INFINITI QX56 2010 Factory Service Manual

GENERAL MAINTENANCEMA-7
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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. MA-39, "SEAT BELT,
BUCKLES, RETRAC-
TORS, ANCHORS AND
ADJUSTERS : Checking
Seat Belts, Buckles, Re-
tractors, Anchors and
Adjusters"
Accelerator pedal
Check the pedal for smooth operation and make sure the pedal does not catch
or require uneven effort. Keep the floor mats away from the pedal. ACC-6, "Accelerator
Control"
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. Be sure to keep
the floor mats away from the pedal. BR-15, "
Inspection and
Adjustment", BR-10, "In-
spection"
Parking brake
Check that the lever or the pedal has the proper travel and make sure that the
vehicle is held securely on a fairly steep hill when only the parking brake is ap-
plied. PB-5, "On-Vehicle Ser-
vice"
Automatic transmis-
sion “Park” mecha-
nismCheck that the lock release button on the selector lever operates properly and
smoothly. On a fairly steep hill check that the vehicle is held securely with the se-
lector 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. CO-10, "
Inspection"
Radiator and hosesCheck 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-34, "
BRAKE FLUID
LEVEL AND LEAKS : On
Board Inspection"
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-15, "
DRIVE BELTS :
Checking Drive Belts"
Engine oil levelCheck the level on the oil level gauge after parking the vehicle on a level spot and
turning off the engine. LU-8, "Inspection"
Power steering fluid
level and lines
Check the level on the dipstick with the engine off. Check the lines for improper
attachment, leaks, cracks, etc. MA-37, "POWER
STEERING FLUID AND
LINES : Checking Fluid
Level"
Automatic transmis-
sion fluid level
Check the level on the fluid level gauge after putting the selector lever in “P” with
the engine idling. MA-27, "A/T FLUID :
Checking the A/T Fluid
(ATF)"
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-26, "EXHAUST SYS-
TEM : Checking Exhaust
System"
Revision: April 20092010 QX56

MA-8
< ON-VEHICLE MAINTENANCE >
GENERAL MAINTENANCE
UnderbodyThe 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. —
Item
Reference page
Revision: April 20092010 QX56

PERIODIC MAINTENANCEMA-9
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PERIODIC MAINTENANCE
Introduction of Periodic MaintenanceINFOID:0000000005145934
Two different maintenance schedules are provi
ded, 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 ti me intervals, whichever comes first.
Maintenance for Off-road Driving (4WD only)INFOID:0000000005145935
Whenever you drive off-road through sand, mud, or wa ter; 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 1INFOID:0000000005145936
EMISSION CONTROL SYSTEM MAINTENANCE
Abbreviations: R = Replace. I = Ins pect. Correct or replace if necessary. [ ]: At the mileage intervals only
Schedule 1Follow Periodic Maintenance Schedule 1 if the 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 re-
maining 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-9
Chassis and Body
Maintenance
MA-9
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-11Chassis and Body
Maintenance
MA-11
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-15
Air cleaner filterNOTE (2) [R]MA-20
EVAP vapor lines I*MA-25
Fuel lines I*MA-19
Fuel filter NOTE (3) MA-19
Engine coolantNOTE (4) MA-15
Engine oilR R R R R R R R MA-22
Engine oil filter (Use genuine
NISSAN oil filter or equivalent.)RR RRR R R R
MA-22
Spark plugs (Iridium-tipped type)Replace every 105,000 miles (169,000 km).MA-24
Intake and exhaust valve clear-
ance*NOTE (5)
EM-18
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MA-10
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PERIODIC MAINTENANCE
(1) After 60,000 miles (96,000 km) or 48 months, inspect every 15,000 miles (24,000 km) or 12 months. Replace the drive belts if found
damaged or if the auto belt tensioner reading reaches the maximum limit.
(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) Periodic maintenance is not required. However, 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 intervals are
required.
CHASSIS AND BODY MAINTENANCE
Abbreviations: R = Replace. I = Inspec t. Correct or replace if necessary.
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-15
Air cleaner filter NOTE (2) [R]MA-20
EVAP vapor lines I*MA-25
Fuel lines I*MA-19
Fuel filter NOTE (3) MA-19
Engine coolantNOTE (4) R*MA-17
Engine oil R R R R R R R R MA-22
Engine oil filter (Use genuine
NISSAN oil filter or equivalent.)R R RRRRRR
MA-22
Spark plugs (Iridium-tipped type)Replace every 105,000 miles (169,000 km).MA-24
Intake and exhaust valve clear-
ance*NOTE (5)
EM-18
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-34
Brake pads and rotors II I IMA-35
Automatic transmission fluid, transfer fluid and
differential gear oil NOTE (1)
IIMA-29,
MA-30
,
MA-32
Steering gear and linkage, axle and suspension
parts II I I
MA-36,
MA-37
Tire Rotation NOTE (2) MA-34
Drive shaft boots and propeller shaft (4WD)II I IMA-31
Exhaust system II I IMA-26
In-cabin microfilter RRMA-26
Revision: April 20092010 QX56

