2015 · 9 years old at test · Diesel mostly

2015 Mercedes-Benz GLC MOT pass rate and common faults

1,296 MOT tests in 2024. 82.3% passed first time, compared with 73.5% for all cars the same age.

112Well above average
Passed first time82.3%
Failed or needed repairs17.8%
Typical mileage at test74,000

Most common reasons for failing

Share of all 1,296 tests where this item caused a failure.

  1. Suspension arms - ball joint: ball joint excessively worn5.2%
  2. Coil spring: fractured or broken2.2%
  3. Tread depth below requirements of 1.6mm2.1%
    44 marked dangerous
  4. Malfunction indicator lamp: inoperative or indicates a malfunction2.0%
  5. Brake pads: less than 1.5 mm thick1.5%
    29 marked dangerous
  6. Tyres - condition: has ply or cords exposed1.2%
    18 marked dangerous
  7. Tyres - condition: has a cut in excess of the requirements deep enough to reach the ply or cords1.2%
  8. Joints: constant velocity boot split or insecure, no longer prevents the ingress of dirt0.8%
  9. Suspension arms - ball joint dust cover: ball joint dust cover no longer prevents the ingress of dirt0.7%
  10. Brake pads: worn down to wear indicator0.7%

Problem areas

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

  1. Suspension8.7%
  2. Tyres5.6%
  3. Brakes3.3%
  4. Emissions & leaks2.4%
  5. Lights & electrics1.9%
  6. Body & chassis1.5%
  7. Visibility (wipers, screen, mirrors)1.3%
  8. Wheels0.3%

Most common advisories

Not failures yet, but things the tester warned about.

  1. Tread depth below requirements of 1.6mm17.7%
  2. Brake pads: less than 1.5 mm thick9.6%
  3. Suspension arms - ball joint: ball joint excessively worn8.5%
  4. Brake discs: in such a condition that it is seriously weakened6.2%
  5. Brake discs: significantly and obviously worn5.2%

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: suspension arms - ball joint: ball joint excessively worn. Then look up the car's own MOT history on GOV.UK with its number plate, and look for repeat advisories.

All GLC years2016 GLC →

Questions

What is the MOT pass rate for a 2015 Mercedes-Benz GLC?

In 2024, 82.3% of 2015 Mercedes-Benz GLC cars passed their MOT first time, across 1,296 tests. The average for all 9-year-old cars was 73.5%.

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

The most common failure reasons were suspension arms - ball joint: ball joint excessively worn; coil spring: fractured or broken; tread depth below requirements of 1.6mm. The biggest problem area was suspension.

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

Its MOT Rank score is 112, which is well above average for a car of its age (100 means exactly average).