How do you change MR2 Thermostat?

To change the thermostat on a Toyota MR2, start by disconnecting the negative battery terminal to ensure safety. Drain the coolant and remove the hoses connected to the thermostat housing. Unbolt the thermostat housing, take out the old thermostat, and clean the mating surfaces before installing the new thermostat with a new gasket. Finally, reassemble everything, refill the coolant, and reconnect the battery.