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Mercedes-benz 180b vs Mercedes-benz C: reliability comparison

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

Mercedes-benz 180b
71%
MOT pass rate · 2 vehicles
Mercedes-benz C
78%
MOT pass rate · 675,043 vehicles
Verdict: On MOT pass rate the Mercedes-benz 180b (71%) and Mercedes-benz C (78%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Mercedes-benz 180b Mercedes-benz C
MOT pass rate 71% 78% ✓
MOT failure rate 29% 22% ✓
Faults & advisories per test 1.3 ✓ 1.7
Dangerous-fault share 0% ✓ 3%
Average mileage 83,086 mi 112,156 mi
Sample size (vehicles) 2 675,043

Most common faults

Mercedes-benz 180b

  1. Nearside Rear Suspension arm rubber bush deteriorated but not resulting in excessive movement (2.4.G.2)
  2. Offside Rear Suspension arm rubber bush deteriorated but not resulting in excessive movement (2.4.G.2)
  3. Nearside Rear Shock absorber has negligible damping effect (2.7.5)
  4. Offside Front Subframe mounting prescribed area is excessively corroded (2.4.A.3)
  5. Offside Rear Shock absorber has negligible damping effect (2.7.5)
  6. Rear Exhaust has a major leak of exhaust gases (7.1.2)

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)

Reliability FAQ

On MOT pass rate the Mercedes-benz 180b (71%) and Mercedes-benz C (78%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Mercedes-benz 180b report Full Mercedes-benz C 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.