Nissan Altima L32. Manual - part 803

HA-32

< ON-VEHICLE REPAIR >

REFRIGERATION SYSTEM

NOTE:

Refer to 

HA-5, "Precaution for Refrigerant Connection"

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HFC-134a (R-134a) Service Procedure

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SETTING OF SERVICE TOOLS AND EQUIPMENT

WARNING:

Avoid breathing the A/C refrigerant and oil vapor or mist. Exposure may irritate eyes, nose, and throat.

Remove the HFC-134a (R-134a) from the A/C system using certified service equipment meeting the

requirements of SAE J2210 (R-134a recycling equipment) or SAE J2201 (R-134a recovery equipment).

If an accidental system discharge occurs, ventilate the work area before resuming service. Additional

health and safety information may be obtained from the refrigerant and oil manufacturers.

Discharging Refrigerant

1.

Heater and cooling unit assembly

2.

High-pressure pipe

3.

High-pressure A/C service valve

4.

Junction pipe

5.

High-pressure flexible hose

6.

Condenser and liquid tank

7.

Air deflector RH (QR25DE shown, 
VQ35DE similar)

8.

Air deflector LH (QR25DE shown, 
VQ35DE similar)

9.

Refrigerant pressure sensor

10. Low-pressure flexible hose

11. Low-pressure A/C service valve

12. Low-pressure pipe

13. Compreesor (QR25DE)

14. Compressor (VQ35DE)

A.

High-pressure pipe to heater and 
cooling unit assembly

B.

high-pressure flexible hose to com-
pressor

C.

low-pressure flexible hose to com-
pressor

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REFRIGERATION SYSTEM

HA-33

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Evacuating System and Charging Refrigerant

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HA-34

< ON-VEHICLE REPAIR >

REFRIGERATION SYSTEM

Discharging, Evacuating, and Recharging the A/C System

WJIA1923E

*1

HA-21, "Maintenance of Oil Quantity 
in Compressor"

*3

HA-25, "Checking of Refrigerant 
Leaks"

*5

HA-4, "Contaminated Refrigerant"

*2

HA-25, "Checking of Refrigerant 
Leaks"

*4

HAC-5, "Operational Check"

COMPRESSOR

HA-35

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COMPRESSOR

Removal and Installation for Compressor - QR25DE Models

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REMOVAL

1. Discharge the refrigerant. Refer to 

HA-24, "HFC-134a (R-134a) Service Procedure"

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2. Remove the drive belt. Refer to 

EM-16, "Removal and Installation"

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3. Remove the engine undercover.
4. Remove the front RH wheel and tire.
5. Remove the side cover from inside the front RH wheel well.
6. Remove the clip and reposition the power steering pipe out of the way.
7. Disconnect the compressor connector.
8. Disconnect the high-pressure flexible hose and low-pressure flexible hose from the compressor.

CAUTION:

Cap or wrap the joint of the hose with a suitable material such as vinyl tape to avoid the entry of

any contaminants. 

9. Remove the compressor bolts, then remove the compressor using power tools.

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

• Replace the O-ring of the low-pressure flexible hose and high-pressure flexible hose with new ones,

then apply A/C oil to them for installation.

• After charging the A/C refrigerant, check for leaks. Refer to 

HA-25, "Checking of Refrigerant Leaks"

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