A coupling assembly comprises a coupling which is arranged between a driving gear and a differential drive; a controllable actuator for actuating the coupling; a sensor for determining switching positions of the coupling; and a target element which cooperates with the sensor, wherein the target element is axially moved upon actuation of the actuator; wherein a first coupling part of the coupling is connected to a differential carrier of the differential drive and wherein a second coupling part of the coupling is held in a rotationally fixed and axially movable way relative to a differential housing of the differential drive, and wherein the target element is secured to the second coupling part by a bayonet-type connection.