INFINITI FX35 2008 Service Manual

ATC-106
< SERVICE INFORMATION >
INTAKE DOOR MOTOR
INTAKE DOOR MOTOR
Removal and InstallationINFOID:0000000001328209
REMOVAL
1. Remove blower unit. Refer to ATC-103.
2. Remove mounting screws, and then remove intake door motor from blower unit.
INSTALLATION
Installation is basically the reverse order of removal.
RJIA0947E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

IN-CABIN MICROFILTERATC-107
< SERVICE INFORMATION >
C
DE
F
G H
I
K L
M A
B
AT C
N
O P
IN-CABIN MICROFILTER
Removal and InstallationINFOID:0000000001328210
FUNCTION
Air inside passenger compartment is kept clean at either recircula-
tion or fresh mode by installing in-cabin microfilter into blower unit.
REPLACEMENT TIMING
Replace in-cabin microfilter.
Refer to MA-5, "
Schedule 1" in Schedule 1 and MA-7, "Schedule 2" in Schedule 2.
When replacing filter, affix a caution label inside the glove box.
REPLACEMENT PROCEDURES
1. Remove instrument passenger lower panel. Refer to IP-10.
2. Remove filter cover, and then remove in-cabin microfilter.
3. Take out in-cabin microfilter from blower unit.
4. Replace with new one and reinstall on blower unit.
5. Reinstall instrument passenger lower panel.
RJIA1331E
RJIA2040E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

ATC-108
< SERVICE INFORMATION >
HEATER & COOLING UNIT ASSEMBLY
HEATER & COOLING UNIT ASSEMBLY
Removal and InstallationINFOID:0000000001328211
REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Drain coolant from cooling system. Refer to CO-10, "
Changing Engine Coolant" (VQ35DE) or CO-37,
"Changing Engine Coolant" (VK45DE).
3. Remove cowl top cover. Refer to EI-23
.
4. Remove high-pressure pipe 2 mounting clip.
5. Remove low-pressure flexible hose bracket mounting bolt. Refer to ATC-128, "
Removal and Installation of
Low-Pressure Flexible Hose".
6. Disconnect low-pressure pipe 1 and high-pressure pipe 2 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 low- pressure pipe 1, 2 and high-
pressure pipe 2, 3 with suitab le material such as vinyl tape
to avoid the entry of air.
7. Remove electric throttle control actuator (VQ35DE). Refer to EM-19
.
8. Disconnect two heater hoses from heater core.
9. Remove instrument panel and pad. Refer to IP-10
.
10. Remove blower unit. Refer to ATC-103
.
RJIA2037E
RJIA2077E
RJIA2041E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

HEATER & COOLING UNIT ASSEMBLYATC-109
< SERVICE INFORMATION >
C
DE
F
G H
I
K L
M A
B
AT C
N
O P
11. Remove mounting nuts and bolts, and then remove instrument stays (left and right side).
12. Remove mounting bolts from heater & cooling unit assembly.
13. Disconnect drain hose.
14. Remove center and side ventilator ducts, defroster nozzle and side defroster ducts. Refer to ATC-116,
"Removal and Installation".
15. Remove steering column mounting bolts and nut.
16. Remove steering member mounting bolts, nut and harness clips.
17. Remove steering member, and then remove heater & cooling unit assembly.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
 Replace O-rings of low-pressure pipe 1 and high- pressure pipe 2 with new ones, and then apply
compressor oil to it when installing it.
 Female-side piping c onnection 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 comple ted, pull male-side piping by hand to make sure that connection
does not come loose.
 When recharging refrigerant, check for leaks.
RJIA2042E
SJIA1223E
SJIA1656E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

ATC-110
< SERVICE INFORMATION >
HEATER & COOLING UNIT ASSEMBLY
NOTE:
 When filling radiator with coolant, refer to CO-10, "
Changing Engine Coolant" (VQ35DE) or CO-37, "Chang-
ing Engine Coolant" (VK45DE).
 Recharge the refrigerant.
Heater & cooling unit assembly mounting bolt: 6.8 N·m (0.69 kg-m, 60 in-lb)
Steering member mounting nut and bolt : 12 N·m (1.2 kg-m, 9 fl-lb)
Steering column mounting nut and bolt : 16.7 N·m (1.7 kg-m, 12 fl-lb)
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

HEATER & COOLING UNIT ASSEMBLYATC-111
< SERVICE INFORMATION >
C
DE
F
G H
I
K L
M A
B
AT C
N
O P
Disassembly and AssemblyINFOID:0000000001328212
1. Heater pipe grommet 2. Heater core 3. Heater pipe cover
4. Aspirator 5. Aspirator hose 6. Air mix door motor (driver side)
7. Air mix door (slide door) 8. Max. cool door link 9. Max. cool door lever
10. Ventilator door lever 11. Ventilator door link 12. Air mix door motor (passenger side)
13. Intake sensor bracket 14. Intake sensor 15. Foot duct (right)
16. Evaporator cover 17. Evaporator cover adaptor 18. Heater pipe bracket
19. Insulator 20. Heater case (right) 21. Low-pressure pipe 2
22. O-ring 23. High-pressure pipe 3 24. Expansion valve
PJIA0157E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

ATC-112
< SERVICE INFORMATION >
HEATER & COOLING UNIT ASSEMBLY
25. Evaporator 26. Heater case (left) 27. Foot duct (left)
28. Center case 29. Max. cool door (left) 30. Ventilator door
31. Side link 32. Mode door motor 33. Defroster door
34. Max. cool door (right) 35. Defroster door lever 36. Defroster door link
: N·m (kg-m, in-lb)
: Always replace after every disassembly.
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

MODE DOOR MOTORATC-113
< SERVICE INFORMATION >
C
DE
F
G H
I
K L
M A
B
AT C
N
O P
MODE DOOR MOTOR
Removal and InstallationINFOID:0000000001328213
REMOVAL
1. Remove blower unit. Refer to ATC-103.
2. Remove mounting screws, and then remove mode door motor.
3. Disconnect mode door motor connector.
INSTALLATION
Installation is basically the reverse order of removal.
RJIA0954E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

ATC-114
< SERVICE INFORMATION >
AIR MIX DOOR MOTOR
AIR MIX DOOR MOTOR
Removal and InstallationINFOID:0000000001328214
REMOVAL
Driver Side
1. Set the temperature control switch (driver side) at 18°C (60 °F), and then disconnect the battery cable from
the negative terminal.
2. Remove instrument driver lower panel. Refer to IP-10
.
3. Remove mounting screws, and then remove air mix door motor.
4. Disconnect air mix door motor connector.
Passenger Side
1. Set the temperature control switch (passenger side) at 18 °C (60 °F), and then disconnect the battery cable
from the negative terminal.
2. Remove blower unit. Refer to ATC-103
.
3. Remove mounting screws, and then remove air mix door motor.
4. Disconnect air mix door motor connector.
INSTALLATION
Installation is basically the reverse order of removal.
RJIA0956E
RJIA0955E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

HEATER COREATC-115
< SERVICE INFORMATION >
C
DE
F
G H
I
K L
M A
B
AT C
N
O P
HEATER CORE
Removal and InstallationINFOID:0000000001328215
REMOVAL
1. Remove heater & cooling unit assembly. Refer to ATC-108.
2. Remove foot duct (left). Refer to ATC-116, "
Removal and Installation".
3. Remove mounting screws, and then remove heater pipe cover.
4. Remove heater pipe bracket.
5. Slide heater core (shown in the figure) to driver side.
INSTALLATION
Installation is basically the reverse order of removal.
RJIA2046E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C