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Mercedes-benz C vs Mercedes-benz Glc220: 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 Glc220
83%
MOT pass rate · 6 vehicles
Verdict: On MOT pass rate the Mercedes-benz C (78%) and Mercedes-benz Glc220 (83%) 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 Glc220
MOT pass rate 78% 83% ✓
MOT failure rate 22% 17% ✓
Faults & advisories per test 1.7 ✓ 1.8
Dangerous-fault share 3% 2% ✓
Average mileage 112,156 mi 56,316 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 Glc220

  1. Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g))
  2. Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  3. Front Brake pad(s) wearing thin (1.1.13 (a) (ii))
  4. Tyre slightly damaged/cracking or perishing both rear badly perished (5.2.3 (d) (ii))
  5. Tyre worn close to legal limit/worn on edge both front edges worn (5.2.3 (e))
  6. Offside Rear Tyre worn close to legal limit/worn on edge Deteriorated (5.2.3 (e))

Reliability FAQ

On MOT pass rate the Mercedes-benz C (78%) and Mercedes-benz Glc220 (83%) 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 Glc220 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.