PERIODIC MAINTENANCEMA-11
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(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. Using automatic transmission fluid other than Ge nuine NISSAN Matic S ATF or Matic J ATF will cause
deterioration in drive ability and automatic transmission durability, and may damage the automatic transmission, which is not
covered by the INFINITI new vehicle limited warranty.
(2) Refer to “Tire rotation” under the “General maintenance” heading earlier in this section.
Schedule 2INFOID:0000000005145937
EMISSION CONTROL SYSTEM MAINTENANCE
Abbreviations: R = Replace. I = Ins pect. 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 the drive belts i f found
damaged or if the auto belt tensioner reading reaches the maximum limit.
(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) Periodic maintenance is not required. However, if valve noise increases, inspect valve clearance.
* Maintenance items and inte rvals 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
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-34
Brake pads and rotors IIIIMA-35
Automatic transmission fluid, transfer fluid and
differential gear oil NOTE (1)
IIMA-29,
MA-30
,
MA-32
Steering gear and linkage, axle and suspen-
sion parts IIII
MA-36,
MA-37
Tire Rotation NOTE (2) MA-34
Drive shaft boots and propeller shaft (4WD)IIIIMA-31
Exhaust system IIIIMA-26
In-cabin microfilter RRMA-26
MAINTENANCE OPERATION MAINTENANCE INTERVAL
Reference
Section - Page
or - Content Ti- tle
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
Drive belts NOTE (1) I*MA-15
Air cleaner filter [R][R]MA-20
EVAP vapor lines I*I*MA-25
Fuel lines I*I*MA-19
Fuel filter NOTE (2) MA-19
Engine coolantNOTE (3) R*MA-17
Engine oil R R R R R R R R MA-22
Engine oil filter (Use Genuine NISSAN
oil filter or equivalent)RRRR RRR R
MA-22
Spark plug (Iridium - tipped type) Replace every 105,000 miles (169,000 km).MA-24
Intake and exhaust valve clearance* NOTE (4) EM-18
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MA-12
< ON-VEHICLE MAINTENANCE >
PERIODIC MAINTENANCE
Abbreviations: R = Replace. I = Inspect. Correct or replace if necessary.
(1) Using automatic transmission fluid other than Genuine NISSAN Matic S ATF or Matic J ATF will cause deterioration in drive
ability and automatic transmission durability, and may damage the automatic transmission, which is not covered by the
INFINITI new vehicle limited warranty.
(2) Refer to “Tire rotation” unde r 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-34
Brake pads and rotors IIIIMA-35
Automatic transmission fluid, transfer fluid
and differential gear oil N
O TE (1)IIII MA-27,
MA-30
,
MA-32
Steering gear and linkage, axle and suspen-
sion parts IIMA-36,
MA-37
Tire rotation NOTE (2) MA-34
Drive shaft boots and propeller shaft
(4WD)IIII
MA-31
Exhaust system IIMA-26
In-cabin microfilter RRRRMA-26
Revision: April 20092010 QX56

RECOMMENDED FLUIDS AND LUBRICANTSMA-13
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RECOMMENDED FLUIDS AND LUBRICANTS
Fluids and LubricantsINFOID:0000000005145938
*1: For further details, refer to
MA-14, "Engine Oil Recommendation".
*2: If Genuine NISSAN Matic S ATF is not ava ilable, Genuine Matic J ATF may also be used. Using automatic transmission fluid
other than Genuine NISSAN Matic S ATF or Matic J ATF will cause deterioration in drive ability and automatic transmission
durability, and may damage the automatic transmission, which is not covered by the INFINITI new vehicle limited warranty.
*3: DEXRON
TM VI type ATF may also be used.
*4: Available in mainland U.S.A. through an INFINITI dealer.
*5: For further details, see “Air conditioner specification label”.
*6: For hot climates, viscosity SAE 90 is suitable for ambient temperatures above 0° C (32° F).
*7: 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 furt her details, refer to GI-27, "
Precaution for Fuel (Unleaded Premium Gasoline Required)",
*8: See an INFINITI dealer for service for synthetic oil.
*9: Using fluid other than Genuin e NISSAN Matic D ATF may cause deterioration in drive ability and transfer durability, and may damage
the transfer, which is not covered by the INFINITI new vehicle limited warranty. Description
Capacity (Approximate)
Recommended Fluids/Lubricants
Metric US measure Imp measure
Fuel 105.8 28 gal 23 1/4 gal Unleaded gasoline with octane rating of
at least 87 AKI (RON 91) *7
Engine oil
Drain and refill With oil filter
change
6.5
6 7/8 qt 5 3/4 qt
• Engine oil with 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 S ATF *2
Rear differential gear 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
*8
Transfer fluid 3.0 3 1/8 qt 2 5/8 qt Genuine NISSAN Matic D ATF recom-
mended *9
Front differential gear oil 1.6 3 3/8 pt 2 7/8 pt Genuine NISSAN Differ
ential Oil Hypoid
Super GL-5 80W-90 or API GL-5 Viscosi-
ty 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 S
uper 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 4.5 4 3/4 qt
4 qtGenuine NISSAN Wind
shield 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: April 20092010 QX56

