i have an 04 megane scenic and i have two problems, and dont know if they are related. firstly every now and then it makes a sort of crunching sound when i start it up and secondly it sometimes cuts out while im driving. can anyone help please?
Sounds like the dephaser pulley if it's a 16V petrol engine - the 1.6 is the common favourite for this very common problem. The pulley costs about £130 GBP and the cambelt will also need to be replaced - about a 4 hour job in total.