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Home >> Infiniti >> 2009 >> EX35 Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 7 (Engine Cooling System) >> On-Vehicle Maintenance >> Engine Coolant >> Refilling

Engine Coolant: Refilling

WARNING: This page is about a different car, the 2008 Infiniti EX35. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove engine cover. Refer to EXPLODED VIEW .
  2. Install reservoir tank if removed, and radiator drain plug.
    CAUTION: Be sure to clean drain plug and install with new O-ring.

    Tightening torque:  Refer to EXPLODED VIEW  .

    If water drain plugs on cylinder block are removed, close and tighten them.  Refer to DISASSEMBLY AND ASSEMBLY .

  3. Check that each hose clamp has been firmly tightened.
  4. Remove air relief plug (2) on radiator left side.
    Fig 1: Identifying Air Relief Plug On Radiator
    G05726214Courtesy of NISSAN MOTOR CO., U.S.A.
  5. Remove air relief plug (1) on heater hose.
    Fig 2: Identifying Air Relief Plug On Heater Hose
    G05726215Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Fill radiator, and reservoir tank if removed, to specified level.
    • Pour engine coolant through engine coolant filler neck slowly of less than 2 l (2-1/8 US qt, 1-3/4 lmp qt) a minute to allow air in system to escape. 
    • Use Genuine NISSAN Long Life Antifreeze/Coolant or equivalent mixed with water (distilled or demineralized).  Refer to FLUIDS AND LUBRICANTS .

      Engine coolant capacity:  Refer to PERIODICAL MAINTENANCE SPECIFICATION  .

      (With reservoir tank at "MAX" level) 

      Fig 3: Identifying Engine Coolant To Specified Level
      G05226897Courtesy of NISSAN MOTOR CO., U.S.A.

      Reservoir tank engine coolant capacity:  Refer to PERIODICAL MAINTENANCE SPECIFICATION  .

      (At "MAX" level) 

      Fig 4: Identifying Engine Coolant To Specified Level (MAX And MIN)
      G05726217Courtesy of NISSAN MOTOR CO., U.S.A.
  7. When engine coolant overflows air relief hole on radiator, install air relief plug with new O-ring.

    Tightening torque:  Refer to EXPLODED VIEW  .

  8. Repeat step  6.
  9. When engine coolant overflows air relief hole on heater hose, install air relief plug with new O-ring. Then refill radiator with engine coolant.

    : 1.2 N.m (0.12 kg-m, 11 in-lb) 

  10. Install radiator cap.
  11. Warm up engine until opening thermostat. Standard for warming-up time is approximately 10 minutes at 3,000 rpm.
    • Check thermostat opening condition by touching radiator hose (lower) to see a flow of warm water.
    CAUTION: Watch water temperature gauge so as not to overheat engine.
  12. Stop the engine and cool down to less than approximately 50°C (122°F).
    • Cool down using fan to reduce the time.
    • If necessary, refill radiator up to filler neck with engine coolant.
  13. Refill reservoir tank to "MAX" level line with engine coolant.
  14. Repeat steps  10 through  13 two or more times with radiator cap installed until engine coolant level no longer drops.
  15. Check cooling system for leakage with engine running.
  16. Warm up the engine, and check for sound of engine coolant flow while running engine from idle up to 3,000 rpm with heater temperature controller set at several position between "COOL" and "WARM".
    • Sound may be noticeable at heater unit.
  17. Repeat step  16 three times.
  18. If sound is heard, bleed air from cooling system by repeating step  6, and steps from  10 to  17 until engine coolant level no longer drops.
  19. Check that the reservoir tank cap is tightened.
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