How do you replace a radiator on Toyota echo?

To replace the radiator on a Toyota Echo, start by draining the coolant from the radiator and disconnecting the negative battery terminal. Remove the hoses connected to the radiator, then unbolt the mounting brackets or clips holding the radiator in place. Lift the old radiator out and install the new one, reconnecting the hoses and refilling the cooling system with coolant. Finally, reconnect the battery and check for leaks before starting the engine.