Oil INFINITI QX56 2010 Factory Service Manual

REAR WINDOW GLASS AND MOLDINGGW-13
< ON-VEHICLE REPAIR >
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REAR WINDOW GLASS AND MOLDING
Removal and InstallationINFOID:0000000005147160
REMOVAL
1. Remove the rear spoiler. Refer to EXT-26, "Removal and Installation".
2. Disconnect the rear window def ogger electrical connectors.
3. Remove the rear glass stays.
4. Remove the hinge nuts and the rear glass assembly.
5. Remove the striker and handle.
6. Remove the rear glass hinges.
1. Back door assembly 2. Weatherstrip3. Rear glass stay RH, LH
4. Rear window hinge assembly RH, LH 5. Rear window glass handle
6. Rear window glass latch striker
7. Rear glass assembly : Medium strength Thread Locking
Sealant (Blue)
AWIIA0960GB
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HA-1
VENTILATION, HEATER & AIR CONDITIONER
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CONTENTS
HEATER & AIR CONDITIONING SYSTEM
PRECAUTION ....... ........................................3
PRECAUTIONS .............................................. .....3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
3
Precaution for Working with HFC-134a (R-134a) ......4
Precaution for Procedure without Cowl Top Cover ......4
Contaminated Refrigerant .........................................4
General Refrigerant Precaution ................................5
Precaution for Leak Detection Dye ...........................5
A/C Identification Label .............................................5
Precaution for Refrigerant Connection ......................5
Precaution for Service of Compressor ................ ....10
Precaution for Service Equipment ....................... ....10
PREPARATION ...........................................13
PREPARATION .............................................. ....13
Special Service Tool ........................................... ....13
HFC-134a (R-134a) Service Tool and Equipment ....13
Commercial Service Tool ........................................16
FUNCTION DIAGNOSIS ..............................17
REFRIGERATION SYSTEM .......................... ....17
Refrigerant Cycle ................................................ ....17
Refrigerant System Protection ................................17
OIL .................................................................. ....19
Maintenance of Oil in Compressor ...................... ....19
ON-VEHICLE MAINTENANCE ....................20
REFRIGERATION SYSTEM .......................... ....20
HFC-134a (R-134a) Service Procedure ..................20
OIL .................................................................. ....22
Maintenance of Oil Quantity in Compressor ....... ....22
FLUORESCENT LEAK DETECTOR ................24
Checking of Refrigerant Leaks ................................24
Checking System for Leaks Using the Fluorescent
Dye Leak Detector ............................................... ....
24
Dye Injection ............................................................24
ELECTRICAL LEAK DETECTOR ....................26
Checking of Refrigerant Leaks ................................26
Electronic Refrigerant Leak Detector ................... ....26
ON-VEHICLE REPAIR .................................29
REFRIGERATION SYSTEM .............................29
Component .......................................................... ....29
COMPRESSOR .................................................31
Removal and Installation for Compressor ...............31
Removal and Installation for Compressor Clutch ....32
LOW-PRESSURE FLEXIBLE HOSE ................36
Removal and Installation for Low-Pressure Flexi-
ble Hose .............................................................. ....
36
LOW-PRESSURE PIPE ....................................37
Removal and Installation for Low-Pressure Pipe .....37
Removal and Installation for Rear High- and Low-
Pressure A/C and Heater Core Pipes ......................
37
Removal and Installation for Underfloor Rear
High- and Low-Pressure A/C and Heater Core
Pipes ........................................................................
38
HIGH-PRESSURE FLEXIBLE HOSE ...............40
Removal and Installation for High-Pressure Flexi-
ble Hose ..................................................................
40
HIGH-PRESSURE PIPE ....................................41
Removal and Installation for High-Pressure Pipe ....41
Removal and Installation for Rear High- and Low-
Pressure A/C and Heater Core Pipes .................. ....
41
Removal and Installation for Underfloor Rear
High- and Low-Pressure A/C and Heater Core
Pipes ........................................................................
42
Revision: April 20092010 QX56

