2008 INFINITI QX56 transmission

PERIODIC MAINTENANCEMA-11
< ON-VEHICLE MAINTENANCE >
C
DE
F
G H
I
J
K L
M B
MA
N
O A
Abbreviations: R = Replace. I = Inspect. Correct or replace if necessary. L = Lubricate. [ ]: At the mileage interval only.
(1) Refer to “Tire rotation” under
the “General maintenance” heading earlier in this section.
MAINTENANCE OPERATION
MAINTENANCE INTERVALReference
Section
- Page or
- Content
Title
Perform at number of miles, kilometers or
months, whichever comes first.
Miles x 1,000
(km x 1,000)
Months 7.5
(12)
6 15
(24)
12 22.5
(36)
18 30
(48)
24 37.5
(60)
30 45
(72)
36 52.
5
(84) 42 60
(96)
48
Brake lines and cables IIIIMA-30
Brake pads and rotors IIIIMA-30
Automatic transmission fluid IIIIMA-23
Transfer fluid and front final drive oil IIIIMA-26,
MA-26
Rear final drive oil IIIIMA-26
Steering gear and linkage, axle and suspen-
sion parts IIMA-30,
MA-31
Tire rotation NOTE (1) MA-29
Drive shaft boots and propeller shaft
(4WD)IIII
MA-26
Exhaust system IIMA-23
In-cabin microfilter RRRRMA-22
Revision: March 2010 2008 QX56

MA-12
< ON-VEHICLE MAINTENANCE >
RECOMMENDED FLUIDS AND LUBRICANTS
RECOMMENDED FLUIDS AND LUBRICANTS
Fluids and LubricantsINFOID:0000000001606168
*1: For further details, refer to MA-12, "Engine Oil Recommendation" .
*2: Using automatic transmission fluid other than Genuine NISSAN Matic J ATF may cause deterioration in driveability and
automatic transmission durability, and may damage the automatic transmission, which is not covered by the NISSAN new
vehicle limited warranty.
*3: DEXRON
TM VI type ATF may also be used.
*4: Available in mainland U.S.A. through your INFINITI dealer.
*5: For further details, see “Air conditioner specification label”.
*6: For hot climates, viscosity SAE 90 is suitable for ambient te mperatures above 0° C (32 ° F).
*7: Using fluid other than Genuine NISSAN Matic D ATF may cause de terioration in driveability and transfer durability, and may
damage the transfer, which is not covered by the NISSAN new vehicle limited warranty.
*8: For improved vehicle performance, INFINITI recommends the use of unleaded premium gasoline with an octane rating of at leas t 91
AKI (RON 96). For further details, refer to GI-27, "
Precaution for Fuel (Unleaded Premium Gasoline Recommended)".
*9: See your INFINITI dealer for service for synthetic oil.
Engine Oil RecommendationINFOID:0000000006211816
Description Capacity (Approximate)
Recommended Fluids/Lubricants
Metric US measure Imp measure
Fuel 105.8 28 gal 23 1/4 gal Unleaded gasoline with an octane rating
of at least 87 AKI (RON 91) *8
Engine oil
Drain and refill With oil filter
change
6.5
6 7/8 qt 5 3/4 qt
• API Certification Mark*1
• Viscosity SAE 5W-30
Without oil filter
change
6.2
6 1/2 qt 5 1/2 qt
Dry engine (engine overhaul) 7.6 8 qt
6 3/4 qt
Cooling system With reservoir
at MAX level
14.4
15 1/4 qt 12 5/8 qt Genuine NISSAN Long Life Anti-freeze
coolant or equivalent
Automatic transmission fluid (ATF) 10.6 11 1/4 qt 9 3/8 qt Genuine NISSAN Matic J ATF *2
Rear final drive oil 1.75 3 3/4 pt 3 1/8 pt API GL-5 Synthetic 75W-90 Gear Oil
(Part No. 999MP-DF200P) or equivalent
*9
Transfer fluid 3.0 3 1/8 qt 2 5/8 qt Genuine NISSAN Matic D ATF *7
Front final drive oil 1.6 3 3/8 pt 2 7/8 pt API GL-5 Viscosity SAE 80W-90 *6
Power steering fluid (PSF) 1.0 1 1/8 qt 7/8 qt Genuine NISSAN PSF or equivalent *3
Brake fluid —— —Genuine NISSAN Super Heavy Duty
Brake Fluid or equivalent,
DOT 3 (US FMVSS No. 116) *4
Brake grease —— —PBC (poly butyl cuprysil) grease or equiv-
alent
Multi-purpose grease —— — NLGI No. 2 (lithium soap base)
Windshield washer fluid 4.9 5 1/8 qt 4 3/8 qt Genuine NISSAN Windshield Washer
Concentrate Cleaner & Anti-freeze or
equivalent
Air conditioning system refrigerant 1.08 ± 0.05 kg 2.38 ± 0.11 lb 2.38 ± 0.11 lb HFC-134a (R-134a) *5
Air conditioning system oil 290 m9.8 fl oz 10.2 fl oz NISSAN A/C System Oil Type S or equiv-
alent *5
Revision: March 2010
2008 QX56

