How do you fit a thermostat on 2002 land rover discovery?

To fit a thermostat on a 2002 Land Rover Discovery, first, ensure the engine is cool and disconnect the battery. Remove the engine cover and drain the coolant from the radiator. Next, locate the thermostat housing, typically found near the top of the engine, and unbolt it to access the thermostat. Replace the old thermostat with the new one, ensuring the gasket is in place, reassemble the housing, refill the coolant, and reconnect the battery.