Engine Cooling - TDV6 3.0L Diesel/TDV6 3.0L Diesel - Gen 1.5/TDV6 3.0L Diesel - Gen 2 (G1950019): Description: Thermostat
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| Item | Description |
|---|---|
| 1 | Heater return hose connection |
| 2 | Bypass hose connection |
| 3 | Thermostat bracket |
| 4 | Lower hose connection |
| 5 | Coolant expansion tank return hose connection |
| 6 | Coolant pump coolant inlet connection |
A pressure relief type thermostat is located behind the radiator, on a bracket attached to the cooling fan shroud. The thermostat body contains a wax element and a spring loaded bypass valve.
The thermostat housing is connected to the following:
- The radiator lower hose
- The engine bypass hose
- The feed hose to the engine coolant pump
- The heater return hose
- The coolant expansion tank return hose.
The thermostat allows rapid engine warm-up by preventing coolant flow through the radiator and by limiting coolant flow through the cylinder block when the engine is cold. The thermostat is not a serviceable item and it can be replaced as an assembly.