Murano Cross Cabriolet Z51 (2011 year). Manual - part 18

 

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Murano Cross Cabriolet Z51 (2011 year). Manual - part 18

 

 

ENGINE COOLANT

CO-9

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4.

Check drained engine coolant for contaminants such as rust, corrosion or discoloration.
If contaminated, flush the engine cooling system. Refer to 

CO-10, "Flushing"

.

Refilling

INFOID:0000000006939264

CAUTION:

• Do not put additive such as waterleak preventive, sine it may cause cooling waterway clogging.
• When refilling use Genuine NISSAN Long Life Antifreeze/Coolant (blue) or equivalent in its quality

mixed with water (distilled or demineralized). Refer to 

MA-10, "Fluids and Lubricants"

.

1.

Install reservoir tank if removed and radiator drain plug.

CAUTION:

Be sure to clean drain plug and install with new O-ring.

If water drain plugs on cylinder block are removed, close and tighten them. Refer to 

EM-107, "Dis-

assembly and Assembly"

.

2.

Check that each hose clamp has been firmly tightened.

3.

Remove air duct assembly and air cleaner cases (upper and lower) assembly. Refer to 

EM-26, "Exploded

View"

.

4.

Disconnect heater hose (1) at the position (

) in the figure.

5.

Fill radiator to specified level.

CAUTION:

Never adhere the engine coolant to electronic equipments.
(alternator etc.)
• Pour engine coolant through engine coolant filler neck

slowly of less than 2  (2-1/8 US qt, 1-3/4 lmp qt) a minute
to allow air in system to escape.

• When engine coolant overflows disconnected heater

hose, connect heater hose, and continue filling the engine
coolant.

6.

Refill reservoir tank to “MAX” level line with engine coolant.

Tightening torque

: Refer to 

CO-13, "Exploded View"

.

: Vehicle front

JPBIA1685ZZ

Engine coolant capacity 
(With reservoir tank at “MAX”level)

: Refer to 

CO-28, "Periodical Maintenance Specifica-

tion"

.

Reservoir tank engine coolant capacity
(At “MAX” level)

: Refer to 

CO-28, "Periodical Maintenance Specification"

.

A

: MAX 

B

:  MIN

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CO-10

< PERIODIC MAINTENANCE >

ENGINE COOLANT

7.

Install air duct assembly and air cleaner cases (upper and lower) assembly. Refer to 

EM-26, "Exploded

View"

.

8.

Install radiator cap.

9.

Warm up engine until opening thermostat. Standard for warming-up time is approximately 10 minutes at
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.

10. 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.

CAUTION:

Never adhere the engine coolant to electronic equipments. (alternator etc.)

11. Refill reservoir tank to “MAX” level line with engine coolant.

12. Repeat steps 7 through 10 two or more times with radiator cap installed until engine coolant level no

longer drops. 

13. Check cooling system for leakage with engine running.

14. Warm up the engine, and check for sound of engine coolant flow while running engine from idle up to

3,000 rpm with heater temperature controller set at several position between “COOL” and “WARM”.
• Sound may be noticeable at heater unit.

15. Repeat step 13 three times.
16. If sound is heard, bleed air from cooling system by repeating step 5, and steps from 7 to 14 until engine

coolant level no longer drops. 

Flushing

INFOID:0000000006939265

1.

Install reservoir tank if removed and radiator drain plug.

CAUTION:

Be sure to clean drain plug and install with new O-ring.

If water drain plugs on cylinder block are removed, close and tighten them. Refer to 

EM-107, "Dis-

assembly and Assembly"

.

2.

Remove air duct assembly and air cleaner cases (upper and lower) assembly. Refer to 

EM-26, "Exploded

View"

.

3.

Disconnect heater hose (1) at the position (

) in the figure.

4.

 Fill radiator and reservoir tank with water and reinstall radiator cap.

CAUTION:

Never adhere the water to electronic equipments. (alternator etc.)
• When water overflows disconnected heater hose, connect heater hose, and continue filling the

water.

5.

Run the engine and warm it up to normal operating temperature.

