Abstract: The actuating system has a handle pivoted about a handle axis on the door, an actuating part fixed on the handle and extending radially from the axis, and a damper fixed on the door adjacent the axis and having an input element. The actuating part is connected to the input element for displacement of the input element and operation of the damper on pivoting of the handle. The input element is rotatable about a damper axis and the connection is a positive rotational coupling. The coupling includes gear teeth on the actuating part and gear teeth on the rotary input meshing with the actuating-part gear teeth. More specifically the rotary input element is a gear wheel and the actuating part includes a sector gear in mesh with the gear wheel.