a got my brakes checked when I got my new car on sat clio cup 172 (non abs) a got them checked if a left my car over night and then drove it the following day my brakes sounded worn/rusted and made a grinding noise, the guy at the garage said the brakes are perfect almost brand new but I asked him to replace them anyway with new pads and discs and am still getting this same noise, any suggestions what it might be and how to stop it?