An accelerator pedal unit for a motor vehicle, having a base body on which an accelerator pedal is accommodated rotatably mounted in a rotary joint and which, starting from a resting position, can be moved by actuation in an actuating direction. A sensor unit is accommodated in the base body, which senses the position of the accelerator pedal via a feeler element. A return spring is provided, with which the accelerator pedal is prestressed into the initial position. A moveable counter-stop element can be moved into a stop position in which, when the accelerator pedal is actuated, the stop element comes into contact with the counter-stop element and runs into the sprung unit when an additional force is applied to the accelerator pedal and can be moved into a release position in which, when the accelerator pedal is actuated, the stop element can move freely in a movement region.