6.

Rev the engine two or three times under no-load.

7.

Stop the engine and wait until it cools down.

8.

Drain water from the system. Refer to 

CO-8, "Draining"

.

Tightening torque

: Refer to 

CO-13, "Exploded View"

.

: Vehicle front

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ENGINE COOLANT

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9.

Repeat steps 1 through 8 until clear water begins to drain from radiator.

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RADIATOR

RADIATOR

RADIATOR CAP

RADIATOR CAP : Inspection

INFOID:0000000006939266

• Check valve seat (A) of radiator cap. 
- Check if valve seat is swollen to the extent that the edge of the

plunger (B) cannot be seen when watching it vertically from the
top.

- Check if valve seat has no soil and damage.
- Check that there is no dirt or damage on the valve seat of radiator

cap negative-pressure valve. 

- Check that there are no unusualness in the opening and closing

conditions of negative-pressure valve.

• Check radiator cap relief pressure.

- When connecting radiator cap to the radiator cap tester (commer-

cial service tool) and the radiator cap tester adapter (commercial
service tool) (A), apply engine coolant to the cap seal surface. 

• Replace radiator cap if there is an unusualness related to the above three.

CAUTION:

When installing radiator cap, thoroughly wipe out the radiator pipe (upper) filler neck to remove any
waxy residue or foreign material.

RADIATOR

RADIATOR : Inspection

INFOID:0000000006939267

Check radiator for mud or clogging. If necessary, clean radiator as follows:

CAUTION:

• Never bend or damage radiator fins.
• When radiator is cleaned without removal, remove all surrounding parts such as radiator cooling fan

assembly and horns. Then tape harness and connectors to prevent water from entering.

1.

Apply water by hose to the back side of the radiator core vertically downward.

2.

Apply water again to all radiator core surfaces once per minute.

3.

Stop washing if any stains no longer flow out from radiator.

4.

Blow air into the back side of radiator core vertically downward.
• Use compressed air lower than 490 kPa (5 kg/cm

2

, 71 psi) and keep distance more than 30 cm (11.81

in). 

5.

Blow air again into all the radiator core surfaces once per minute until no water sprays out.

JPBIA1961ZZ

Standard and limit

: Refer to 

CO-28, "Radiator"

.

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RADIATOR

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REMOVAL AND INSTALLATION

RADIATOR

Exploded View

INFOID:0000000006939268

1.

Reservoir tank cap

2.

Reservoir tank

3.

Clamp

4.

Reservoir tank hose

5.

Radiator cap

6.

Radiator cap adapter

7.

Radiator pipe (upper)

8.

Clamp

9.

Radiator hose (upper)

10. Radiator hose (upper)

11.

O-ring

12. Drain plug

13. Water drain hose

14. Mounting rubber (upper)

15. Radiator upper clip

16. Radiator

17. Mounting rubber (lower)

18. Radiator pipe (lower)

19. Radiator hose (lower)

20. Clamp

21. CVT fluid cooler hose

22. CVT fluid cooler hose

23. CVT fluid cooler pipe

24. CVT fluid cooler hose

25. Grommet

26. Cooling fan assembly

27. Radiator hose (lower)

A.

To water outlet

B.

To transaxle assembly

C.

To water inlet

 : N·m (kg-m, in-lb)

 : Always replace after every disassembly.

JPBIA2760GB

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RADIATOR

Removal and Installation

INFOID:0000000006939269

REMOVAL

WARNING:

Never remove radiator cap when engine is hot. Serious burns could occur from high-pressure engine
coolant escaping from radiator. Wrap a thick cloth around the cap. Slowly turn it a quarter of a turn to
release built-up pressure. Carefully remove radiator cap by turning it all the way.
1.

Remove the following parts:
• Engine under cover.
• Radiator core support covers (RH and LH): Refer to 

EM-26, "Exploded View"

.

• Air duct (inlet): Refer to 

EM-26, "Exploded View"

.

• Front grille: Refer to 

EXT-18, "Exploded View"

.

