A small bottle that acts as a reservoir for liquid expelled from the cooling system through the overflowpipe and returns the liquid to the system when it cools down. A special radiator pressure cap is also part of the kit. It is also called a "ClosedCoolingSystem" when it is part of the original equipment .
COOLANT RECOVERY SYSTEM
Meaning of COOLANT RECOVERY SYSTEM in English
English dictionary of automotive terms. Английский словарь автомобильных терминов. 2012