2006 INFINITI QX56 Factory Service Manual

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Page 2601 of 3383

INFINITI QX56 2006 Factory Service Manual MA-2Revision: November 20092006 QX56
Lubricating Locks, Hinges and Hood Latches .....
... 31
Checking Seat Belts, Buckles, Retractors, Anchors and Adjusters ........................................

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INFINITI QX56 2006 Factory Service Manual PRECAUTIONSMA-3
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Revision: November 2009 2006 QX56
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EL

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INFINITI QX56 2006 Factory Service Manual MA-4
PREPARATION
Revision: November 20092006 QX56
PREPARATIONPFP:00002
Special Service ToolsELS001BG
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated he

Page 2604 of 3383

INFINITI QX56 2006 Factory Service Manual GENERAL MAINTENANCEMA-5
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Revision: November 2009 2006 QX56
GENERAL MAINTENANCEPFP:00000
General MaintenanceELS001BI
General maintenance includes those items which should be ch

GENERAL MAINTENANCEMA-5
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GENERAL MAINTENANCEPFP:00000
General MaintenanceELS001BI
General maintenance includes those items which should be checked during the normal day-to-day operation
of the vehicle. They are essential if the vehicle is to continue operating properly. The owner can perform these
checks and inspections or have their INFINITI dealers perform them.
OUTSIDE THE VEHICLE
The maintenance items listed here should be performed from time to time, unless otherwise specified.
INSIDE THE VEHICLE
The maintenance items listed here should be checked on a regular basis, such as when performing periodic maintenance, cleaning the
vehicle, etc. Item
Reference page
Tires Check the pressure with a gauge at least once a month and always prior to a
long distance trip. Adjust to the specified pressure if necessary. Check carefully
for damage, cuts or excessive wear. —
Wheel lug nuts When checking the tires, make sure no nuts are missing, and check for any
loose nuts. Tighten if necessary. WT-7, "
Rotation"
Windshield
Clean the windshield on a regular basis. Check the windshield at least every six
months for cracks or other damage. Repair as necessary. —
Tire rotation Tires should be rotated every 12,000 km (7,500 miles). WT-7, "
Rotation"
Wheel alignment and
balanceIf the vehicle pulls to either side while driving on a straight and level road, or if
you detect uneven or abnormal tire wear, there may be a need for wheel align-
ment. If the steering wheel or seat vibrates at normal highway speeds, wheel
balancing may be needed. WT-6, "Balancing
Wheels", FSU-6, "Front
Wheel Alignment"
Windshield wiper
blades
Check for cracks or wear if they do not wipe properly.
—
Doors and engine
hood Check that all doors and the engine hood operate smoothly as well as the back
hatch. Also make sure that all latches lock securely. Lubricate if necessary.
Make sure that the secondary latch keeps the hood from opening when the pri-
mary latch is released.
When driving in areas using road salt or other corrosive materials, check lubri-
cation frequently. MA-31, "
Lubricating
Locks, Hinges and Hood
Latches"
Lamps
Make sure that the head lamps, stop lamps, tail lamps, turn signal lamps, and
other lamps are all operating properly and installed securely. Also check head
lamp aim. Clean the head lamps on a regular basis. LT-29, "Aiming Adjust-
ment" for US, LT-46,
"Aiming Adjustment" for
Canada
Item Reference page
Warning lamps and
buzzers/chimes Make sure that all warning lamps and buzzers/chimes are operating properly.
DI-25, "
Electrical Com-
ponents Inspection"
Windshield wiper and
washerCheck that the wipers and washer operate properly and that the wipers do not
streak.
—
Windshield defroster Check that the air comes out of the defroster outlets properly and in sufficient
quantity when operating the heater or air conditioner. —
Steering wheel Check that it has the specified play. Be sure to check for changes in the steering
condition, such as excessive play, hard steering or strange noises. PS-7, "
CHECKING
STEERING WHEEL
PLAY"
Seats
Check seat position controls such as seat adjusters, seat back recliner, etc. to
make sure they operate smoothly and that all latches lock securely in every
position. Check that the head restraints move up and down smoothly and that
the locks (if equipped) hold securely in all latched positions. Check that the
latches lock securely for folding-down rear seat backs. —
Seat belts Check 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
Inspection", MA-32,
"Checking Seat Belts,
Buckles, Retractors,
Anchors and Adjusters"
Accelerator pedal
Check the pedal for smooth operation. Keep the floor mats away from the pedal. —

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INFINITI QX56 2006 Factory Service Manual MA-6
GENERAL MAINTENANCE
Revision: November 20092006 QX56
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

