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Mercedes-benz C vs Mercedes-benz C3000: 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 C3000
43%
MOT pass rate · 1 vehicles
Verdict: On MOT pass rate the Mercedes-benz C (78%) and Mercedes-benz C3000 (43%) 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 C3000
MOT pass rate 78% ✓ 43%
MOT failure rate 22% ✓ 57%
Faults & advisories per test 1.7 ✓ 4.4
Dangerous-fault share 3% 0% ✓
Average mileage 112,156 mi 108,079 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 C3000

  1. Driver's view Items removed from driver's view prior to test Garmin navi (3.1 (a) (ii))
  2. Offside Headlamp damaged
  3. Tyre warning light is on
  4. Nearside Headlamp aim projected beam image is obviously incorrect Kick up on wrong side (4.1.2 (c))
  5. Nearside Headlamp aim too low (4.1.2 (a))
  6. Nearside Registration plate lamp inoperative in the case of multiple lamps or light sources (4.7.1 (b) (i))

Reliability FAQ

On MOT pass rate the Mercedes-benz C (78%) and Mercedes-benz C3000 (43%) 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 C3000 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.