I have just had the front brakes changed on the car, discs and pads. All seemed fine except when they heated up and the calipers were sticking on slightly and at low speeds you could hear it squeaking. Took the car back and they stripped the brakes down and checked the calipers and they are completely free and all moving ok, they checked that there wasn't a build up of pressure in the system and that seemed fine. took it back out and all seemed fine until they heat up again and then seem to be sticking on intermittently! So took it back again to the garage and they said that the only other thing it can be is the master cylinder rod maybe sticking due to water contamination (rusted)!!! Can anybody through some light on this as I am stumped, don't want to have to get a new master cylinder fitted and then have the same issues... Anybody had similar issues??