2010 Nissan Cube — Repair Manual - Enging Cooling System (Section CO)
Check drained engine coolant for contaminants such as rust, corrosion or discoloration. Remove air duct (between air cleaner case and electric throttle control actuator). Install air duct (between air cleaner case and electric throttle control actuator).
Repeat steps 5 through 10 two or more times with radiator cap installed until engine coolant level no longer drops. If sound is heard, bleed air from cooling system by repeating step 5 through 10 until reservoir tank level no G longer drops. Blow air again into all the radiator core surfaces once per minute until no water sprays out.
Apply on fan motor shaft : Apply genuine high strength thread locking sealant or equivalent. J The valve opening temperature is the temperature at which the valve opens and falls from the thread. K After checking the maximum valve lift amount, lower the water temperature and check the valve closing temperature.