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ATC-158
REFRIGERANT LINES
Revision: 2007 April2007 M35/M45
CAUTION:
Replace O-rings of low-pressure flexible hose and low-pressure pipe (VK45DE) with new ones,
and then apply compressor oil to it when installing it.
Female-side piping connection is thin and easy to deform. Slowly insert the male-side piping
straight in axial direction.
Insert piping securely until a click is heard.
After piping connection is completed, pull male-side piping by hand to make sure that connection
does not come loose.
When recharging refrigerant, check for leaks.
Removal and Installation of High-pressure Flexible HoseNJS000HQ
REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove engine cover. Refer to EM-15, "
ENGINE ROOM COVER" (VQ35DE) or EM-173, "ENGINE
ROOM COVER" (VK45DE).
3. Remove air cleaner case and air duct. Refer to EM-19, "
AIR CLEANER AND AIR DUCT" (VQ35DE) or
EM-177, "
AIR CLEANER AND AIR DUCT" (VK45DE).
4. Remove mounting bolt from high-pressure flexible hose bracket.
5. Disconnect one-touch joint between high-pressure flexible hose
and condenser.
a. Set a disconnector (SST: 9253089912) on A/C piping.
b. Slide a disconnector backward until it clicks.
c. Slide A/C piping backward and disconnect it.
CAUTION:
Cap or wrap the joint of condenser and high-pressure flexi-
ble hose with suitable material such as vinyl tape to avoid
the entry of air.
6. Remove low-pressure pipe (VK45DE). Refer to ATC-157, "
Removal and Installation of Low-pressure Flex-
ible Hose and Pipe" .
7. Remove mounting nut from high-pressure flexible hose, and
then remove high-pressure flexible hose.
CAUTION:
Cap or wrap the joint of compressor and high-pressure flex-
ible hose with suitable material such as vinyl tape to avoid
the entry of air.Low-pressure flexible hose bracket mounting bolt
: 4.2 N·m (0.43 kg-m, 37 in-lb)
RJIA4163E
RJIA4164E
RJIA4166E
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REFRIGERANT LINES
ATC-159
C
D
E
F
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H
I
K
L
MA
B
AT C
Revision: 2007 April2007 M35/M45
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.
Female-side piping connection is thin and easy to deform. Slowly insert the male-side piping
straight in axial direction.
Insert piping securely until a click is heard.
After piping connection is completed, pull male-side piping by hand to make sure that connection
does not come loose.
When recharging refrigerant, check for leaks.
Removal and Installation of High-pressure Pipe 1 (Engine Compartment)NJS000HR
REMOVAL
1. Remove low-pressure flexible hose. Refer to ATC-157, "Removal and Installation of Low-pressure Flexi-
ble Hose and Pipe" .
2. Remove mounting bolt from high-pressure flexible hose bracket.
3. Remove high-pressure pipe 1 from vehicle clips.
4. Disconnect one-touch joints of high-pressure pipe 1.
a. Set a disconnector (SST: 9253089908) on A/C piping.
RJIA4165E
High-pressure flexible hose bracket mounting bolt
: 4.2 N·m (0.43 kg-m, 37 in-lb)
RJIA4163E
RJIA4167E
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ATC-160
REFRIGERANT LINES
Revision: 2007 April2007 M35/M45
b. Slide a disconnector toward (or upward) vehicle front until it clicks.
c. Slide A/C piping toward (or upward) vehicle front and disconnect it.
CAUTION:
Cap or wrap the joint of condenser, evaporator and high-pressure pipe 1 with suitable material
such as vinyl tape to avoid the entry of air.
5. Remove high-pressure pipe 1.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
Replace O-rings of high-pressure pipe 1 with new ones, and then apply compressor oil to it when
installing it.
Female-side piping connection is thin and easy to deform. Slowly insert the male-side piping
straight in axial direction.
Insert piping securely until a click is heard.
After piping connection is completed, pull male-side piping by hand to make sure that connection
does not come loose.
When recharging refrigerant, check for leaks.
RJIA4168E
High-pressure flexible hose bracket mounting bolt
: 4.2 N·m (0.43 kg-m, 37 in-lb)
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REFRIGERANT LINES
ATC-161
C
D
E
F
G
H
I
K
L
MA
B
AT C
Revision: 2007 April2007 M35/M45
Removal and Installation of Low-pressure Pipe 1 and High-pressure Pipe 2NJS000HS
REMOVAL
1. Set the temperature control switch (passenger side) at 18°C (60°F), and then disconnect the battery cable
from the negative terminal.
2. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
3. Remove cowl top cover. Refer to EI-18, "
COWL TOP" .
4. Remove mounting bolt from low-pressure flexible hose bracket.
5. Remove high-pressure pipe 1 from vehicle clip.
6. Disconnect one-touch joints.
a. Set a disconnector [high-pressure side (SST: 9253089908), low-
pressure side (SST: 9253089916)] on A/C piping.
b. Slide a disconnector toward vehicle front until it clicks.
c. Slide A/C piping toward vehicle front and disconnect it.
CAUTION:
Cap or wrap the joint of low-pressure flexible hose, low-
pressure pipe 1 and high-pressure pipe 1, 2 with suitable
material such as vinyl tape to avoid the entry of air.
7. Remove instrument passenger lower panel and glove box. Refer
to IP-10, "
INSTRUMENT PANEL ASSEMBLY" .
8. Remove foot grille (right). Refer to ATC-148, "
Removal of Foot Grilles" .
