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Home >> Chrysler >> 2009 >> 300 Signature Series >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> HVAC System (Service Information) >> Distribution >> Housing, HVAC >> Installation >> Housing-HVAC Assembly

Housing-HVAC Assembly

NOTE: The HVAC housing must be removed from the vehicle and disassembled for service of the A/C evaporator.
NOTE: LHD model shown in illustrations. RHD model similar.
Fig 1: Housing-HVAC-Interior Removal & Installation
GC0096064Courtesy of CHRYSLER LLC
  1. Position the HVAC housing (2) into the passenger compartment with the mounting studs in their proper locations in the dash panel (5) and the condensate drain tube into the grommet (4) on the floor panel (3).
  2. Install the two nuts (1) that secure the HVAC housing to the passenger compartment side of the dash panel. Tighten the nuts to 3 N.m (26 in. lbs.).
  3. Install the defroster ducts. See Heating and Air Conditioning/Distribution/DUCT, Defroster - Installation .
  4. Connect the floor distribution ducts. See Heating and Air Conditioning/Distribution/DUCT, Floor Distribution - Installation .
  5. Connect the floor console duct. See Heating and Air Conditioning/Distribution/DUCT, Floor Console - Installation .
  6. Install the instrument panel. Refer to Body/Instrument Panel/PANEL, Instrument - Installation .
    Fig 2: Housing-HVAC-Exterior Removal & Installation
    GC0081036Courtesy of CHRYSLER LLC
  7. Install the three nuts (1 and 3) that secure the HVAC housing to the engine compartment side of the dash panel (2). Tighten the nuts to 7 N.m (62 in. lbs.).
  8. Connect the heater hoses to the heater core tubes.
  9. Connect the A/C suction line and A/C liquid line to the A/C evaporator. See Heating and Air Conditioning/Plumbing/LINE, A/C Liquid - Installation .
  10. Install the fresh air inlet housing to the engine compartment side of the dash panel. See Heating and Air Conditioning/Distribution/HOUSING, HVAC - Installation .
  11. Reconnect the negative battery cable.
  12. If the heater core is being replaced, flush the cooling system. Refer to Cooling - Standard Procedure .
  13. Refill the engine cooling system. Refer to Cooling - Standard Procedure .
  14. Evacuate the refrigerant system. See Heating and Air Conditioning/Plumbing - Standard Procedure .
  15. Charge the refrigerant system. See Heating and Air Conditioning/Plumbing - Standard Procedure .
  16. Initiate the Actuator Calibration function using a scan tool. Refer to DTC-Based Diagnostics/HVAC - Standard Procedure .
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