Infiniti QX56 (JA60). Manual — part 996
EVAPORATOR
VTL-19
< ON-VEHICLE REPAIR >
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EVAPORATOR
Removal and Installation for Front Evaporator
INFOID:0000000005147626
Front Heater and Cooling Unit Assembly
REMOVAL
1. Remove the front heater core. Refer to
VTL-24, "Removal and Installation"
.
AWIIA0086ZZ
1.
Heater core cover
2.
Heater core pipe bracket
3.
Heater core
4.
Upper bracket
5.
Upper heater and cooling unit case
6.
A/C evaporator
7.
Lower heater and cooling unit case
8.
Blower motor
9.
Variable blower control
Front
VTL-20
< ON-VEHICLE REPAIR >
EVAPORATOR
2. Remove the defroster mode door arm.
3. Separate the heater core and cooling unit case.
4. Remove the evaporator.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• Replace the O-rings on the A/C refrigerant pipes with new ones, then apply compressor oil to them
when installing them.
• After charging the refrigerant, check for leaks.
Removal and Installation for Rear Evaporator
INFOID:0000000005147627
Rear Heater and Cooling Unit Assembly
AWIIA0087ZZ
1.
Front cover
2.
Evaporator and heater core case
3.
Evaporator
4.
Side cover
5.
Heater core
6.
Blower motor
7.
Blower motor case
8.
Variable blower control
Front
EVAPORATOR
VTL-21
< ON-VEHICLE REPAIR >
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REMOVAL
1. Remove the rear heater and cooling unit assembly from the vehicle. Refer to
.
2. Remove the blower motor.
3. Remove the variable blower control.
4. Remove the air mix door motor.
5. Remove the mode door motor.
6. Remove the rear duct and mode door assembly. Refer to
VTL-36, "Removal and Installation"
.
7. Disassemble the rear heater and cooling unit assembly to remove the evaporator.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• Replace the O-rings on the rear A/C pipes with new ones. Apply compressor oil to the O-rings when
installing them.
• After charging the refrigerant, check for leaks.
VTL-22
< ON-VEHICLE REPAIR >
EXPANSION VALVE
EXPANSION VALVE
Removal and Installation for Rear Expansion Valve
INFOID:0000000005147628
REMOVAL
1. Discharge the refrigerant. Refer to
HA-20, "HFC-134a (R-134a) Service Procedure"
.
2. Remove the luggage side finisher lower (RH). Refer to
INT-19, "Removal and Installation"
.
3. Disconnect the A/C refrigerant pipes from the expansion valve.
CAUTION:
Cap or wrap the A/C refrigerant pipe ends with a suitable material such as vinyl tape to avoid the
entry of air and contaminants.
4. Remove the expansion valve.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• Replace the O-rings on the A/C refrigerant pipes with new ones, then apply compressor oil to them
when installing them.
• After charging the refrigerant, check for leaks.
Expansion valve bolts
: 4 N·m (0.41 kg-m, 35 in-lb)
A/C refrigerant pipe to expansion valve bolt
: Refer to
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