HA-4
< PRECAUTION >
PRECAUTIONS
5. When the repair work is completed, return the ignition switch to the ″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of a ll control units using CONSULT-III.
Precaution for Working with HFC-134a (R-134a)INFOID:0000000005147630
WARNING:
• CFC-12 (R-12) refrigerant and HFC-134a (R-134a) refr igerant are not compatible. If the refrigerants
are mixed compressor failure is likely to occur. Refer to HA-4, "
Contaminated Refrigerant". To deter-
mine the purity of HFC-134a (R-134a) in the vehicle and recovery tank, use recovery/recycling equip-
ment and refrigerant identifier.
• Use only specified oil for the HFC-134a (R-134a) A/C system and HFC-134a (R-134a) components. If
oil other than that specified is used, compressor failure is likely to occur.
• The specified HFC-134a (R-134a) oi l rapidly absorbs moisture from the atmosphere. The following
handling precautions must be observed:
- When removing refrigerant components from a vehicle, immediately cap (seal) the component to
minimize the entry of moisture from the atmosphere.
- When installing refrigerant co mponents to a vehicle, do not remove the caps (unseal) until just
before connecting the components. Connect all refrigerant loop components as quickly as possible
to minimize the entry of moisture into system.
- Only use the specified oil from a sealed container. Immediately reseal containers of oil. Without
proper sealing, oil will become moisture saturat ed and should not be used.
- Avoid breathing A/C refrigerant and oil vapor or mist. Exposure may irrita te eyes, nose and throat.
Remove HFC-134a (R-134a) from the A/C system usin g certified service equipment meeting require-
ments of SAE J2210 [HFC-134a (R-134a) recycling equipment], or J2209 [HFC-134a (R-134a) recovery
equipment]. If accidental system discharge occurs, ventilate work area before resuming service.
Additional health and safety in formation may be obtained from refrigerant and oil manufacturers.
- Do not allow A/C oil to come in contact with styrofoam parts. Damage may result.
Precaution for Procedure without Cowl Top CoverINFOID:0000000005147631
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
Contaminated RefrigerantINFOID:0000000005147632
If a refrigerant other than pure HFC-134a (R-134a) is identified in a vehicle, your options are:
• Explain to the customer that environmental regulations prohibit the release of contaminated refrigerant into
the atmosphere.
• Explain that recovery of the contaminated refri gerant could damage your service equipment and refrigerant
supply.
• Suggest the customer return the vehicle to the location of previous service where the contamination may have occurred.
• If you choose to perform the repair, recover the refrigerant using only dedicated equipment and contain- ers. Do not recover contamin ated refrigerant into your existing service equipment. If your facility does
not have dedicated recovery equipment, you may contact a local refrigerant product retailer for available ser-
vice. This refrigerant must be disposed of in acco rdance with all federal and local regulations. In addition,
replacement of all refrigerant system components on the vehicle is recommended.
• If the vehicle is within the warranty period, the air conditioner warranty is void. Please contact NISSAN Cus- tomer Affairs for further assistance.
PIIB3706J
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PRECAUTIONSHA-9
< PRECAUTION >
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*: Always check with the Parts Department for the latest parts information.
WARNING:
Make sure all refrigerant is discharged into the recycling equipment and the pressure in the system is
less than atmospheric pressure. Then gradually loo sen the discharge side hose fitting and remove it.
CAUTION:
When replacing or cleaning refrigerant cycle components, observe the following.
• When the compressor is removed, store it in the same position as it is when mounted on the car.
Failure to do so will cause oil to enter the low pressure chamber.
• When connecting tubes, always use a to rque wrench and a back-up wrench.
• After disconnecting tubes, immediately plug all op enings to prevent entry of dirt and moisture.
• When installing an air conditione r in the vehicle, connect the pipes as the final stage of the opera-
tion. Do not remove the seal caps of pipes and other components until just before required for con-
nection.
• Allow components stored in cool areas to warm to working area temperature before removing seal
caps. This prevents condensation from forming inside A/C components.
• Thoroughly remove moisture from the refrigeration system before charging the refrigerant.
• Always replace used O-rings.
• When connecting tube, apply oil to circle of the O-ri ngs shown in illustration. Be careful not to apply
oil to threaded portion.
Oil name: NISSAN A/C System Oil Type S or equivalent
• O-ring must be closely attached to dented portion of tube.
• When replacing the O-ring, be careful not to damage O-ring and tube.
• Connect tube until you hear it cl ick, then tighten the nut or bolt by hand until snug. Make sure that
the O-ring is installed to tube correctly.
• After connecting line, conduct leak test and make sure that there is no leakage from connections.
When the gas leaking point is f ound, disconnect that line and replace the O-ri ng. Then tighten con-
nections of seal seat to the specified torque.
Connec-
tion type O-ring
size Part number* D mm (in) W mm (in)
New 8 92471 N8210 6.8 (0.268) 1.85 (0.0728)
Former 10 J2476 89956 9.25 (0.3642) 1.78 (0.0701) New 1292472 N8210 10.9 (0.429) 2.43 (0.0957)
Former 92475 71L00 11.0 (0.433) 2.4 (0.094)
New 1692473 N8210 13.6 (0.535) 2.43 (0.0957)
Former 92475 72L00 14.3 (0.563) 2.3 (0.091)
New 1992474 N8210 16.5 (0.650) 2.43 (0.0957)
Former 92477 N8200 17.12 (0.6740) 1.78 (0.0701)
New 24 92195 AH300 21.8 (0.858) 2.4 (0.094)
SHA814E
Revision: April 20092010 QX56

