A vehicle locking apparatus for a vehicle using a coupling device for the separable connection of a vehicle door to a vehicle structure part, includes a first coupling element with two locking wedges mounted so as to be displaceable parallel to one another and having wedge faces. At least one of the locking wedges is formed with a locking nose on the wedge-side end face, and a second coupling element interacts with the first coupling element. The second coupling has two retaining jaws receiving the first coupling element therebetween with wedge grooves having wedge faces. The locking wedges are pushed via a driving device into the wedge grooves by separation of the wedge faces apart from one other and the locking nose is thereby received in a locking opening arranged in a wedge groove of a retaining jaw.