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Mercedes-benz C vs Mercedes-benz S600 limousine a: 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 S600 limousine a
93%
MOT pass rate · 1 vehicles
Verdict: On MOT pass rate the Mercedes-benz C (78%) and Mercedes-benz S600 limousine a (93%) 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 S600 limousine a
MOT pass rate 78% 93% ✓
MOT failure rate 22% 7% ✓
Faults & advisories per test 1.7 0.5 ✓
Dangerous-fault share 3% 0% ✓
Average mileage 112,156 mi 81,280 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 S600 limousine a

  1. Nearside Front Lower Shock absorber has a slightly worn shock absorber pivot (2.7.4)
  2. Offside Front Lower Shock absorber has a slightly worn shock absorber pivot (2.7.4)
  3. Front brake disc slightly pitted (3.5.1h)
  4. Rear brake disc slightly pitted (3.5.1h)
  5. Offside Front Track rod end ball joint has excessive play (2.2.B.1f)

Reliability FAQ

On MOT pass rate the Mercedes-benz C (78%) and Mercedes-benz S600 limousine a (93%) 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 S600 limousine a 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.