@fcwilt Oh my god.. I am the biggest idiot the last days here.. my god.. i feel really bad now 
It was my false wiring.. i plugged the endstops to E0 and Z insted auf E1 and Z.. i am so sorry that i wasted your time. If you ever come to austria/vienna i will spend for some beer..
So now I can use homez.g and homeall.g to home both z steppers. And G29 to create a heightmap with the bltouch. I made a makro with G30 in the center of the bed to probe the center if i had do measure the z offset for the bltouch.. Soo now i am heating up my bed, will use homez.g get the z=0, then I will level manuelly with the screews and create a heightmap with bltouch to get it perfect 