ihaveanaudilikeyou

I was sliding down an icy hill and pushed too hard on my brakes and the pedal just gave way. Now, I did not notice liquids anywhere and my reservoir still has fluid in it. Does it sound like it is my brake lines or my brake master cylinder?

B5Davem

If no fluid leaks ,sounds like master cylinder is worn out. Fluid bypassing the cups/seals inside

77'911

<center><img src="http://samstagsales.com/images/vw_matra_t10006a.jpg"></center><p>I'm with B5Davem on this(master cyl. replacement) except I'd be inclined to replace the booster as well. Usually if the brake fluid has gone into the booster it has a tendency to ruin the seals. If your DIYing the job, you'll need Audi tool#t10006a(see pic).
Just be sure all hydralic brake hoses have been completely inspected for cracks, bubbles, or splits.

Kris Hansen

Check the brake hoses at the wheels.. I've had 2 blow out on my A4 with advanced age.

ihaveanaudilikeyou

Thats what it was, THANKS!!