Nissan Murano Z50 (2004 year). Manual

HEATER & COOLING UNIT ASSEMBLY

ATC-121

ATC

Revision: 2004 November

2004 Murano

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

Remove BCM. Refer to

BCS-14, "Removal and Installation of BCM"

Remove mounting screws from mode door motor.

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

ATC

Revision: 2004 November

2004 Murano

AIR MIX DOOR MOTOR

PFP:27732

Removal and Installation

AJS00103

REMOVAL
Driver Side

Set the temperature at 18

C (60

F), and then disconnect the battery negative cable.

Remove instrument driver lower panel. Refer to

IP-11, "Removal and Installation"

Remove mounting screws, and then remove the air mix door
motor.

Disconnect air mix door motor connector.

Passenger Side

Set the temperature at 18

C (60

F), and then disconnect the battery negative cable.

Remove blower unit. Refer to

ATC-113, "BLOWER UNIT"

Remove mounting screws, and then remove the air mix door
motor.

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

Remove heater & cooling unit. Refer to

ATC-118, "HEATER & COOLING UNIT ASSEMBLY"

Remove foot duct (right). Refer to

ATC-128, "Removal of Foot Ducts"

Remove mounting screw, and then remove heater core cover.

Remove mounting screw, and then remove heater pipe support and heater pipe grommet.

Slide heater core to passenger side.

INSTALLATION

Installation is basically the reverse order of removal.

RJIA1865E

DUCTS AND GRILLES

ATC-125

ATC

Revision: 2004 November

2004 Murano

DUCTS AND GRILLES

PFP:27860

Removal and Installation

AJS00104

REMOVAL

Removal of Center Ventilator Grille

Remove center ventilator. Refer to

IP-11, "Removal and Installation"

Remove mounting clips, and then remove center ventilator grille.

Removal of Side Ventilator Grille

Remove side ventilator assembly. Refer to

IP-11, "Removal and Installation"

Remove mounting screw and clips, and then remove side venti-
lator grille.

Defroster nozzle

Side defroster duct (left)

Ventilator duct

Side defroster grille (left)

Side ventilator grille (left)

Center ventilator grille (left)

Center ventilator grille (right)

Side ventilator grille (right)

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

Remove center pillar lower garnish. Refer to

EI-32, "CENTER PILLAR LOWER GARNISH"

Remove mounting clips, and then remove rear ventilator grille.

Removal of Defroster Nozzle, Ducts and Ventilator Ducts

Remove instrument panel assembly. Refer to

IP-11, "Removal and Installation"

Remove side defroster ducts, using power tools.

Remove defroster nozzle, using power tools.

Remove ventilator duct., using power tools.

Removal of Side Defroster Grille

Remove instrument side finisher. Refer to

IP-11, "Removal and Installation"

Remove mounting clip, and then remove side defroster grilles.

RJIA1836E

RJIA1837E

RJIA1838E

DUCTS AND GRILLES

ATC-127

ATC

Revision: 2004 November

2004 Murano

Removal of Rear Ventilator Ducts

Remove center console. Refer to

IP-18, "Removal and Installation"

Slide rear ventilator duct 2 toward vehicle rear, and then remove it.

Remove rear ventilator duct 1.

Remove floor carpet. Refer to

EI-34, "Removal and Installation"

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

Remove instrument driver lower panel. Refer to

IP-11, "Removal and Installation"

Remove mounting screws, and then remove foot duct (driver
side).

Remove blower unit. Refer to

ATC-113, "BLOWER UNIT"

Remove mounting screws, and then remove foot duct (passen-
ger side).

Removal of Floor Ducts

Remove front seats and center console. Refer to

SE-102, "FRONT SEAT"

and

IP-17, "CENTER CON-

SOLE ASSEMBLY"

Slide front floor duct downward, and then remove it.

Peel back the floor carpet to a point where the rear floor duct is
visible.

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

ATC

Revision: 2004 November

2004 Murano

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

REFRIGERANT LINES

ATC-131

ATC

Revision: 2004 November

2004 Murano

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

Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.

Remove the air duct (inlet). Refer to

EM-14, "AIR CLEANER AND AIR DUCT"

Remove the engine undercover, using power tools.

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.

Disconnect compressor (magnet clutch) connector.

Remove the A/C compressor belt. Refer to

EM-11, "DRIVE

BELTS"

Remove the idler pulley bracket.

RJIA1846E

RJIA1847E

RJIA1848E

REFRIGERANT LINES

ATC-133

ATC

Revision: 2004 November

2004 Murano

Remove engine oil hose bracket mounting bolt from compressor, using power tools.

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

When removing center bolt, hold clutch disc with wrench.

Remove clutch disc.

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

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.

Remove field coil mounting screws.

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

Install the field coil.
Be sure to align the coil

′

s pin with the hole in the compressor

′

front head.

Install the compressor connector.

RJIA1881E

RJIA1882E

RJIA1883E

RHA142E

REFRIGERANT LINES

ATC-135

ATC

Revision: 2004 November

2004 Murano

Install the pulley assembly using the installer and a hand press,
and then install the snap ring using snap ring pliers.

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.

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

Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.

Remove cowl top cover. Refer to

EI-21, "COWL TOP"

Remove the air duct (inlet). Refer to

EM-14, "AIR CLEANER AND AIR DUCT"

Remove mounting bolt for low-pressure flexible hose. (Com-
pressor side)

Remove mounting bolt from low-pressure flexible hose.

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

Nissan Murano Z50 (2004 year). Manual - part 10