HA-10
< PRECAUTION >
PRECAUTIONS
Precaution for Service of Compressor
INFOID:0000000005147637
• Plug all openings to prevent moisture and foreign matter from entering.
• When the compressor is removed, store it in th e same position as it is when mounted on the car.
• When replacing or repairing compressor, follow “Maintenance of Oil Quantity in Compressor”
exactly. Refer to HA-22, "
Maintenance of Oil Quantity in Compressor".
• Keep friction surfaces between clut ch and pulley clean. If the surface is contaminated with oil, wipe
it off by using a clean waste cloth moistened with thinner.
• After compressor service operation, turn the compressor shaft by ha nd more than 5 turns in both
directions. This will equally distribute oil inside the compressor. After the compressor is installed,
let the engine idle and oper ate the compressor for 1 hour.
• After replacing the compressor magnet clutch, apply voltage to the new one and check for normal
operation. Refer to HA-32, "
Removal and Installation for Compressor Clutch".
Precaution for Service EquipmentINFOID:0000000005147638
RECOVERY/RECYCLING EQUIPMENT
Follow the manufacturer's instructions for machi ne operation and machine maintenance. Never introduce any
refrigerant other than that specified into the machine.
ELECTRONIC LEAK DETECTOR
Follow the manufacturer's instructions for tester operation and tester maintenance.
VACUUM PUMP
1. Plug 2. O-ring A. Torque wrench
B. Apply oil C. Do not apply oil to threads D. NG (no good)
E. OK (okay) F. Inflated portion
WJIA1774E
Revision: April 20092010 QX56

PRECAUTIONSHA-11
< PRECAUTION >
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The oil contained inside the vacuum pump is not compatible with the
specified oil for HFC-134a (R-134a) A/C systems. The vent side of
the vacuum pump is exposed to atmospheric pressure so the vac-
uum pump oil may migrate out of the pump into the service hose.
This is possible when the pump is switched off after evacuation (vac-
uuming) and hose is connected to it.
To prevent this migration, use a manual valve situated near the
hose-to-pump connection, as follows.
• Usually vacuum pumps have a manual isolator valve as part of the
pump. Close this valve to isolate the service hose from the pump.
• For pumps without an isolator, use a hose equipped with a manual shut-off valve near the pump end. Close the valve to isolate the
hose from the pump.
• If the hose has an automatic shut off valve, disconnect the hose from the pump: as long as the hose is connected, the valve is open
and lubricating oil may migrate.
Some one-way valves open when vacuum is applied and close
under a no vacuum condition. Such valves may restrict the pump's
ability to pull a deep vacuum and are not recommended.
MANIFOLD GAUGE SET
Be certain that the gauge face indicates HFC-134a (R-134a or
134a). Make sure the gauge set has 1/2 ″-16 ACME threaded con-
nections for service hoses. Confirm the set has been used only with
refrigerant HFC-134a (R-134a) along with specified oil.
SERVICE HOSES
Be certain that the service hoses display the markings described
(colored hose with black stripe). All hoses must include positive shut-
off devices (either manual or aut omatic) near the end of the hoses
opposite the manifold gauge.
SERVICE COUPLERS
RHA270D
SHA533D
RHA272D
Revision: April 20092010 QX56

