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Home >> Chrysler >> 2009 >> 300 Signature Series >> Repair and Diagnosis >> External Pages >> Different car >> Section 219 (HVAC System (Service Information)) >> HVAC - Service Information >> Distribution >> Housing-HVAC >> Removal >> Housing-Air Distribution

Housing-Air Distribution

WARNING: This page is about a different car, the 2008 Dodge Magnum, 2008 Dodge Charger, and 2008 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
WARNING: Refer to the applicable warnings and cautions for this system before performing the following operation. See WARNING  and CAUTION . Failure to follow the warnings and cautions could result in possible personal injury or death.
WARNING: Disable the airbag system before attempting any steering wheel, steering column, or instrument panel component diagnosis or service. Disconnect and isolate the negative battery (ground) cable, then wait two minutes for the airbag system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to take the proper precautions could result in accidental airbag deployment and possible personal injury or death.
WARNING: The heater core tubes are not serviced separately from the heater core. The heater core tubes should not be repositioned, loosened or removed from the heater core. Failure to follow this warning could result in a coolant leak and possible personal injury or death.
NOTE: The air distribution housing must be removed from the HVAC housing and disassembled for service of the mode-air and blend-air doors.
NOTE: LHD model shown in illustrations. RHD model similar.
Fig 1: Removing/Installing HVAC Wire Harness-Actuators
GC0013954Courtesy of CHRYSLER LLC
  1. Disconnect and isolate the negative battery cable.
  2. Remove the HVAC housing assembly and place it on a suitable workbench. See HOUSING-HVAC .
  3. Disconnect the HVAC wire harness (1) from the mode door actuator (2) and the blend door actuator (3) located on the driver side of the air distribution housing (4).
  4. If equipped with dual zone heating-A/C, disconnect the HVAC wire harness from the blend door actuator (5) located on the passenger side of the air distribution housing.
    Fig 2: Heater Core R & I
    GC0056192Courtesy of CHRYSLER LLC
  5. On LHD models, remove the blend door actuator (1) from the driver side of the HVAC air distribution housing (2). See REMOVAL .
  6. Remove the two screws (8) that secure the flange (7) to the front of the HVAC housing near the dash panel and remove the flange.
  7. Remove the screw (5) that secures the heater core retaining bracket (3) to the driver side of the HVAC air distribution housing and remove the bracket.
  8. Disengage the heater core tubes (6) from the HVAC housing and carefully pull the heater core (4) straight out of the side of the air distribution housing.
    Fig 3: Removing Air Distribution Housing
    GC0013956Courtesy of CHRYSLER LLC
  9. Remove the two screws (1) that secure the air distribution housing (2) to the rear of the HVAC housing (3).
  10. Tilt the top of the air distribution housing rearward to disconnect the distribution housing from the tab-and-slot type retainers located at the bottom of the housing.
  11. Disconnect the air distribution housing from rear floor distribution ducts.
  12. Remove the air distribution housing from the vehicle.
  13. If required, disassemble the air distribution housing. See HOUSING-AIR DISTRIBUTION .
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