a6 quattro brakes

I changed the front pads on this 1996 2.8l, In the process I blew the right rear brake hose. I replaced that bled the right rear brake and took it for
a test drive. The peddle was just ok and I think i have to bleed the rest of the brakes. However my problem may be not putting a 15/64 drill bit in the spring on the brake pressure regulator before bleeding as prescribed by the service manual. Where is this regulator located on the vehicle?
I also noticed alot of noise coming from the front wheels, like something is rubbing with every revolution. Would this be the fresh pads and a slightly warped rotor or?
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