9. Remove air mix door motor (passenger side). Refer to ATC-140, "
AIR MIX DOOR MOTOR" .
10. Remove mode door motor (passenger side). Refer to ATC-139, "
MODE DOOR MOTOR" .
11. Remove main link (right) and max. cool door link (right). Refer to ATC-134, "
HEATER & COOLING UNIT
ASSEMBLY" .
12. Remove mounting screws, and then remove evaporator cover.
RJIA4169E
RJIA4117E
RJIA4170E
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ATC-162
REFRIGERANT LINES
Revision: 2007 April2007 M35/M45
13. Remove mounting bolt, and then remove low-pressure pipe 1
and high-pressure pipe 2.
CAUTION:
Cap or wrap the joint of expansion valve with suitable mate-
rial such as vinyl tape to avoid the entry of air.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
Replace O-rings of low-pressure flexible hose, low-pressure pipe 1 and high-pressure pipe 1, 2
with new ones, and then apply compressor oil to it when installing it.
Female-side piping connection is thin and easy to deform. Slowly insert the male-side piping
straight in axial direction.
Insert piping securely until a click is heard.
After piping connection is completed, pull male-side piping by hand to make sure that connection
does not come loose.
When recharging refrigerant, check for leaks.
RJIA4171E
Low-pressure flexible hose bracket mounting bolt
: 4.2 N·m (0.43 kg-m, 37 in-lb)
Page 614 of 4647
REFRIGERANT LINES
ATC-163
C
D
E
F
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H
I
K
L
MA
B
AT C
Revision: 2007 April2007 M35/M45
Removal and Installation of Liquid TankNJS000HT
DISASSEMBLY AND ASSEMBLY
REMOVAL
1. Remove condenser. Refer to ATC-164, "Removal and Installation of Condenser" .
2. Clean liquid tank and its surrounding area, and remove dust and rust from liquid tank.
CAUTION:
Be sure to clean carefully.
3. Remove mounting bolts from liquid tank.
4. Lift liquid tank bracket upward. Remove liquid tank bracket from
protruding part of condenser.
5. Slide liquid tank upward, and then remove liquid tank.
1. Condenser 2. Liquid tank bracket 3. Refrigerant pressure sensor
4. Liquid tank 5. Bracket (liquid tank side) 6. Bracket (condenser side)
7. O-ring 8. Inside pipe 9. Outside pipe
: N·m (kg-m, in-lb)
: Always replace after every disassembly.
PJIA0164E
SJIA1792E
RJIA1440E
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ATC-164
REFRIGERANT LINES
Revision: 2007 April2007 M35/M45
INSTALLATION
Install liquid tank, and then install liquid tank bracket on condenser.
CAUTION:
Make sure liquid tank bracket is securely installed at protru-
sion of condenser. (Make sure liquid tank bracket does not
move to a position below center of liquid tank.)
Replace O-rings of liquid tank pipe (inside pipe and outside
pipe) with new ones, and then apply compressor oil to it
when installing it.
When recharging refrigerant, check for leaks.
Removal and Installation of CondenserNJS000HU
REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove engine cover. Refer to EM-15, "
ENGINE ROOM COVER" (VQ35DE) or EM-173, "ENGINE
ROOM COVER" (VK45DE).
3. Remove air cleaner case, air hose and air duct. Refer to EM-19, "
AIR CLEANER AND AIR DUCT"
(VQ35DE) or EM-177, "AIR CLEANER AND AIR DUCT" (VK45DE).
4. Remove front grille. Refer to EI-16, "
FRONT GRILLE" .
5. Remove radiator fan shroud with cooling fan (VK45DE). Refer to CO-51, "
COOLING FAN" .
6. Remove mounting clips and bolts, and then remove bracket.
7. Remove radiator upper mount, move radiator and condenser to
the engine side.
8. Remove mounting bolt from high-pressure flexible hose bracket.
9. Remove high-pressure pipe1 from vehicle clip.
10. Disconnect high-pressure flexible hose from condenser.
a. Set a disconnector (SST: 9253089912) on A/C piping.
b. Slide a disconnector backward until it clicks.
c. Slide A/C piping backward and disconnect it.
CAUTION:
Cap or wrap the joint of condenser and high-pressure flexi-
ble hose with suitable material such as vinyl tape to avoid
the entry of air.
RJIA1441E
RJIA4173E
RJIA4174E
RJIA4164E
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REFRIGERANT LINES
ATC-165
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AT C
Revision: 2007 April2007 M35/M45
11. Disconnect high-pressure pipe 1 from condenser.
a. Set a disconnector (SST: 9253089908) on A/C piping.
b. Slide a disconnector upward until it clicks.
c. Slide A/C piping upward and disconnect it.
CAUTION:
Cap or wrap the joint of condenser and high-pressure pipe
1 with suitable material such as vinyl tape to avoid the entry
of air.
12. Disconnect refrigerant pressure sensor connector.
13. Disconnect hood rock switch connector.
14. Remove radiator reservoir tank. Refer to CO-14, "
RADIATOR"
(VQ35DE) or CO-43, "RADIATOR" (VK45DE).
15. Remove mounting screws from condenser.
16. Pull condenser forward at an angle. Remove condenser from
radiator.
CAUTION:
Be careful not to damage the core surface of condenser and
radiator.
RJIA4175E
RJIA4176E
RJIA4177E
RJIA4178E
RJIA4179E