Nissan Qashqai J11. Manual — part 1075
HA-126
< REMOVAL AND INSTALLATION >
[TYPE 3]
COOLER PIPE AND HOSE
MR16DDT engine models
HIGH-PRESSURE FLEXIBLE HOSE
HIGH-PRESSURE FLEXIBLE HOSE : Removal and Installation
INFOID:0000000010501662
CAUTION:
Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to
114, "Perform Lubricant Return Operation"
REMOVAL
1.
Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to
.
2.
Remove mounting bolt, and then disconnect high-pressure flexible hose from the high-pressure pipe 2.
JMIIA4021GB
1.
A/C unit assembly
2.
O-ring
3.
High-pressure pipe 3
4.
High-pressure pipe 1
5.
Refrigerant pressure sensor
6.
Condenser & liquid tank assembly
7.
High-pressure pipe 2
8.
High-pressure flexible hose
9.
Compressor
10. Low-pressure flexible hose
11.
Low-pressure pipe
: Always replace after every disassembly.
: N·m (kg-m, in-lb)
: N·m (kg-m, ft-lb)
COOLER PIPE AND HOSE
HA-127
< REMOVAL AND INSTALLATION >
[TYPE 3]
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CAUTION:
Cap or wrap the joint of the A/C piping with suitable material such as vinyl tape to avoid the entry
of air.
3.
Remove mounting bolt, and then disconnect high-pressure flexible hose from the compressor.
CAUTION:
Cap or wrap the joint of the A/C piping and compressor with suitable material such as vinyl tape to
avoid the entry of air.
4.
Remove high-pressure flexible hose from the vehicle.
INSTALLATION
Note the following items, and then install in the reverse order of removal.
CAUTION:
• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant. Refer to
.
LOW-PRESSURE FLEXIBLE HOSE
LOW-PRESSURE FLEXIBLE HOSE : Removal and Installation
INFOID:0000000010501663
CAUTION:
Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to
114, "Perform Lubricant Return Operation"
REMOVAL
1.
Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to
2.
Remove cowl top extension. Refer to
EXT-30, "Removal and Installation"
. (MR20DD engine models)
3.
Disengage fixing clip, and then remove insulator upper side. (MR20DD engine models)
4.
Remove mounting bolt, and then disconnect low-pressure flexible hose from low-pressure pipe.
(HRA2DDT engine models and MR16DDT engine models)
CAUTION:
Cap or wrap the joint of the A/C piping with suitable material such as vinyl tape to avoid the entry
of air.
5.
Remove mounting bolt, and then disconnect low-pressure flexible hose from expansion valve. (MR20DD
engine models)
CAUTION:
Cap or wrap the joint of the A/C piping and expansion valve with suitable material such as vinyl
tape to avoid the entry of air.
6.
Remove mounting bolt, and then disconnect low-pressure flexible hose from the compressor.
CAUTION:
Cap or wrap the joint of the A/C piping and compressor with suitable material such as vinyl tape to
avoid the entry of air.
7.
Remove low-pressure flexible hose mounting bolt. (MR20DD engine models)
8.
Remove low-pressure flexible hose from the vehicle.
INSTALLATION
Note the following items, and then install in the reverse order of removal.
CAUTION:
• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant. Refer to
.
LOW-PRESSURE PIPE
LOW-PRESSURE PIPE : Removal and Installation
INFOID:0000000010501664
CAUTION:
Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to
114, "Perform Lubricant Return Operation"
REMOVAL
HA-128
< REMOVAL AND INSTALLATION >
[TYPE 3]
COOLER PIPE AND HOSE
1.
Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to
.
2.
Remove fixing clip, and then remove insulator upper side.
3.
Remove cowl top extension. Refer to
EXT-30, "Removal and Installation"
4.
Remove mounting bolt, and then disconnect low-pressure pipe from expansion valve.
CAUTION:
Cap or wrap the joint of the A/C piping and expansion valve with suitable material such as vinyl
tape to avoid the entry of air.
5.
Remove mounting bolts, and then disconnect low-pressure pipe from low-pressure flexible hose.
