Miele cm 5100 Coffee

I have at my Cm 5100 the coil and also the valve exchanged because I could make no more hot water
it ran in the drip tray and milk foam does not work either.

The coil connector to my valve was cpl. tight you could get rid of the coil only with a punch. I tested the coil. It was defective. After my exchange unfortunately no success was bookable either. I have now times directly once with 230Volt the valve opened with hot water preparation and everything is good again. Now my question is the controller defective because the old coil has shot something ? Can anyone tell me how I can directly control the sink in the Kd menu with this I could then see if the output is still controlled by the board. I already knew once how to do this with small button and steam....