Nissan Murano Z51 (2012 year). Manual — part 21
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< REMOVAL AND INSTALLATION >
RADIATOR
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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RADIATOR
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• The angle (b) created by the hose clamp pawl and the specified
line (A) must be within
±
15
°
as shown in the figure.
With paint mark
• 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.
Without paint mark
F.
View F
g.
45
°
Vehicle upper
Vehicle rear
JPBIA4777ZZ
JPBIA4295ZZ
Dimension “A”
(
−
1) – (+1) mm
(
−
0.04) – (+0.04) in
JSBIA0241ZZ
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< REMOVAL AND INSTALLATION >
RADIATOR
• To install hose clamps (1), check that the dimension (A) from the
end of the hose clamp on the radiator hose to the hose clamp is
within the reference value.
Inspection
INFOID:0000000007542460
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
• Start and warm up the engine. Visually check that there is no leakage of engine coolant and CVT fluid.
Dimension “A”
1 – 5 mm (0.04 - 0.19 in)
JPBIA3527ZZ
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COOLING FAN
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COOLING FAN
Exploded View
INFOID:0000000007542461
Removal and Installation
INFOID:0000000007542462
REMOVAL
1.
Remove the following parts.
• Engine under cover
• Air duct (inlet): Refer to
.
• Oil level gauge: Refer to
• Battery and battery tray: Refer to
PG-113, "Removal and Installation"
.
2.
Drain engine coolant from radiator. Refer to
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
.
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
6.
Remove battery tray bracket mounting bolts, and move battery tray bracket to aside.
1.
Fan motor (LH)
2.
Fan motor (RH)
3.
Fan shroud
4.
Mounting rubber
5.
Cooling fan (RH)
6.
Cooling fan (LH)
A.
Apply on fan motor shaft
: Vehicle front
: Apply genuine high strength thread locking sealant or equivalent.
: N·m (kg-m, in-lb)
JPBIA1687GB
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< REMOVAL AND INSTALLATION >
COOLING FAN
7.
Remove cooling fan assembly.
CAUTION:
Be careful not to 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
.
Disassembly and Assembly
INFOID:0000000007542463
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. Be careful not to 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:0000000007542464
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:0000000007542465
Removal and Installation
INFOID:0000000007542466
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
.
• Engine cover: Refer to
• Engine under cover
• Front road wheel and tire
• Splash guard (RH): Refer to
EXT-23, "FENDER PROTECTOR : Exploded View"
2.
Drain engine coolant from radiator. Refer to
CAUTION:
• Perform this step when the engine is cold.
• Never spill engine coolant on drive belt.
3.
Remove drive belt. Refer to
EM-17, "Removal and Installation"
.
4.
Remove idler pulleys. Refer to
.
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
: Always replace after every disassembly.
: N·m (kg-m, ft-lb)
: N·m (kg-m, in-lb)
: 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
6.
Remove reservoir tank of power steering oil pump with piping connected, and move it to aside. Refer to
.
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
(AWD models).
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:
Be careful not to drop mounting bolt inside timing chain
case.
b.
Loosen upper mounting bolt (2) slowly, and then turn chain ten-
sioner (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 ten-
sioner (primary).
CAUTION:
Be careful not to 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
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WATER PUMP
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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-
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:0000000007542467
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
• Start and warm up the engine. Visually check that there is no leakage of engine coolant.
SLC943A
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< REMOVAL AND INSTALLATION >
WATER INLET AND THERMOSTAT ASSEMBLY
WATER INLET AND THERMOSTAT ASSEMBLY
Exploded View
INFOID:0000000007542468
Removal and Installation
INFOID:0000000007542469
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
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
.
3.
Remove intake valve timing control solenoid valve (bank 2). Refer to
.
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
: Always replace after every disassembly.
: N·m (kg-m, in-lb)
JPBIA1688GB
A
: Never loosen these screw
JPBIA0261ZZ
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WATER INLET AND THERMOSTAT ASSEMBLY
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Inspection
INFOID:0000000007542470
INSPECTION AFTER REMOVAL
1.
Check valve seating condition at ordinary room temperatures. It should seat tightly.
2.
Check valve operation.
• If the malfunctioning condition, when valve seating at ordinary
room temperature, or measured values are out of the standard,
replace water inlet and thermostat assembly.
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
• Start and warm up the engine. Visually check that there is no leakage of engine coolant.
Thermostat (Standard)
: Refer to
.
SLC949A
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< REMOVAL AND INSTALLATION >
WATER OUTLET AND WATER PIPING
WATER OUTLET AND WATER PIPING
Exploded View
INFOID:0000000007542471
Removal and Installation
INFOID:0000000007542472
REMOVAL
1.
Remove air duct (inlet), radiator core support covers (RH and LH), air cleaner cases (upper and lower)
with mass air flow sensor and air duct assembly. Refer to
2.
Remove engine cover. Refer to
3.
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
CAUTION:
1.
Heater hose
2.
Clamp
3.
Water hose
4.
Clamp
5.
Water outlet
6.
Gasket
7.
Gasket
8.
Water connector
9.
O-ring
10. Water bypass pipe
11.
Clamp
12.
Water hose
13. Heater pipe
14.
Water hose
15.
Heater hose
16. Engine coolant temperature sensor
17.
Clamp
18.
Radiator hose (upper)
A.
To heater core
B.
To electric throttle control actuator
C.
To oil cooler
D.
To radiator
: Always replace after every disassembly.
: N·m (kg-m, ft-lb)
: N·m (kg-m, in-lb)
JPBIA1691GB
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WATER OUTLET AND WATER PIPING
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• Perform this step when the engine is cold.