CAUTION:
Cap or wrap the joint of the A/C piping with suitable material such as vinyl tape to avoid the entry
of air.
6.
Remove mounting nut, and then remove low-pressure pipe.
INSTALLATION
Note the following items, and then install in the reverse order of removal.
CAUTION:
• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant. Refer to
HIGH-PRESSURE PIPE 1
HIGH-PRESSURE PIPE 1 : Removal and Installation
INFOID:0000000010501665
CAUTION:
Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to
114, "Perform Lubricant Return Operation"
REMOVAL
1.
Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to
.
2.
Remove front bumper fascia assembly. Refer to
EXT-20, "Removal and Installation"
3.
Remove mounting bolt, and then disconnect high-pressure pipe 1 from high-pressure pipe 3.
CAUTION:
Cap or wrap the joint of the A/C piping with suitable material such as vinyl tape to avoid the entry
of air.
4.
Remove mounting bolt, and then disconnect high-pressure pipe 1 from the condenser & liquid tank
assembly.
CAUTION:
Cap or wrap the joint of the A/C piping and condenser with suitable material such as vinyl tape to
avoid the entry of air.
5.
Disconnect refrigerant pressure sensor harness connector.
6.
Remove mounting bolt, and then remove high-pressure pipe 1 from the vehicle.
INSTALLATION
Note the following items, and then install in the reverse order of removal.
CAUTION:
• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant. Refer to
HIGH-PRESSURE PIPE 2
HIGH-PRESSURE PIPE 2 : Removal and Installation
INFOID:0000000010501666
CAUTION:
Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to
114, "Perform Lubricant Return Operation"
REMOVAL
COOLER PIPE AND HOSE
HA-129
< REMOVAL AND INSTALLATION >
[TYPE 3]
C
D
E
F
G
H
J
K
L
M
A
B
HA
N
O
P
1.
Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to
2.
Remove front bumper fascia assembly. Refer to
EXT-20, "Removal and Installation"
.
3.
Remove mounting bolt, and then disconnect high-pressure pipe 2 from high-pressure flexible hose.
CAUTION:
Cap or wrap the joint of the A/C piping and expansion valve with suitable material such as vinyl
tape to avoid the entry of air.
4.
Remove mounting bolt, and then disconnect high-pressure pipe 2 from condenser & liquid tank assembly.
CAUTION:
Cap or wrap the joint of the A/C piping and condenser with suitable material such as vinyl tape to
avoid the entry of air.
5.
Remove high-pressure pipe 2 from the vehicle.
INSTALLATION
Note the following items, and then install in the reverse order of removal.
CAUTION:
• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant. Refer to
.
HIGH-PRESSURE PIPE 3
HIGH-PRESSURE PIPE 3 : Removal and Installation
INFOID:0000000010709171
CAUTION:
Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to
114, "Perform Lubricant Return Operation"
REMOVAL
1.
Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to
2.
Disconnect fixing clip, and then remove insulator upper side.
3.
Remove mounting bolt, and then disconnect high-pressure pipe 3 and low-pressure pipe from expansion
valve. (HRA2DDT engine models and MR16DDT engine models)
CAUTION:
Cap or wrap the joint of the A/C piping and expansion valve with suitable material such as vinyl
tape to avoid the entry of air.
4.
Remove mounting bolt, and then disconnect high-pressure pipe 3 and low-pressure flexible hose from
expansion valve. (MR20DD engine models)
CAUTION:
Cap or wrap the joint of the A/C piping and expansion valve with suitable material such as vinyl
tape to avoid the entry of air.
5.
Remove mounting bolt, and then disconnect high-pressure pipe 3 from high-pressure pipe 1.
CAUTION:
Cap or wrap the joint of the A/C piping with suitable material such as vinyl tape to avoid the entry
of air.
6.
Remove high-pressure pipe 3 from the vehicle.
INSTALLATION
Note the following items, and then install in the reverse order of removal.
CAUTION:
• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant. Refer to
.
REFRIGERANT PRESSURE SENSOR
REFRIGERANT PRESSURE SENSOR : Removal and Installation
INFOID:0000000010501667
CAUTION:
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