HA-12
< PRECAUTION >
PRECAUTIONS
Never attempt to connect HFC-134a (R-134a) service couplers to a
CFC-12 (R-12) A/C system. The HFC-134a (R-134a) couplers will
not properly connect to the CFC-12 (R-12) system. If an improper
connection is attempted, discharging and contamination may occur.
REFRIGERANT WEIGHT SCALE
Verify that no refrigerant other than HFC134a (R-134a) and specified
oils have been used with the scale. If the scale controls refrigerant
flow electronically, the hose fitting must be 1/2”-16 ACME.
CHARGING CYLINDER
Using a charging cylinder is not recommended. Refrigerant may be vented into air from cylinder's top valve
when filling the cylinder with refrigerant. Also, the accu racy of the cylinder is generally less than that of an
electronic scale or of quality recycle/recharge equipment.
Shut-off valve rotati on A/C service valve
Clockwise Open
Counterclockwise Close
RHA273D
RHA274D
Revision: April 20092010 QX56

PREPARATIONHA-13
< PREPARATION >
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PREPARATION
PREPARATION
Special Service ToolINFOID:0000000005147639
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
HFC-134a (R-134a) Service Tool and EquipmentINFOID:0000000005147640
Never mix HFC-134a (R-134a) refrigerant and/or the specified oil with CFC-12 (R-12) refrigerant and/or the
oil.
Separate and non-interchangeable service equipment must be used for handling each type of refrigerant/oil.
Refrigerant container fittings, service hose fittings and service equipment fittings (equipment which handles
refrigerant and/or oil) are different between CFC-12 (R-12) and HFC-134a (R-134a). This is to avoid mixed
use of the refrigerants/oil.
Adapters that convert one size fitting to another must never be used refrigerant/oil contamination will occur
and compressor failure will result.
Tool number
(Kent-Moore No.)
Tool name Description
—
(J-41425-NIS)
Aluminum tube repair kit Repairing leaks in A/C tubes
—
(J-38873-A)
Pulley installer Installing pulley
—
(J-44614)
Clutch disc holding tool Clutch disc holding tool
ALIIA0390ZZ
LHA171
WHA230
Revision: April 20092010 QX56

HA-14
< PREPARATION >
PREPARATION
Tool number
(Kent-Moore No.)
Tool nameDescription
HFC-134a (R-134a)
(—)
Refrigerant Container color: Light blue
Container marking: HFC-134a (R-
134a)
Fitting size: Thread size
• large container 1/2”-16 ACME
—
(—)
NISSAN A/C System Oil Type S Type: Poly alkylene glycol oil (PAG),
type S
Application: HFC-134a (R-134a)
swash plate compressors (NISSAN
only)
Lubricity: 40 m (1.4 US fl oz, 1.4 Imp
fl oz)
KV991J0130
(ACR2005-NI)
ACR5 A/C Service Center Refrigerant recovery, recycling and re-
charging
—
(J-41995)
Electronic refrigerant leak detector Power supply:
• DC 12V (battery terminal)
—
(J-43926)
Refrigerant dye leak detection kit
Kit includes:
(J-42220) UV lamp and UV safety
goggles
(J-41459) Refrigerant dye injector
(J-41447) quantity 24
HFC-134a (R-134a) refrigerant
dye
(J-43872) Refrigerant dye cleaner Power supply:
• DC 12V (battery terminal)
—
(J-42220)
Fluorescent dye leak detector Power supply:
• DC 12V (battery terminal)
For checking refrigerant leak when flu-
orescent dye is installed in A/C system.
Includes: UV lamp and UV safety gog-
gles
S-NT196
S-NT197
WJIA0293E
AHA281A
ZHA200H
SHA438F
Revision: April 20092010 QX56

HA-16
< PREPARATION >
PREPARATION
Commercial Service Tool
INFOID:0000000005147641
—
(J-39699)
Refrigerant weight scale For measuring of refrigerant
Fitting size-Thread size
• 1/2”-16 ACME
—
(J-39649)
Vacuum pump
(Including the isolator valve) Capacity:
• Air displacement: 4 CFM
• Micron rating: 20 microns
• Oil capacity: 482 g (17 oz)
Fitting size-Thread size
• 1/2”-16 ACME
Tool number
(Kent-Moore No.)
Tool name
Description
S-NT200
S-NT203
Tool name
Description
(J-41810-NI)
Refrigerant identifier equipment (R-
134a) For checking refrigerant purity and
system contamination
Power tool Loosening bolts, screws and nuts
RJIA0197E
PIIB1407E
Revision: April 20092010 QX56