Don't be fooled into thinking you have too have your car serviced by a main dealer! There is an EU directive that allows you to take your car to an independant without affecting your Renault warranty!!
Take it too a garage you trust or has been recommended!
When I picked my new car up recently I was told I "have" to take the car to Renault, my Dad who owns an independant garage told the salesman what he was saying was against the law as it creates a monoply over small independants. The sales man soon changed his story saying that Renault "recommend" servicing at a main dealer!
I just wonder how many people they fleece with this. If it hadn't been for my Dad being there I would have believed the salesman!