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Citroen C3 vs Citroen C4 c-series edition ptech ss a: 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 c-series edition ptech ss a
88%
MOT pass rate · 375 vehicles
More reliable
Verdict: On MOT pass rate, the Citroen C4 c-series edition ptech ss a is the more reliable of the two — 88% pass first time versus 73%. It's one signal among several; check the full breakdown below.

Head to head

Measure Citroen C3 Citroen C4 c-series edition ptech ss a
MOT pass rate 73% 88% ✓
MOT failure rate 27% 12% ✓
Faults & advisories per test 1.9 0.8 ✓
Dangerous-fault share 2% 1% ✓
Average mileage 84,223 mi 23,536 mi
Sample size (vehicles) 313,702 375

Most common faults

Citroen C3

  1. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  2. Oil leak, but not excessive (8.4.1 (a) (i))
  3. Offside Front Tyre worn close to the legal limit (4.1.E.1)
  4. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  5. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  6. Nearside Rear Tyre worn close to the legal limit (4.1.E.1)

Citroen C4 c-series edition ptech ss a

  1. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  2. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  3. Nearside Rear Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))
  4. Offside Rear Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))
  5. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  6. Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))

Reliability FAQ

On MOT pass rate, the Citroen C4 c-series edition ptech ss a is the more reliable of the two — 88% pass first time versus 73%. It's one signal among several; check the full breakdown below.

Full Citroen C3 report Full Citroen C4 c-series edition ptech ss 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.