Removal and Installation

HEATER & COOLING UNIT ASSEMBLY

Removal and Installation

REMOVAL

1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Drain coolant from cooling system. Refer to "Changing Engine Coolant".
3. Remove cowl top cover.




4. Disconnect low-pressure pipe 1 and high-pressure pipe 1 from evaporator.
a. Set a disconnector [High-pressure side (SST: 9253089908), Low-pressure side (SST: 9253089916)] on A/C piping.
b. Slide a disconnector toward vehicle front until it clicks.
c. Slide A/C piping toward vehicle front and disconnect it.

CAUTION: Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.

5. Remove electric throttle control actuator. Refer to "INTAKE MANIFOLD COLLECTOR".




6. Disconnect two heater hoses from heater core.
7. Remove instrument panel assembly. Refer to "Removal and Installation".
8. Remove blower unit.
9. Remove clips of vehicle harness from steering member.




10. Remove mounting nuts and bolts, and then remove instrument stays (driver side and passenger side).







11. Remove mounting bolts from heater & cooling unit assembly.
12. Disconnect drain hose.
13. Remove defroster nozzle and ventilator ducts.
14. Remove steering member, and then remove heater & cooling unit assembly.

INSTALLATION
Installation is basically the reverse order of removal.

CAUTION:
- Replace O-rings of A/C piping with new ones, and then apply compressor oil to it when installing it.
- Connection point for female-side piping is thin. So, when inserting male-side piping, take care not to deform female-side piping. Slowly insert in axial direction.
- Insert one-touch joint connection point securely until it clicks.
- After piping has been connected, pull male-side piping by hand to make sure piping does not come off.
- When recharging refrigerant, check for leaks.

NOTE:
- When filling radiator with coolant, refer to "Changing Engine Coolant".
- Recharge the refrigerant.

Heater & cooling unit mounting bolt : 6.9 N.m (0.7 kg-m, 61 in-lb)
Steering member mounting nut and bolt : 12 N.m (1.25 kg-m, 9 ft-lb)