The invention relates to a device for snap-fastening an airbag unit in a subassembly of a motor vehicle, especially in a steering wheel of a motor vehicle, snap-in elements that are associated with each other being provided on the airbag unit and on the subassembly of the motor vehicle. In order to be able to snap-secure an airbag unit both to a plate-shaped subassembly and to a subassembly having a lateral wall, at least one snap-in hook (3, 22, 40) is provided on the airbag unit (1, 21, 41) or on the subassembly of the motor vehicle (2, 24, 38), at least one pivotable plastic snap-in clip (4, 17, 17a) being associated therewith on the other subassembly. The snap-in hook (3, 22, 40) engages with said clip in at least one section thereof when in the snap-in position.