An AC condenser is a component of the air conditioning (AC) system. It is located just behind the grille at the front of your vehicle, immediately ahead of the radiator. The condenser resembles a skinny radiator made of aluminum. It is made up of thin tubes that snake their way across an array of even thinner aluminum cooling fins. This arrangement, just like a radiator, allows for easy dissipation of heat as air passes through the condenser.
Refrigerant in the AC system is pressurized by a pump, the AC compressor. The refrigerant leaves the compressor in a hot gaseous state and makes its way to the AC condenser. There, heat is drawn away from the refrigerant and absorbed into the matrix of tubes and cooling fins. When air passes through, the heat passes into the atmosphere. As a result, the refrigerant cools down and condenses into a liquid.