• Horn: Refer to 

HRN-6, "Exploded View"

.

• Hood lock: Refer to 

DLK-186, "Exploded View"

.

2.

Drain engine coolant from radiator. Refer to 

CO-8, "Draining"

.

CAUTION:

• Perform this step when the engine is cold.
• Never spill engine coolant on drive belt.

3.

Disconnect reservoir tank hose from radiator pipe (upper).

4.

Disconnect CVT fluid cooler hoses from radiator.
• Install blind plug to avoid leakage of CVT fluid.

5.

Remove radiator cap adapter and each radiator hoses (upper) and radiator pipe (upper) assembly.

CAUTION:

Never allow engine coolant to contact drive belt.

6.

Disconnect radiator hose (lower) from radiator.

7.

Remove condenser. Refer to 

HA-37, "Exploded View"

.

CAUTION:

Never damage condenser core.

8.

Remove each radiator upper clips (2) by pulling the tabs (A) out-
side to release the lock (B) and then remove each mounting rub-
bers (upper) (1).

CAUTION:

Never pull the tabs outside excessively to prevent it from
damping.

9.

Lift up and remove radiator (1) from front of radiator core support
(2).

CAUTION:

Never damage or scratch on radiator core.

INSTALLATION

Note the following, and install in the reverse order of removal.

CAUTION:

Do not reuse O-rings.

Radiator Upper Clip

C

: Mounting pin

: Vehicle front

JPBIA1689ZZ

: Vehicle front

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RADIATOR

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Install each radiator upper clips on radiator core connection as follows:

1.

Install each mounting rubbers (upper) (1) on mounting pins (A)
of radiator.

2.

Align each radiator upper clips (2) with radiator core connection
(B), then insert each radiator upper clips straight into radiator
core connections until a click is heard.

3.

After connecting each radiator upper clips, use the following
method to check it is fully connected.
• Visually confirm that each radiator upper clips are connected

to radiator core connections.

• Move each radiator upper clips and the radiator forward and backward to check they are securely con-

nected.

Radiator hose

CAUTION:

• Use genuine mounting bolts for the cooling fan assembly and strictly observe the tightening torque.

(Breakage prevention for radiator)

NOTE:
• Insert the radiator hose (1) all the way to the stopper (2) or by 33 mm (1.30 in) (hose without a stopper).

• For the orientation of the hose clamp pawl, refer to the figure.

*Refer to the illustrations for the specific position each hose clamp tab.

: Vehicle front

JPBIA1690ZZ

Unit mm (in)

A.

Radiator side

B.

Engine side

JPBIA4294GB

Radiator hose

Hose end

Paint mark

Position of hose clamp*

Radiator hose (upper)

Radiator side

Right side

C

Radiator pipe radiator side

No marking

B

Radiator pipe engine side

No marking

C

Engine side

Upper 

D

Radiator hose (lower)

Radiator side

Upper

A

Radiator pipe radiator side

No marking

A

Radiator pipe engine side

No marking

A

Engine side

Upper

E

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< REMOVAL AND INSTALLATION >

RADIATOR

• The angle (b) created by the hose clamp pawl and the specified

line (A) must be within 

±

15

°

 as shown in the figure.

• To install hose clamps (1), check that the dimension (A) from the

end of the paint mark (2) on the radiator hose to the hose clamp is
within the reference value. 

Inspection

INFOID:0000000006939270

INSPECTION AFTER INSTALLATION

• Check for leakage of engine coolant using the radiator cap tester adapter (commercial service tool) and the

radiator cap tester (commercial service tool). Refer to 

CO-8, "Inspection"

.

• Start and warm up the engine. Visually check that there is no leakage of engine coolant and CVT fluid.

F.

View F

g.

45

°

Vehicle upper

Vehicle rear

JPBIA4777ZZ

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Dimension “A”

(

1) – (+1) mm

(

0.04) – (+0.04) in

JSBIA0241ZZ

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COOLING FAN

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COOLING FAN

Exploded View

INFOID:0000000006939271

Removal and Installation

INFOID:0000000006939272

REMOVAL

1.

