Abstract: A passenger space ventilation system for motor vehicles in which stale passenger air is removed toward the outside through openings within the rear area of the body and in which after leaving the passenger space but prior to the discharge into the air flow about the vehicle, the exhaust air from the passenger space is conducted past heated vehicle parts for cooling the same. The air guidance for the stale passenger space air consists at least within the area of the heated vehicle parts of air-guide channels which are formed on the side facing an interior of the vehicle of molded parts that consist of heat-insulating material.

Abstract: A passenger-space ventilation system for motor vehicles, especially for passenger motor vehicles, in which the used-up passenger-space exhaust air, after its discharge out of the passenger space but prior to its discharge into the outside air stream flowing about the vehicle, is conducted past heated-up vehicle parts for purposes of cooling the same.