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Mercedes-benz C vs Mercedes-benz Glc 220d: 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 Glc 220d
88%
MOT pass rate · 15 vehicles
Verdict: On MOT pass rate the Mercedes-benz C (78%) and Mercedes-benz Glc 220d (88%) 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 Glc 220d
MOT pass rate 78% 88% ✓
MOT failure rate 22% 12% ✓
Faults & advisories per test 1.7 0.5 ✓
Dangerous-fault share 3% 0% ✓
Average mileage 112,156 mi 50,511 mi
Sample size (vehicles) 675,043 15

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 Glc 220d

  1. Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  2. Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g))
  3. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  4. Offside Rear Tyre worn close to legal limit/worn on edge (worn on inner edge) (5.2.3 (e))
  5. Front Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i))
  6. Offside Front Lower Suspension arm ball joint has slight play Rear side (5.3.4 (a) (i))

Reliability FAQ

On MOT pass rate the Mercedes-benz C (78%) and Mercedes-benz Glc 220d (88%) 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 Glc 220d 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.