check oil INFINITI QX56 2009 Factory Service Manual

MA-1
MAINTENANCE
C
DE
F
G H
I
J
K L
M B
MA
SECTION MA
N
O A
CONTENTS
MAINTENANCE
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
PREPARATION ............................................4
PREPARATION .............................................. .....4
Special Service Tool ........................................... ......4
Commercial Service Tool ..........................................4
ON-VEHICLE MAINTENANCE .....................6
GENERAL MAINTE NANCE ........................... .....6
General Maintenance .......................................... ......6
PERIODIC MAINTENANCE ................................8
Introduction of Periodic Maintenance .................. ......8
Maintenance for Off-road Driving (4WD only) ...........8
Schedule 1 ................................................................8
Schedule 2 ..............................................................10
RECOMMENDED FLUIDS AND LUBRI-
CANTS ................................................................
12
Fluids and Lubricants .......................................... ....12
Engine Oil Recommendation ..................................13
ENGINE MAINTENANCE ...................................14
Checking Drive Belts ........................................... ....14
Changing Engine Coolant .......................................14
Checking Fuel Line .............................................. ....17
Changing Fuel Filter ................................................17
Changing Engine Air Cleaner Filter .........................17
Changing Engine Oil ................................................18
Changing Oil Filter ...................................................18
Changing Spark Plugs .............................................19
Checking EVAP Vapor Line .....................................20
CHASSIS AND BODY MAINTENANCE ...........22
Changing In-cabin Microfilter ............................... ....22
Checking Exhaust System .......................................22
Checking the A/T Fluid (ATF) ..................................23
Changing the A/T Fluid (ATF) ..................................24
Checking Transfer Fluid ..........................................25
Changing Transfer Fluid ..........................................26
Checking Propeller Shaft .........................................26
Checking Front Final Drive Oil .................................26
Changing Front Final Drive Oil ................................27
Checking Rear Final Drive Oil .................................27
Changing Rear Final Drive Oil .................................27
Balancing Wheels ....................................................28
Rotation ...................................................................29
Checking Brake Fluid Level and Leaks ...................30
Checking Brake Line and Cables ............................30
Checking Disc Brake ...............................................30
Checking Steering Gear and Linkage ......................31
Checking Power Steering Fluid and Line ................31
Checking Axle and Suspension Parts .....................32
Lubricating Locks, Hinges and Hood Latches .........33
Checking Seat Belts, Buckles, Retractors, An-
chors and Adjusters ............................................. ....
33
Revision: December 20092009 QX56

MA-4
< PREPARATION >
PREPARATION
PREPARATION
PREPARATION
Special Service ToolINFOID:0000000003776977
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service ToolINFOID:0000000003776978
Tool number
(Kent-Moore No.)
Tool name Description
KV10115801
(J-38956)
Oil filter cap wrench Removing and installing oil filter
a: 64.3 mm (2.531 in)
KV991J0010
(J-23688)
Engine coolant refractometer Checking concentration of ethylene glycol in
engine coolant
KV991J0070
(J-45695)
Coolant refill tool Filling cooling system
—
(J-24460-92)
Radiator pressure test adapter set Adapting radiator pressure tester to reservoir
filler neck.
NT375
WBIA0539E
LMA053
AWBIA0891ZZ
Revision: December 20092009 QX56

