pressure INFINITI M35 2006 Factory Service Manual

INTAKE SENSOR
ATC-129
C
D
E
F
G
H
I
K
L
MA
B
AT C
Revision: 2006 January2006 M35/M45
INTAKE SENSORPFP:27723
Removal and InstallationNJS000H9
REMOVAL
1. Remove low-pressure pipe 1 and high-pressure pipe 2. Refer to ATC-162, "Removal and Installation of
Low-Pressure Pipe 1 and High-Pressure Pipe 2" .
CAUTION:
Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.
2. Slide evaporator to passenger side, and then remove intake
sensor.
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.
Mark the mounting position of intake sensor bracket prior to removal so that the reinstalled sen-
sor can be located in the same position.
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.
RJIA4103E

HEATER & COOLING UNIT ASSEMBLY
ATC-135
C
D
E
F
G
H
I
K
L
MA
B
AT C
Revision: 2006 January2006 M35/M45
HEATER & COOLING UNIT ASSEMBLYPFP:27110
Removal and InstallationNJS000HF
REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Drain coolant from cooling system. Refer to CO-11, "
Changing Engine Coolant" (VQ35DE) or CO-40,
"Changing Engine Coolant" (VK45DE).
3. Remove cowl top cover. Refer to EI-18, "
COWL TOP" .
4. Disconnect low-pressure flexible hose and high-pressure pipe 1
from evaporator.
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 the pipe with suitable material such
as vinyl tape to avoid the entry of air.
5. Remove electric throttle control actuator. Refer to EM-19,
"INTAKE MANIFOLD COLLECTOR" (VQ35DE) or EM-179,
"INTAKE MANIFOLD" (VK45DE).
6. Disconnect two heater hoses from heater core.
7. Remove instrument panel & pad. Refer to IP-10, "
INSTRUMENT PANEL ASSEMBLY" .
8. Remove blower unit. Refer to ATC-130, "
BLOWER UNIT" .
9. Remove clips of vehicle harness from steering member.
10. Remove mounting nuts and bolts, and then remove instrument stays.
RJIA4117E
RJIA4118E
RJIA4119E

ATC-138
HEATER & COOLING UNIT ASSEMBLY
Revision: 2006 January2006 M35/M45
Disassembly and AssemblyNJS000HG
1. Aspirator 2. Aspirator hose 3. Front heater duct (left)
4. Foot duct (left) 5. Ventilator door (left) 6. Ventilator door (right)
7. Foot duct (right) 8. Main link sub (right) 9. Ventilator door lever (right)
10. Ventilator door link (right) 11. Main link (right) 12. Mode door motor (passenger side)
13. Max. cool door link (right) 14. Air mix door motor (passenger side) 15. Intake sensor
16. Intake sensor bracket 17. Low-pressure pipe 1 18. High-pressure pipe 2
19. Expansion valve 20. Cooler pipe grommet 21. Insulator
22. Evaporator cover adapter 23. Air mix door (Slide door) 24. Clip
25. Heater & cooling unit case (left) 26. Heater pipe grommet 27. Heater core
28. Upper ventilator door motor 29. Air mix door motor (driver side) 30. Mode door motor (driver side)
31. Main link (left) 32. Main link sub (left) 33. Ventilator door lever (left)
34. Center case 35. Max. cool door lever (right) 36. Evaporator cover
RJIA4122E

REFRIGERANT LINES
ATC-155
C
D
E
F
G
H
I
K
L
MA
B
AT C
Revision: 2006 January2006 M35/M45
Removal and Installation of CompressorNJS000HO
REMOVAL
VQ35DE
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove air cleaner case and air duct. Refer to EM-17, "
AIR CLEANER AND AIR DUCT" .
3. Remove engine undercover, using power tools.
4. Remove mounting nuts from low-pressure flexible hose and
high-pressure flexible hose.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
5. Disconnect compressor (magnet clutch and ECV) connectors.
6. Remove A/C compressor belt. Refer to EM-15, "
DRIVE BELTS" .
7. Remove mounting bolts, and then remove damper bracket.
RJIA4153E
RJIA4155E
RJIA4157E

