A/C Condenser

It is made of aluminium tubes and fins, like a thin radiator. Many condensers include a receiver drier that holds a desiccant. Because it sits at the very front of the car, it is exposed to stones, insects and road salt. The cooling fan pulls air through it when the car is moving slowly.

Hot gas from the compressor flows through the condenser; outside air cools it until it becomes a high-pressure liquid.

A damaged or blocked condenser reduces cooling, especially in traffic, and can make pressures too high. Leaks from stone damage are common; the condenser is usually replaced rather than repaired.