Coolant circuit for electric powertrain
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The following components are incorporated in the coolant circuit for the electric powertrain:
Thermal management coolant pump 4 V620, voltage converter for 800 V, 400 V, 48 V, 12 V A48, power contactor with boost func-
tion J1178, coolant temperature sender 5 for thermal management G906, three-phase current drives VX89 and VX90, changeover
and mixing valve for thermal management V650, coolant temperature sender 2 for thermal management G903, changeover and
mixing valve 2 for thermal management V651, coolant temperature sender 3 for thermal management G904, low-temperature
radiator 8, coolant temperature sender 9 for thermal management G1017, coolant changeover valve 2 N633. The restrictor 10,
non-return valve 9, coolant expansion tank 2 (for high-voltage system) 7 and coolant shortage indicator sender 2 G837 are also
part of the coolant circuit for the electric powertrain.
Temperatures of up to 65 °C can occur in the coolant circuit for the electric powertrain.
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