A device is described for a motor vehicle for occupant protection during an energy impact acting laterally on the door area of the motor vehicle comprising a vehicle seat being located on the side of the motor vehicle door (2) facing away from the energy impact, which provides at least one side-impact member (1) projecting through the interior of the motor vehicle door (2). The side-impact member (1) has at least two sections (4) connected to one another via a joint region (3) in longitudinal extension, the joint region (3) has an adjustable flexural resistance, and the flexural resistance of the joint region (3) is changeable as a function of the energy impact acting on the motor vehicle door (2).