The price i was quoted was from a ranault main dealer, it was roughly £325 for the service then the rest belt and labour, I think the labour for the belt was 2.1 hrswhich is why its so expensive, if you go to an independent renault specialist it will be a lot cheaper, specialist renault services in Nuneaton have quoted me around £220 for the service and belt change, me supplying oil and filter, there is no problem with warranty as they use genuine parts although mine is out of warranty now so saving £300 is a bonus.