had mine done not too long ago at a Renault dealer, took them a day and a half, cost me about £350. I was advised to have the pump changed, so I did, turns out that the cambelt doesn't drive the pump, it's driven by the auxiliary belt....nice. Asked them to change the auxiliary belt, because it has too come off anyway, when I eventually picked it up, they told me that they couldn't get one, so it wasn't changed, not even a phone call, so if I take it back to get it done, another 1 1/2 hours labour. What a bunch of muppets !