Engine sounds rough at idling - as if on two cylinders - but seems OK when above idle speed. Plugs and coils have been garage checked and declared OK. Garage suggests valve burning but says compression check shows all cylinders even - any suggestions?
If its a 16v i would still say its one or more of the coils starting to fail as a rough tickover is the classic symptom when they are on their way out - trust me i had enough experience of them when i had my Megane !
Try to find coils that are made by Beru, (i would recommend changing all 4) and always fit genuine Renault plugs.