CHASSIS AND BODY MAINTENANCEMA-23
< ON-VEHICLE MAINTENANCE >
C
DE
F
G H
I
J
K L
M B
MA
N
O A
6. Install the lower glove box in the instrument panel and secure it
with the two hinge pins.
Checking Exhaust SystemINFOID:0000000001606180
Check exhaust pipes, muffler and mounting for improper attachment,
leaks, cracks, damage, loose connec tions, chafing or deterioration.
Checking Automatic Transmission Fluid (ATF)INFOID:0000000001606181
1. Remove the ATF level gauge bolt.
2. Before driving, the ATF level can be checked at ATF tempera-
tures of 30 ° to 50 °C (86° to 122° F) using the “COLD” range on
the ATF level gauge as follows:
a. Park the vehicle on a level surface and set the parking brake.
b. Start the engine and move the shift selector through each gear position. Move the shift selector into the “P” position.
c. Check the ATF level with the engine idling.
d. Remove the ATF level gauge and wipe it clean with a lint-free paper.
CAUTION:
When wiping the ATF from the ATF level gauge, always use
a lint-free paper, not a cloth.
e. Re-insert the ATF level gauge into the charging pipe until the cap contacts the top of the charging pipe as shown.
CAUTION:
To check ATF level, insert the ATF level gauge until the cap
contacts the top of the charging pipe, with the gauge
reversed from the normal inserted position.
f. Remove the ATF level gauge and note the ATF level. If the ATF level is at low side of range, add ATF to the transmission
through the charging pipe.
CAUTION:
Do not overfill the tr ansmission with ATF.
g. Install the ATF level gauge and the ATF level gauge bolt.
3. Warm up the engine.
4. Check for any ATF leaks.
WLIA0027E
SMA211A
WLIA0014E
ATF level gauge bolt : Refer to TM-220, "Component" .
SCIA1684E
Revision: March 2010 2008 QX56

MA-24
< ON-VEHICLE MAINTENANCE >
CHASSIS AND BODY MAINTENANCE
5. Drive the vehicle to increase the ATF temperature to 80° C (176 ° F).
6. Allow the ATF temperature to fall to approximately 65 °C (149° F). Use the CONSULT-III to monitor the ATF
temperature as follows:
NOTE:
ATF level will be greatly affected by temperature as shown. Therefore monitor the ATF temperature data
using the CONSULT-III.
a. Connect CONSULT-III to data link connector.
b. Select “MAIN SIGNALS” in “DATA MONI TOR” mode for “A/T” with CONSULT-III.
c. Read out the value of “ATF TEMP 1”.
7. Re-check the ATF level at ATF temperatures of approximately 65°C (149° F) using the “HOT” range on the ATF level gauge as
shown.
CAUTION:
• When wiping the ATF from the ATF level gauge, always use lint-free paper, not a cloth.
• To check the ATF level, insert the ATF level gauge until the cap contacts the top of the ch arging pipe, with the gauge
reversed from the normal inserted position as shown.
8. Check the ATF condition. • If the ATF is very dark or has some burned smell, there may be an internal problem with the transmis-
sion. Refer to TM-178, "
Checking the A/T Fluid (ATF)". Flush the transmission cooling system after
repairing the transmission.
• If the ATF contains frictional material (clutches, bands , etc.), replace the radiator and flush the transmis-
sion cooler lines using cleaning solvent and compressed air after repairing the transmission.
9. Install the ATF level gauge in the ATF charging pipe and install the level gauge bolt.
SLIA0016E
WLIA0014E
SCIA1684E
Revision: March 2010 2008 QX56

