Abstract: An arrangement for mounting a cooling system radiator in the engine compartment of an automobile vehicle, the radiator including a base portion and a top portion and the engine compartment including a beam structure having a horizontal bottom beam member for supporting and positioning the base portion of the radiator, a horizontal top beam member and a horizontal intermediate stiff beam member, the top and intermediate beam members being transversely offset on the same side with respect to the bottom beam member, the arrangement further including a one-piece spring wire unit having a first and second leg connected together at one end thereof so as to extend substantially perpendicular to one another when the spring wire unit is not strained, the spring wire unit being mounted under strain so that the first leg extends from a connection with a second leg from above the top beam member substantially horizontally over the radiator, a free end of the first leg being pressed downwardly on the top portion of the ra