blower motor rear INFINITI QX56 2008 Factory Owner's Guide

VTL-24
< ON-VEHICLE REPAIR >
MODE DOOR MOTOR
Rear Mode Door Motor - Rear Heater and Cooling Unit Assembly
Removal and InstallationINFOID:0000000001516617
FRONT MODE DOOR MOTOR
Removal
1. Remove the center console lower cover LH. Refer to IP-20, "Removal and Installation".
2. Disconnect the front mode door motor connector.
3. Remove the two screws and remove the front mode door motor.
Installation
Installation is in the reverse order of removal.
REAR MODE DOOR MOTOR
Removal
1. Remove the luggage side finisher RH. Refer to INT-19, "Removal and Installation".
2. Remove the rear heater and cooling unit assembly bolts and tilt the unit outward to access the rear mode
door motor.
3. Disconnect the rear mode door motor connector.
4. Remove the two screws and remove rear mode door motor.
Installation
Installation is in the reverse order of removal.
ALIIA0065ZZ
1. Variable blower control 2. Mode door motor3. Rear heater and cooling unit assembly
⇐ Front
Revision: March 2010 2008 QX56

VTL-26
< ON-VEHICLE REPAIR >
AIR MIX DOOR MOTOR
Rear Air Mix Door Motor - Rear Heater and Cooling Unit Assembly
Removal and InstallationINFOID:0000000001516619
FRONT AIR MIX DOOR MOTOR (DRIVER)
Removal
1. Remove the front heater and cooling unit assembly. Refer to VTL-16, "Removal and Installation".
2. Remove the steering member from the front heater and cooling unit assembly.
3. Disconnect the air mix door motor electrical connector.
4. Remove the three screws and remove the air mix door motor.
Installation
Installation is in the reverse order of removal.
FRONT AIR MIX DOOR MOTOR (PASSENGER)
Removal
1. Remove the center console lower cover LH. Refer to IP-12, "Removal and Installation".
2. Disconnect the air mix door motor electrical connector.
3. Remove the three screws and remove the air mix door motor.
Installation
Installation is in the reverse order of removal.
REAR AIR MIX DOOR MOTOR
Removal
1. Remove the luggage side lower finisher RH. Refer to INT-19, "Removal and Installation".
ALIIA0066ZZ
1. Air mix door motor2. Heater core 3. Blower motor
4. Variable blower control 5. Rear heater and cooling unit assembly ⇐Front
Revision: March 2010 2008 QX56

VARIABLE BLOWER CONTROLVTL-29
< ON-VEHICLE REPAIR >
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Rear Variable Blower Control - Rear Heater and Cooling Unit Assembly
Removal and InstallationINFOID:0000000001516621
FRONT VARIABLE BLOWER CONTROL
Removal
1. Remove the glove box assembly. Refer to IP-17, "Removal and Installation".
2. Disconnect the variable blower control electrical connector.
3. Remove the two screws and remove the variable blower control.
Installation
Installation is in the reverse order of removal.
REAR VARIABLE BLOWER CONTROL
Removal
1. Remove the luggage side finisher lower RH. Refer to INT-19, "Removal and Installation".
2. Disconnect the rear blower motor resistor electrical connector.
3. Remove the two screws and remove the rear blower motor resistor.
Installation
Installation is in the reverse order of removal.
ALIIA0066ZZ
1. Air mix door motor 2. Heater core 3. Blower motor
4. Variable blower control 5. Rear heater and cooling unit assembly ⇐Front
Revision: March 2010 2008 QX56

VTL-36
< ON-VEHICLE REPAIR >
REFRIGERANT LINES
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 EvaporatorINFOID:0000000001516625
Rear Heater and Cooling Unit Assembly
AWIIA0087ZZ
1. Front cover 2. Evaporator and heater core case 3. Evaporator
4. Side cover 5. Heater core6. Blower motor
7. Blower motor case 8. Variable blower control
Front
Revision: March 2010 2008 QX56

REFRIGERANT LINESVTL-37
< ON-VEHICLE REPAIR >
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REMOVAL
1. Remove the rear heater and cooling unit assembly from the vehicle. Refer to VTL-16, "Removal and
Installation".
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-33, "
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.
Removal and Installation for Rear Expansion ValveINFOID:0000000001516626
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 pi pes 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, th en 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".
Revision: March 2010
2008 QX56