Automatic Air Conditioner: Removal & Installation Nissan 350Z I

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 111

Scheme 112

1. Before connecting ACR4 to vehicle, check ACR4 gauges. No refrigerant pressure should be displayed. If NG, recover refrigerant from equipment lines.
2. Connect ACR4 to vehicle. Confirm refrigerant purity in supply tank using ACR4 and refrigerant identifier. If NG, refer to " «CONTAMINATED REFRIGERANT»(ref-184466-S35702902702005082600000) ".
3. Confirm refrigerant purity in vehicle A/C system using ACR4 and refrigerant identifier. If NG, refer to " «CONTAMINATED REFRIGERANT»(ref-184466-S35702902702005082600000) ".
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 an additional 5 m l [Liter] (0.2 US fl oz, 0.2 lmp fl oz) of lubricant at this time. Do not add this 5 m l (0.2 US fl oz, 0.2 lmp fl oz) of lubricant if only replacing the compressor.

INSTALLATION

Installation is basically the reverse order of removal.

Scheme 113

1. Remove the console finisher (A/T) or console boot (M/T). Refer to «CONSOLE FINISHER (A/T)»(ref-184465-S32225360012005082600000) or «CONSOLE BOOT (M/T)»(ref-184465-S27367272002005082600000) ".
2. Remove the fixing screws, then remove the unified meter and A/C amp. (auto amp.)

Installation is basically the reverse order of removal.

REMOVAL

1. Remove the engine under cover, using power tools.
2. Disconnect ambient sensor connector.
3. Remove ambient sensor.

Installation is basically the reverse order of removal.

Scheme 114

Scheme 115

1. Remove instrument driver panel lower. Refer to «INSTRUMENT DRIVER PANEL LOWER»(ref-184465-S32550755642005082600000) .
2. Remove in-vehicle sensor.

Installation is basically the reverse order of removal.

Scheme 116

1. Pull out sunload sensor from instrument panel.
2. Disconnect sunload sensor connector, then remove sunload sensor.

Installation is basically the reverse order of removal.

Scheme 117

Scheme 118

Scheme 119

Scheme 120

1. Use a refrigerant collecting equipment (for HFC-134a) to discharge refrigerant.
2. Remove clip from low-pressure flexible hose and high-pressure pipe.
3. Disconnect evaporator-side one-touch joints. Set a disconnector (low-pressure side: 92530-89916, high-pressure side: 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: Seal connection opening of piping with a cap or vinyl tape to avoid exposure to atmosphere.
4. Remove instrument passenger panel lower, then remove the blower unit. Refer to " «BLOWER UNIT»(ref-184466-S28452842032005082600000) ".
5. Remove mode door motor and air mix door motor.
6. Remove evaporator cover from heater & cooling unit.
7. Remove the fixing bolt, then remove the low-pressure pipe and high-pressure pipe 2.
8. Slide the evaporator to passenger side, then remove the intake sensor.

Installation is basically the reverse order of removal.

Scheme 121

1. Remove instrument passenger panel lower. Refer to «PASSENGER INSTRUMENT PANEL LOWER»(ref-184465-S15587797542005082600000) .
2. Remove ECM with bracket attached.
3. Remove fixing bolts and screws, then remove blower unit. CAUTION: Move blower unit rightward, and remove locating pin (1) and joint. Then remove blower unit downward.
4. Disconnect intake door motor connector and blower fan motor connector.
5. Remove blower unit.

Installation is basically the reverse order of removal.

Scheme 122

Scheme 123

1. Disconnect blower motor connector.
2. Remove screws from blower motor, then remove it.

Installation is basically the reverse order of removal.

Scheme 124

Scheme 125

1. Remove blower unit. Refer to " «BLOWER UNIT»(ref-184466-S28452842032005082600000) ".
2. Remove intake door motor from the blower unit.

Installation is basically the reverse order of removal.

