Nissan Murano Z50 (2004 year). Manual — part 10
HEATER & COOLING UNIT ASSEMBLY
ATC-121
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19. Air mix door motor (driver side)
20. Defroster door lever
21. Max. cool door lever
22. Main link
23. Ventilator door lever
24. Ventilator door link
25. Foot duct (left)
26. Ventilator door
27. Heater pipe support
28. Intake sensor
29. Intake sensor bracket
30. Adaptor cover
31. Expansion valve
32. Evaporator
33. Defroster door
34. Defroster door link
35. Max. cool door link
36. Max. cool door (left)
37. Center case
38. Heater pipe grommet
39. Air mix door
40. Max. cool door (right)
ATC-122
MODE DOOR MOTOR
Revision: 2004 November
2004 Murano
MODE DOOR MOTOR
PFP:27731
Removal and Installation
AJS00102
REMOVAL
1.
Remove BCM. Refer to
BCS-14, "Removal and Installation of BCM"
2.
Remove mounting screws from mode door motor.
3.
Disconnect mode door connector, and then remove mode door
motor.
INSTALLATION
Installation is basically the reverse order of removal.
RJIA1830E
AIR MIX DOOR MOTOR
ATC-123
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AIR MIX DOOR MOTOR
PFP:27732
Removal and Installation
AJS00103
REMOVAL
Driver Side
1.
Set the temperature at 18
°
C (60
°
F), and then disconnect the battery negative cable.
2.
Remove instrument driver lower panel. Refer to
IP-11, "Removal and Installation"
3.
Remove mounting screws, and then remove the air mix door
motor.
4.
Disconnect air mix door motor connector.
Passenger Side
1.
Set the temperature at 18
°
C (60
°
F), and then disconnect the battery negative cable.
2.
Remove blower unit. Refer to
3.
Remove mounting screws, and then remove the air mix door
motor.
4.
Disconnect air mix door motor connector.
INSTALLATION
Installation is basically the reverse order of removal.
RJIA1831E
RJIA1832E
ATC-124
HEATER CORE
Revision: 2004 November
2004 Murano
HEATER CORE
PFP:27140
Removal and Installation
AJS0016C
REMOVAL
1.
Remove heater & cooling unit. Refer to
ATC-118, "HEATER & COOLING UNIT ASSEMBLY"
2.
Remove foot duct (right). Refer to
ATC-128, "Removal of Foot Ducts"
.
3.
Remove mounting screw, and then remove heater core cover.
4.
Remove mounting screw, and then remove heater pipe support and heater pipe grommet.
5.
Slide heater core to passenger side.
INSTALLATION
Installation is basically the reverse order of removal.
RJIA1865E
DUCTS AND GRILLES
ATC-125
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DUCTS AND GRILLES
PFP:27860
Removal and Installation
AJS00104
REMOVAL
Removal of Center Ventilator Grille
1.
Remove center ventilator. Refer to
IP-11, "Removal and Installation"
.
2.
Remove mounting clips, and then remove center ventilator grille.
Removal of Side Ventilator Grille
1.
Remove side ventilator assembly. Refer to
IP-11, "Removal and Installation"
.
2.
Remove mounting screw and clips, and then remove side venti-
lator grille.
1.
Defroster nozzle
2.
Side defroster duct (left)
3.
Ventilator duct
4.
Side defroster grille (left)
5.
Side ventilator grille (left)
6.
Center ventilator grille (left)
7.
Center ventilator grille (right)
8.
Side ventilator grille (right)
9.
Instrument panel
10. Side defroster grille (right)
11. Side defroster duct (right)
RJIA1833E
RJIA1834E
RJIA1835E
ATC-126
DUCTS AND GRILLES
Revision: 2004 November
2004 Murano
Removal of Rear Ventilator Grille
1.
Remove center pillar lower garnish. Refer to
EI-32, "CENTER PILLAR LOWER GARNISH"
2.
Remove mounting clips, and then remove rear ventilator grille.
Removal of Defroster Nozzle, Ducts and Ventilator Ducts
1.
Remove instrument panel assembly. Refer to
IP-11, "Removal and Installation"
2.
Remove side defroster ducts, using power tools.
3.
Remove defroster nozzle, using power tools.
4.
Remove ventilator duct., using power tools.
Removal of Side Defroster Grille
1.
Remove instrument side finisher. Refer to
IP-11, "Removal and Installation"
.
2.
Remove mounting clip, and then remove side defroster grilles.
RJIA1836E
RJIA1837E
RJIA1838E
DUCTS AND GRILLES
ATC-127
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Removal of Rear Ventilator Ducts
1.
Remove center console. Refer to
IP-18, "Removal and Installation"
.
2.
Slide rear ventilator duct 2 toward vehicle rear, and then remove it.
3.
Remove rear ventilator duct 1.
4.
Remove floor carpet. Refer to
EI-34, "Removal and Installation"
5.
Remove rear ventilator duct 3 fixing screws, and then remove rear ventilator duct 3.
RJIA1839E
RJIA1840E
ATC-128
DUCTS AND GRILLES
Revision: 2004 November
2004 Murano
Removal of Foot Ducts
1.
Remove instrument driver lower panel. Refer to
IP-11, "Removal and Installation"
2.
Remove mounting screws, and then remove foot duct (driver
side).
3.
Remove blower unit. Refer to
.
4.
Remove mounting screws, and then remove foot duct (passen-
ger side).
Removal of Floor Ducts
1.
Remove front seats and center console. Refer to
2.
Slide front floor duct downward, and then remove it.
3.
Peel back the floor carpet to a point where the rear floor duct is
visible.
4.
Remove mounting clip, and then remove the rear floor ducts.
INSTALLATION
Installation is basically the reverse order of removal.