CHASSIS AND BODY MAINTENANCEMA-25
< ON-VEHICLE MAINTENANCE >
C
DE
F
G H
I
J
K L
M B
MA
N
O A
10. Tighten the level gauge bolt to specification.
Changing Automatic Transmission Fluid (ATF)INFOID:0000000001606182
1. Drive the vehicle to warm up the ATF to 80
° C (176 ° F).
2. Stop the engine.
3. Remove the ATF level gauge bolt.
4. Drain the ATF from the drain plug hole and then install the drain plug with a new gasket. Refill the transmission with new ATF.
Always refill with the same volume as the drained ATF. Use the
ATF level gauge to check the ATF level as shown. Add ATF as
necessary.
• To flush out the old ATF from the coolers, pour new ATF into the charging pipe with the engine idling and
at the same time drain the old ATF from the aux iliary transmission oil cooler hose return line.
• When the color of the ATF coming out of the auxiliary transmission oil cooler hose return line is about
the same as the color of the new ATF, flushing out the old ATF is complete. The amount of new trans-
mission ATF used for flushing should be 30% to 50% of the specified capacity.
CAUTION:
• Use only the specified ATF. Do not mix with other fluids.
• Using an ATF other than the speci fied ATF will cause deterioration in driveability and automatic
transmission durability, and may damage the au tomatic transmission, which is not covered by
the warranty.
• When filling the transmission with ATF, do not spill the ATF on any heat generating parts such as the exhaust manifold.
• Do not reuse the drain plug gasket.
5. Install the ATF level gauge in the ATF charging pipe and tighten the level gauge bolt to specification.
6. Drive the vehicle to warm up the ATF to 80 ° C (176 ° F).
7. Check the ATF level and condition. Refer to TM-178, "
Checking the A/T Fluid (ATF)". If the ATF is still
dirty, repeat steps 2 through 5.
Changing Transfer FluidINFOID:0000000001606183
DRAINING
1. Stop the engine. Level gauge bolt: : Refer to
TM-220, "
Component" .
Drain plug : Refer to TM-220, "
Component" .
WLIA0014E
ATF type and capacity : Refer to MA-12, "Fluids and Lubricants" .
Drain plug : Refer to TM-220, "
Component" .
Level gauge bolt : Refer to TM-220, "
Component".
Revision: March 2010 2008 QX56

MWI
DIAGNOSIS SYSTEM (METER)MWI-27
< FUNCTION DIAGNOSIS >
C
DE
F
G H
I
J
K L
M B A
O P
NOTE:
Some items are not available due to vehicle specification.
*: The monitor will indicate “OFF” even though the brake warnin g lamp is on if either of the following conditions exist.
• The parking brake is engaged
• The brake fluid level is low CRUISE W/L [ON/OFF]
X Indicates [ON/OFF] condition of CRUISE warning lamp.
4WD LOCK SW [ON/OFF] X Indicates [ON/OFF] condition of 4WD lock switch.
4WD LOCK IND [ON/OFF] X Indicates [ON/OFF] condition of 4WD lock indicator.
SEAT BELT W/L [ON/OFF] X Indicates [ON/OFF] condition of seat belt warning lamp.
FR FOG IND [ON/OFF] X This item is not used for this model. “OFF” is always displayed.
RR FOG IND [ON/OFF] X This item is not used for this model. “OFF” is always displayed.
LIGHT IND [ON/OFF] X Indicates [ON/OFF] condition of light indicator.
PNP P SW [ON/OFF] XX Indicates [ON/OFF] co ndition of transmission range P switch.
PNP N SW [ON/OFF] XX Indicates [ON/OFF] condition of transmission range N switch.
4WD W/L [ON/OFF] X Indicates [ON/OFF] condition of 4WD warning lamp.
Display item [Unit]
MAIN
SIGNALS SELECTION
FROM MENU Description
Revision: March 2010
2008 QX56

