2014 · 10 years old at test · Diesel mostly

2014 Mercedes-Benz SLK MOT pass rate and common faults

4,764 MOT tests in 2024. 78.6% passed first time, compared with 69.9% for all cars the same age.

112Well above average
Passed first time78.6%
Failed or needed repairs21.4%
Typical mileage at test52,000

Most common reasons for failing

Share of all 4,764 tests where this item caused a failure.

  1. Coil spring: fractured or broken5.0%
  2. Tread depth below requirements of 1.6mm2.3%
    208 marked dangerous
  3. Tyres - condition: has ply or cords exposed2.2%
    164 marked dangerous
  4. Tyres - condition: has a cut in excess of the requirements deep enough to reach the ply or cords1.7%
  5. Linkage ball joint dust cover: ball joint dust cover no longer prevents the ingress of dirt1.6%
  6. Anti-lock braking system: warning lamp indicates an ABS fault1.3%
  7. Tyres - condition: has a tear, caused by separation or partial failure of its structure0.8%
    48 marked dangerous
  8. Electronic stability control: warning lamp indicates a fault0.8%
  9. Anti-roll bars - ball joint dust cover: ball joint dust cover no longer prevents the ingress of dirt0.8%
  10. Suspension arms - ball joint: ball joint excessively worn0.7%

Problem areas

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

  1. Suspension10.7%
  2. Tyres8.6%
  3. Brakes4.5%
  4. Lights & electrics3.6%
  5. Visibility (wipers, screen, mirrors)1.8%
  6. Emissions & leaks0.6%
  7. Wheels0.5%
  8. Number plates & VIN0.4%

Most common advisories

Not failures yet, but things the tester warned about.

  1. Tread depth below requirements of 1.6mm16.9%
  2. Brake discs: in such a condition that it is seriously weakened9.0%
  3. Tyres - condition: has a tear, caused by separation or partial failure of its structure6.3%
  4. Brake pads: less than 1.5 mm thick5.0%
  5. Brake discs: significantly and obviously worn3.2%

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: 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 SLK?

In 2024, 78.6% of 2014 Mercedes-Benz SLK cars passed their MOT first time, across 4,764 tests. The average for all 10-year-old cars was 69.9%.

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

The most common failure reasons were coil spring: fractured or broken; tread depth below requirements of 1.6mm; tyres - condition: has ply or cords exposed. The biggest problem area was suspension.

Is the 2014 Mercedes-Benz SLK 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).