The best way to bleed brakes is with a second person on the pedal. Vacuum won't do it and pressure bleeders are a cheat for when you need to do it alone. You need to get enough flow to force air out of the high spots (like the front brake lines where they go into the hoses.) The scan tool procedure is only to get the last bit of air out that might be trapped in or in front of the ABS valve/pump. When changing the master cylinder it's a good idea to start bleeding there. Sometimes the last bit of air will slowly come out of the compensating port overnight.

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1988 325is (purchased new) sold
2004 X5 3.0 2005 X3 2.5
2008 X5 3.0 (new to me)