Fastening device for a component within a recess of a body part

The fixing has a retainer at one edge of the automobile component lamp (3), for engaging a side edge of the reception opening (2) for the automobile component and a spring retaining clip (19) at the opposite edge of the automobile component, cooperating with the opposite side edge of the reception opening. The automobile component is inserted in a given angular orientation before being pivoted into an operating position via an intermediate device (21), such that the spring retaining clip engages the reception opening side edge.