessive play0.4%

Problem areas

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

  1. Tyres5.8%
  2. Lights & electrics4.0%
  3. Suspension2.6%
  4. Visibility (wipers, screen, mirrors)1.8%
  5. Brakes1.5%
  6. Number plates & VIN0.7%
  7. Steering0.4%
  8. Body & chassis0.4%

Most common advisories

Not failures yet, but things the tester warned about.

  1. Tread depth below requirements of 1.6mm7.3%
  2. Brake pads: less than 1.5 mm thick3.3%
  3. Tyres - condition: has a tear, caused by separation or partial failure of its structure2.6%
  4. Tyres - condition: has a cut in excess of the requirements deep enough to reach the ply or cords2.2%
  5. Brake discs: in such a condition that it is seriously weakened2.2%

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: tyres - condition: has a cut in excess of the requirements deep enough to reach the ply or cords. 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 2018 Mercedes-Benz G-Class?

In 2024, 88.3% of 2018 Mercedes-Benz G-Class cars passed their MOT first time, across 274 tests. The average for all 6-year-old cars was 82.5%.

What are the most common MOT failures on a 2018 Mercedes-Benz G-Class?

The most common failure reasons were tyres - condition: has a cut in excess of the requirements deep enough to reach the ply or cords; coil spring: fractured or broken; wipers: does not clear the windscreen effectively. The biggest problem area was tyres.

Is the 2018 Mercedes-Benz G-Class reliable at MOT time?

Its MOT Rank score is 107, which is above average for a car of its age (100 means exactly average).