Infiniti G37 Coupe. Manual - part 1374

PREPARATION

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(J-39183)
Manifold gauge set (with hoses 
and couplers)

Identification:
• The gauge face indicates HFC-134a (R-

134a).

Fitting size: Thread size

• 1/2

″

-16 ACME

Service hoses
• High-pressure side hose

(J-39501-72)

• Low-pressure side hose

(J-39502-72)

• Utility hose

(J-39476-72)

Hose color:
• Low-pressure side hose: Blue with black 

stripe

• High-pressure side hose: Red with black 

stripe

• Utility hose: Yellow with black stripe or 

green with black stripe

Hose fitting to gauge:

• 1/2

″

-16 ACME

Service couplers
• High-pressure side coupler

(J-39500-20)

• Low-pressure side coupler

(J-39500-24)

Hose fitting to service hose:
M14 x 1.5 fitting is optional or permanently 
attached.

(J-39650)
Refrigerant weight scale

For measuring of refrigerant
Fitting size: Thread size

1/2

″

-16 ACME

(J-39649)
Vacuum pump
(Including the isolator valve)

Capacity:
• Air displacement: 4 CFM
• Micron rating: 20 microns
• Oil capacity: 482 g (17 oz.)
Fitting size: Thread size

• 1/2

″

-16 ACME

Tool number

(Kent-Moore No.)

Tool name

Description

RJIA0196E

S-NT201

S-NT202

S-NT200

S-NT203

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PREPARATION

Commercial Service Tool

INFOID:0000000001713759

Sealant or/and Lubricant

INFOID:0000000001713760

HFC-134a (R-134a) Service Tool and Equipment

• Never mix HFC-134a (R-134a) refrigerant and/or its specified lubricant with CFC-12 (R-12) refrigerant and/

or its lubricant.

• Separate and non-interchangeable service equipment must be used for handling each type of refrigerant/

lubricant.

• Refrigerant container fittings, service hose fittings and service equipment fittings (equipment which handles

refrigerant and/or lubricant) are different between CFC-12 (R-12) and HFC-134a (R-134a). This is to avoid
mixed use of the refrigerants/lubricant.

• Never use adapters that convert one size fitting to another: refrigerant/lubricant contamination occurs and

compressor malfunction may result.

Tool name

Description

Refrigerant identifier equipment

Checking for refrigerant purity and 
system contamination

Power tool

For loosening bolts and nuts

RJIA0197E

PBIC0190E

Tool name

Description

HFC-134a (R-134a) refrigerant

Container color: Light blue
Container marking: HFC-134a (R-
134a)
Fitting size: Thread size

• Large container 1/2

″

-16 ACME

Nissan A/C System Oil Type S 
(DH-PS)

Type: Polyalkylene glycol oil (PAG), 
type S (DH-PS)
Application:
HFC-134a (R-134a) swash plate com-
pressors (Nissan only)

Capacity: 40 m

 (1.4 US fl oz., 1.4 

Imp fl oz.) 

S-NT196

S-NT197

IN-CABIN MICROFILTER

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ON-VEHICLE MAINTENANCE

IN-CABIN MICROFILTER

Exploded View

INFOID:0000000001713717

Removal and Installation

INFOID:0000000001665923

REMOVAL

1.

Remove instrument assist lower panel. Refer to 

IP-11, "Exploded View"

.

2.

Remove filter cover (1), and then remove in-cabin microfilter (2).

INSTALLATION

Installation is basically the reverse order of removal.

1.

Adapter

2.

Intake box (right)

3.

Intake door lever 2

4.

Intake door motor

5.

Intake door link

6.

Intake door lever 1

7.

Filter cover

8.

In-cabin microfilter

9.

Intake upper case

10. Intake lower case

11.

Blower motor assembly

12. Seal

13. Intake box (left)

14.

Intake door 1

15. Intake door 2

JSIIA0009ZZ

JSIIA0034ZZ

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IN-CABIN MICROFILTER

Replacement

INFOID:0000000001665924

Replace in-cabin microfilter.
Refer to 

MA-6, "Schedule 1"

 and 

MA-8, "Schedule 2"

.

Affix a caution label inside the glove box when replacing filter.