Outside air enters the plenum via two inlets in the lower finisher at the base of the windshield.
If the air conditioning system is operating in FRESH mode (not recirculation mode), then air is drawn through an air particle filter (where fitted) and into the air conditioning unit via the blower interconnecting ducts in the LH and RH blower assemblies. Air is cooled and dehumidified as it passes through the evaporator and is then 'reheated' to the required temperature as it passes through the heater matrix.
In RECIRCULATION mode, the air in the passenger compartment is drawn into the air conditioning unit via the recirculation air inlets on the blower assemblies.
In FRESH mode, air flows from the cabin into the trunk via extraction slots in the rear parcel shelf at the base of the backlight on the Coupe and the hood containment panel on Convertible. The air is exhausted from the vehicle through extraction vent assemblies (incorporating one way flaps) whose outlets are above the rear mufflers.
