Description And Operation: Description: Thermostat
WARNING: This page is about a different car, the 2018 Land Rover Range Rover, 2017 Land Rover Range Rover, and 2016 Land Rover Range Rover. However, it is still accessible from the selected car via links, so may be relevant.
| 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.