G37x Sedan AWD V6-3.7L (VQ37VHR) (2010)
Housing Assembly HVAC: Service and Repair
Removal and Installation
HEATER & COOLING UNIT ASSEMBLY
HEATER & COOLING UNIT ASSEMBLY HEATER & COOLING UNIT ASSEMBLY : Removal and Installation
REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Drain engine coolant from cooling system. Refer to See: Engine, Cooling and Exhaust/Cooling System/Coolant/Service and Repair/Draining.
3. Remove cowl top cover. Refer to See: Body and Frame/Cowl/Cowl Moulding / Trim/Service and Repair/Exploded View.
4. Disconnect one-touch joint between low-pressure pipe 1 (1) and low-pressure pipe 2 (2) with disconnector (A) (SST: J-45185).
CAUTION:
Cap or wrap the joint of the A/C piping with suitable material such as vinyl tape to avoid the entry of air.
5. Disconnect one-touch joint between high-pressure pipe 1 (3) and high-pressure pipe 2 (4) with disconnector (SST: J-45815).
CAUTION:
Cap or wrap the joint of the A/C piping with suitable material such as vinyl tape to avoid the entry of air.
6. Remove clamp (A), and then disconnect heater hoses (1).
7. Remove instrument panel assembly. Refer to .
8. Remove blower unit. Refer to See: Blower Motor/Service and Repair/Exploded View.
9. Remove clips of vehicle harness from steering member.
10. Remove instrument stay (left and right).
11. Remove drain hose.
12. Remove mounting bolts (A) from heater & cooling unit assembly
(1).
13. Remove front defroster nozzle, side defroster nozzles and ventilator duct. Refer to See: Air Duct/Service and Repair/Exploded View.