The Heater Core in Mercury Capri automobiles is used to warm the interior of the car and uses waste heat from the engine. Looking somewhat like a smaller radiator, it is cooled by a mix of water and antifreeze that flows close to the engine and a metal part of the core transfers heat to the air going into the cabin. Apart from aluminum and brass used in making heater cores, there are some heaters with the core having valves or doors for efficient temperature control. The heater core in air-conditioned vehicles also helps in dehumidification and sometimes the engine cooling system also. However, simplest problems as clogging and leakages turn into expensive problems often implying the necessity of intricate works on the dashboard.