Device for fixing a piece of equipment, in particular a heat exchanger, on a motor vehicle structural element

A device for fixing motor-vehicle equipment into a structural element of the vehicle including an open part in which the equipment is mounted, comprising at least two shoes made from a deformable material and arranged on either side of the equipment, the structural element having at least two substantially parallel and horizontal inner rims delimiting the open part, further having at least two lateral abutments projecting from the rims, and wherein each shoe bears on one of the rims, and on an outer prominent surface of the equipment such that when the equipment is mounted by force between the shoes, the shoes are positioned completely flush against the rim and the outer prominent surface for immobilization of the equipment, wherein the shoes are further in contact with the lateral abutments and positioned completely flush with the lateral abutments in order to avoid the shoes sliding in a direction parallel to the rims, wherein the parallel inner rims and the lateral abutments are integral, wherein the shoes exhibit a substantially “U” shape having two legs that are in contact with the equipment so as to hold it substantially fixed in a plane passing through the two rims.