Abstract: An air flap device, preferably for use in motor vehicles, comprising a housing that defines a flow passage opening, at least one air flap that is accommodated movable on the housing such that by adjusting the air flap relative to the housing the effective flow cross-section of the flow passage opening can be changed, a heat source arranged in the air-flow direction behind the at least one air flap, an energy source that is separate from the heat source, and at least one controllable flap actuator that can be controlled by a control unit (20) which has an energizing connection to the separate energy source, for adjusting an air flap relative to the housing. In this context, at least one automatic flap actuator is also provided, which is supplied with thermal energy provided directly by the heat source for adjusting an air flap relative to the housing.