Scheme 126

Scheme 127

Scheme 128

Scheme 129

Scheme 130

1. Use a refrigerant collecting equipment (for HFC-134a) to discharge refrigerant.
2. Drain coolant from cooling system. Refer to «COOLING SYSTEM SPECIFICATIONS.»(ref-166043-S21588405482004091000000) .
3. Remove cowl top cover.
4. Disconnect low-pressure flexible hose and high-pressure pipe 1 from evaporator. Set a disconnector (low-pressure side: 92530-89916, high-pressure side: 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.
5. Remove air hose and electronic control throttle assembly.
6. Disconnect two heater hoses from heater core.
7. Remove instrument panel assembly. Refer to «INSTRUMENT PANEL ASSEMBLY»(ref-184465) ".
8. Remove blower unit. Refer to " «BLOWER UNIT»(ref-184466-S28452842032005082600000) ".
9. Remove clips of vehicle harness from steering member.
10. Remove instrument stays (left and right).
11. Remove defroster nozzle and ventilator ducts.
12. Remove mounting screws from heater & cooling unit.
13. Remove the steering member, and then remove heater & cooling unit.

Installation is basically the reverse order of removal.

Note. When filling radiator with coolant, refer to SPECIFICATIONS . Recharge the refrigerant.

Heater & cooling unit mounting bolt

Tightening torque: 5.98-7.65 N.m (0.61 - 0.78 kg-m, 53 - 67 in-lb)

Steering member mounting nut and bolt

Tightening torque: 11-13 Nm (1.1 -1.4 kg-m, 8.2 - 9.5 ft-lb)

Scheme 131

Scheme 132

1. Remove blower unit. Refer to " «BLOWER UNIT»(ref-184466-S28452842032005082600000) ".
2. Remove mounting screws from mode door motor.
3. Disconnect mode door connector.
4. Remove mode door motor.

Installation is basically the reverse order of removal.

Scheme 133

1. Set the temperature control dial at 18°C (60°F).
2. Open the driver and front passenger window, and then disconnect the battery negative cable. CAUTION: After the battery cables are disconnected, do not open/close the driver and/or front passenger door with the window in the full up position. The automatic window adjusting function will not work and the side roof panel may be damaged.
3. Remove blower unit. Refer to " «BLOWER UNIT»(ref-184466-S28452842032005082600000) ".
4. Disconnect air mix door motor connector.
5. Remove air mix door motor.

Installation is basically the reverse order of removal.

Scheme 134

Scheme 135

1. Remove instrument driver and passenger panel upper.
2. Remove center ventilator grille.

Scheme 136

Scheme 137

1. Remove door finisher.
2. Remove side ventilator duct 2.
3. Remove side ventilator grille.

Scheme 138

1. Remove instrument side finisher.

Scheme 139

Scheme 140

Scheme 141

1. Remove instrument panel. Refer to «INSTRUMENT PANEL»(ref-184465-S19800185812005082600000) ".
2. Remove side defroster duct 1.
3. Remove steering member, and then remove defroster nozzle.
4. Remove side ventilator duct 1 and center ventilator duct from instrument panel.
5. Remove side defroster duct 2.

Scheme 142

1. Remove heater & cooling unit. Refer to " «HEATER & COOLING UNIT ASSEMBLY»(ref-184466-S40251760762005082600000) ".
2. Remove evaporator cover, and then remove the foot duct (right).
3. Remove aspirator and heater pipe cover.
4. Remove foot duct (left).

Installation is basically the reverse order of removal.

1. Installation is basically the reverse order of removal. CAUTION: Replace the O-ring of the low-pressure flexible hose and high-pressure flexible hose with a new one, then apply compressor oil to it when installing it. When recharging refrigerant, check for leaks. Bolts mounting the compressor (front side) Tightening torque: 56.9 - 65.7 N.m (5.8 - 6.7 kg.m, 42 - 48 ft-lb) Bolts mounting the compressor (rear side) Tightening torque: 28.4 - 33.3 N.m (2.9 - 3.3 kg.m, 21 - 24 ft-lb) Nut mounting the high-pressure flexible hose Tightening torque: 7.8 - 19.6 N.m (0.8 - 1.9 kg.m, 69 - 173 in-lb) Nut mounting the low-pressure flexible hose Tightening torque: 7.8 - 19.6 N.m (0.8 - 1.9 kg.m, 69 -173 in-lb) Bolts mounting the idler pulley bracket Tightening torque: 24.5 - 31.4 N.m (2.5 - 3.2 kg.m, 18 - 23 ft-lb)

Scheme 143

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Scheme 145

Scheme 146

Scheme 147

Scheme 148

Scheme 149

1. When removing center bolt, hold clutch disc with wrench.
2. Remove the clutch disc using the clutch disc puller.
3. Remove the snap ring using external snap ring pliers.
4. Position the center pulley puller on the end of the drive shaft, and remove the pulley assembly using any commercially available 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 the field coil harness clip using a pair of pliers.
6. Remove the snap ring using external snap ring pliers.

Installation is basically the reverse order of removal.

Nut mounting the low-pressure flexible hose (compressor side)

Tightening torque: 7.8 - 19.6 N.m (0.8 - 1.9 kg.m, 69-173 in-lb)

Bolt mounting the low-pressure flexible hose bracket

Tightening torque: 3.82 - 4.51 N.m (0.39 - 0.46 kg.m, 34 - 39 in-lb)

Scheme 150

Scheme 151

Scheme 152

1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove the air cleaner assembly, air hose and air duct. Refer to «AIR CLEANER AND AIR DUCT»(ref-170482-S13775754652005011000000) .
3. Remove the mounting bolt for high-pressure flexible hose bracket.
4. Disconnect the one-touch joint between high-pressure flexible hose and condenser. Set a disconnector (92530-89912) on A/C piping. Slide a disconnector backward until it clicks. Slide A/C piping backward and disconnect it.
5. Remove the mounting nut for high-pressure flexible hose, and then remove the 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.

Nut mounting the high-pressure flexible hose (Compressor side)

Tightening torque: 7.8 - 19.6 N.m (0.8 - 1.9 kg.m, 69 - 173 in-lb)

Bolt mounting high-pressure flexible hose bracket

Tightening torque: 3.82 - 4.51 N.m (0.39 - 0.46 kg.m, 34 - 39 in - lb)

Scheme 153

1. Remove cowl top cover.
2. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
3. Remove the air cleaner assembly, air hose and air duct. Refer to «AIR CLEANER AND AIR DUCT»(ref-170482-S13775754652005011000000) .
4. Remove the low-pressure flexible hose. Refer to " «LOW-PRESSURE FLEXIBLE HOSE»(ref-184466-S24132100432005082600000) ".
5. Remove the high-pressure flexible hose bracket.
6. Remove the high-pressure flexible hose from vehicle clips.
7. Disconnect the one-touch joints of high-pressure pipe. Set a disconnector (92530-89908) on A/C piping. Slide a disconnector toward vehicle front (or backward) until it clicks. Slide A/C piping toward vehicle front (or backward) and disconnect it.
8. Remove the 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.

Installation is basically the reverse order of removal.

Scheme 154

Scheme 155

Scheme 156

Scheme 157

1. Set the temperature control dial at 18°C (60°F).
2. Open the driver and front passenger window, and then disconnect the battery negative cable. CAUTION: After the battery cables are disconnected, do not open/close the driver and/or front passenger door with the window in the full up position. The automatic window adjusting function will not work and the side roof panel may be damaged.
3. Remove cowl top cover.
4. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
5. Remove mounting bolt for low-pressure flexible hose bracket.
6. Remove high-pressure pipe 1 from vehicle clips.
7. Disconnect one-touch joints. 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.
8. Remove instrument passenger panel lower. Refer to «INSTRUMENT PANEL ASSEMBLY»(ref-184465-S39932986952005082600000) .
9. Remove blower unit. Refer to " «BLOWER UNIT»(ref-184466-S28452842032005082600000) ".
10. Remove air mix door motor and mode door motor.
11. Remove evaporator cover.
12. Remove mounting bolt, then, remove low-pressure pipe 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.

Bolt mounting the low-pressure pipe and high-pressure pipe 2

Tightening torque: 2.9 - 5.9 N.m (0.29 - 0.60 kg.m, 26 - 52 in-lb)

Bolt mounting low-pressure flexible hose bracket

Tightening torque: 3.82 - 4.51 N.m (0.39 - 0.46 kg.m, 34 - 39 in-lb)

Scheme 158

Scheme 159

1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove the condenser. Refer to " «CONDENSER»(ref-184466-S31008680862005082600000) ".
3. Clean liquid tank and its surrounding area, and remove dirt and rust from liquid tank. CAUTION: Be sure to clean carefully.
4. Remove mounting bolt for liquid tank.
5. Lift liquid tank upwards. Remove bracket from protruding part of condenser.
6. Slide liquid tank upward, then remove liquid tank.

Installation is basically the reverse order of removal.

Scheme 160

Bolt mounting the liquid tank bracket (upper side)

Tightening torque: 2.94 - 3.82 N.m (0.30 - 0.38 kg.m, 26 - 33 in-lb)

Bolt mounting the liquid tank bracket (lower side)

Tightening torque: 5.0 - 6.47 N.m (0.51 - 0.65 kg.m, 45 - 57 in-lb)

Scheme 161

Scheme 162

Scheme 163

1. Remove cover for condenser mounting bolt.
2. Remove engine cover, air cleaner assembly and air hose. Refer to «AIR CLEANER AND AIR DUCT»(ref-170482-S13775754652005011000000) .
3. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
4. Remove engine under cover, using power tools.
5. Drain engine coolant. Refer to «COOLING SYSTEM SPECIFICATIONS»(ref-166043-S21588405482004091000000) .
6. Remove radiator fan shroud after removing radiator upper hose.
7. Disconnect one-touch joints. Set a disconnector (condenser outlet: 92530-89908, condenser inlet: 92530-89912) on A/C piping. Slide a disconnector backward until it clicks. Slide A/C piping backward 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.
8. Remove mounting bolt for condenser.
9. Remove radiator upper mount, move radiator and condenser to the engine side.
10. Disconnect refrigerant pressure sensor connector.
11. Lift condenser up slightly and tilt it toward front of vehicle. (This is because condenser lower bracket is on bottom of radiator tank.)
12. Pull condenser forward at an angle. Remove condenser from radiator. CAUTION: Be careful not to damage the core surface of the condenser and the radiator.

Installation is basically the reverse order of removal.

Scheme 164

Bolt mounting the condenser

Tightening torque: 5.7 - 6.5 N.m (0.59 - 0.66 kg.m, 51 - 57 in-lb)

Scheme 165

1. Remove the liquid tank. Refer to " «LIQUID TANK»(ref-184466-S06119491722005082600000) ".
2. Using a vise, secure liquid tank, and remove refrigerant pressure sensor. CAUTION: When working, be careful not to damage the condenser fins.

Installation is basically the reverse order of removal.

Refrigerant pressure sensor

Tightening torque: 9.9 - 11.7 N.m (1.0 - 1.2 kg.m, 87 - 104 in-lb)

1. Set the temperature control dial at 18°C (60°F).
2. Open the driver and front passenger window, and then disconnect the battery negative cable. CAUTION: After the battery cables are disconnected, do not open/close the driver and/or front passenger door with the window in the full up position. The automatic window adjusting function will not work and the side roof panel may be damaged.
3. Using a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
4. Remove the low-pressure pipe and high-pressure pipe 2. Refer to " «LOW-PRESSURE PIPE AND HIGH-PRESSURE PIPE 2»(ref-184466-S33871958082005082600000) ". CAUTION: Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.
5. Slide the evaporator, then remove it from the heater & cooling unit.
6. Remove the intake sensor from the evaporator, then remove the evaporator.

Installation is basically the reverse order of removal.

Scheme 166

Bolt mounting the low-pressure pipe and high-pressure pipe 2

Tightening torque: 2.9 - 5.9 N.m (0.29 - 0.6 kg.m, 26 - 52 in-lb)

Bolt mounting low-pressure flexible hose bracket

Tightening torque: 3.82 - 4.51 N.m (0.39 - 0.46 kg.m, 34 - 39 in-lb)

Scheme 167

1. Set the temperature control dial at 18°C (60°F).
2. Open the driver and front passenger window, and then disconnect the battery negative cable. CAUTION: After the battery cables are disconnected, do not open/close the driver and/or front passenger door with the window in the full up position. The automatic window adjusting function will not work and the side roof panel may be damaged.
3. Remove cowl top cover.
4. Using a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
5. Remove low-pressure pipe and high-pressure pipe 2. Refer to " «LOW-PRESSURE PIPE AND HIGH-PRESSURE PIPE 2»(ref-184466-S33871958082005082600000) ".
6. Remove expansion valve.

Installation is basically the reverse order of removal.

Bolts mounting expansion valve

Tightening torque: 2.9 - 4.9 N.m (0.29 - 0.50 kg.m, 26 - 43 in-lb)

Blot mounting low-pressure pipe 2 and high-pressure pipe 2

Tightening torque: 2.9 - 5.9 N.m (0.29 - 0.60 kg.m, 26 - 52 in-lb)