Abstract: A coupling device for releasably connecting a pivotably mounted body part to a vehicle structural part includes a first coupling element and a second coupling element. The first coupling element has two locking bars which are configured as plate-shaped dosing wedges and are displaceable in relation to one another in a parallel manner. The dosing wedges have respective wedge faces. In order to couple the first and the second coupling element, a motorized driving device moves the locking bars apart from one another by using an operative connecting device. The second coupling element has two holding jaws, which receive the first coupling element therebetween. The holding jaws have respective keyways with respective wedge faces formed therein such that the dosing wedges are pressed into the keyways as a result of the dosing wedges being displaced apart from one another.