2008 INFINITI FX35 cooling

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)
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HEATER & COOLING UNIT ASSEMBLYATC-111
< SERVICE INFORMATION >
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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
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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.
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HEATER COREATC-115
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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.
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ATC-118
< SERVICE INFORMATION >
DUCTS AND GRILLES
4. Remove mounting clips, and then remove rear ventilator duct 3.
5. Remove instrument panel and pad. Refer to IP-10
.
6. Remove rear ventilator duct 1 with center floor duct attached.
7. Remove rear ventilator duct 1 from center floor duct.
Removal of Foot Ducts
1. Remove heater & cooling unit assembly. Refer to ATC-108.
2. Remove mounting screws, and then remove air mix door motor (right), mode door motor, evaporator cover and foot duct (right).
3. Remove foot duct (left).
Removal of Floor Ducts
1. Remove floor carpet. Refer to EI-41.
2. Remove mounting clips, and then remove side floor ducts.
3. Remove instrument panel and pad. Refer to IP-10
.
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REFRIGERANT LINESATC-121
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ComponentINFOID:0000000001328218
Refer to AT C - 5 , "Precaution for Refrigerant Connection".
*1AT C - 2 2 , "Maintenance of Lubricant
Quantity in Compressor"
*2ATC-138, "Checking of Refrigerant
Leaks"
*3 ATC-139, "Electrical Leak Detector"
*4AT C - 7 5 , "Insufficient Cooling"*5AT C - 4 , "Precaution for Working with
HFC-134a (R-134a)"
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ATC-124
< SERVICE INFORMATION >
REFRIGERANT LINES
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-17
(VQ35DE) or EM-173 (VK45DE).
3. Remove front engine undercover, using power tools.
4. Remove cooling fan shroud (lower). Refer to CO-40
(VK45DE).
5. Remove mounting nuts from low-pressure flexible hose and high-pressure flexible hose.
CAUTION:
Cap or wrap the joint of co mpressor, low-pressure flexible
hose and high-pressure flexibl e hose with suitable material
such as vinyl tape to avoid the entry of air.
6. Remove high-pressure flexible hose. Refer to ATC-129,
"Removal and Installation of High-pressure Flexible Hose"
(VK45DE).
7. Disconnect compressor connector.
8. Remove A/C compressor belt. Refer to EM-15, "
Removal and Installation" (VQ35DE) or EM-170,
"Removal and Installation" (VK45DE).
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REFRIGERANT LINESATC-135
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Be sure to clean carefully.
4. Remove liquid tank and power steering oil cooler mounting bolts.
5. Lift liquid tank bracket upward. Remove liquid tank bracket from protruding part of condenser.
6. Slide liquid tank upward, and then remove liquid tank.
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 condenser pipe with new ones, and then
apply compressor oil to it when installing it.
 When recharging refrigerant, check for leaks.
Removal and Installation of CondenserINFOID:0000000001328227
REMOVAL
1. Use a refrigerant collecting equipment (f or HFC-134a) to discharge the refrigerant.
2. Remove cooling fan. Refer to CO-48
(VK45DE).
3. Remove radiator cooling fan assembly. Refer to CO-13
(VQ35DE).
4. Remove radiator shroud. Refer to CO-40
(VK45DE).
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