Skip to content

Citroen C3 vs Citroen Zx: reliability comparison

MOT pass rates, common faults and mileage compared from real UK MOT data.

Citroen C3
73%
MOT pass rate · 313,702 vehicles
More reliable
Citroen Zx
63%
MOT pass rate · 82,347 vehicles
Verdict: On MOT pass rate, the Citroen C3 is the more reliable of the two — 73% pass first time versus 63%. It's one signal among several; check the full breakdown below.

Head to head

Measure Citroen C3 Citroen Zx
MOT pass rate 73% ✓ 63%
MOT failure rate 27% ✓ 37%
Faults & advisories per test 1.9 ✓ 2.2
Dangerous-fault share 2% 0% ✓
Average mileage 84,223 mi 123,333 mi
Sample size (vehicles) 313,702 82,347

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 Zx

  1. Parking brake: efficiency below requirements (3.7.B.7)
  2. Oil leak
  3. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  4. Offside Front Tyre worn close to the legal limit (4.1.E.1)
  5. Brakes imbalanced across an axle (3.7.B.5b)
  6. Parking brake lever has no reserve travel (3.1.6b)

Reliability FAQ

On MOT pass rate, the Citroen C3 is the more reliable of the two — 73% pass first time versus 63%. It's one signal among several; check the full breakdown below.

Full Citroen C3 report Full Citroen Zx 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.