The heating and ac
in a car
is operated by the heater motor which uses part of the coolant. The latter heats up whilst flowing through the engine. The heat is then used by the heater motor
as heating for the cabin area.
The air conditioning
works with car parts including the ac compressor
, the condenser
and the ac filter. As opposed to the heater, the ac does not use coolant, but air conditioning gas to cool.