it's quite strange thing to post on this versa forum but i have no where to turn to..since im a member of this club i'm gonna taking this eligibility to do this. hope you understand. it just happened that I have an Audi A4 (2003.only then, it had a problem while i was driving. Suddenly the brake pedal became very hard to press. what an annoying issue. any body has the idea about this. it's a dangerous and life threatening problem that needs to be fixed...Just tell me when i need to look for Audi parts and replace the old one... thanks in advance...