Jack car up.
Remove wheel.
Undo caliper.
Undo disc and remove.
Re-assemble in the reverse order.
Alternatively take the car to a garage and get a quote! Its say £25 for a set of discs, maybe the same again for pads, which in all honestly should be the only bit needing relpaced unless you've been running along on the steel backings of the pads for thousands of miles.
£25.... I've just been quoted £160 for pads and £144 for disks from Fiat...!?
Needforspeed.co.uk got the parts for £195 EBC pads and Black Diomond disks. ATS to fit for £23 not a bad saving
I paid £300 for mine at Fiat as didn't know any better plus didn't have no choice as there wasn't much left and needed my car.
But http://www.ebcbrakesdirect.com/ do decent and cheap pads and discs. Just need someone to fit it. I could have uprated my discs and brakes and got them cheaper than Fiat! :bang: