Automatic Air Conditioner: Removal & Installation Nissan Murano Z50

LUBRICANT ADJUSTING PROCEDURE FOR COMPONENTS REPLACEMENT EXCEPT COMPRESSOR

After replacing any of the following major components, add the correct amount of lubricant to the system. Amount of lubricant to be added

Scheme 99

Scheme 100

1. Before connecting recovery/recycling recharging equipment to vehicle, check recovery/recycling recharging equipment gauges. No refrigerant pressure should be displayed. If NG, recover refrigerant from equipment lines.
2. Connect recovery/recycling recharging equipment to vehicle. Confirm refrigerant purity in supply tank using recovery/recycling recharging equipment and refrigerant identifier. If NG, Refer to «CONTAMINATED REFRIGERANT»(ref-234022-S05629506832006052800000) .
3. Confirm refrigerant purity in vehicle A/C system using recovery/recycling recharging equipment and refrigerant identifier. If NG, Refer to «CONTAMINATED REFRIGERANT»(ref-234022-S05629506832006052800000) .
4. Discharge refrigerant into the refrigerant recovery/recycling equipment. Measure lubricant discharged into the recovery/recycling equipment.
5. Drain the lubricant from the old (removed) compressor into a graduated container and recover the amount of lubricant drained.
6. Drain the lubricant from the new compressor into a separate, clean container.
7. Measure an amount of new lubricant installed equal to amount drained from old compressor. Add this lubricant to new compressor through the suction port opening.
8. Measure an amount of new lubricant equal to the amount recovered during discharging. Add this lubricant to new compressor through the suction port opening.
9. If the liquid tank also needs to be replaced, add another 5 ml (0.2 US fl oz., 0.2 lmp fl oz.) of lubricant at this time. Do not add this 5 ml (0.2 US fl oz., 0.2 lmp fl oz.) of lubricant only when replaces the compressor.

REMOVAL

Refer to REMOVAL AND INSTALLATION FOR A/C AND AV SWITCH .

INSTALLATION

Installation is basically the reverse order of removal.

Scheme 101

1. Remove audio unit. Refer to «REMOVAL AND INSTALLATION OF AUDIO UNIT»(ref-234029-S13733428152006052700000) .
2. Remove mounting screws, and then remove unified meter and A/C amp.

Installation is basically the reverse order of removal.

Scheme 102

1. Remove ambient sensor from bracket.
2. Disconnect ambient sensor connector, and then remove it.

Installation is basically the reverse order of removal.

Scheme 103

1. Remove instrument driver lower panel. Refer to «REMOVAL AND INSTALLATION»(ref-234019-S40325796262006052700000) .
2. Remove mounting screw, and then remove in-vehicle sensor.

Installation is basically the reverse order of removal.

Scheme 104

1. Remove instrument mask (right side). Refer to «REMOVAL AND INSTALLATION»(ref-234019-S40325796262006052700000) .
2. Disconnect sunload sensor connector, and then remove sunload sensor.

Installation is basically the reverse order of removal.

Scheme 105

1. Remove low-pressure pipe 2 and high-pressure pipe 2. Refer to «REMOVAL AND INSTALLATION OF LOW-PRESSURE PIPE 2 AND HIGH-PRESSURE PIPE 2»(ref-234022-S07689365232006052800000) . CAUTION: Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry air.
2. Slide evaporator to passenger side, and then remove intake sensor.

Installation is basically the reverse order of removal.

Scheme 106

Scheme 107

1. Remove instrument passenger lower panel. Refer to «REMOVAL AND INSTALLATION»(ref-234019-S40325796262006052700000) .
2. Remove ECM with bracket attached.
3. Disconnect intake door motor connector and blower fan motor connector.
4. Remove mounting nuts, bolts and screw, and then remove blower unit. CAUTION: Move blower unit rightward, and remove locating pin (1) and joint. Then remove blower unit downward.
5. Remove harness clips from blower unit.
6. Remove blower unit.

Installation is basically the reverse order of removal.

Scheme 108

Scheme 109

Scheme 110

1. Remove instrument passenger lower panel. Refer to «REMOVAL AND INSTALLATION»(ref-234019-S40325796262006052700000) .
2. Disconnect blower motor connector.
3. Remove mounting screws from blower motor, and then remove it.

Installation is basically the reverse order of removal.

Scheme 111

1. Remove blower unit. Refer to «BLOWER UNIT»(ref-234022-S30189974582006052800000) .
2. Remove mounting screws, and then remove intake door motor from blower unit.

Installation is basically the reverse order of removal.

REPLACEMENT TIMING

Replace in-cabin microfilter.

Refer to CHASSIS AND BODY MAINTENANCE in SCHEDULE 1 and CHASSIS AND BODY MAINTENANCE in SCHEDULE 2.

Caution label is fixed inside glove box.

REPLACEMENT PROCEDURES

1. Remove instrument passenger lower panel. Refer to «REMOVAL AND INSTALLATION»(ref-234019-S40325796262006052700000)
2. Remove filter cover, and then remove in-cabin microfilter.
3. Take out in-cabin microfilter from blower unit.
4. Replace with new one and reinstall on blower unit.
5. Reinstall glove box.

Scheme 112

Scheme 113

Scheme 114

Scheme 115

Scheme 116

1. Use a refrigerant collecting equipment (for HFC-134a) to discharge refrigerant.
2. Drain coolant from cooling system. Refer to «CHANGING ENGINE COOLANT»(ref-233995-S01322841342006052700000).
3. Remove cowl top cover. Refer to «COWL TOP»(ref-234018-S27219738992006052700000).
4. Disconnect evaporator-side one-touch joints. (Scheme 113) Set a disconnector (High-pressure side: 92530-89908, Low-pressure side: 92530-89916) on A/C piping. Slide a disconnector toward vehicle front until it clicks. Slide A/C piping toward vehicle front and disconnect it. CAUTION: Seal connection opening of piping with a cap or vinyl tape to avoid exposure to atmosphere.
5. Disconnect two heater hoses from heater core.
6. Remove instrument panel assembly. Refer to «REMOVAL AND INSTALLATION»(ref-234019-S40325796262006052700000).
7. Remove blower unit. Refer to «BLOWER UNIT»(ref-234022-S30189974582006052800000).
8. Remove clips of vehicle harness from steering member.
9. Remove mounting nuts, and then remove instrument stays (driver side and passenger side).
10. Remove mounting bolts from heater & cooling unit.
11. Remove rear ventilator duct and front floor duct. Refer to «REMOVAL OF REAR VENTILATOR DUCTS»(ref-234022-S41093080482006052800000) and «REMOVAL OF FOOT DUCTS»(ref-234022-S16542704602006052800000).
12. Remove the steering member, and then remove heater and cooling unit.

Scheme 117

Installation is basically the reverse order of removal.

Note. When filling radiator with coolant, Refer to CHANGING ENGINE COOLANT . Recharge the refrigerant. Heater & cooling unit mounting bolt Tightening torque: 6.8 Nm (0.69 kg-m, 60 in-lb) Steering member mounting nut and bolt Tightening torque: 12 Nm (1.2 kg-m, 9 ft-lb)

Scheme 118

Scheme 119

1. Remove BCM. Refer to «REMOVAL AND INSTALLATION OF BCM»(ref-234027-S03884723312006052700000) .
2. Remove mounting screws from mode door motor.
3. Disconnect mode door connector, and then remove mode door motor.

Installation is basically the reverse order of removal.

Scheme 120

1. Set the temperature (driver side) at 18°C (60°F), and then disconnect the battery cable from negative terminal.
2. Remove instrument driver lower panel. Refer to «REMOVAL AND INSTALLATION»(ref-234019-S40325796262006052700000) .
3. Remove mounting screws, and then remove the air mix door motor.
4. Disconnect air mix door motor connector.

Scheme 121

1. Set the temperature (passenger side) at 18°C (60°F), and then disconnect the battery cable from negative terminal.
2. Remove blower unit. Refer to «BLOWER UNIT»(ref-234022-S30189974582006052800000) .
3. Remove mounting screws, and then remove the air mix door motor.
4. Disconnect air mix door motor connector.

Installation is basically the reverse order of removal.

Scheme 122

1. Remove heater & cooling unit. Refer to «HEATER & COOLING UNIT ASSEMBLY»(ref-234022-S30715288692006052800000) .
2. Remove foot duct (right). Refer to «REMOVAL OF FOOT DUCTS»(ref-234022-S16542704602006052800000) .
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 is basically the reverse order of removal.

Scheme 123

Scheme 124

1. Remove center ventilator. Refer to «REMOVAL AND INSTALLATION»(ref-234019-S40325796262006052700000) .
2. Remove mounting clips, and then remove center ventilator grille.

Scheme 125

1. Remove side ventilator assembly. Refer to «REMOVAL AND INSTALLATION»(ref-234019-S40325796262006052700000) .
2. Remove mounting screw and clips, and then remove side ventilator grille.

Scheme 126

1. Remove center pillar lower garnish. Refer to «CENTER PILLAR LOWER GARNISH»(ref-234018-S00040991572006052800000) .
2. Remove mounting clips, and then remove rear ventilator grille.

Scheme 127

1. Remove instrument panel assembly. Refer to «REMOVAL AND INSTALLATION»(ref-234019-S40325796262006052700000) .
2. Remove side defroster ducts, using power tools.
3. Remove defroster nozzle, using power tools.
4. Remove ventilator duct, using power tools.

Scheme 128

1. Remove instrument side finisher. Refer to «REMOVAL AND INSTALLATION»(ref-234019-S40325796262006052700000) .
2. Remove mounting clip, and then remove side defroster grilles.

Scheme 129

Scheme 130

1. Remove center console. Refer to «REMOVAL AND INSTALLATION»(ref-234019-S11000488212006052700000) .
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 «REMOVAL AND INSTALLATION»(ref-234018-S00358822082006052800000) .
5. Remove rear ventilator duct 3 fixing screws, and then remove rear ventilator duct 3.

Scheme 131

Scheme 132

1. Remove instrument driver lower panel. Refer to «REMOVAL AND INSTALLATION»(ref-234019-S40325796262006052700000) .
2. Remove mounting screws, and then remove foot duct (driver side).
3. Remove blower unit. Refer to «BLOWER UNIT»(ref-234022-S30189974582006052800000) .
4. Remove mounting screws, and then remove foot duct (passenger side).

Scheme 133

Scheme 134

1. Remove front seats and center console. Refer to «FRONT SEAT»(ref-234020-S34397951752006052800000) and «CENTER CONSOLE ASSEMBLY»(ref-234019-S29076052352006052700000) .
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 is basically the reverse order of removal.

Installation is basically the reverse order of removal.

1. Bolts mounting idler pulley bracket
2. Tightening torque: 28 N.m (2.9 kg-m, 21 ft-lb)

Scheme 135

Scheme 136

Scheme 137

Scheme 138

1. When removing center bolt, hold clutch disc with wrench.
2. Remove clutch disc.
3. Remove snap ring using external snap ring pliers.
4. Position center pulley puller on the end of driveshaft, and remove pulley assembly using any commercially available pulley puller. To prevent pulley groove from being deformed, puller claws should be positioned into the edge of pulley assembly.
5. Remove field coil mounting screws.
6. Remove compressor connector from connector bracket.

Installation is basically the reverse order of removal.

Scheme 139

Scheme 140

1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove air duct (inlet). Refer to «AIR CLEANER AND AIR DUCT»(ref-233993-S13601402462006052800000) .
3. Remove mounting bolt from high-pressure flexible hose (Compressor side), and then remove high-pressure flexible hose fixing clip.
4. Remove mounting nut from high-pressure flexible hose (Condenser side), and then remove 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.

Installation is basically the reverse order of removal.

Scheme 141

Scheme 142

1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove cowl top cover. Refer to «COWL TOP»(ref-234018-S27219738992006052700000) .
3. Remove mounting bolt from low-pressure pipe 1 and low-pressure pipe 1 bracket.
4. Remove high-pressure pipe 1 from clip.
5. Disconnect one-touch joints. Set a disconnector (92530-89916) on A/C piping. Slide a disconnector toward vehicle front until it clicks. Slide A/C piping toward vehicle front and disconnect it.
6. Remove low-pressure pipe 1. CAUTION: Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.

Installation is basically the reverse order of removal.

1. Bolt mounting low-pressure pipe 1 bracket
2. Tightening torque: 4.2 N.m (0.43 kg-m, 37 in-lb)

Scheme 143

Scheme 144

Scheme 145

Scheme 146

1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove cowl top cover. Refer to «COWL TOP»(ref-234018-S27219738992006052700000) .
3. Remove air duct (inlet). Refer to «AIR CLEANER AND AIR DUCT»(ref-233993-S13601402462006052800000) .
4. Remove low-pressure pipe 1. Refer to «REMOVAL AND INSTALLATION OF LOW-PRESSURE PIPE 1 (ENGINE COMPARTMENT)»(ref-234022-S03068278522006052800000) .
5. Remove reservoir tank. Refer to «RADIATOR»(ref-233995-S41746158612006052700000) .
6. Remove IPDM E/R. Refer to «REMOVAL AND INSTALLATION OF IPDM E/R»(ref-234031-S04459342902006052700000) .
7. Remove power steering oil tank mounting nuts.
8. Remove vehicle harness connector from bracket.
9. Remove high-pressure pipe 1 from clips.
10. Remove high-pressure flexible hose from vehicle clips.
11. Disconnect cooling fan connector.
12. Remove cooling fan harness clip from fan shroud.
13. Remove ground harness terminal mounting bolt.
14. Disconnect one-touch joints of high-pressure pipe 1. Set a disconnector (92530-89908) on A/C piping. Slide a disconnector toward vehicle front until it clicks. Slide A/C piping toward vehicle front and disconnect it. CAUTION: Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.
15. Remove high-pressure pipe 1 mounting bolt, and then remove it. CAUTION: Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.

Installation is basically the reverse order of removal.

Scheme 147

Scheme 148

Scheme 149

Scheme 150

1. Set the temperature at 18°C (60°F), and then disconnect the battery cable from negative terminal.
2. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
3. Remove cowl top cover. Refer to «COWL TOP»(ref-234018-S27219738992006052700000).
4. Remove mounting bolt from low-pressure flexible pipe 1 bracket.
5. Remove high-pressure pipe 1 from vehicle clips.
6. Disconnect one-touch joints. (Scheme 149) Set a disconnector (High-pressure side: 92530-89908, Low-pressure side: 92530-89916) on A/C piping. Slide a disconnector toward vehicle front until it clicks. Slide A/C piping toward vehicle front and disconnect it. CAUTION: Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.
7. Remove blower unit. Refer to «BLOWER UNIT»(ref-234022-S30189974582006052800000).
8. Remove air mix door motor (passenger side), foot duct, heater core cover and evaporator cover.
9. Remove mounting bolt, and then remove low-pressure pipe 2 and high-pressure pipe 2. CAUTION: Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.

Installation is basically the reverse order of removal.

1. Bolt mounting low-pressure pipe 1 bracket
2. Tightening torque: 4.2 N.m (0.43 kg-m, 37 in-lb)

Scheme 151

Scheme 152

1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove condenser. Refer to «REMOVAL AND INSTALLATION OF CONDENSER»(ref-234022-S06267971912006052800000) .
3. Clean liquid tank and its surrounding area, and remove dirt and rust from tank. CAUTION: Be sure to clean carefully.
4. Remove mounting bolt from liquid tank.
5. Lift liquid tank bracket upward. Remove bracket from protruding part of condenser.
6. Slide liquid tank upward, and then remove liquid tank.

Install liquid tank, and then install liquid tank bracket on condenser.

Scheme 153

Scheme 154

Scheme 155

Scheme 156

1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove air duct (inlet). Refer to «AIR CLEANER AND AIR DUCT»(ref-233993-S13601402462006052800000) .
3. Remove engine undercover, using power tools.
4. Drain engine coolant. Refer to «CHANGING ENGINE COOLANT»(ref-233995-S01322841342006052700000) .
5. Remove cooling fan shroud after removing radiator upper hose. Refer to «RADIATOR»(ref-233995-S41746158612006052700000) .
6. Remove mounting bolt, and then disconnect high-pressure flexible hose and high-pressure pipe 1. CAUTION: Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.
7. Remove radiator upper mount, move radiator and condenser to the engine side.
8. Remove mounting bolts, and then remove condenser. CAUTION: Be careful not to damage core surface of condenser and radiator.

Installation is basically the reverse order of removal.

Scheme 157

1. Remove condenser. Refer to «REMOVAL AND INSTALLATION OF CONDENSER»(ref-234022-S06267971912006052800000) .
2. Remove refrigerant pressure sensor from condenser. CAUTION: When working, be careful not to damage the condenser fins.

Installation is basically the reverse order of removal.

1. Refrigerant pressure sensor Tightening torque: 10.8 N.m (1.1 kg-m, 8.0 ft-lb)

Scheme 158

1. Remove cowl top cover. Refer to «COWL TOP»(ref-234018-S27219738992006052700000) .
2. Remove low-pressure pipe 2 and high-pressure pipe 2. Refer to «REMOVAL AND INSTALLATION OF LOW-PRESSURE PIPE 2 AND HIGH-PRESSURE PIPE 2»(ref-234022-S07689365232006052800000) . CAUTION: Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.
3. Slide evaporator, and then remove it from heater & cooling unit.
4. Remove intake sensor from evaporator, and then remove evaporator.

Installation is basically the reverse order of removal.

Scheme 159

1. Remove evaporator. Refer to «REMOVAL AND INSTALLATION OF EVAPORATOR»(ref-234022-S16600004592006052800000) .
2. Remove mounting bolts from expansion valve, and then remove expansion valve.

Installation is basically the reverse order of removal.