Hi, my sons 10 month old Polo has an intermittent fault with the brakes. Sometimes when he's stationary at the lights with his foot on the brake, it will suddenly go to the floor. The car is now with the local VW main dealer who say they can find no fault. We are reluctant to drive the car as no parts have been changed and we feel the car is not safe to drive. I have looked throught many posts on a number of different sites about this fault condition and the component that becomes the top suspect is the Main Brake Cylinder. The garage still insist that this would have shown up in their checks and won't budge. Can anyone suggest what he does next to try and get them to take some action.
Thanks very much.
Thanks very much.