How do you replace Heater on a Daewoo nubira?

To replace the heater in a Daewoo Nubira, start by disconnecting the battery and draining the coolant from the radiator. Remove the dashboard and any necessary panels to access the heater core. Disconnect the hoses and mounting screws from the heater core, then carefully remove it from the vehicle. Install the new heater core by reversing the disassembly steps, ensuring all connections are secure before refilling coolant and reassembling the dashboard.