Citroen C4 vs Citroen Relay: MOT reliability compared
Updated 05 September 2026.
27.0%
Citroen C4 MOT failure rate, 3.9 pts lower than Citroen Relay
Citroen C4 is the more reliable MOT performer: 27.0% of Citroen C4 MOTs fail versus 30.9% for Citroen Relay, a 3.9 point gap.
| Metric | Citroen C4 | Citroen Relay |
|---|---|---|
| MOT failure rate | 27.0% | 30.9% |
| Tests analysed | 3,593,692 | 1,318,889 |
| Most common failure | Lamps & electrical (32.5%) | Lamps & electrical (42.7%) |
Questions and answers
Which is more reliable, Citroen C4 or Citroen Relay?
Citroen C4 is the more reliable MOT performer: 27.0% of Citroen C4 MOTs fail versus 30.9% for Citroen Relay, a 3.9 point gap.
What is the MOT failure rate of the Citroen C4?
27.0% of Citroen C4 MOT tests result in a failure, from 3,593,692 tests.
What is the MOT failure rate of the Citroen Relay?
30.9% of Citroen Relay MOT tests result in a failure, from 1,318,889 tests.