How do you replace heater control valve Ford Fiesta A 1.4?

To replace the heater control valve on a Ford Fiesta 1.4, start by disconnecting the battery to ensure safety. Drain the coolant from the cooling system and locate the valve, typically found near the firewall where the heater hoses connect. Disconnect the hoses and electrical connectors from the valve, then remove the mounting screws to take out the old valve. Install the new valve by reversing the process, ensuring all connections are secure and refilling the cooling system afterward.