The knock limit cylinder 4 was exceeded
#1
The knock limit cylinder 4 was exceeded
Hi , i have mb C 63 W205 , yesterday when i drive fast and downshifting its became cuttings and i fixed by computer its show knock limit cylinder 1 & 4 was exceeded and i fixed again today it show knock cylinder 4 was exceeded only and when i drive it today its come back normally and by the way may car is in stage 2 , with downpipe and tunning ECU