Infiniti QX56 (JA60). Manual - part 996

EVAPORATOR

VTL-19

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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"

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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

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REMOVAL

1. Remove the rear heater and cooling unit assembly from the vehicle. Refer to 

VTL-17, "Removal and

Installation"

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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"

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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

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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"

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2. Remove the luggage side finisher lower (RH). Refer to 

INT-19, "Removal and Installation"

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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 

HA-29, "Component"

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