2011 INFINITI QX56 Factory Service Manual

wheel size battery location fuel cap release AUX oil capacities fuel additives

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Page 3681 of 5598

INFINITI QX56 2011 Factory Service Manual
RECOMMENDED FLUIDS AND LUBRICANTSMA-11
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Anti-Freeze Coolant Mixture RatioINFOID:0000000006287733
The engine cooling system is filled at the fac

Page 3682 of 5598

INFINITI QX56 2011 Factory Service Manual
MA-12
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ENGINE MAINTENANCE
ENGINE MAINTENANCE
DRIVE BELTS
DRIVE BELTS : Exploded ViewINFOID:0000000006394835
DRIVE BELTS : CheckingINFOID:0000000006394836
WARNING:
Be sure to p

Page 3683 of 5598

INFINITI QX56 2011 Factory Service Manual
ENGINE MAINTENANCEMA-13
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Check if the reservoir tank engine coolant level is within the “MIN”
to “MAX” when the engine is cool.
Adj

ENGINE MAINTENANCEMA-13
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Check if the reservoir tank engine coolant level is within the “MIN”
to “MAX” when the engine is cool.
Adjust the engine coolant level if necessary. WARNING:
Never remove reservoir tank cap when engine is hot.
LEAKAGE
To check for leakage, apply pressure to the cooling system with theradiator cap tester and radiator cap tester adapter (commercial
service tool) (A).
WARNING:
Never remove radiator cap and reservoir tank cap when
engine is hot. Serious burns could occur from high-pressure
engine coolant escaping from water inlet.
CAUTION:
Higher test pressure than specified may cause radiator dam-
age.
NOTE:
In a case that engine coolant decreas es, fill radiator with engine coolant.
If anything is found, repair or replace damaged parts.
ENGINE COOLANT : DrainingINFOID:0000000006394845
WARNING:
Never remove radiator cap and reservoir tank cap when engine is hot. Serious burns could occur
from high-pressure engine co olant escaping from radiator.
Wrap a thick cloth around the caps. Slowly turn them a quarter of a turn to release built-up pressure.
Carefully remove the caps by turning it all the way.
1. Open radiator drain plug (1) at the bottom of radiator, and then remove radiator cap and reservoir tank cap.
When draining all of engine cool ant in the system, open water drai n plug on cylinder block. Refer
to EM-103, "
Setting".
2. Remove reservoir tank if necessary, and drain engine coolant and clean reservoir tank before installing.
3. Check drained engine coolant for contaminants such as rust, corrosion or discoloration. If contaminated, flush the engine cooling system. Refer to MA-15, "
ENGINE COOLANT : Flushing".
ENGINE COOLANT : RefillingINFOID:0000000006394846
1. Install reservoir tank if removed, and radiator drain plug.
CAUTION:
Be sure to clean drain plug and install with new O-ring. Refer to CO-13, "
Exploded View".
A: MAX
B: MIN
JPBIA0102ZZ
Testing pressure : Refer to CO-23, "Radiator".
JPBIA3432ZZ
2 : Front under cover
: Vehicle front
JPBIA3430ZZ
Revision: 2010 May2011 QX56

Page 3684 of 5598

INFINITI QX56 2011 Factory Service Manual
MA-14
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ENGINE MAINTENANCE
If water drain plug on cylinder block is removed, close and tighten it. Refer to EM-107, "Disassem-
bly and Assembly".
2. Check that each hose clamp

Page 3685 of 5598

INFINITI QX56 2011 Factory Service Manual
ENGINE MAINTENANCEMA-15
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12. Check cooling system for leakage with engine running.
13. Warm up the engine, and check for sound of engine coolan

Page 3686 of 5598

INFINITI QX56 2011 Factory Service Manual
MA-16
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ENGINE MAINTENANCE
Pull negative-pressure valve to open it, and check that it closecompletely when released.
- Check that there is no dirt or damage on the valve seat

Page 3687 of 5598

INFINITI QX56 2011 Factory Service Manual
ENGINE MAINTENANCEMA-17
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FUEL LINES : InspectionINFOID:0000000006394850
Inspect fuel lines, fuel filler cap and fuel tank for improper attach

ENGINE MAINTENANCEMA-17
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FUEL LINES : InspectionINFOID:0000000006394850
Inspect fuel lines, fuel filler cap and fuel tank for improper attach-
ment, leakage, cracks, damage, loose connections, chafing or
deterioration.
If necessary, repair or replace damaged parts.
AIR CLEANER FILTER
AIR CLEANER FILTER : Removal and InstallationINFOID:0000000006394838
REMOVAL
NOTE:
The viscous paper type filter does not need cleaning between replacement intervals.
Replace the air filter as necessary for periodic maintenance. Refer to MA-6, "
Introduction of Periodic Mainte-
nance".
1. Unhook clips, and lift air cleaner case (upper).
2. Remove air cleaner filter from air cleaner case.
INSTALLATION
Install is the reverse order of removal.
ENGINE OIL
ENGINE OIL : DrainingINFOID:0000000006394841
WARNING:
Be careful not to burn yourself, as th e engine and engine oil may be hot.
Prolonged and repeated contact with used engine oil may cau se skin cancer; try to avoid direct skin
contact with used oil. If skin contact is made, w ash thoroughly with soap or hand cleaner as soon as
possible.
1. Warm up the engine, and check for any oil leaks.
2. Stop the engine and wait for at least 10 minutes.
3. Remove drain plug and oil filler cap to drain the old oil.
ENGINE OIL : RefillingINFOID:0000000006394842
1. Install drain plug with new washer. CAUTION:
Be sure to clean drain plug and install with new washer.
2. Refill with new engine oil. Engine oil specificat ion and viscosity:
Refer to MA-10, "
Fluids and Lubricants".
CAUTION:
The refill capacity depends on the engine oi l temperature and drain time. Use these specifica-
tions for reference only.
Always use oil level gauge to determine the proper amount of engine oil in engine.
A : Engine
B : Fuel line
C : Fuel tank
JPBIA0129ZZ
Tightening torque : Refer to EM-54, "Exploded View".
Engine oil capacity : Refer to LU-17, "
Periodical Maintenance Specification".
Revision: 2010 May2011 QX56

Page 3688 of 5598

INFINITI QX56 2011 Factory Service Manual
MA-18
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ENGINE MAINTENANCE
3. Warm up the engine and check area around drain plug and oil filter for engine oil leakage.
4. Stop the engine and wait for 10 minutes.
5. Check th

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