Citroen C3 vs Citroen C4 sx hdi: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Citroen C3
73%
MOT pass rate · 313,702 vehicles
Citroen C4 sx hdi
76%
MOT pass rate · 428 vehicles
More reliable
Verdict: On MOT pass rate, the Citroen C4 sx hdi is the more reliable of the two — 76% pass first time versus 73%. It's one signal among several; check the full breakdown below.
Head to head
| Measure | Citroen C3 | Citroen C4 sx hdi |
|---|---|---|
| MOT pass rate | 73% | 76% ✓ |
| MOT failure rate | 27% | 24% ✓ |
| Faults & advisories per test | 1.9 | 0.0 ✓ |
| Dangerous-fault share | 2% | — ✓ |
| Average mileage | 84,223 mi | 162,488 mi |
| Sample size (vehicles) | 313,702 | 428 |
Most common faults
Citroen C3
- Nearside Front Tyre worn close to the legal limit (4.1.E.1)
- Oil leak, but not excessive (8.4.1 (a) (i))
- Offside Front Tyre worn close to the legal limit (4.1.E.1)
- Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
Citroen C4 sx hdi
No fault breakdown available.
Reliability FAQ
On MOT pass rate, the Citroen C4 sx hdi is the more reliable of the two — 76% pass first time versus 73%. It's one signal among several; check the full breakdown below.
Full Citroen C3 report Full Citroen C4 sx hdi 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.