GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Daewoo 🢒 2008 🢒 W200 🢒 HVAC 🢒 Heating, Ventilation, and Air Conditioning 🢒 HVAC Module Assembly Replacement

HVAC Module Assembly Replacement LHD

Tools Required

Electronic Leak Detector.

Removal Procedure

    Caution: Refer to Safety Glasses Caution in the Preface section.

  1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  2. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
  3. Drain the cooling system. Refer to Cooling System Draining and Filling .
  4. Remove the instrument panel (I/P) pad. Refer to Instrument Panel Upper Trim Pad Replacement
  5. Remove the instrument panel carrier. Refer to Instrument Panel Carrier Replacement
  6. Remove the instrument panel centre support bracket. Refer to Instrument Panel Retainer Replacement .
  7. Disconnect the HVAC module assembly electrical connector.

    8. Object Number: 1950865 Size: SH
  8. Mark and remove the heater hoses (1) from the heater core pipes.
  9. Remove the suction hose from the thermal expansion valve. Refer to Suction Hose Replacement .

    10. Object Number: 1955612 Size: SH
  10. Remove the three HVAC mounting screws (1) in the engine bay.

    11. Object Number: 1955622 Size: SH
  11. Remove the HVAC module assembly mounting screws (1) in the cabin.
  12. Remove the HVAC module assembly from the vehicle.

Installation Procedure

    Important: Ensure the drain pipe docks with the drain assembly.

  1. Install the HVAC module assembly to the vehicle.

    2. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1955612 Size: SH
  2. Install the screws from inside the vehicle which secure the HVAC module assembly.

    3. Tighten
    Tighten the nuts to 9N·m (80 lb in).


    Object Number: 1955622 Size: SH
  3. Install the screws from the engine compartment which secure the HVAC module assembly.

    4. Tighten
    Tighten the nuts to 7N·m (62 lb in).

  4. Install the suction hose to the thermal expansion valve. Refer to Suction Hose Replacement .

    5. Object Number: 1950865 Size: SH
  5. Install the heater hoses to the heater core pipes.
  6. Install the instrument panel support bracket. Refer to Instrument Panel Retainer Replacement
  7. Install the instrument panel carrier. Refer to Instrument Panel Carrier Replacement
  8. Install the instrument panel (I/P) pad. Refer to Instrument Panel Upper Trim Pad Replacement
  9. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
  10. Fill the cooling system. Refer to Cooling System Draining and Filling .
  11. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  12. Leak test the fittings of the component using electronic leak detector.