1997 Nissan Altima Owner's Manual - Page 136

f. Wait 10 seconds before turning ignition switch OFF. ● Manual air conditioning a. Turn the ignition switch ON and set the temperature control lever to the maximum hot position. Wait 10 seconds, then turn the switch OFF. 2. Open the radiator drain plug. Open the drain plug on the engine water pipe. 3. Open the radiator cap to drain the coolant. 4. Flush the cooling system by running fresh water through the radiator. 5. Close the radiator drain plug and the drain plug on the engine water pipe securely. 6. See the ''Technical and consumer information'' section for cooling system capacity. Fill the radiator slowly with the proper mixture of coolant and water. Fill the reservoir tank up to the MAX level. 7. Open and close the air release plug to release air. Then fill the radiator again and install the radiator cap. DI1351 DI1299 8. Start the engine and warm it up until it reaches normal operating temperature. Then race the engine 2 or 3 times under no load. Watch the coolant temperature gauge for signs of overheating. 9. Stop the engine. After it completely cools down, refill the radiator up to the filler opening. Fill the reservoir tank up to the MAX level. 10. Open and close the air release plug to release air. Then fill the radiator again and install the radiator cap. 11. Check the radiator drain plug and the drain plug on the engine water pipe for any sign of leakage, tighten if necessary. 7-6