Removal and Installation

HVAC Unit Removal and Installation

HVAC Unit Components

NOTE:

Evaporator fins can easily be bent during removal and installation of the HVAC unit.

Remove and install the HVAC unit carefully so as not to damage the evaporator fins. If any of them is bent, straighten it using a flat head screwdriver or a pair of pliers.

Removal

1) Disconnect negative (-) cable at battery.
2) Disable air bag system referring to Disabling Air Bag System Disabling Air Bag System:Advanced Air Bag or Disabling Air Bag System Disabling Air Bag System:Except Advanced Air Bag.
3) Recover refrigerant from A/C system using recovery and recycling equipment referring to "Recovery" in Service and Repair Operation Procedure for Charging A/C with Refrigerant.
4) Drain engine coolant and disconnect heater hoses (1) from HVAC unit.
5) Disconnect suction hose (2) and condenser outlet hose (3) by removing attaching bolt (4).






6) Remove instrument panel referring to Service and Repair Instrument Panel Removal and Installation.
7) Disconnect rear duct from HVAC unit.
8) Detach wiring, connectors and clamps from HVAC unit.
9) Remove HVAC unit (1).






Installation

1) Install HVAC unit by reversing removal procedure, noting the following items.
- When installing each part, be careful not to catch any wiring harness.
- Replenish compressor with�specified amount of compressor oil from suction side referring to Precautions on Replenishing Compressor Oil Precautions on Replenishing Compressor Oil.
- Install padding (1) to installation hole uniformly.





- Fill radiator with engine coolant.
- Enable air bag system referring to Enabling Air Bag System Enabling Air Bag System:Advanced Air Bag or Enabling Air Bag System Enabling Air Bag System:Except Advanced Air Bag.
- Evacuate and charge system. Refer to Service and Repair Operation Procedure for Charging A/C with Refrigerant.