Hi yall. My '02 audi a4 b6 brake pedals are rock hard causing vehicle not to stop when I want it to. Anyone have this problem? Recently changed the brake master cylinder and brake pads. Could it be the brake booster..? Please help.
Sorted. It was the vacuum pipes. Replaced them and brakes now back to normal. Thanks guys.
I'll send you pics in a bit.Mine has just started to do this, how many pipes are there ? Or is it just the one from the pump to the servo that needs changing.
I'll send you pics in a bit.
Mine has just started to do this, how many pipes are there ? Or is it just the one from the pump to the servo that needs changing.