Infinity_QX56_2004-2005

Heater Core

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Removal & Installation




NOTE
Before servicing, or working around, the SRS system, turn the ignition switch OFF, disconnect both battery cables and wait at least three minutes. When servicing, or working around, the SRS system do not work directly in front of the air bag module.



Click image to see an enlarged view

Fig. Exploded view front heater core assembly-



Click image to see an enlarged view

Fig. Exploded view of the Instrument Panel assembly-

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Discharge the refrigerant from the A/C system.
  4.  
  5. Drain the cooling system.
  6.  
  7. Remove or disconnect the following:

    Negative battery cable
     
    Front heater hoses from the front heater core
     
    Pressure pipes from the front expansion valve
     
    Left-hand instrument panel lower cover
     
    Steering column
     
    Right-hand instrument panel lower cover
     
    Glove box assembly
     
    Center console lower covers
     
    Center console electrical connectors
     
    Center console
     

  8.  
  9. Remove the power sockets (cigarette lighter) as follows:
    1. Remove inner socket from the ring, while pressing the hook on the ring out from square hole.
    2.  
    3. Disconnect power socket connector.
    4.  
    5. Remove ring from power socket finisher while pressing pawls.
    6.  

  10.  
  11. Remove or disconnect the following:

    Radio cluster cover
     
    Radio unit
     
    Display unit cluster lid
     
    Display unit and center speaker connectors
     
    Display unit

    Click image to see an enlarged view

    Fig. Exploded view of the display unit-

     



    Left-hand lower knee protector
     
    Defroster grille
     
    GPS antenna
     
    Optical sensor
     
    Side ventilator assemblies
     
    A-pillar trim
     
    Passenger side airbag module
     
    Instrument panel electrical connectors
     

  12.  
  13. Instrument panel
  14.  
  15. Disconnect the steering member from each side of the body
  16.  
  17. Remove the front heater assembly with it attached to the steering member.
  18.  
  19. Remove the upper bracket from the heater assembly.
  20.  
  21. Remove the heater core cover.
  22.  
  23. Remove the heater core.
  24.  
  25. Installation is the reverse orders of removal.
  26.  

 
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