es gab mal eine Umbauaktion aus Umweltgruenden mit diesem Plastik Support Tower, finde jetzt auf die schnelle nur die TI fuer
http://www.bimmerboard.com/members/d...97%20(229).pdf
Support tower in oil-filter housing E31, E32, E34, E38 / M60/1, M60/2, M70, M73
Situation: Environmentally friendly oil filter elements have been installed in the above engines at the factory since September 1995. For this reason, it was necessary to modify the oil filter element fixture in the form of a support tower. This support tower is fixed in the oil-filter housing and cannot be removed.
Support tower (single retrofit operation only necessary) No. 11421745 392
Filter ist also immer danach auszusuchen, ob man diesen Plastikeinsatz hat oder nicht