Transaxle Cooling: Notes

WARNING: This page is about a different car, the 2010 Lincoln MKX and 2010 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.

The transmission fluid cooling system consists of the following:

Oil-To-Air (OTA) transmission fluid cooler
Transmission fluid cooler tubes
Transmission fluid thermal bypass valve
Transmission fluid cooler inlet tube
Transmission fluid cooler return tube

This vehicle is equipped with an external transmission fluid cooler. The transmission fluid cooler is mounted in front of the engine radiator. The transmission fluid cooling system also consists of a transmission fluid thermal bypass valve which is mounted on the transaxle main control cover. When the transmission fluid is below normal operating temperature, transmission fluid travels from the transaxle to the transmission fluid thermal bypass valve then back to the transaxle. When the transmission fluid is at or above normal operating temperature, the transmission fluid thermal bypass valve opens allowing transmission fluid to travel from the transaxle through the transmission fluid cooler then back to the transaxle. The transmission fluid cooler transfers heat from the transmission fluid to the outside air.