Operation CHARM: Car repair manuals for everyone.

Front HVAC Housing






HOUSING-HVAC

NOTE: LHD model shown in illustrations. RHD model similar.





1. If removed, install the HVAC housing air inlet duct (2) onto the passenger compartment side of the dash panel (1). Make sure the foam seal is not missing or damaged and that the retaining tabs are fully engage to the dash panel.





2. Position the HVAC housing assembly (2) to the dash panel (3). Be certain that the passenger side of the HVAC housing is correctly located over the dash panel mounting stud.
3. Install the nut (1) that secures the HVAC housing to the passenger compartment side of dash panel. Tighten the nut to 4.5 Nm (40 in. lbs.).
4. Install the condensation drain tube.
5. Install the rear floor ducts Floor Distribution Duct - Installation.
6. Install the instrument panel Instrument Panel - Installation.





7. Remove the previously installed plugs or caps and connect the heater hoses (4) to the heater core tubes.
8. Remove the tape or plugs from the refrigerant line fittings and the expansion valve ports.
9. Lubricate the rubber O-ring seals with clean refrigerant oil and install them onto the liquid and suction line fittings. Use only the specified O-ring seals as they are made of special materials compatible to the R-134a system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
10. Connect the A/C liquid and suction line assembly (2) to the A/C expansion valve (3).
11. Install the nut (1) that secures the A/C liquid and suction line assembly to the A/C expansion valve. Tighten the nut to 20 Nm (15 ft. lbs.).





12. If equipped, position the heat shield (3) onto the studs (1) located on the dash panel in the engine compartment and install the retaining nuts (2). Tighten the nuts to 1 Nm (10 in. lbs.).
13. Reconnect the negative battery cable.
14. If the heater core is being replaced, flush the cooling system Service and Repair.
15. Refill the engine cooling system Service and Repair.

CAUTION: Do NOT run the engine with a vacuum pump in operation or with a vacuum present within the A/C system when equipped with a variable displacement compressor. Failure to follow these instructions will result in serious A/C compressor damage.

16. Evacuate and charge the refrigerant system Refrigerant System Charge.
17. Initiate the Actuator Calibration function using a scan tool . Component Tests and General Diagnostics