Remove the following parts.
• Engine under cover
• Air duct (inlet): Refer to 

EM-26, "Exploded View"

.

• Oil level gauge: Refer to 

EM-95, "Exploded View"

.

• Battery and battery tray: Refer to 

PG-112, "Removal and Installation"

.

2.

Drain engine coolant from radiator. Refer to 

CO-8, "Draining"

.

CAUTION:

• Perform this step engine is cold.
• Never spill engine coolant on drive belt.

3.

Remove radiator cap adapter and each radiator hoses (upper) and radiator pipe (upper) assembly. Refer
to 

CO-13, "Exploded View"

.

4.

Disconnect harness connector from fan motors (RH and LH), and move harness to aside.

5.

Disconnect harness connector from crash zone sensor, and move harness to aside. Refer to 

SR-26,

"Exploded View"

.

1.

Fan motor (LH)

2.

Fan motor (RH)

3.

Cooling fan register

4.

Fan shroud

5.

Mounting rubber

6.

Cooling fan (RH)

7.

Cooling fan (LH)

A.

Apply on fan motor shaft

: Vehicle front

: N·m (kg-m, in-lb)

 

: Apply genuine high strength thread locking sealant or equivalent.

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COOLING FAN

6.

Remove battery tray bracket mounting bolts, and move battery tray bracket to aside.

7.

Remove cooling fan assembly.

CAUTION:

Never damage or scratch on radiator core.

INSTALLATION

Note the following, and install in the reverse order of removal.

CAUTION:

Only use genuine parts for cooling fan mounting bolt and observe the specified torque (to prevent
radiator from being damaged).
NOTE:
Cooling fans are controlled by ECM. For details, refer to 

EC-40, "COOLING FAN CONTROL : System

Description"

.

Disassembly and Assembly

INFOID:0000000006939273

DISASSEMBLY

1.

Remove cooling fan mounting nuts, and then remove the cooling fans (RH and LH).

2.

Remove fan motors (RH and LH).

ASSEMBLY

Note the following, and assemble in the reverse order of disassembly.

CAUTION:

RH and LH cooling fans are different. Never misassemble them.
• Install each fan in the following position.

• Secure the harness tightly to the fan shroud to prevent the fan rotation area from being loose.

Inspection

INFOID:0000000006939274

INSPECTION AFTER DISASSEMBLY

Cooling Fan

Inspect cooling fan for crack or unusual bend.
• If anything is found, replace cooling fan.

Right side

: 11 blades

Left side

: 9 blades

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WATER PUMP

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WATER PUMP

Exploded View

INFOID:0000000006939275

Removal and Installation

INFOID:0000000006939276

CAUTION:

• When removing water pump assembly, be careful not to get engine coolant on drive belt.
• Water pump cannot be disassembled and should be replaced as a unit.
• After installing water pump, connect hose and clamp securely, then check for leakage using the radi-

ator cap tester (commercial service tool) and the radiator cap tester adapter (commercial service
tool).

REMOVAL

1.

Remove the following parts.
• Air duct (inlet): Refer to 

EM-26, "Exploded View"

.

• Engine cover: Refer to 

EM-24, "Exploded View"

.

• Engine under cover
• Front road wheel and tire
• Splash guard (RH): Refer to 

EXT-26, "FENDER PROTECTOR : Exploded View"

.

2.

Drain engine coolant from radiator. Refer to 

CO-8, "Draining"

.

CAUTION:

• Perform this step when the engine is cold.
• Never spill engine coolant on drive belt.

3.

Remove drive belt. Refer to 

EM-14, "Removal and Installation"

.

4.

Remove idler pulleys. Refer to 

EM-25, "Exploded View"

.

1.

Timing chain tensioner (primary)

2.

Valve timing control cover gasket 
(bank 1)

3.

Valve timing control cover (bank 1)

4.

Water drain plug (front)

5.

Water pump cover

6.

O-ring

7.

O-ring

8.

Water pump

A.

Apply engine coolant

B.

