Assembly device for fastening trim parts

The invention relates to a fastening element (10) for fastening cladding parts, with a fastening section (12) to which a cladding part can be attached, and a latching section (14) that can latch onto a carrier (42) for the fastening element (10), wherein the latching section (14) has at least one latching tab (24), with a release tab (26) being provided on the latching tab (24), on which a tool (74) can engage, with which the latching tab (24) can be adjusted into a release position.