Abstract: An arrangement for providing combustion air as well as cabin air for a motor vehicle includes an engine air intake duct which opens through the fire wall of the motor vehicle so that cabin air is used for combustion air. Fresh cabin air is continuously introduced to the vehicle cabin through a filter arrangement disposed in the trunk of the vehicle so that atmospheric air is first drawn through the filter element in the trunk of the vehicle to provide cabin air and the cabin air is then drawn for use as combustion air through an opening in the vehicle fire wall. In an additional embodiment of the invention, there is an additional combustion air filter disposed in the cabin of the vehicle for filtering cabin air prior to using the cabin air as combustion air. With this arrangement the combustion air filter is easy to change. In both embodiments available space the engine compartment of the vehicle can be increased because the air filter has been removed from the engine compartment.