The other day I decided to change my rear brake pads and attempted to do the whole bleeding thing with the help of a friend and a mighty vac....I watched several "how to" videos on youtube, read through the forum, and even the mighty vac had instructions on how to bleed brakes....long story short, I now depress my brake pedal and nothing happens, the car won't stop until the pedal is all the way to the floor! Me and my friend investigated everything, we rebled the system, and still a no go. Here are a few things that may help you all to help me:

1) Both rear calipers were depressed in order to put the pads on; They were still depressed when I rechecked everything. I'm guessing they are the oigninals.

2) Reservoir was drained and master cylinder was taken off for inspection. There are two ports with grommets in them, the port closet to the firewall was filled with DOT 4 fluid and so was the other port, but the one closet to the firewall did not expell the brake fluid like the other one after I blew in it.

3) When rebleeding the system, there was little to no fluid coming out of the rear driver side bleeder, even with a full reservoir and me applying pressure.

PLEASE HELP. Thanks.

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1990 190E 3.0L