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Mercedes-benz C vs Mercedes-benz C 230k: 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 C 230k
80%
MOT pass rate · 1 vehicles
Verdict: On MOT pass rate the Mercedes-benz C (78%) and Mercedes-benz C 230k (80%) 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 C 230k
MOT pass rate 78% 80% ✓
MOT failure rate 22% 20% ✓
Faults & advisories per test 1.7 ✓ 5.0
Dangerous-fault share 3% 0% ✓
Average mileage 112,156 mi 96,870 mi
Sample size (vehicles) 675,043 1

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 C 230k

  1. Rear Sub-frame corroded but not seriously weakened (5.3.3 (b) (i))
  2. Rear Subframe mounting prescribed area is corroded but not considered excessive (5.3.6 (a) (i))
  3. Nearside Front Wheel bearing has slight play (5.1.3 (a) (i))
  4. Front Upper Macpherson strut pin or bush worn but not resulting in excessive movement Both Sides (5.3.4 (a) (i))
  5. Rear Anti-roll bar corroded but not seriously weakened (5.3.3 (b) (i))
  6. Anti-roll bar corroded but not seriously weakened Front & Rear (5.3.3 (b) (i))

Reliability FAQ

On MOT pass rate the Mercedes-benz C (78%) and Mercedes-benz C 230k (80%) 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 C 230k 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.