Abstract: The invention relates to a side door of a passenger vehicle, which for opening purposes, following a sideways movement which moves the side door out of the door aperture, is actuated by auxiliary forces to pivot forwards and upwards around a horizontally aligned, bodywork-mounted bearing point, and it is proposed, in order to provide quick release from the A-pillar and to create the preconditions for a conveniently operating movement mechanism with expedient accommodation for the latter, that in the horizontal plane, in relation to the transverse direction of the vehicle, the pivot axis of the bearing point respectively runs at an angle, which does not exceed for example 25.degree. in each case, in the anticlockwise direction on the left-hand side and in the clockwise direction on the right-hand side.