My suggestion is to replace Calipers and Brake hoses. If the caliper doesn't release the pressure fast enough (sticking) so the pads stay in contact with the rotors longer, it could cause more heat and after awhile overheat and warp the rotors. Looking the the color of your rotors the blueish red tint on them is an indication they are overheating. Also replace the brake hoses (if your car has them) that's goes to calipers. Inside the brake hose is a valve, if it gets stuck the pressure doesn't release and same effect can occur.
Last edited by coxaoxy; 03-10-2012 at 04:24 PM.