Abstract: A valve assembly for influencing operating fluid flows in a motorized vehicle, where the valve assembly includes: A valve housing with a main housing body and a housing lid, A fluid line arrangement with at least two fluid lines, A valve body configured as tapering along an actuating axis which is accommodated rotatably about the actuating axis between at least two fluid lines of the fluid line arrangement in such a way that through rotation of the valve body about the actuating axis, a flow-connection state of the at least two fluid lines proceeding in different spatial regions with each other is modifiable, and A pre-tensioning means arranged between the housing lid and the valve body which loads the valve body along the actuating axis, wherein it is provided that between the valve body and the main housing body there is arranged a guide shell surrounding the valve body, where the valve body is loaded through the pre-tensioning means towards the guide shell along a first pre-tensioning force path, where