“Cooling system for a hybrid powertrain provided with an EGR”

A cooling system comprises a high temperature cooling circuit 20, a low temperature cooling circuit 30 and a motor generator unit (MGU) cooler 36 for a motor generator unit 10 which is connected along the low temperature cooling circuit 30 of an exhaust gas recirculation system (EGR) 300. The MGU 10 is connected downstream of a low temperature radiator 33 and upstream of a low temperature cooler 31 in the low temperature cooling circuit 30. A hybrid powertrain has an internal combustion engine, e.g. diesel engine 110, which has the exhaust gas recirculation system 300, at least one motor generator unit 10 and the cooling system.