• Never spill engine coolant on drive belt.
4.
Remove battery and battery tray. Refer to
PG-113, "Removal and Installation"
.
5.
Remove CVT fluid charging pipe and CVT fluid level gauge. Refer to
6.
Move CVT control cable aside. Refer to
7.
Remove vacuum tube (front) mounting bolt from water outlet. Refer to
(2WD models) or
(AWD models).
8.
Remove radiator hose (upper) from water outlet.
9.
Remove water hoses and heater hoses.
10. Disconnect harness connectors, and move harness to aside.
11. Remove engine coolant temperature sensor if necessary.
CAUTION:
Be careful not to damage engine coolant temperature sensor.
12. Remove water outlet, heater pipe, water bypass pipe and water connector.
INSTALLATION
CAUTION:
Do not reuse O-rings.
Note the following, and install in the reverse order of removal.
• Securely insert each hose, and install clamp at a position where it does not interfere with the pipe bulge.
• When inserting water bypass pipe and heater pipe into water connector, apply neutral detergent to O-ring.
Inspection
INFOID:0000000007542473
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
• Start and warm up the engine. Visually check that there is no leakage of engine coolant.
Revision: 2013 February
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CO-32
< SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Periodical Maintenance Specification
INFOID:0000000007542474
ENGINE COOLANT CAPACITY (APPROXIMATE)
Unit:
(US qt, lmp qt)
Radiator
INFOID:0000000007542475
Unit: kPa (kg/cm
2
, psi)
Thermostat
INFOID:0000000007542476
Standard
Engine coolant capacity (With reservoir tank at “MAX” level)
9.0 (9-1/2, 7-7/8)
Reservoir tank
0.8 (7/8, 3/4)
Cap relief pressure
Standard
122.3 - 151.7 (1.2 - 1.5, 17.7 - 22.0)
Limit
108 (1.1, 15.6)
Leakage test pressure
156 (1.59, 22.6)
Valve opening temperature
80.5 - 83.5
°
C (177 - 182
°
F)
Maximum valve lift
8.6 mm/95
°
C (0.339 in/203
°
F)
Valve closing temperature
77
°
C (171
°
F)
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DEF-1
DRIVER CONTROLS
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SECTION
DEF
A
B
DEF
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CONTENTS
DEFOGGER
BASIC INSPECTION . . . . . . . . .
DIAGNOSIS AND REPAIR WORK FLOW . . .
Work Flow . . . . . . . . . . . . . . . .....
SYSTEM DESCRIPTION . . . . . . . ..
REAR WINDOW DEFOGGER SYSTEM . . . .
WITH BOSE SYSTEM . . . . . . . . . . . .....
WITH BOSE SYSTEM : System Diagram . . . .....
WITH BOSE SYSTEM : System Description . . ....
WITH BOSE SYSTEM : Component Parts Loca-
tion . . . . . . . . . . . . . . . . . . ....
WITH BOSE SYSTEM : Component Description . ..
WITHOUT BOSE SYSTEM . . . . . . . . . .....
WITHOUT BOSE SYSTEM : System Diagram . .....
WITHOUT BOSE SYSTEM : System Description
. ..
WITHOUT BOSE SYSTEM : Component Parts
Location . . . . . . . . . . . . . . . . .....
WITHOUT BOSE SYSTEM : Component Descrip-
tion . . . . . . . . . . . . . . . . . . ....
DIAGNOSIS SYSTEM (BCM) . . . . . . . .
COMMON ITEM . . . . . . . . . . . . . . ...
COMMON ITEM : CONSULT Function (BCM -
COMMON ITEM) . . . . . . . . . . . . . ...
REAR WINDOW DEFOGGER . . . . . . . . .....
REAR WINDOW DEFOGGER : CONSULT Func-
tion (BCM - REAR DEFOGGER) . . . . . . . ..
DTC/CIRCUIT DIAGNOSIS . . . . . . .
POWER SUPPLY AND GROUND CIRCUIT . ..
Diagnosis Procedure . . . . . . . . . . . ...
REAR WINDOW DEFOGGER SWITCH . . .
Description . . . . . . . . . . . . . . . ..
Component Function Check . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
REAR WINDOW DEFOGGER RELAY . . . .
Description . . . . . . . . . . . . . . . ...
Component Function Check . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
Component Inspection . . . . . . . . . . . .
REAR WINDOW DEFOGGER . . . . . . ..
Description . . . . . . . . . . . . . . . ...
Component Function Check . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
Component Inspection . . . . . . . . . . . .
DOOR MIRROR DEFOGGER . . . . . . ...
Description . . . . . . . . . . . . . . . ...
Component Function Check . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
DRIVER SIDE DOOR MIRROR DEFOGGER ...
Description . . . . . . . . . . . . . . . ...
Component Function Check . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
Component Inspection . . . . . . . . . . . .
PASSENGER SIDE DOOR MIRROR DEFOG-
GER . . . . . . . . . . . . . . . . ...
Description . . . . . . . . . . . . . . . ...
Component Function Check . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
Component Inspection . . . . . . . . . . . .
REAR WINDOW DEFOGGER SYSTEM . . ..
Wiring Diagram - DEFOGGER SYSTEM - . . . ..
ECU DIAGNOSIS INFORMATION . . . ..
BCM (BODY CONTROL MODULE) . . . . .
Reference Value . . . . . . . . . . . . . ..
Wiring Diagram - BCM - . . . . . . . . . . ..
Fail-safe . . . . . . . . . . . . . . . . ...
DTC Inspection Priority Chart . . . . . . . ...
DTC Index . . . . . . . . . . . . . . . ...
Revision: 2013 February
2012 MURANO
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