Abstract: A heat exchanger unit for motor vehicles includes one first heat exchanger and one second heat exchanger. Each heat exchanger includes two collector pipes which are arranged at a distance from each other. One collector pipe of the first heat exchanger is arranged substantially adjacent to one collector pipe of the second heat exchanger. Also, the other collector pipe of the first heat exchanger is arranged substantially adjacent to the other collector pipe of the second heat exchanger.

Abstract: A heat exchanger unit for motor vehicles includes one first heat exchanger and one second heat exchanger. Each heat exchanger includes two collector pipes which are arranged at a distance from each other. One collector pipe of the first heat exchanger is arranged substantially adjacent to one collector pipe of the second heat exchanger. Also, the other collector pipe of the first heat exchanger is arranged substantially adjacent to the other collector pipe of the second heat exchanger. One and/or the transversal sections of the covering wall of the collector pipe does not have a circular shape, the sections being perpendicular to the longitudinal axis of a collector pipe of the first heat exchanger.

Abstract: The invention relates to a metal side-plate for a radiator, in particular a tubular radiator, such as those found in motor vehicles with combustion engines. According to the invention, the metal side-plate (20) is secured to securing points (13) on both sides of the collecting tubes (12) and a longitudinal slot (21) is introduced into the metal side-plate on at least one side in the region of the fixing. The fixing points (13) on the metal side-plates (20) are embodied on collecting tubes (12) on one side of the longitudinal slot.