Identify with white mark

 : N·m (kg-m, ft-lb)

 : N·m (kg-m, in-lb)

 : Always replace after every disassembly.

 : Should be lubricated with oil.

 : Sealing point

JPBIA2460GB

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< REMOVAL AND INSTALLATION >

WATER PUMP

5.

Remove reservoir tank of radiator. Refer to 

CO-13, "Exploded View"

.

6.

Remove reservoir tank of power steering oil pump with piping connected, and move it to aside. Refer to

ST-55, "Exploded View"

.

7.

Support oil pan (lower) bottom with transmission jack.

8.

Remove engine mounting insulator (RH), engine mounting bracket (RH) and upper torque rod. Refer to

EM-67, "Exploded View"

.

9.

Remove water drain plug (front) on water pump side of cylinder block to drain engine coolant from engine
inside.

10. Remove valve timing control cover (bank 1) and water pump cover from front timing chain case.

• Use the seal cutter [SST: KV10111100 (J-37228)] to cut liquid gasket for removal.

11. Remove timing chain tensioner (primary) as follows:

a.

Remove lower mounting bolt (1).

CAUTION:

Never drop mounting bolt inside timing chain case.

b.

Loosen upper mounting bolt (2) slowly, and then turn chain
tensioner (primary) (3) on the mounting bolt so that plunger (4)
is fully expanded.
NOTE:
Even if plunger is fully expanded, it is not dropped from the body
of timing chain tensioner (primary).

c.

Turn crankshaft pulley clockwise so that timing chain on the tim-
ing chain tensioner (primary) side is loose.

d.

Remove upper mounting bolt, and then remove timing chain
tensioner (primary).

CAUTION:

Never drop mounting bolt inside timing chain case.

12. Remove water pump as follows:

JPBIA0085ZZ

PBIC4820E

PBIC3576E

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WATER PUMP

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a.

Remove three water pump mounting bolts. Secure a gap
between water pump gear and timing chain, by turning crank-
shaft pulley counterclockwise until timing chain looseness on
water pump sprocket becomes maximum. 

b.

Screw M8 bolts [pitch: 1.25 mm (0.0492 in) length: approxi-
mately 50 mm (1.97 in)]  into  water  pumps  upper  and  lower
mounting bolt holes until they reach timing chain case. Then,
alternately tighten each bolt for a half turn, and pull out water
pump.

CAUTION:

• Pull straight out while preventing vane from contacting

socket in installation area.

• Remove water pump without causing sprocket to contact

timing chain.

c.

Remove M8 bolts and O-rings from water pump.

CAUTION:

Never disassemble water pump.

INSTALLATION

CAUTION:

Do not reuse O-rings.

1.

Install new O-rings to water pump.

CAUTION:

Do not reuse O-rings.
• Apply engine oil and engine coolant to O-rings as shown in the

figure.

• Locate O-ring with white paint mark to engine front side.

2.

Install water pump.

CAUTION:

Never allow cylinder block to nip O-rings when installing
water pump.
• Check that timing chain and water pump sprocket are

engaged.

• Insert water pump by tightening mounting bolts alternately and

evenly.

3.

Install timing chain tensioner (primary) as follows:

PBIC1193E

JLC357B

PBIC1397E

SLC031B

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< REMOVAL AND INSTALLATION >

WATER PUMP

a.

Turn crankshaft pulley clockwise so that timing chain on the tim-
ing chain tensioner (primary) side is loose.

b.

Pull plunger stopper tab (A) up (or turn lever downward) so as to
remove plunger stopper tab from the ratchet of plunger (D).
NOTE:
Plunger stopper tab and lever (C) are synchronized.

c.

Push plunger into the inside of tensioner body.

d.

Hold plunger in the fully compressed position by engaging
plunger stopper tab with the tip of ratchet.

e.

To secure lever, insert stopper pin (E) through hole of lever into
tensioner body hole (B).
• The lever parts and the tab are synchronized. Therefore, the

plunger will be secured under this condition.

NOTE:
Figure shows the example of 1.2 mm (0.047 in) diameter thin screwdriver being used as the stopper pin.

f.

