Nissan Qashqai J11. Manual — part 1051
HA-30
< SYMPTOM DIAGNOSIS >
[TYPE 1]
NOISE
NOISE
Symptom Table
INFOID:0000000010451980
Symptom
Noise source
Probable cause
Corrective action
Unusual noise from compressor
when A/C is ON.
Inside of compressor
Wear, breakage, or clogging of foreign
material in inner parts.
Check compressor oil. Re-
fer to
.
Magnet clutch
Contact of clutch disc with pulley.
Check clearance between
clutch disc and pulley. Refer
to
.
Compressor body
Loosened compressor mounting bolts.
Check bolts for tightness.
Refer to
Unusual noise from cooler piping.
Cooler piping (pipe and
flexible hose)
Improper installation of clip and brack-
et.
Check the installation condi-
tion of the cooler piping. Re-
fer to
Unusual noise from expansion
valve when A/C is ON.
Expansion valve
Shortage of refrigerant.
• Check for leakage.
• Collect all refrigerant,
evacuate refrigerant cycle
again, and then refill it
with the specified amount
of refrigerant.
Wear, breakage, or clogging of foreign
material in inner parts.
Eliminate foreign material
from expansion valve, or re-
place it.
Unusual noise from belt.
—
Loosened belt
Check belt tension. Refer to
.
Internal compressor parts get locked
Replace compressor.
COMPRESSOR
HA-31
< REMOVAL AND INSTALLATION >
[TYPE 1]
C
D
E
F
G
H
J
K
L
M
A
B
HA
N
O
P
REMOVAL AND INSTALLATION
COMPRESSOR
Exploded View
INFOID:0000000010451982
REMOVAL
Removal and Installation
INFOID:0000000010451983
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
23, "Perform Lubricant Return Operation"
REMOVAL
1.
Use a refrigerant collecting equipment (for HFO-1234yf) to discharge the refrigerant. Refer to
2.
Remove drive belt. Refer to
EM-16, "Removal and Installation"
.
3.
Remove mounting bolts, and then disconnect low-pressure flexible hose and 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.
Disconnect compressor harness connectors.
5.
Remove mounting bolts and nut, and then remove compressor form 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.
• Perform lubricant adjusting procedure before installing new compressor. Refer to
Adjusting Procedure for Compressor Replacement"
• Check for leakages when recharging refrigerant. Refer to
• Check tension of the drive belt after installing compressor. Refer to
1.
Compressor
: N·m (kg-m, ft-lb)
JMIIA3525GB
HA-32
< REMOVAL AND INSTALLATION >
[TYPE 1]
COMPRESSOR
Inspection
INFOID:0000000010451985
CHECK DISC TO PULLEY CLEARANCE
Check the clearance (B) between pulley assembly (1) and clutch
disc (2) along the entire periphery with a feeler gauge (A).
CAUTION:
Replace compressor if the specified clearance is not obtained,
replace adjusting spacer and readjust.
Clearance
: Refer to
JSIIA0087ZZ
COOLER PIPE AND HOSE
HA-33
< REMOVAL AND INSTALLATION >
[TYPE 1]
C
D
E
F
G
H
J
K
L
M
A
B
HA
N
O
P
COOLER PIPE AND HOSE
Exploded View
INFOID:0000000010451986
HIGH-PRESSURE FLEXIBLE HOSE
HIGH-PRESSURE FLEXIBLE HOSE : Removal and Installation
INFOID:0000000010451987
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
23, "Perform Lubricant Return Operation"
1.
A/C unit assembly
2.
O-ring
3.
Internal heat exchanger pipe
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
: Always replace after every disassembly.
: N·m (kg-m, in-lb)
: N·m (kg-m, ft-lb)
JMIIA3516GB
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