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Mercedes-benz C vs Mercedes-benz C240: reliability comparison

MOT pass rates, common faults and mileage compared from real UK MOT data.

Mercedes-benz C
78%
MOT pass rate · 675,043 vehicles
Mercedes-benz C240
76%
MOT pass rate · 6 vehicles
Verdict: On MOT pass rate the Mercedes-benz C (78%) and Mercedes-benz C240 (76%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Mercedes-benz C Mercedes-benz C240
MOT pass rate 78% ✓ 76%
MOT failure rate 22% ✓ 24%
Faults & advisories per test 1.7 ✓ 2.1
Dangerous-fault share 3% 1% ✓
Average mileage 112,156 mi 87,383 mi
Sample size (vehicles) 675,043 6

Most common faults

Mercedes-benz C

  1. Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
  2. Offside Rear Tyre worn close to the legal limit (4.1.E.1)
  3. Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  4. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  5. Under-trays fitted obscuring some underside components
  6. Nearside Front Tyre worn close to the legal limit (4.1.E.1)

Mercedes-benz C240

  1. Nearside Front Shock absorbers has slight external damage to the casing corroded (5.3.2 (b))
  2. Nearside Front Track rod end ball joint dust cover damaged or deteriorated, but preventing the ingress of dirt (2.1.3 (g) (i))
  3. Nearside Front Wheel bearing has slight play (5.1.3 (a) (i))
  4. Nearside Rear Brake pipe corroded, covered in grease or other material corroded (1.1.11 (c))
  5. Offside Front Shock absorbers has slight external damage to the casing corroded (5.3.2 (b))
  6. Offside Front Track rod end ball joint dust cover damaged or deteriorated, but preventing the ingress of dirt (2.1.3 (g) (i))

Reliability FAQ

On MOT pass rate the Mercedes-benz C (78%) and Mercedes-benz C240 (76%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Mercedes-benz C report Full Mercedes-benz C240 report Most reliable cars

Pass rates are computed over completed (pass/fail) MOT tests. Reliability also depends on age, mileage and upkeep — see each model's page for the full picture.