Abstract: A container for the coolant of an internal combustion engine including a first chamber (11), which forms the coolant reservoir and has a connection to a radiator. The first chamber is equipped with a sealing cap (19), and the sealing cap seals the first chamber via a threaded, bayonet or snap connection. An additional chamber (15) is provided as an overflow reservoir, which communicates with the first chamber (11) and which is equipped with an outlet. A third chamber (16) is arranged within the container, which at its geodetically lower end has a connection in the form of an opening to the second chamber (15). This third chamber (16) communicates with the first chamber (11) via an interposed pressure relief valve (20).

Abstract: A container for the coolant of an internal combustion engine including a first chamber (11), which forms the coolant reservoir and has a connection to a radiator. The first chamber is equipped with a sealing cap (19), and the sealing cap seals the first chamber via a threaded, bayonet or snap connection. An additional chamber (15) is provided as an overflow reservoir, which communicates with the first chamber (11) and which is equipped with an outlet. A third chamber (16) is arranged within the container, which at its geodetically lower end has a connection in the form of an opening to the second chamber (15). This third chamber (16) communicates with the first chamber (11) via an interposed pressure relief valve (20).