When you do the fuel filter make sure you pump the fuel trough with the primer bulb until the filter is full before you try starting the engine and then keep it at a fast tick over for a min or two once it starts.
I inquired to renault about their expert platinum service for cars of over 4 years. They said on my 1.5 Dci 06 model that the fuel filter will never need changing.
I was getting free services for the first 4 years of the cars life from another garage and they were ticking the service book for fuel filter change every 2 years. Can anyone explain whether this is correct or not?