Mercedes-benz 2551ls vs Mercedes-benz C: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Mercedes-benz 2551ls
69%
MOT pass rate · 2 vehicles
Mercedes-benz C
78%
MOT pass rate · 675,043 vehicles
Verdict: On MOT pass rate the Mercedes-benz 2551ls (69%) 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 2551ls | Mercedes-benz C |
|---|---|---|
| MOT pass rate | 69% | 78% ✓ |
| MOT failure rate | 31% | 22% ✓ |
| Faults & advisories per test | 0.0 ✓ | 1.7 |
| Dangerous-fault share | — ✓ | 3% |
| Average mileage | 465,205 mi | 112,156 mi |
| Sample size (vehicles) | 2 | 675,043 |
Most common faults
Mercedes-benz 2551ls
No fault breakdown available.
Mercedes-benz C
- Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
- Offside Rear Tyre worn close to the legal limit (4.1.E.1)
- Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Under-trays fitted obscuring some underside components
- Nearside Front Tyre worn close to the legal limit (4.1.E.1)
Reliability FAQ
On MOT pass rate the Mercedes-benz 2551ls (69%) 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 2551ls 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.