MA-6
GENERAL MAINTENANCE
Revision: November 20092006 QX56
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).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. ACC-5, "
ADJUSTABLE
ACCELERATOR
PEDAL",
BR-17, "On-
Vehicle Service"
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-9, "Parking Brake
Control"
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,
deterioration or loose connections. —
Brake fluid level Make sure that the brake fluid level is between the “MAX ” and “ MIN” lines on the
reservoirs MA-28
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
frequent checks of the battery fluid level. —
Engine drive belt Make sure that no belt is frayed, worn, cracked or oily. MA-13
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-29
Automatic transmis-
sion fluid levelCheck the level on the dipstick after putting the selector lever in
“P ” with the
engine idling. MA-22
Exhaust system
Make sure there are no loose supports, cracks or holes. If the sound of the
exhaust 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. —

Page 2606 of 3383

INFINITI QX56 2006 Factory Service Manual PERIODIC MAINTENANCEMA-7
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Revision: November 2009 2006 QX56
PERIODIC MAINTENANCEPFP:00026
Introduction of Periodic MaintenanceELS001BJ
Two different maintenance schedules are

PERIODIC MAINTENANCEMA-7
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Revision: November 2009 2006 QX56
PERIODIC MAINTENANCEPFP:00026
Introduction of Periodic MaintenanceELS001BJ
Two different maintenance schedules are provided, and should be used, depending upon the conditions in
which the vehicle is mainly operated. After 60,000 miles (96,000 km) or 48 months, continue the periodic
maintenance at the same mileage or time intervals, whichever comes first.
Maintenance For Off-road Driving (4WD only)ELS001BK
After driving the vehicle off-road through sand, mud, or water; more frequent maintenance may be required for
the following items:
Brake pads and rotors
Brake lines and hoses
Rear final drive oil, transmission fluid, and transfer fluid
Steering linkage
Drive shafts
Engine air cleaner filter
In-cabin microfilters
Schedule 1ELS001BL
EMISSION CONTROL SYSTEM MAINTENANCE
Abbreviations: R = Replace. I = Inspect. Correct or replace if necessary. [ ]: At the mileage intervals only
Schedule 1
Follow Periodic Maintenance Schedule 1 if your driving habits frequently includes
one or more of the following driving conditions:
Repeated short trips of less than 5 miles (8 km).
Repeated short trips of less than 10 miles (16 km) with outside temperatures
remaining below freezing.
Operating in hot weather in stop-and-go
“rush hour ” traffic.
Extensive idling and/or low speed driving for long distances, such as police,
taxi or door-to-door delivery use.
Driving in dusty conditions.
Driving on rough, muddy, or salt spread roads.
Towing a trailer or using a car-top carrier. Emission Control Sys-
tem Maintenance
MA-7
Chassis and Body
MaintenanceMA-8
Schedule 2Follow Periodic Maintenance Schedule 2 if none of the driving conditions shown
in Schedule 1 apply to the driving habits.
Emission Control Sys-
tem MaintenanceMA-7Chassis and Body
MaintenanceMA-8
MAINTENANCE OPERATION
MAINTENANCE INTERVAL
Reference
Section -
Page or -
Content Title
Perform at number of miles, kilo-
meters or months, whichever
comes first. Miles x 1,000
(km x 1,000)
Months 3.75
(6)
3 7.50
(12)
6 11 . 2 5
(18)
9 15
(24)
12 18.75
(30)
15 22.5
(36)
18 26.25
(42)
21 30
(48)
24
Drive belts NOTE (1) MA-13
Air cleaner filterNOTE (2) [R]MA-16
EVAP vapor lines I*MA-20
Fuel lines I*MA-16
Fuel filter NOTE (3) —
Engine coolant NOTE (4) MA-13
Engine oilR R R R R R R R MA-17
Engine oil filterR R R R R R R R MA-17
Spark plugs (double PLATINUM-
TIPPED type)Replace every 105,000 miles (169,000 km).
MA-18
Intake and exhaust valve clear-
ance*NOTE (5)
EM-105

Page 2607 of 3383

INFINITI QX56 2006 Factory Service Manual MA-8
PERIODIC MAINTENANCE
Revision: November 20092006 QX56
(1) After 60,000 miles (96,000 km) or 48 months, inspect every 15,000 miles (24,000 km) or 12 months. Replace drive belts if da maged.
(2) I

