Heating S 60 Drive

Hello, I have exactly the problems with my new S 60 Drive (Bj. 07/12) like Pellexc in the thread to the XC 60. The wagon is not really warm when setting the heating in automatic mode. Even with the temperature adjustment of both sides 23° C no sufficient heating power is provided. The air distribution is poor, from the nozzles in the middle comes almost no air flow, with manual distribution in the footroom there is also no recognizable power. Do you have similar experiences? With 2 other Volvos, which I had (V 50 and V 70), the heating worked excellently. Greetings Jolalongo