2014 · 10 years old at test · Diesel mostly

2014 Mercedes-Benz CLS MOT pass rate and common faults

1,699 MOT tests in 2024. 76.1% passed first time, compared with 69.9% for all cars the same age.

109Well above average
Passed first time76.1%
Failed or needed repairs23.9%
Typical mileage at test83,000

Most common reasons for failing

Share of all 1,699 tests where this item caused a failure.

  1. Coil spring: fractured or broken4.6%
  2. Tyres - condition: has ply or cords exposed3.6%
    78 marked dangerous
  3. Rigid brake pipes: excessively corroded2.4%
  4. Tyres - condition: has a cut in excess of the requirements deep enough to reach the ply or cords2.4%
  5. Tread depth below requirements of 1.6mm2.2%
    70 marked dangerous
  6. Tyres - condition: has a bulge, caused by separation or partial failure of its structure1.5%
    38 marked dangerous
  7. Linkage ball joint dust cover: ball joint dust cover no longer prevents the ingress of dirt1.2%
  8. Road Wheels - condition: fractured1.2%
    26 marked dangerous
  9. Rbt (sp): efficiency below requirements1.2%
  10. Tyres - condition: has a tear, caused by separation or partial failure of its structure1.1%
    32 marked dangerous

Problem areas

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

  1. Tyres12.2%
  2. Suspension7.9%
  3. Brakes7.9%
  4. Lights & electrics3.7%
  5. Emissions & leaks2.2%
  6. Wheels2.0%
  7. Visibility (wipers, screen, mirrors)0.9%
  8. Body & chassis0.6%

Most common advisories

Not failures yet, but things the tester warned about.

  1. Rigid brake pipes: excessively corroded19.2%
  2. Tread depth below requirements of 1.6mm17.3%
  3. Brake discs: in such a condition that it is seriously weakened8.1%
  4. Brake pads: less than 1.5 mm thick7.9%
  5. Wheel bearings: has excessive play4.6%

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: coil spring: fractured or broken. 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 CLS?

In 2024, 76.1% of 2014 Mercedes-Benz CLS cars passed their MOT first time, across 1,699 tests. The average for all 10-year-old cars was 69.9%.

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

The most common failure reasons were coil spring: fractured or broken; tyres - condition: has ply or cords exposed; rigid brake pipes: excessively corroded. The biggest problem area was tyres.

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

Its MOT Rank score is 109, which is well above average for a car of its age (100 means exactly average).