Infiniti G37 Coupe. Manual — part 752
HA-54
< ON-VEHICLE REPAIR >
EVAPORATOR
Removal and Installation
INFOID:0000000001675654
REMOVAL
1.
Remove low-pressure pipe 1 and high-pressure pipe 2. Refer to
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.
2.
Slide evaporator (1) from heater & cooling unit assembly.
3.
Remove intake sensor (2) from evaporator, and then remove
evaporator.
4.
Remove mounting bolts (A), and then remove expansion valve
(1).
CAUTION:
Cap or wrap the joint of evaporator and expansion valve
with suitable material such as vinyl tape to avoid the entry
of air.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Female-side piping connection is thin and easy to deform. Slowly insert the male-side piping
straight in axial direction.
• Insert piping securely until a click is heard.
• After piping connection is completed, pull male-side piping by hand to make sure that connection
does not come loose.
• O-rings differ from low-pressure flexible hose (high-pressure pipe 1) and low-pressure pipe 1 (high-
pressure pipe 2).
• Mark the mounting position of intake sensor bracket prior to removal so that the reinstalled sensor
can be located in the same position.
• Check for leakages when recharging refrigerant.
37. Max. cool door lever
38.
Foot door link
39.
Defroster door link
40. Max. cool door link
41.
Main link sub
42.
Evaporator cover
43. Heater & cooling unit case (right)
44.
Evaporator
45.
Drain hose
46. Clamp
47.
Air mix door (Slide door)
48.
Air mix door adapter
49. Heater pipe cover
50.
Max. cool door (left)
51.
Defroster door (left)
52. Center case
53.
Defroster door (right)
54.
Max. cool door (right)
*
With left and right ventilation temperature separately system.
for symbols in the figure.
JSIIA0052ZZ
JSIIA0102ZZ
EXPANSION VALVE
HA-55
< ON-VEHICLE REPAIR >
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EXPANSION VALVE
Exploded View
INFOID:0000000001713756
1.
Aspirator
2.
Aspirator hose
3.
Front heater duct
4.
Foot duct (left)
5.
Defroster seal
6.
Packing
7.
Ventilator seal
8.
Ventilator door
9.
Foot duct (right)
10.
Defroster door lever
11.
Foot door lever
12. Ventilator door lever
13.
Ventilator door link
14.
Main link
15. Mode door motor bracket
16.
Mode door motor
17.
Air mix door motor (passenger side)
18. Intake sensor
19.
Intake sensor bracket
20.
O-ring
21. Low-pressure pipe 1
22.
High-pressure pipe 2
23.
Expansion valve
24. Cooler pipe grommet
25.
Insulator
26.
Evaporator cover adapter
27. Heater pipe bracket
28.
Case rubber
29.
Case packing
30. Heater & cooling unit case (left)
31.
Heater pipe grommet
32.
Heater core
33. Air mix door motor (driver side)
*
34.
Foot door (left)
35.
Rear ventilator door
36. Foot door (right)
JSIIA0863GB
HA-56
< ON-VEHICLE REPAIR >
EXPANSION VALVE
Removal and Installation
INFOID:0000000001675656
REMOVAL
1.
Remove low-pressure pipe 1 and high-pressure pipe 2. Refer to
2.
Remove mounting bolts (A), and then remove expansion valve
(1).
CAUTION:
Cap or wrap the joint of evaporator and expansion valve
with suitable material such as vinyl tape to avoid the entry
of air.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• O-rings are different from low-pressure pipe 1 (high-pressure pipe 1) and low-pressure pipe 2 (high-
pressure pipe 2).
• Check for leakages when recharging refrigerant.
37. Max. cool door lever
38.
Foot door link
39.
Defroster door link
40. Max. cool door link
41.
Main link sub
42.
Evaporator cover
43. Heater & cooling unit case (right)
44.
Evaporator
45.
Drain hose
46. Clamp
47.
Air mix door (Slide door)
48.
Air mix door adapter
49. Heater pipe cover
50.
Max. cool door (left)
51.
Defroster door (left)
52. Center case
53.
Defroster door (right)
54.
Max. cool door (right)
*
With left and right ventilation temperature separately system.
for symbols in the figure.
JSIIA0102ZZ
SERVICE DATA AND SPECIFICATIONS (SDS)
HA-57
< SERVICE DATA AND SPECIFICATIONS (SDS)
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SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Compressor
INFOID:0000000001675657
Lubricant
INFOID:0000000001675658
Refrigerant
INFOID:0000000001675659
Engine Idling Speed
INFOID:0000000001675660
Belt Tension
INFOID:0000000001675661
.
Model
VALEO THERMAL SYSTEMS JAPAN make
DCS-17EC
Type
Variable displacement swash plate
Displacement
cm
3
(cu in)/rev
Max.
171 (10.4)
Cylinder bore
×
stroke (Max.)
mm (in.)
32 (1.26)
×
30.5 (1.20)
Direction of rotation
Clockwise (viewed from clutch)
Drive belt
Poly V
Disc to pulley clearance
Standard
0.3 - 0.6 mm (0.012 - 0.024 in)
Model
VALEO THERMAL SYSTEMS JAPAN make
DCS-17EC
Name
Nissan A/C System Oil Type S (DH-PS)
Capacity
m
(US fl oz, lmp fl oz)
Total in system
150 (5.03, 5.3)
Compressor (service part) charging
amount
150 (5.03, 5.3)
Type
HFC-134a (R-134a)
Capacity
kg (lb)
0.55 (1.21)
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