Abstract: In the case of a multi-function operating device for motor vehicles, a single bidirectional rotary switch having stop positions and axial movability is used to designating function groups and to select them by means of an enter function arrangement and subsequently, within the respective function group, select the pertaining function in the same manner. The sole operating element in the form of the rotary switch can be operated without any problems and permits the desired selection or operating function at any time and without drawing attention away from the traffic situation.