Condenser, function - GF83.40-P-2120-01A
WARNING: This page does not describe the selected car, but rather 42 other vehicles, including the 1999 Mercedes-Benz S600, 1999 Mercedes-Benz S500, 1999 Mercedes-Benz S420, 1999 Mercedes-Benz S320, and 1999 Mercedes-Benz CL600. However, it is still accessible from the selected car via links, so may be relevant.
Function
The hot refrigerant is pressed into the condenser from above coming from the A/C compressor. Banks of tubes and louvers quickly absorb this heat. Exterior air is pressed or sucked through the condenser and heated up thereby cooling the refrigerant.
As the refrigerant is cooled down to a certain temperature dependent on the pressure, the refrigerant condenses and becomes liquid. The liquid refrigerant exits from the condenser at the bottom and flows into the receiver/drier.