MA-8
PERIODIC MAINTENANCE
Revision: November 20092006 QX56
(1) After 60,000 miles (96,000 km) or 48 months, inspect every 15,000 miles (24,000 km) or 12 months. Replace drive belts if da maged.
(2) If operating mainly in dusty conditions, more frequent maintenance may be required.
(3) Maintenance-free item. For service procedures, go to the FL section.
(4) After 60,000 miles (96,000 km) or 48 months, replace every 30,000 miles (48,000 km) or 24 months.
(5) If valve noise increases, inspect valve clearance.
* Maintenance items and intervals with “ *” are recommended by NISSAN for reliable vehicle operation. The owner need not perform
such maintenance in order to maintain the emission warranty or manufacturer recall liability. Other maintenance items and inter vals are
required.
CHASSIS AND BODY MAINTENANCE
Abbreviations: R = Replace. I = Inspect. Correct or replace if necessary. L = Lubricate. [ ]: At the mileage intervals only.
MAINTENANCE OPERATION
MAINTENANCE INTERVAL
Reference
Section -
Page or -
Content Title
Perform at number of miles, kilo-
meters or months, whichever
comes first. Miles x 1,000
(km x 1,000) Months 33.75
(54)27 37.5
(60) 30 41.25
(66)33 45
(72) 36 48.75
(78)39 52.5
(84) 42 56.25
(90)45 60
(96) 48
Drive belts NOTE (1) I*MA-13
Air cleaner filter NOTE (2) [R]MA-16
EVAP vapor lines I*MA-20
Fuel lines I*MA-16
Fuel filter NOTE (3) —
Engine coolant NOTE (4) R*MA-13
Engine oil R R R R R R R R MA-17
Engine oil filterR R R R R R R R MA-17
Spark plugs (double PLATINUM-
TIPPED type)Replace every 105,000 miles (169,000 km).
MA-18
Intake and exhaust valve clear-
ance*NOTE (5)
EM-105
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference
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 3.75
(6)
3 7.5
(12)
6 11 . 2 5
(18)
9 15
(24)
12 18.75
(30)
15 22.5
(36)
18 26.25
(42)
21 30
(48)
24
Brake lines and cables IIMA-28
Brake pads and rotors II IIMA-28
Automatic transmission fluid NOTE (1)IIMA-22
Transfer fluid and front final drive oil NOTE (1)IIMA-25,
MA-25
Rear final drive oil NOTE (1)IIMA-25,
MA-25
Steering gear and linkage, axle and suspen-
sion parts IIII
MA-29,
MA-30
Tire Rotation NOTE (2) MA-28
Drive shaft boots and propeller shaft (4WD)II IIMA-25
Exhaust system II IIMA-22
In-cabin microfilter RRMA-21

Page 2608 of 3383

INFINITI QX56 2006 Factory Service Manual PERIODIC MAINTENANCEMA-9
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Revision: November 2009 2006 QX56
(1) If towing a trailer, or using a car-top carrier, or driving on rough or muddy roads, change (not just inspect)

PERIODIC MAINTENANCEMA-9
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Revision: November 2009 2006 QX56
(1) If towing a trailer, or using a car-top carrier, or driving on rough or muddy roads, change (not just inspect) oil at every 30,000 miles
(48,000 km) or 24 months.
(2) Refer to “ Tire rotation” under the “General maintenance ” heading earlier in this section.
Schedule 2ELS001BM
EMISSION CONTROL SYSTEM MAINTENANCE
Abbreviations: R = Replace. I = Inspect. Correct or replace if necessary. [ ]: At the mileage intervals only
(1) After 60,000 miles (96,000 km) or 48 months, inspect every 15,000 miles (24,000 km) or 12 months. Replace drive belts if da maged.
(2) Maintenance-free item. For service procedures, go to FL section.
(3) After 60,000 miles (96,000 km) or 48 months, replace every 30,000 miles (48,000 km) or 24 months.
(4) If valve noise increases, inspect valve clearance.
* Maintenance items and intervals with “* ” are recommended by NISSAN for reliable vehicle operation. The owner need not perform
such maintenance in order to maintain the emission warranty or manufacturer recall liability. Other maintenance items and inter vals are
required. MAINTENANCE OPERATION
MAINTENANCE INTERVAL
Reference
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 33.75
(54)27 37.5
(60) 30 41.25
(66)33 45
(72) 36 48.75
(78)39 52.5
(84) 42 56.25
(90)45 60
(96) 48
Brake lines and cables IIMA-28
Brake pads and rotors IIIIMA-28
Automatic transmission fluid NOTE (1)IIMA-22
Transfer fluid and front final drive oil NOTE (1)IIMA-25,
MA-25
Rear final drive oil NOTE (1)IIMA-25,
MA-25
Steering gear and linkage, axle and suspen-
sion parts IIIIMA-29,
MA-30
Tire Rotation NOTE (2) MA-28
Drive shaft boots and propeller shaft (4WD)IIIIMA-25
Exhaust system IIIIMA-22
In-cabin microfilter RRMA-21
MAINTENANCE OPERATION MAINTENANCE INTERVAL
Reference
Section - Page
or - Content Title
Perform at number of miles, kilome-
ters 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
Drive belts NOTE (1) I*MA-13
Air cleaner filter [R][R]MA-16
EVAP vapor lines I*I*MA-20
Fuel lines I*I*MA-16
Fuel filter NOTE (2) —
Engine coolant NOTE (3) R*MA-13
Engine oil R R R R R R R R MA-17
Engine oil filterR R R R R R R R MA-17
Spark plugs (PLATINUM-TIPPED
type) Replace every 105,000 miles (169,000 km).
MA-18
Intake and exhaust valve clearance* NOTE (4) EM-105

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