Nissan Quest E52. Instruction — part 712
COOLER PIPE AND HOSE
HA-39
< REMOVAL AND INSTALLATION >
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10. Remove mounting nuts (A) and bolt (B), and then remove heat
insulator.
CAUTION:
• Work when system is cool, as the exhaust system is hot
just after stopping the engine.
• Be careful not to cut hands on the edge of heat shield
plate.
11. Remove mounting bolt (A) and fixing clip (B) so that rear cooler
pipe assembly 1 can be moved freely to secure work space.
12. Remove mounting bolt (A) so that rear cooler pipe assembly 1
can be moved freely to secure work space.
13. Remove mounting bolt (A) so that rear cooler pipe assembly 1
can be moved freely to secure work space.
14. Remove mounting bolt (A), and then disconnect rear cooler pipe
assembly 1 from front cooler pipe assembly.
CAUTION:
Cap of wrap the joint of the A/C piping with suitable material
such as vinyl tape to avoid the entry of air.
: Vehicle front
JMIIA1193ZZ
: Vehicle front
JMIIA1859ZZ
: Vehicle front
JMIIA1858ZZ
: Vehicle front
JMIIA1857ZZ
: Vehicle front
JMIIA1817ZZ
HA-40
< REMOVAL AND INSTALLATION >
COOLER PIPE AND HOSE
15. Remove front cooler pipe assembly from underneath the vehi-
cle.
CAUTION:
Cap of wrap the joint of the A/C piping with suitable material
such as vinyl tape to avoid the entry of air.
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
REAR COOLER PIPE 1
REAR COOLER PIPE 1 : Removal and Installation
INFOID:0000000009651585
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
22, "Perform Lubricant Return Operation"
REMOVAL
1.
Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to
2.
Drain engine coolant from cooling system. Refer to
3.
Remove mounting nuts (A) and bolt (B), and then remove heat
insulator.
CAUTION:
• Work when system is cool, as the exhaust system is hot
just after stopping the engine.
• Be careful not to cut hands on the edge of heat shield
plate.
4.
Remove exhaust front tube. Refer to
EX-6, "Removal and Installation"
CAUTION:
Block the openings with tape to make sure that no foreign materials get inside engine.
5.
Remove rear cooler pipe assembly 1 mounting bolt (A).
: Vehicle front
JMIIA1860ZZ
: Vehicle front
JMIIA1193ZZ
: Vehicle front
JMIIA1857ZZ
COOLER PIPE AND HOSE
HA-41
< REMOVAL AND INSTALLATION >
C
D
E
F
G
H
J
K
L
M
A
B
HA
N
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6.
Remove rear cooler pipe assembly 1 mounting bolt (A).
7.
Remove rear cooler pipe assembly 1 mounting bolt (A) and fix-
ing clip (B).
8.
Remove mounting bolt (A), and then disconnect rear cooler pipe
assembly 1 from front cooler pipe assembly.
CAUTION:
Cap of wrap the joint of the A/C piping with suitable material
such as vinyl tape to avoid the entry of air.
9.
Remove fixing clamps (A), and then disconnect heater hoses (1)
from rear cooler pipe assembly 1 (2).
10. Remove mounting bolt (A) and fixing clamps (B), and then dis-
connect rear cooler pipe assembly 1 (1) from rear cooler pipe
assembly 2 (2).
CAUTION:
Cap of wrap the joint of the A/C piping with suitable material
such as vinyl tape to avoid the entry of air.
: Vehicle front
JMIIA1858ZZ
: Vehicle front
JMIIA1859ZZ
: Vehicle front
JMIIA1817ZZ
: Vehicle front
JMIIA1818ZZ
: Vehicle front
JMIIA1820ZZ
HA-42
< REMOVAL AND INSTALLATION >
COOLER PIPE AND HOSE
11. Remove rear cooler pipe assembly 1 bracket mounting bolts and fixing clips, and then remove rear cooler
pipe assembly 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
REAR COOLER PIPE 2
REAR COOLER PIPE 2 : Removal and Installation
INFOID:0000000009651586
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
22, "Perform Lubricant Return Operation"
REMOVAL
1.
Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to
2.
Drain engine coolant from cooling system. Refer to
3.
Remove rear suspension member. Refer to
RSU-19, "Removal and Installation"
4.
Remove mounting bolt (A) and fixing clamps (B), and then dis-
connect rear cooler pipe assembly 1 (1) from rear cooler pipe
assembly 2 (2).
CAUTION:
Cap of wrap the joint of the A/C piping with suitable material
such as vinyl tape to avoid the entry of air.
5.
Remove rear bumper closing. Refer to
EXT-17, "REAR BUMPER CLOSING : Removal and Installation"
6.
Remove mounting bolt (A) and fixing clamps (B), and then dis-
connect rear cooler pipe assembly 2 from rear A/C unit assem-
bly.
CAUTION:
Cap of wrap the joint of the A/C piping and rear A/C unit
assembly with suitable material such as vinyl tape to avoid
the entry of air.
7.
Remove rear cooler pipe assembly 2 mounting bolts and fixing clips, and then remove rear cooler pipe
assembly 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
: Vehicle front
JMIIA1820ZZ
JMIIA1197ZZ
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