My car is 2 years old and I'm an experienced driver I use my gears more than my brakes. My fiat [now my husbands] has never had new disks and its 8 years old. I've been told that it’s the norm on a C2 to replace them every 20,000 miles maximum!! I know its not covered on warranty and I understand there is 1mm left on the disk so its very close to the recommended minimum. I don't know when the pads wore out [no warning light] and the 2 year service 1000 miles ago passed them. [same garage] Its been noisy and the garage supposedly looked at that and said it was dirt in the brakes [again 1000 miles ago] I don't drive round Gatwick but I do know what a C4 is!