All four brakes rotors were warped at 37k and had them replaced. now the dealership is telling me the front ones are warped again after 12k miles. car vibrates when you brake.
A few times when slowly gliding to a stop (red light or stop sign) when stepping on the brake pedal it seems to go to the floor and needs to be pumped in order to stop. it's a scary situation. i cannot make it happen. it didn't seem to happen until i had the brake fluid changed during routine maintenance at audi. i reported the problem to dealer where the work was done and they said that they redid the fluid change but the problem has re-occurred a couple of times. also, it seems that when sitting in the car with it idling i can just about press the brake pedal to the floor.