Hello all, on my 230,467, no adjustment can be made on both sides via the switch of the multi-contour seats. The seat adjustment is without problems. I hear something clacking in the seat when switching – think it could be the valves. The small plug is connected to both switches. Furthermore, there is a pressure line with integrated in the cable harness at the switch. This pressure line is not connected on both sides. In the area I also find no connection possibility. Who has information for me, how is the system built up, from where comes the pressure, where sit the components, on what is to be paid attention? Thank you and greetings Willy