The invention relates to an input device comprising: a touch-sensitive input surface facing towards an operator (B); a detection device for the spatially resolved detection of an approach towards and touch on the touch-sensitive input surface having a sensor array for capacitive and/or inductive detection, which extends parallel to the input surface; an input part, which is disposed on the input surface and mounted so as to be movable from a rest position (X0) into an actuation position (XE) along an actuating direction (B1) extending perpendicularly to the input surface, for enabling a performance of an operating input by the operator (B) through a manual displacement of the input part along the actuating direction (B1); a position indicator for contactless position detection, which is attached to the input part and cooperates with the detection device; restoring means for generating a restoring force (F) with snap haptics counteracting the manual shifting from the rest position (X0); wherein the detection device is designed for acquiring a course over time of an approach towards the touch-sensitive input surface by means of a course over time of a sensor signal (Z(t)) of the detection device and to analyze the course over time of the sensor signal (Z(t)) and/or an associated frequency spectrum, and is further designed to assign a switching or controlling function exclusively if it was found in the preceding analysis that the course over time of the sensor signal (Z(t)) and/or the associated frequency spectrum has characteristics that are predefined by the snap haptics.