Infiniti Q45. Manual - part 140

REFRIGERANT LINES

ATC-155

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ATC

5.

Remove mounting bolt and nut, and then remove high-pressure
flexible hose.

CAUTION:

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

INSTALLATION

Installation is basically the reverse order of removal.

CAUTION:

●

Replace O-rings of high-pressure flexible hose with new ones, and then apply compressor oil to it
when installing it.

●

When recharging refrigerant, check for leaks.

Removal and Installation of High-Pressure Pipe

NJS0009N

REMOVAL

1.

Remove engine cover and air cleaner cover, using power tools. Refer to 

EM-13, "ENGINE ROOM

COVER"

 .

2.

Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.

3.

Drain coolant from cooling system and disconnect heater hoses.
Refer to 

CO-8, "Changing Engine Coolant"

 .

4.

Remove tower bar, air cleaner assembly, air duct and air inlet
pipe. Refer to 

FSU-5, "FRONT SUSPENSION ASSEMBLY"

and 

EM-17, "AIR CLEANER AND AIR DUCT"

 .

5.

Remove vehicle harness from clip.

6.

Remove low-pressure flexible hose. Refer to 

ATC-153, "Removal and Installation of Low-Pressure Flexi-

ble Hose and Pipe"

 .

7.

Remove high-pressure flexible hose. Refer to 

ATC-154, "Removal and Installation of High-Pressure Flex-

ible Hose"

 .

RJIA1323E

RJIA0318E

RJIA0328E

ATC-156

REFRIGERANT LINES

8.

Remove high-pressure pipe from vehicle clips.

9.

Remove front grille, battery, battery tray and radiator mounting
bracket. Refer to 

EI-21, "FRONT GRILLE"

 , 

SC-4, "BATTERY"

and 

CO-11, "RADIATOR"

 .

10. Slide the radiator assembly to the right side of vehicle.

11. Remove mounting bolt from high-pressure pipe, and then

remove high-pressure pipe.

CAUTION:

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

INSTALLATION

Installation is basically the reverse order of removal.

CAUTION:

●

Replace O-rings of high-pressure pipe with new ones, and then apply compressor oil to it when
installing it.

●

When recharging refrigerant, check for leaks.

Removal and Installation of Refrigerant Pressure Sensor

NJS0009O

REMOVAL

1.

Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.

2.

Remove front grille. Refer to 

EI-21, "FRONT GRILLE"

 .

3.

Remove horn. Refer to 

WW-41, "HORN"

 .

4.

Disconnect connector, and then remove refrigerant pressure
sensor.

CAUTION:

●

Secure refrigerant pressure sensor installation pipe with an
open-end wrench. Be careful not to deform pipe during the
operation.

●

Be careful not to damage the core surface of the condenser
during the operation.

INSTALLATION

Installation is basically the reverse order of removal.

CAUTION:

●

Apply compressor oil to O-ring of the refrigerant pressure sensor when installing it.

●

When recharging refrigerant, check for leaks.

RJIA0329E

RJIA2695E

RJIA3089E

REFRIGERANT LINES

ATC-157

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Removal and Installation of Condenser

NJS0009P

REMOVAL

1.

Remove engine cover and air cleaner cover, using power tools. Refer to 

EM-13, "ENGINE ROOM

COVER"

 .

2.

Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.

3.

Remove air cleaner assembly, air duct and air inlet pipe. Refer to 

EM-17, "AIR CLEANER AND AIR

DUCT"

 .

4.

Disconnect high-pressure flexible hose and high-pressure pipe
from condenser.

CAUTION:

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

5.

Remove oil cooler pipe clips from left and right sides of con-
denser.

6.

Slide condenser up, and then remove it from radiator clip.

7.

Remove oil cooler from condenser (if equipped).

8.

Remove front grille, battery, battery tray and radiator mounting
bracket. Refer to 

EI-21, "FRONT GRILLE"

 , 

SC-4, "BATTERY"

and 

CO-11, "RADIATOR"

 .

9.

Remove cooling fan shroud. Refer to 

CO-18, "Removal and Installation"

 .

10. Remove mounting bolts from condenser.

11. Remove radiator from lower mount, move it toward engine side,

and then remove condenser between radiator and radiator core
support.

CAUTION:

Be careful not to damage the core surface of condenser and
radiator.

INSTALLATION

Installation is basically the reverse order of removal.

CAUTION:

●

Replace O-rings of high-pressure pipe and high-pressure
flexible hose with new ones, and then apply compressor oil
to it when installing it.

●

When recharging refrigerant, check for leaks.

RJIA0141E

RJIA2696E

RJIA0332E

RJIA0333E

ATC-158

REFRIGERANT LINES

Removal and Installation of Liquid Tank

NJS0009Q

REMOVAL

1.

Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.

2.

Remove air cleaner cover and front air guide. Refer to 

EM-17, "AIR CLEANER AND AIR DUCT"

 .

3.

Remove front grille. Refer to 

EI-21, "FRONT GRILLE"

 .

4.

Remove mounting screw, and then remove pipe securing
bracket.

5.

Remove liquid tank securing band mounting screw.

6.

Pull out liquid tank and liquid tank securing band through the
upward.

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.

●

When recharging refrigerant, check for leaks.

SJIA0132J

1.

Liquid tank

2.

Liquid tank securing band

3.

Screw

4.

Pipe securing bracket

5.

Screw

6.

O-ring

7.

Condenser

8.

Refrigerant pressure sensor

SJIA0133E