Transmission Oil/Water Heat Exchanger

Transmission Oil/Coolant Heat Exchanger

The transmission oil/coolant heat exchanger ensures that the transmission oil is heated up quickly and also that it is appropriately cooled. When the engine is cold, the transmission oil/coolant heat exchanger thermostat switches into the engine's recirculated coolant circuit. This allows the transmission oil to heat up as quickly as possible (with the engine coolant).

When the return flow water temperature reaches 82 °C, the thermostat switches the transmission oil/coolant heat exchanger to the low-temperature coolant radiator circuit (refer to the cooling circuit diagram) to cool the transmission oil.