ATC-156
REFRIGERANT LINES
Revision: 2006 January2006 M35/M45
8. Remove mounting bolts from compressor, using power tools.
9. Remove compressor downward of the vehicle.
VK45DE
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove air cleaner case and air duct. Refer to EM-177, "
AIR CLEANER AND AIR DUCT" .
3. Remove engine undercover, using power tools.
4. Remove mounting nut between low-pressure flexible hose and low-pressure pipe. Refer to ATC-158,
"Removal and Installation of Low-Pressure Flexible Hose and Pipe" .
5. Remove mounting nuts from low-pressure pipe and high-pres-
sure flexible hose.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
6. Remove A/C compressor belt. Refer to EM-174, "
DRIVE BELTS" .
RJIA4158E
RJIA4152E
RJIA4154E

REFRIGERANT LINES
ATC-157
C
D
E
F
G
H
I
K
L
MA
B
AT C
Revision: 2006 January2006 M35/M45
7. Disconnect compressor (magnet clutch and ECV) connectors.
8. Remove mounting bolts from compressor, using power tools.
9. Remove compressor downward of the vehicle.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
Replace O-rings of low-pressure flexible hose, low-pressure pipe 1 (VK45DE) and high-pressure
flexible hose with new ones, and then apply compressor oil to it when installing it.
When recharging refrigerant, check for leaks.
Check Disc to Pulley ClearanceNJS000I7
Check clearance around entire periphery of clutch disc.
If specified clearance is not obtained, replace compressor.
RJIA4156E
Disc to pulley
clearance: 0.3 - 0.6 mm (0.012 - 0.024 in)
RHA087E

ATC-158
REFRIGERANT LINES
Revision: 2006 January2006 M35/M45
Removal and Installation of Low-Pressure Flexible Hose and PipeNJS000HP
REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove engine cover. Refer to EM-14, "
ENGINE ROOM COVER" (VQ35DE) or EM-173, "ENGINE
ROOM COVER" (VK45DE).
3. Remove air cleaner case and air duct. Refer to EM-17, "
AIR CLEANER AND AIR DUCT" (VQ35DE) or
EM-177, "
AIR CLEANER AND AIR DUCT" (VK45DE).
4. Remove cowl top cover. Refer to EI-18, "
COWL TOP" .
5. Remove mounting bolt from low-pressure flexible hose bracket.
6. Disconnect one-touch joint between low-pressure flexible hose
and low-pressure pipe 2.
a. Set a disconnector (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 the pipe with suitable material such
as vinyl tape to avoid the entry of air.
7. Remove mounting nut from low-pressure flexible hose
(VQ35DE).
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
8. Remove mounting nuts from low-pressure flexible hose and low-
pressure pipe (VK45DE).
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.
RJIA4159E
RJIA4160E
RJIA4162E
RJIA4161E

REFRIGERANT LINES
ATC-159
C
D
E
F
G
H
I
K
L
MA
B
AT C
Revision: 2006 January2006 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-14, "
ENGINE ROOM COVER" (VQ35DE) or EM-173, "ENGINE
ROOM COVER" (VK45DE).
3. Remove air cleaner case and air duct. Refer to EM-17, "
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 the pipe with suitable material such
as vinyl tape to avoid the entry of air.
6. Remove low-pressure pipe (VK45DE). Refer to ATC-158, "
Removal and Installation of Low-Pressure
Flexible 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 the pipe with suitable material such
as vinyl tape to avoid the entry of air.Low-pressure flexible hose bracket mounting bolt
: 4.2 Nꞏm (0.43 kg-m, 37 in-lb)
RJIA4163E
RJIA4164E
RJIA4166E

ATC-160
REFRIGERANT LINES
Revision: 2006 January2006 M35/M45
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
Replace O-rings of high-pressure flexible house 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-158, "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 Nꞏm (0.43 kg-m, 37 in-lb)
RJIA4163E
RJIA4167E

REFRIGERANT LINES
ATC-161
C
D
E
F
G
H
I
K
L
MA
B
AT C
Revision: 2006 January2006 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 the pipe 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 Nꞏm (0.43 kg-m, 37 in-lb)