Just though Id give you all a bit of info.
I recently got my CUP serviced. My mate works at a parts department and has access to renault parts at cost, but even at full price they arent too much more, i get about 15% discount. Any how I got a 12,000 servicing kit from him for around £28 and went round the corner to Halfords and got myself 5.5 Litres of Magnatec - £22. Thats £50 in total...
The service was going to cost me £230 from a renault main dealer. I arranged with them that I would supply my own parts which they were more than happy with
I booked it in and at the same time I had some warrantly work carried out. btw. If anyone has a CUP and the front suspension squeaks when turning then Renault have released a modification which envloves a full refit/re-mill of the front strutts.
The total bill came to £110inc vat + my £50 of parts = £160. A bit better than the £230 from them direct.....
Hope that helps..
Mike.