Ccm 604 vs Ccm R: MOT reliability compared
Updated 05 September 2026.
14.8%
Ccm R MOT failure rate, 3.4 pts lower than Ccm 604
Ccm R is the more reliable MOT performer: 14.8% of Ccm R MOTs fail versus 18.2% for Ccm 604, a 3.4 point gap.
| Metric | Ccm 604 | Ccm R |
|---|---|---|
| MOT failure rate | 18.2% | 14.8% |
| Tests analysed | 8,100 | 5,684 |
| Most common failure | Lamps & electrical (33.3%) | Lamps & electrical (27.2%) |
Questions and answers
Which is more reliable, Ccm 604 or Ccm R?
Ccm R is the more reliable MOT performer: 14.8% of Ccm R MOTs fail versus 18.2% for Ccm 604, a 3.4 point gap.
What is the MOT failure rate of the Ccm 604?
18.2% of Ccm 604 MOT tests result in a failure, from 8,100 tests.
What is the MOT failure rate of the Ccm R?
14.8% of Ccm R MOT tests result in a failure, from 5,684 tests.