Dishwasher door, too much spring

Question

I have a new Miele dishwasher, advanta series.  There is way too much spring on the door.  It does not stay open on its own.  I have tried turning the screws at bottom left and right as indicated in instruction diagram but,that did not help.
Can I do anything else ?
thanks
Lyne
P.S. my wood panel is not yet installed, could that be the reason?  Does it need the weight of the door to reduce the spring?