GENERAL MAINTENANCEMA-7
< ON-VEHICLE MAINTENANCE >
C
DE
F
G H
I
J
K L
M B
MA
N
O A
UNDER THE HOOD AND VEHICLE
The maintenance items listed here should be checked periodically (e.g. each time you check the engine oil or refuel).
Seat beltsCheck that all parts of the seat belt system (e.g. buckles, anchors, adjusters and
retractors) operate properly and smoothly and are installed securely. Check the
belt webbing for cuts, fraying, wear or damage. SB-11, "Seat Belt Inspec-
tion", MA-33, "Checking
Seat Belts, Buckles, Re-
tractors, Anchors and
Adjusters"
Accelerator pedal
Check the pedal for smooth operation. Keep the floor mats away from the pedal. —
Brakes Check that the brake does not pull the vehicle to one side when applied. —
Brake pedal and
booster Check the pedal for smooth operation and make sure it has the proper distance
under it when depressed fully. Check the brake booster function. Keep the floor
mats away from the pedal. BR-15, "
Inspection and
Adjustment", BR-10, "In-
spection"
Parking brake
Check that the parking brake control has the proper travel and make sure that
the vehicle is held securely on a fairly steep hill when only the parking brake is
applied. PB-5, "On-Vehicle Ser-
vice"
Automatic transmis-
sion “Park” mecha-
nismOn a fairly steep hill check that the vehicle is held securely with the selector lever
in the P position without applying the brakes.
—
Item
Reference page
Item Reference page
Windshield washer
fluid Check that there is adequate fluid in the tank.
—
Engine coolant level Check the coolant level when the engine is cold. —
Radiator and hoses Check the front of the radiator and clean off any dirt, insects, leaves, etc., that
may have accumulated. Make sure the hoses have no cracks, deformation, de-
terioration or loose connections. —
Brake fluid level Make sure that the brake fluid level is between the “MAX” and “MIN” lines on the
reservoir. MA-30
Battery
Check the fluid level in each cell. It should be between the “MAX” and “MIN” lines.
Vehicles operated in high temperatures or under severe conditions require fre-
quent checks of the battery fluid level. —
Engine drive belt Make sure that no belt is frayed, worn, cracked or oily. MA-14
Engine oil levelCheck the level on the dipstick after parking the vehicle on a level spot and turn-
ing off the engine. —
Power steering fluid
level and lines Check the level on the reservoir with the engine off. Check the lines for improper
attachment, leaks, cracks, etc.
MA-31
Automatic transmis-
sion fluid levelCheck the level on the dipstick after putting the selector lever in “P” with the en-
gine idling.
MA-23
Exhaust system
Make sure there are no loose supports, cracks or holes. If the sound of the ex-
haust seems unusual or there is a smell of exhaust fumes, immediately locate
the trouble and correct it. MA-22
Underbody
The underbody is frequently exposed to corrosive substances such as those
used on icy roads or to control dust. It is very important to remove these sub-
stances, otherwise rust will form on the floor pan, frame, fuel lines and around the
exhaust system. At the end of winter, the underbody should be thoroughly
flushed with plain water, being careful to clean those areas where mud and dirt
can easily accumulate. —
Fluid leaks Check under the vehicle for fuel, oil, water or other fluid leaks after the vehicle
has been parked for a while. Water dripping from the air conditioner after use is
normal. If you should notice any leaks or gasoline fumes are evident, check for
the cause and correct it immediately. —
Revision: December 20092009 QX56

ENGINE MAINTENANCEMA-15
< ON-VEHICLE MAINTENANCE >
C
DE
F
G H
I
J
K L
M B
MA
N
O A
3. Open the radiator drain plug at the bottom of the radiator, and
remove the radiator filler cap. This is the only step required
when partially draining the cooling system (radiator only).
CAUTION:
Do not to allow the coolant to contact the drive belts.
4. When draining all of the coolant in the system for engine removal or repair, it is necessary to drain the cylinder block.
Remove the RH cylinder block drain plug to drain the right bank
and the oil cooler hose to drain the left bank as shown.
5. Remove the reservoir tank to drain the engine cool ant, then clean the reservoir tank before installing it.
6. Check the drained coolant for contaminants such as rust, corrosion or discoloration. If the coolant is contaminated, flush the engine cooling system.
REFILLING ENGINE COOLANT
1. Close the radiator drain plug. Install the reservoir t ank, cylinder block drain plug, and the oil cooler hose, if
removed for a total system drain or for engine removal or repair.
• The radiator must be complete ly empty of coolant and water.
• Apply sealant to the threads of the cylinder block drain plug. Use Genuine High Performance Thread Sealant or equivalent. Refer to GI-15, "
Recommended Chemical Products and Sealants".
2. Set the vehicle heater controls to the full HOT and heat er ON position. Turn the vehicle ignition ON with
the engine OFF as necessary to activate the heater mode.
3. Remove the vented reservoir cap and replace it wit h a non-vented reservoir cap before filling the cooling
system.
WBIA0391E
PBIC0146E
WBIA0392E
Radiator drain plug : Refer to CO-15.
RH cylinder block drain plug : Refer to EM-82
.
Revision: December 20092009 QX56

