A motor vehicle includes a passenger compartment having at least one vehicle seat and a fixation element fixing a child seat with a counter-fixation element. A flap with a front side and back side that can be moved between a closed position and an open position, so that the fixation element is inaccessible for the counter-fixation element in the closed position of the flap, and the fixation element is accessible for the counter-fixation element in the open position of the flap. The flap is mounted in such a way that, in the open position of the flap, a back side of the flap forms a ramp for the counter-fixation element to mechanically guide the counter-fixation element to the fixation element.