Right so ive got these exact brakes Now recently when i come to a sharp stop from say 70mph they really drone and its asif they are fading out, not what id expect from these brakes anyway. The disks are good and the pads have plenty left. Also now and then if i am crawling in traffic in 1st gear the passenger side one you can hear making a noise asif the pads are gripping the disk, its a strange sound. Now i dont no how old the brakes are as they come on the car. So are they needed a service or what? Also how much are new disks and pads for these brakes?