MA-18
< ON-VEHICLE MAINTENANCE >
ENGINE MAINTENANCE
1. Remove the air cleaner case (upper).
2. Remove the air cleaner filter from the air cleaner case (lower).
INSTALLATION
1. Install the new air cleaner filter in the air cleaner case (lower).
2. Install the air cleaner case (upper).
Changing Engine OilINFOID:0000000004215531
WARNING:
• Be careful not to burn yourself, as the engine oil is hot.
• Prolonged and repeated contact with used engine oil may
cause skin cancer. Try to avoid di rect skin contact with used
engine oil. If skin contact is made, wash thoroughly with soap
or hand cleaner as soon as possible.
1. Remove engine front undercover using power tool.
2. Warm up engine, and check for oil leakage from engine compo- nents. Refer to LU-8, "
Inspection".
3. Stop engine and wait for 10 minutes.
4. Loosen oil filler cap, then remove drain plug.
5. Drain engine oil.
6. Install drain plug with new washer. CAUTION:
• Be sure to clean drain plug and install with new washer.
7. Refill with new engine oil. Refer to MA-12, "
Fluids and Lubricants".
Engine oil capacity (Approximate):
Unit: (US qt, Imp qt)
CAUTION:
• The refill capacity depends on the engine oil temperature and drain time. Use these specifica-
tions for reference only.
• Always use the oil level gauge to determine when the proper amount of engine oil is in the engine.
8. Warm up engine and check area around drain plug and oil filter for oil leakage.
9. Stop engine and wait for 10 minutes.
10. Check engine oil level. Refer to LU-8, "
Inspection".
Changing Oil FilterINFOID:0000000004215532
REMOVAL
1. Drain the engine oil. Refer to LU-9, "Changing Engine Oil".
2. Remove the oil filter using Tool.
WARNING:
Be careful not to get burned when the engine and engine oil
are hot.
CAUTION:
• The oil filter is provided with a relief valve.
• Use Genuine NISSAN oil filter or equivalent.Oil pan drain plug : 34.3 N·m (3.5 kg-m, 25 ft-lb)
KBIA2498E
Drain and refill
With oil filter change
6.5 (6 7/8, 5-3/4)
Without oil filter change 6.2 (6-1/2, 5-1/2)
Dry engine (engine overhaul) 7.6 (8, 6-3/4)
Tool number : KV10115801 (J-38956)
WBIA0388E
Revision: December 20092009 QX56

ENGINE MAINTENANCEMA-19
< ON-VEHICLE MAINTENANCE >
C
DE
F
G H
I
J
K L
M B
MA
N
O A
• When removing, prepare a shop cloth to ab
sorb any engine oil leakage or spillage.
• Do not allow engine oil to adhere to the drive belts.
• Completely wipe off any engine oil that adheres to the engine and the vehicle.
INSTALLATION
1. Remove foreign materials adhering to the oil filter installation surface.
2. Apply engine oil to the oil seal circumference of the new oil filter.
3. Screw the oil filter manually until it touches the installation sur-
face, then tighten it by 2/3 turn. Or tighten to specification.
4. Refill the engine with new engine oil. Refer to LU-9, "
Changing
Engine Oil".
5. Inspect the engine for oil leakage. Follow the "INSPECTION AFTER INSTALLATION" procedure.
INSPECTION AFTER INSTALLATION
1. Check the engine oil level. Refer to LU-8, "Inspection".
2. Start the engine and check for engine oil leakage.
3. Stop the engine and wait for 10 minutes.
4. Check the engine oil level and add engine oil as required.
Changing Spark PlugsINFOID:0000000004215530
SMA010
Oil filter : 17.7 N·m (1.8 kg-m, 13 ft-lb)
SMA229B
1. Ignition coil 2. Spark plug
WBIA0796E
Revision: December 20092009 QX56

