Thanks for the input guys, and thanks Otto for renaming and moving the thread. I am seriously considering taking it out but finances may dictate the outcome..
It is a lot of dosh Asters but one repair would most likely cover the outlay, peace of mind
I would defo go for the Renault one if your car meets all the criteria.
Defo worth a chat with your supplying/service dealer as there is a considerable markup on extended warranty cover