Install timing chain tensioner (primary).
• Remove dust and foreign material completely from backside of timing chain tensioner (primary) and

from installation area of rear timing chain case.

g.

Remove stopper pin (A).

h.

Check again that timing chain and water pump sprocket are engaged.

4.

Install valve timing control cover (bank 1) and water pump cover as follows:

a.

Before installing, remove all traces of old liquid gasket from mating surface of water pump cover using
scraper. Also remove traces of old liquid gasket from the mating surface of front timing chain case.

b.

Apply a continuous bead of liquid gasket with the tube presser
(commercial service tool) to mating surface of water pump cover
(1).

Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-22, "Recommended Chemical Products and Sealants"

.

CAUTION:

Attaching should be done within 5 minutes after coating.

c.

Tighten mounting bolts.

PBIC4820E

JPBIA0118ZZ

JPBIA1774ZZ

a

φ

2.3 - 3.3 mm (0.091 - 0.130 in)

JPBIA1722ZZ

Revision: 2012 March

2011 Murano CrossCabriolet

WATER PUMP

CO-23

< REMOVAL AND INSTALLATION >

C

D

E

F

G

H

I

J

K

L

M

A

CO

N

P

O

5.

Install water drain plug (front) on water pump side of cylinder block.
• Apply liquid gasket to the thread of water drain plug (front).

Use Genuine RTV Silicone Sealant or equivalent. Refer to 

GI-22, "Recommended Chemical Prod-

ucts and Sealants"

.

6.

Install in the reverse order of removal after this step.
• After starting engine, let idle for three minutes, then rev engine up to 3,000 rpm under no load to

purge air from the high-pressure chamber of chain tensioner. Engine may produce a rattling
noise. This indicates that air still remains in the chamber and is not a matter of concern.

Inspection

INFOID:0000000006939277

INSPECTION AFTER REMOVAL

• Check for badly rusted or corroded water pump body assembly.
• Check for rough operation due to excessive end play.
• If anything is found, replace water pump.

INSPECTION AFTER INSTALLATION

• Check for leakage of engine coolant using the radiator cap tester adapter (commercial service tool) and the

radiator cap tester (commercial service tool). Refer to 

CO-8, "Inspection"

.

• Start and warm up the engine. Visually check that there is no leakage of engine coolant.

SLC943A

Revision: 2012 March

2011 Murano CrossCabriolet

CO-24

< REMOVAL AND INSTALLATION >

WATER INLET AND THERMOSTAT ASSEMBLY

WATER INLET AND THERMOSTAT ASSEMBLY

Exploded View

INFOID:0000000006939278

Removal and Installation

INFOID:0000000006939279

REMOVAL

1.

Drain engine coolant from radiator drain plug at the bottom of radiator, and from water drain plug at the
front of cylinder block. Refer to 

CO-8, "Draining"

 and 

EM-75, "Setting"

.

CAUTION:

• Perform this step when the engine is cold.
• Never spill engine coolant on drive belt.

2.

Remove reservoir tank of radiator, and move it aside. Refer to 

CO-13, "Exploded View"

.

3.

Remove intake valve timing control solenoid valve (bank 2). Refer to

EM-52, "Exploded View"

.

4.

Disconnect radiator hose (lower) from water inlet and thermostat assembly.

5.

Remove water inlet and thermostat assembly (1).

CAUTION:

Never disassemble water inlet and thermostat assembly.
Replace them as a unit, if necessary.

INSTALLATION

Note the following, and install in the reverse order of removal.
• Be careful not to spill engine coolant over engine room. Use rag to absorb engine coolant.

1.

Gasket

2.

Water inlet and thermostat assembly

3.

Clamp

4.

Radiator hose (lower)

A.

To radiator

 : N·m (kg-m, in-lb)

 : Always replace after every disassembly.

JPBIA1688GB

A

: Never loosen these screw

JPBIA0261ZZ

Revision: 2012 March

2011 Murano CrossCabriolet

 

 

 

 

 

 

 

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