RJIA1841E
RJIA1842E
RJIA1843E
RJIA1844E
REFRIGERANT LINES
ATC-129
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REFRIGERANT LINES
PFP:92600
HFC-134a (R-134a) Service Procedure
AJS00105
SETTING OF SERVICE TOOLS AND EQUIPMENT
Discharging Refrigerant
WARNING:
Avoid breathing A/C refrigerant and lubricant vapor or mist. Exposure may irritate eyes, nose and
throat. Remove HFC-134a (R-134a) from A/C system using certified service equipment meeting
requirements of SAE J2210 HFC-134a (R-134a) recycling equipment or J2201 HFC-134a (R-134a)
recovery equipment. If accidental system discharge occurs, ventilate work area before resuming ser-
vice. Additional health and safety information may be obtained from refrigerant and lubricant manu-
facturers.
Evacuating System and Charging Refrigerant
WJIA0614E
WJIA0615E
ATC-130
REFRIGERANT LINES
Revision: 2004 November
2004 Murano
*1
ATC-22, "LUBRICANT RETURN
OPERATION"
.
*2
ATC-146, "Checking for Refrigerant
Leaks"
*3
ATC-148, "CHECKING PROCE-
DURE"
*4
ATC-86, "PERFORMANCE TEST
DIAGNOSIS"
.
*5
ATC-6, "CONTAMINATED REFRIG-
ERANT"
.
RJIA3006E
REFRIGERANT LINES
ATC-131
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Components
AJS00106
Refer to
ATC-8, "Precautions for Refrigerant Connection"
RJIA1845E
ATC-132
REFRIGERANT LINES
Revision: 2004 November
2004 Murano
Removal and Installation of Compressor
AJS00107
REMOVAL
1.
Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2.
Remove the air duct (inlet). Refer to
EM-14, "AIR CLEANER AND AIR DUCT"
.
3.
Remove the engine undercover, using power tools.
4.
Remove mounting nuts from the low-pressure flexible hose and
high-pressure flexible hose.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
5.
Disconnect compressor (magnet clutch) connector.
6.
Remove the A/C compressor belt. Refer to
7.
Remove the idler pulley bracket.
RJIA1846E
RJIA1847E
RJIA1848E
REFRIGERANT LINES
ATC-133
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8.
Remove engine oil hose bracket mounting bolt from compressor, using power tools.
9.
Remove mounting bolts from compressor, using power tools.
10. Remove compressor from passenger side of the vehicle.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
●
Replace the O-ring of the low-pressure flexible hose, high-pressure pipe and high-pressure flexi-
ble hose with a new one, then apply compressor oil to it when installing it.
●
When recharging refrigerant, check for leaks.
Removal and Installation of Compressor Clutch
AJS00108
REMOVAL
Overhaul
1.
When removing center bolt, hold clutch disc with wrench.
2.
Remove clutch disc.
3.
Remove the snap ring using external snap ring pliers.
RJIA2797E
Bolts mounting the idler pulley bracket
Tightening torque
: 28 N·m (2.9 kg-m, 21 ft-lb)
RJIA1879E
RJIA1880E
ATC-134
REFRIGERANT LINES
Revision: 2004 November
2004 Murano
4.
Position the center pulley puller on the end of the drive shaft,
and remove the pulley assembly using any commercially avail-
able pulley puller.
To prevent the pulley groove from being deformed, the puller
claws should be positioned into the edge of the pulley assembly.
5.
Remove field coil mounting screws.
6.
Remove compressor connector from connector bracket.
Inspection
Clutch disc
If the contact surface shows signs of damage due to excessive heat,
replace clutch disc and pulley.
Pulley
Check the appearance of the pulley assembly. If the contact surface
of pulley shows signs of excessive grooving, replace clutch disc and
pulley. The contact surfaces of the pulley assembly should be
cleaned with a suitable solvent before reinstallation.
Coil
Check coil for loose connection or cracked insulation.
INSTALLATION
1.
Install the field coil.
Be sure to align the coil
′
s pin with the hole in the compressor
′
s
front head.
2.
Install the compressor connector.
RJIA1881E
RJIA1882E
RJIA1883E
RHA142E
REFRIGERANT LINES
ATC-135
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Revision: 2004 November
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3.
Install the pulley assembly using the installer and a hand press,
and then install the snap ring using snap ring pliers.
4.
Using the holder to prevent clutch disc rotation, tighten the bolt
to 14 N·m (1.4 kg·m, 10 ft-lb) torque.
After tightening the bolt, make sure the pulley rotates smoothly.
5.
Check clearance around the entire periphery of clutch disc.
If the specified clearance is not obtained, replace adjusting
spacer and readjust.
Break-in Operation
When replacing compressor clutch assembly, always carry out the break-in operation. This is done by engag-
ing and disengaging the clutch about thirty times. Break-in operation raises the level of transmitted torque.
RJIA1884E
RJIA1885E
Disc to pulley
clearance
: 0.3 - 0.60 mm (0.012 - 0.024 in)
RJIA1886E
ATC-136
REFRIGERANT LINES
Revision: 2004 November
2004 Murano
Removal and Installation of Low-Pressure Flexible Hose
AJS00109
REMOVAL
1.
Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2.
Remove cowl top cover. Refer to
3.
Remove the air duct (inlet). Refer to
EM-14, "AIR CLEANER AND AIR DUCT"
.
4.
Remove mounting bolt for low-pressure flexible hose. (Com-
pressor side)
5.
Remove mounting bolt from low-pressure flexible hose.
6.
Remove low-pressure flexible hose.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
●
Replace O-rings for A/C piping with new one, and then apply compressor oil to it when installing it.
●
When recharging refrigerant, check for leaks.
RJIA1850E
RJIA1851E
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