we have opened the case again and hope to find the problem
one of the plugs blocks the oilchannel (only 50% of the diameter are open)
@Turbo
we have checked all things befor open the case again..
Have to drill out the plug and hope that the oilpressure will ok now.
Another little Proble was the Mahle bearings...
seems they are not fitting like K&S bearings, 6/100mm smaller in diameter than the K&S bearing...that sucks
Change also the mahle bearings to kolbenschmidt