PCS-10
< FUNCTION DIAGNOSIS >[IPDM E/R]
POWER CONSUMPTION CONTROL SYSTEM
POWER CONSUMPTIO
N CONTROL SYSTEM
System DiagramINFOID:0000000001696487
System DescriptionINFOID:0000000001696488
OUTLINE
• IPDM E/R incorporates a power consumption control function that reduces the power consumption accord-
ing to the vehicle status.
• IPDM E/R changes its status (control mode) with the sleep wake up signal received from BCM via CAN com-
munication.
Normal mode (wake-up)- CAN communication is normally performed with other control units.
- Individual unit control by IPDM E/R is normally performed.
Low power consumption mode (sleep)- Low power consumption control is active.
- CAN transmission is stopped.
SLEEP MODE ACTIVATION
• IPDM E/R judges that the sleep-ready conditions are fulfilled when the ignition switch is OFF and none of theconditions below are present. Then it transmits a sleep-ready signal (ready) to BCM via CAN communica-
tion.
- Front wiper fail-safe operation
- Outputting signals to actuators
- Switches or relays operating
- Auto active test is starting
- Emergency OFF
- Output requests are being received from control units via CAN communication.
• IPDM E/R stops CAN communication and enters the low power consumption mode when it receives a sleep
wake up signal (sleep) from BCM and the sleep-ready conditions are fulfilled.
WAKE-UP OPERATION
• IPDM E/R changes from the low power consumption mode to the normal mode when it receives a sleep
wake-up signal (wake up) from BCM or any of the following conditions is fulfilled. In addition, it transmits a
sleep-ready signal (not-ready) to BCM via CAN communication to report the CAN communication start.
- Ignition switch ON
- An output request is received from a control unit via CAN communication.
AWMIA0082GB
Revision: March 2010 2008 QX56

RAX-1
TRANSMISSION & DRIVELINE
CEF
G H
I
J
K L
M
SECTION RAX
A
B
RAX
N
O P
CONTENTS
REAR AXLE
PRECAUTION ....... ........................................2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
2
Caution ......................................................................3
PREPARATION ............................................4
PREPARATION .............................................. .....4
Special Service Tool ........................................... ......4
Commercial Service Tool ..........................................4
SYMPTOM DIAGNOSIS ...............................5
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING ........................ .....
5
NVH Troubleshooting Chart ................................ ......5
ON-VEHICLE MAINTENANCE .....................6
WHEEL HUB .................................................. .....6
On-Vehicle Inspection and Service ..................... ......6
ON-VEHICLE REPAIR ..................................7
REAR DRIVE SHAFT .........................................7
Component .......................................................... .....7
REMOVAL AND INSTALLATION ................8
WHEEL HUB ......................................................8
Removal and Installation ..................................... .....8
REAR DRIVE SHAFT ........................................10
Removal and Installation .........................................10
DISASSEMBLY AND ASSEMBLY ..............11
REAR DRIVE SHAFT ........................................11
Disassembly and Assembly ................................. ....11
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... .......................................... ...
16
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
16
Wheel Bearing ..................................................... ....16
Drive Shaft ...............................................................16
Boot Bands ..............................................................16
Revision: March 2010 2008 QX56