MA-14
< ON-VEHICLE MAINTENANCE >
RECOMMENDED FLUIDS AND LUBRICANTS
Engine Oil Recommendation
INFOID:0000000005145939
NISSAN recommends the use of an energy conserving oil in order to
improve fuel economy. Select only engine oils that meet the Ameri-
can Petroleum Institute (API) certification and International Lubricant
Standardization and Approval Committee (ILSAC) certification and
SAE viscosity standard (2). These oils have the API certification
mark (1) on the front of the container. Oils which do not have the
specified quality label should not be used as they could cause
engine damage.
ANTI-FREEZE COOLANT MIXTURE RATIO
The engine cooling system is filled at the factory with a high-quality, long life, year-round, anti-freeze coolant
solution. The anti-freeze solution contains rust and co rrosion inhibitors. Therefore, additional cooling system
additives are not necessary.
CAUTION:
• When adding or replacing coolant, be sure to use only Genuine NISSAN Long Life Anti-freeze cool-
ant or equivalent with the proper mixture ratio of 50% anti-freeze and 50% demineralized water or
distilled water.
• Other types of coolant solution s may damage your cooling system.
ALPIA0001ZZ
For outside temperatures down to: Anti-freeze coolant mixture ratio
° C ° F Genuine NISSAN Long Life
Antifreeze coolant Demineralized water or distilled
water
– 35 ° – 30° 50 % 50 %
Revision: April 20092010 QX56

ENGINE MAINTENANCEMA-15
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ENGINE MAINTENANCE
DRIVE BELTS
DRIVE BELTS : Exploded ViewINFOID:0000000005403131
DRIVE BELTS : Checking Drive BeltsINFOID:0000000005403132
WARNING:
Be sure to perform when the engine is stopped.
1. Remove air duct and resonator assembly when inspecting drive belt.
2. Make sure that indicator (single line notch) of eac
h auto tensioner is within the allowable working range
(between three line notches).
NOTE:
• Check the drive belt auto tensioner indication when the engine is cold.
• The indicator notch is located on the moving side of the drive belt auto tensioner.
3. Visually check entire belt for wear, damage or cracks.
4. If the indicator is out of allowable working range or belt is damaged, replace the belt. Refer to MA-15
.
DRIVE BELT TENSION
There is no manual drive belt tension adjustment. The driv e belt tension is automatically adjusted by the drive
belt auto tensioner.
ENGINE COOLANT
ENGINE COOLANT : InspectionINFOID:0000000005403133
LEVEL CHECK
1. Drive belt 2. Power steering pump pulley 3. Generator pulley
4. Crankshaft pulley 5. A/C compressor6. Idler pulley
7. Cooling fan pulley 8. Water pump pulley9. Drive belt auto tensioner
A. Allowable working range
LBIA0391E
Revision: April 20092010 QX56

MA-16
< ON-VEHICLE MAINTENANCE >
ENGINE MAINTENANCE
• Check if the engine coolant reservoir tank level is within MIN toMAX level when engine is cool.
• Adjust engine coolant level as necessary.
CHECKING COOLING SYSTEM FOR LEAKS
WARNING:
Never remove the radiator or reservoir cap when th e engine is hot. Serious burns could occur from
high-pressure engine coolant escaping from the radiator or reservoir.
• To check for leakage, apply pressure to the cooling system at the
reservoir filler neck using suitable tool and Tool.
CAUTION:
Higher pressure than specified may cause radiator damage.
NOTE:
In case that engine coolant decreases, replenish cooling system
with engine coolant.
• If any concerns are found, repair or replace damaged parts.
CHECKING RESERVOIR CAP
• Check reservoir cap relief pressure using suitable tool and Tool.
NOTE:
Apply engine coolant to the cap seal.
• Replace the reservoir cap if there is any damage in the negative- pressure valve, or if the open-valve pressure is outside of the limit.
CHECKING RADIATOR CAP
Inspect the radiator cap.
NOTE:
Thoroughly wipe out the radiator filler neck to remove any waxy resi-
due or foreign material.
• Replace the cap if the metal plunger cannot be seen around theedge of the black rubber gasket.
• Replace the cap if deposits of waxy residue or other foreign mate- rial are on the black rubber gasket or the metal retainer.
SMA412B
Tool number : EG17650301 (J-33984-A)
Leakage test pressure : 137 kPa (1.4 kg/cm, 20 psi)
WBIA0612E
Tool number : EG17650301 (J-33984-A)
Standard : 95 - 125 kPa (0.97 - 1.28 kg/cm
2, 14 - 18 psi)
WBIA0611E
PBIC2816E
Revision: April 20092010 QX56