Where is the thermostat located on the Vios?

[McFelix]

Toyota Vios thermostat is located on the lower radiator hose, to the right of the exhaust manifold. Here is more information about the thermostat: 1. Introduction: The thermostat automatically adjusts the amount of water entering the radiator based on the coolant temperature, changing the water circulation range to regulate the cooling system's heat dissipation capacity, ensuring the engine operates within an appropriate temperature range. 2. Working principle: Automobiles typically use a wax-type thermostat. When the coolant temperature is below the specified value, the refined paraffin inside the thermostat's temperature-sensing element remains in a solid state, and the thermostat valve closes the passage between the engine and the radiator under the action of the spring. The coolant returns to the engine via the water pump, performing a small circulation within the engine.