- cooling system, engine cooling system - equipment in a motor vehicle that cools the engine
--1 is a kind of equipment
--1 is a part of motor vehicle, automotive vehicle
--1 has parts:fan; fan belt; pump; radiator; radiator hose; thermostat, thermoregulator - cooling system, cooling - a mechanism for keeping something cool; "the cooling was overhead fans"
--2 is a kind of mechanism
--2 has parts: water pump
--2 has particulars:air conditioner, air conditioning; coolant system; cooling tower; evaporative cooler; refrigeration system