OPERATING DEVICE FOR A MOTOR VEHICLE, MOTOR VEHICLE WITH AN OPERATING DEVICE AND METHOD FOR OPERATING AN OPERATING DEVICE

The invention relates to an operating device for a motor vehicle, comprising an operating element, which can be lowered by application of force; a snap dome arranged below the operating element for applying haptic feedback to the operating element when the snap dome is deformed by means of the operating element lowering; a blocking body made of an electroactive polymer arranged below the operating element and next to the snap dome, the shape of which blocking body can be altered depending on an electrical voltage applied thereto such that lowering of the operating element is blocked or lowering of the operating element for deforming the snap dome is enabled; a detection apparatus for detecting a contact position of a finger on the operating element; a control apparatus which is set up to adjust a voltage at the blocking body depending on the detected contact position of the finger. The invention further relates to a method for operating an operating device and to a motor vehicle comprising an operating device of this kind.