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Common problems by part

Mercedes-Benz CLC body and structure problems

DVSA MOT tests 2022–2025 · 9,253 MOT tests · Updated

At 14 years, 2.2 in 100 MOT tests of the Mercedes-Benz CLC failed on body and structure, against 5.9 for all class 4 vehicles the same age (all test years; 9,253 MOT tests) [1].

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  • Against all class 4 vehicles the same age: fails less often than all class 4 vehicles the same age (0.3–0.4×) (all test years), 201 MOT tests with a fail
  • By age: seen at 6 ages from 12 to 17 years, 35,024 MOT tests
  • MOT tests at 14 years: 9,253 for the Mercedes-Benz CLC

Figures are for the model as a whole, not for one car.

What the MOT tests show

What we know

2.2 fails per 100 MOT tests at 14 years, against 5.9 for all class 4 vehicles tested at 14 (all test years). The Mercedes-Benz CLC fails less often here.

Why it matters

A body and structure fail stops the car passing until it is fixed.

What to check

Look under the sills, jacking points and rear subframe for rot, bubbling or fresh underseal over a repair, and check every door, bonnet and boot shuts properly.

Mercedes-Benz CLC body and structure fails by age

Mercedes-Benz CLC body and structure fails per 100 MOT tests by ageSolid line: the Mercedes-Benz CLC. Dashed line: all cars the same age. The table below lists every value.0512 years: 2.1 per 100 (all cars 4.3), 3,326 MOT tests1213 years: 2.2 per 100 (all cars 5.0), 6,972 MOT tests1314 years: 2.2 per 100 (all cars 5.9), 9,253 MOT tests1415 years: 2.8 per 100 (all cars 6.7), 8,164 MOT tests1516 years: 2.4 per 100 (all cars 7.6), 5,270 MOT tests1617 years: 2.5 per 100 (all cars 8.3), 2,039 MOT tests17
Fails per 100 MOT tests by age, all first-use years pooled. Mercedes-Benz CLC All class 4 vehicles the same age
AgeMOT testsFails per 100All class 4 vehicles the same age
123,3262.14.3
136,9722.25.0
149,2532.25.9
158,1642.86.7
165,2702.47.6
172,0392.58.3

All first-use years of the Mercedes-Benz CLC pooled at each age, against all class 4 vehicles at that age over all 2022–2025 test years.

What fails in the body and structure at 14 years

Advisories (not fails)

Re-secure exhaust (hanger or clamp) cost

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  • Model risks for this year and fuel
  • What similar cars did at their next MOT
  • Repairs ahead
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How to check on a test drive

Look under the sills, jacking points and rear subframe for rot, bubbling or fresh underseal over a repair, and check every door, bonnet and boot shuts properly.

The most common advisory here in MOT records: Exhaust system: mounting defective.

Check one Mercedes-Benz CLC, not the average

The figures here describe Mercedes-Benz CLC cars as a group. These free tools answer for one car. Each line says what the tool reads.

Other Mercedes-Benz CLC problems

Body and structure on rival models

Questions people ask

Does the Mercedes-Benz CLC have more body and structure problems than other cars?

0.3 to 0.4 times the body and structure fail rate of all class 4 vehicles the same age at 14 years (all test years), from 9,253 MOT tests. The interval is clear of 0.8 in the same direction at 4 of the 6 ages seen (ages up to 18 with at least 100 MOT tests with a fail).

How common are Mercedes-Benz CLC body and structure problems?

2.2 in 100 MOT tests at 14 years failed on body and structure, against 5.9 for all class 4 vehicles the same age (all test years; 9,253 MOT tests).

Sources

  1. Driver and Vehicle Standards Agency, Anonymised MOT tests and results, 2022 to 2025. DVSA MOT data, Open Government Licence v3.0, 35,024 MOT tests. Accessed 7 Oct 2026.

Parts: against all class 4 vehicles at the same age, all 2022–2025 test years pooled, not adjusted for mileage. Breakdowns and non-MOT faults are not in this data. How we compare