Abstract: A heat exchanger for a motor vehicle, has an outer sheath and heat exchanger tubes are arranged in the outer sheath and a medium is feedable into the sheath on the front side and is removable on the opposite side, wherein a front plate is arranged in each case on the end side of the covering, wherein the front plate has openings through which the medium is transferrable into the heat exchanger tubes, and, in particular, the heat exchanger tubes at least partially reach through the openings, which heat exchanger is characterized in that flat surfaces are formed on the front plate on the border side between the openings, wherein guide elements are arranged indirectly or directly in front of the flat surfaces in the direction of flow, wherein the face areas of the directing elements overlap at least the flat surfaces in the direction of flow.