How do you change coolant in radiator of dawoo nubira?

To change the coolant in a Daewoo Nubira's radiator, start by ensuring the engine is cool and then remove the radiator cap. Place a drain pan under the radiator and open the drain valve to let the old coolant flow out completely. After draining, close the valve, refill the radiator with a mixture of new coolant and water (check the manufacturer’s recommendations for the correct ratio), and run the engine briefly to circulate the new coolant. Finally, check for leaks and ensure the coolant level is at the proper mark before replacing the radiator cap.