Fan motor not working on x reg clio etoile?

Hi have a x reg clio..etoile. my fan suddenly stopped working a couple of days ago although comes back on for a few seconds every now and again. Rang the garage today and they quoted £70 just for the labour but is unsure of the motor price until i give him the chasis number.
Any one no how much about a motor costs? i really dont want to take it to the garage so if its easy will get my other half to have a look the week end.