Cooling system of an internal combustion engine

Cooling system for a combustion engine (10), which is comprised of a CI motor (12) with at least two cylinder banks (14, 16) and an identical number of exhaust gas heat exchangers (18, 20) as the number of cylinder banks, wherein a fluid serving as coolant can flow through the cooling system in a preferred flow direction and comprising a cooling system's primary section (30), and an identical number of the cooling system's branch sections as the number of cylinder banks (14, 16) of the CI motor (12), which respectively have a cylinder bank branch section (22, 24), branch sections of the exhaust gas heat exchanger (36, 38) and a merging branch section (44, 46), wherein the cooling system's primary section (30) ends in the cylinder bank branch sections (22, 24), which each have a branch section outlet of the cylinder bank that can be in contact with fluid through a designated cylinder bank inlet (26, 28), while the branch sections of the exhaust gas heat exchanger (36, 38) each comprise a branch section inlet of the exhaust gas heat exchanger and a branch section outlet of the exhaust gas heat exchanger, which can each be in contact with fluid through a designated cylinder bank outlet (31, 33) and each one designated exhaust gas heat exchanger inlet (32, 34), wherein each of the merging branch sections (44, 46) have a merging branch section inlet, which can each be in contact with fluid by an exhaust gas heat exchanger outlet (40, 42) and wherein the merging branch sections (44, 46) are furthermore in contact with fluid through the cooling system's primary section (30) in the preferred flow direction downstream from the merging branch section inlets, and wherein a connection device for a retarder (74) is provided in the cooling system's primary section (30).