A motor vehicle contains a main and at least one secondary radiator. The air supply to the secondary radiator through a pressure fan in a separate air feed duct is completely separate from that of the main radiator. In order to obtain the largest possible cooling surface in the given cross-section of the air feed duct, the secondary radiator is designed curved or angled towards the outlet side. The large surface on the outlet side reduces pressure losses and the distance of the fan from the secondary radiator necessitated by the said arrangement improves the flow conditions.