MA-20
< ON-VEHICLE MAINTENANCE >
ENGINE MAINTENANCE
REMOVAL
1. Disconnect the harness connector from the ignition coil.
2. Remove ignition coil.CAUTION:
Do not shock ig nition coil.
3. Remove spark plug using suitable tool.
INSPECTION AFTER REMOVAL
• Do not use a wire brush for cleaning.
• If plug tip is covered with carbon, spark plug cleaner may be used.
• Checking and adjusting plug gap is not required between change intervals.
INSTALLATION
Installation is in the reverse order of removal.
Spark Plug Types
*: Always check with the Parts Department for the latest parts information
CAUTION:
Do not drop or shock spark plug.
Checking EVAP Vapor LineINFOID:0000000003776994
1. Visually inspect the EVAP vapor lines for improper attachment, cracks, damage, loose connections, chaf-
ing, or deterioration.
SEM294A
Cleaner air pressure:
Less than 588 kPa (5.9 bar, 6 kg/cm
2, 85 psi)
Cleaning time: Less than 20 seconds
SMA773C
SMA806CA
Make NGK
Model Standard model
Standard type* DILFR5A-11
Gap (Nominal) 1.1 mm (0.043 in)
Revision: December 20092009 QX56

CHASSIS AND BODY MAINTENANCEMA-25
< ON-VEHICLE MAINTENANCE >
C
DE
F
G H
I
J
K L
M B
MA
N
O A
• To flush out the old A/T fluid from the transmission o
il coolers, pour new A/T fluid into the A/T fluid charg-
ing pipe with the engine idling and at the same time drain the old A/T fluid from the auxiliary transmis-
sion oil cooler hose return line.
• When the color of the A/T fluid coming out of the aux iliary transmission oil cooler hose return line is
about the same as the color of the new A/T fluid, flushing out the old A/T fluid is complete. The amount
of new A/T fluid used for flushing should be 30% to 50% increase of the specified capacity.
CAUTION:
• If Genuine NISSAN Matic S ATF is not available, Genuine NISSAN Matic J ATF may also be used.
• Using ATF fluid other than Genuine NISSAN Matic S ATF or Matic J ATF will cause deterioration
in driveability and A/T durability, and may damage the A/T, which is not covered by the warranty.
• When filling the transmission with A/T fluid, do not spill the A/T fluid on any heat generating
parts such as the exhaust parts.
• Do not reuse the drain plug gasket.
5. Install the A/T fluid level gauge and tighten t he A/T fluid level gauge bolt to specification.
6. Drive the vehicle to warm up the A/T fluid to approximately 80 ° C (176 ° F).
7. Check the fluid level and condition. If the A/T fluid is still dirty, repeat steps 2 through 6.
8. Install the A/T fluid level gauge in the A/T fluid charging pipe and install the A/T fluid level gauge bolt.
9. Tighten the A/T fluid level gauge bolt to specification.
Checking Transfer FluidINFOID:0000000004215545
CAUTION:
If using the vehicle for towing, the transfer fluid must be replaced as specified. Refer to MA-8, "
Intro-
duction of Periodic Maintenance".
FLUID LEAKAGE AND FLUID LEVEL
1. Make sure that fluid is not leaking from the transfer assembly or around it.
2. Check fluid level from the filler plug hole as shown.
CAUTION:
Do not start engine while checking fluid level.
3. Install the filler plug with a new gasket to the transfer. Tighten to the specified torque. Refer to DLN-142, "
Disassembly and
Assembly".
CAUTION:
Do not reuse gasket. A/T fluid grade and capacity : Refer to MA-12, "
Fluids and Lubricants".
A/T fluid level
gauge bolt : Refer to
TM-214, "
Removal and Installation (2WD)" or TM-216, "Removal and
Installation (4WD)".
LLIA0071E
A/T fluid level
gauge bolt : Refer to TM-214, "Removal and Installation (2WD)" or TM-216, "Removal and
Installation (4WD)".
SDIA3209E
Revision: December 20092009 QX56

