That should have worked. Sometimes you don't hear it right away. Good thing you are going old school with the procedure.
https://blog.bavauto.com/13140/bmw-c...bleeder-screw/
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'11 535ix M-Sport - FMIC, CP, BM3 engine & trans, CQuartz Finest Ceramic, Poly tension bushings, Dynamic, Active Roll, Flappy paddles, HUD, Premium(s), Cold, Convenience, 5-cameras, 4-zones, Driver's Assist, Auto high, Hex trim
'92 850i, '08 XC90 3.2
Past: '93 525i w/ S38B36 M5 engine/trans swap, '99 540i/6sp Sport, etc.