Just replaced all pads and rotors on my 01 A4 Quattro. Drivers front rotor is junk will not compress. Ran out and got a replacement, my question is can I just bleed just that one or should I do all four corners. I`am just a little worried about the abs and messing it up. Looked at a few youtube vids but not any info about just doing one. Thanks for any help.

 

Definitely do all four corners. Once you've introduced air into the system, there's no telling where it's gone. This is also why you want to start with the caliper farthest away from the master cylinder and work your way in, because doing it any other way introduces air that you chase around.

 

+1
It's too easy and too important not to do.

 

zzzzz

 

Easier than repairing the damage done by slamming into the back of another vehicle, but it's your ****. Do what you want. Don't ask for advice if you don't actually want it though. You'll find that people are going to be less likely to help you if you're going to be a smart *** and mock them. No one on here is required to help you with anything. You'd be wise to remember that. "zzzzzz"

G/L

 

I replaced a rear caliper on my B5 years ago, and as I recall, I plugged the line quickly once disconnected at the caliper. If you don't let much fluid drain out of the line, then air can not move up the line. Thus, you should be ok with bleeding only the new caliper. It worked for me. If you ever find a puddle of brake fluid on the ground, then you have lost most of the fluid and will certainly need 4 wheel bleeding.

As for calipers that will not compress, I've never had a problem since I started borrowing the twist and compress tool from Advance each time I did the rear pads. I"ve never had a front caliper that would not compress with just a C clamp, and I've been fighting with my audis for 10 years (2000 A4 and 2004 A4). I guess I can look forward to that happening.