MA-26
< ON-VEHICLE MAINTENANCE >
CHASSIS AND BODY MAINTENANCE
Changing Transfer Fluid
INFOID:0000000004215546
CAUTION:
If using the vehicle for towing, the transfer fluid must be replaced as specified. Refer to MA-8, "
Intro-
duction of Periodic Maintenance".
DRAINING
1. Stop engine.
2. Remove the drain plug and gasket and drain the fluid.
3. Install the drain plug with a new gasket to the transfer. Tighten to
the specified torque. Refer to DLN-142, "
Disassembly and
Assembly".
CAUTION:
Do not reuse gasket.
FILLING
1. Remove the filler plug and gasket.
2. Fill the transfer with new fluid until the fluid level reaches the specified limit near the filler plug hole.
CAUTION:
Carefully fill fluid. (Fil l up for approx. 3 minutes.)
3. Leave the vehicle for 3 minutes, and check fluid level again.
4. Install the filler plug with a new gasket to the transfer. Tighten to the specified torque. Refer to DLN-142, "
Disassembly and
Assembly".
CAUTION:
Do not reuse gasket.
Checking Propeller ShaftINFOID:0000000003777001
Check the front and rear propeller shafts for damage, dents, and cracks. Check the joints for looseness and
any damage. Repair or replace as necessary.
Checking Front Final Drive OilINFOID:0000000004215541
DIFFERENTIAL GEAR OIL LEAKAGE AND LEVEL
1. Make sure that differential gear oil is not leaki ng from the front final drive assembly or around it.
2. Check the differential gear oil level from the filler plug hole as shown.
CAUTION:
Do not start engine while checki ng differential gear oil level.
3. Install the filler plug with sealant applied on the threads to the front final drive assembly. Tighten to the specified torque. Refer
to DLN-217, "
Disassembly and Assembly".
• Use High Performance Thread Sealant or equivalent. Refer to GI-15, "
Recommended Chemical Products and Sealants".
SDIA3208E
Fluid grade and capacity : Refer to MA-12, "Fluids and
Lubricants".
SDIA3209E
LDIA0176E
Revision: December 20092009 QX56

CHASSIS AND BODY MAINTENANCEMA-27
< ON-VEHICLE MAINTENANCE >
C
DE
F
G H
I
J
K L
M B
MA
N
O A
Changing Front Final Drive OilINFOID:0000000004215542
DRAINING
1. Stop the engine.
2. Remove the drain plug from the front final drive assembly to drain the differential gear oil.
3. Install the drain plug with sealant applied on the thr
eads to the front final drive assembly. Tighten to the
specified torque. Refer to DLN-217, "
Disassembly and Assembly".
• Use High Performance Thread Sealant or equivalent. Refer to GI-15, "
Recommended Chemical Prod-
ucts and Sealants".
FILLING
1. Remove the filler plug from the front final drive assembly.
2. Fill the front final drive assembly with new differential gear oil
until the level reaches the specified level near the filler plug hole.
3. Install the filler plug with sealant applied on the threads to the front final drive assembly. Tighten to the specified torque. Refer
to DLN-217, "
Disassembly and Assembly".
• Use High Performance Thread Sealant or equivalent. Refer to
GI-15, "
Recommended Chemical Products and Sealants".
Checking Rear Final Drive OilINFOID:0000000004215543
OIL LEAKAGE AND OIL LEVEL
1. Make sure that differential gear oil is not leaking from the rear final drive assembly or around it.
2. Check the differential gear oil level from the filler plug hole as shown.
CAUTION:
Do not start engine while checki ng differential gear oil level.
3. Install the filler plug with a new gasket on it to the rear final drive assembly. Tighten to the specified torque. Refer to DLN-253,
"Disassembly and Assembly".
CAUTION:
Do not reuse gasket.
Changing Rear Final Drive OilINFOID:0000000004215544
DRAINING
1. Stop the engine.
2. Remove the drain plug and gasket from the rear final drive assembly to drain the differential gear oil.
3. Install the drain plug with a new gasket to the rear final drive assembly. Tighten to the specified torque. Refer to DLN-253,
"Disassembly and Assembly".
CAUTION:
Do not reuse gasket.
FILLING
Differential gear oil
grade and capacity : Refer to
MA-12, "Fluids
and Lubricants".
LDIA0176E
LLIA0068E
LLIA0068E
Revision: December 20092009 QX56