Infiniti QX56 (Z62). Manual — part 921
RECOMMENDED FLUIDS AND LUBRICANTS
MA-11
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C
D
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B
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A
Anti-Freeze Coolant Mixture Ratio
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The engine cooling system is filled at the factory with a high-quality, year-round, anti-freeze coolant solution.
The anti-freeze solution contains rust and corrosion inhibitors. Therefore, additional cooling system additives
are not necessary.
CAUTION:
When adding or replacing coolant, be sure to use only Genuine NISSAN Long Life Antifreeze/Coolant
(blue) or equivalent with the proper mixture ratio of 50% anti-freeze and 50% demineralized or distilled
water.
Mixing any other type of coolant or the use of non-distilled water will reduce the life expectancy of the
factory-fill coolant.
1.
API certification mark
2.
API service symbol
SAIA1514E
For outside temperatures down to:
Genuine NISSAN Anti-freeze
Coolant or equivalent
Demineralized water or dis-
tilled water
°
C
°
F
-35
-30
50%
50%
MA-12
< PERIODIC MAINTENANCE >
ENGINE MAINTENANCE
ENGINE MAINTENANCE
DRIVE BELTS
DRIVE BELTS : Exploded View
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DRIVE BELTS : Checking
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WARNING:
Be sure to perform the these steps when engine is stopped.
• Check that the indicator (C) (notch on fixed side) of each auto-tensioner is within the possible use range (A).
NOTE:
• Check the each auto-tensioners indication when the engine is cold.
• When new drive belts is installed, the indicator (notch on fixed side) should be within the range (B) in the
figure.
• Visually check all drive belts for wear, damage or cracks.
• If the indicator (notch on fixed side) is out of the possible use range or drive belts are damaged, replace drive
belts.
DRIVE BELTS : Tension Adjustment
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ENGINE COOLANT
ENGINE COOLANT : Inspection
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LEVEL
1.
Drive belt
2.
Power steering oil pump pulley
3.
Alternator pulley
4.
Crankshaft pulley
5.
A/C compressor
6.
Idler pulley
7.
Cooling fan pulley
8.
Water pump pulley
9.
Drive belt auto-tensioner
A.
Possible use range
B.
Range when new drive belt is in-
stalled
C.
Indicator
D.
View D
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ENGINE MAINTENANCE
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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 the
radiator 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 decreases, fill radiator with engine coolant.
• If anything is found, repair or replace damaged parts.
ENGINE COOLANT : Draining
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WARNING:
• Never remove radiator cap and reservoir tank cap when engine is hot. Serious burns could occur
from high-pressure engine coolant 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 coolant in the system, open water drain plug on cylinder block. Refer
to
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 : Refilling
INFOID: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
.
A
: MAX
B
: MIN
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Testing pressure
: Refer to
.
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2
: Front under cover
: Vehicle front
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MA-14
< PERIODIC MAINTENANCE >
ENGINE MAINTENANCE
If water drain plug on cylinder block is removed, close and tighten it. Refer to
2.
Check that each hose clamp is firmly tightened.
3.
Remove air relief plug (1) on heater hose.
4.
Fill radiator, and reservoir tank, to specified level.
• Pour engine coolant through engine coolant filler neck
slowly of less than 3 (2-5/8 lmp qt) a minute to allow air
in system to escape.
• Use Genuine NISSAN Long Life Antifreeze/Coolant or
equivalent mixed with water (distilled or demineralized).
Refer to
MA-10, "Fluids and Lubricants"
5.
When engine coolant overflows air relief hole on heater hose, install air relief plug with clamp. Then refill
radiator with engine coolant.
6.
Install radiator cap.
7.
Install reservoir tank cap.
8.
Warm up engine until opening thermostat less than 3,000 rpm.
• Check thermostat opening condition by touching radiator hose (lower) to see a flow of warm water.
CAUTION:
Watch water temperature gauge so as not to overheat engine.
9.
Stop the engine and cool down to less than approximately 50
°
C (122
°
F).
• Cool down using fan to reduce the time.
• If necessary, refill radiator up to filler neck with engine coolant.
10. Refill reservoir tank to “MAX” level line with engine coolant if necessary.
11. Repeat steps 6 through 10 two or more times with reservoir tank cap installed until engine coolant level no
longer drops.
: 1.96 N·m (0.2 kg-m, 17 in-lb)
2.
Engine cover
: Vehicle front
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Engine coolant capacity
: Refer to
"Periodical Maintenance S
pecification"
(With reservoir tank at
“MAX” level)
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Reservoir tank engine
coolant capacity
"Periodical Maintenance Sp
ecification"
.
(At “MAX” level)
A
: MAX
B
: MIN
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