Nissan Versa Sedan. Manual - part 485

HEATER CORE

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HEATER CORE

Removal and Installation

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REMOVAL

1. Remove A/C unit assembly. Refer to 

HA-40, "Removal and Installation"

.

2. Remove heater packing.
3. Remove heater flange.
4. Remove foot duct (LH). Refer to 

VTL-6, "FOOT DUCT : Removal and Installation"

.

5. Remove the screw and the bracket.
6. Remove heater core from A/C unit assembly.

INSTALLATION

Installation is in the reverse order of removal.

NOTE:

Refer to 

CO-9, "Refilling Engine Coolant"

 when filling radiator with engine coolant.

HA-40

< REMOVAL AND INSTALLATION >

A/C UNIT ASSEMBLY

A/C UNIT ASSEMBLY

Exploded View

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Removal and Installation

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CAUTION:

• Perform oil return operation before each refrigeration system disassembly. However, if a large

amount of refrigerant or oil is detected, do not perform oil return operation. Refer to 

HA-21, "Perform

Oil Return Operation"

.

NOTE:

When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-

ing.

REMOVAL

1. Use refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to 

HA-19, "Recy-

cle Refrigerant"

.

2. Drain engine coolant from cooling system. Refer to 

CO-8, "Draining Engine Coolant"

.

3. Remove low-pressure flexible hose and high-pressure pipe. Refer to 

HA-33, "Removal and Installation"

and 

HA-35, "Removal and Installation"

 (if equipped).

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.

4. Remove clamps and disconnect heater hoses from A/C unit assembly (if equipped).
5. Remove the instrument panel assembly. Refer to 

IP-15, "Removal and Installation"

.

1.

Cap

2.

Steering member

3.

Cap

4.

Bracket

5.

A/C unit assembly

Pawl

AWIIA1457GB

A/C UNIT ASSEMBLY

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6. Disconnect drain hose from A/C unit assembly.
7. Disconnect the necessary harness connectors and clips required to remove the steering member.

• Position the vehicle harness as necessary.

8. Remove the BCM screws.
9. Remove the J/B screws.
10. Remove ground bolts.
11. Remove the bolts, steering member and A/C unit assembly.
12. Remove bolts and A/C unit assembly from the steering member.

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

• Do not reuse O-rings.

• Apply A/C oil to the O-rings of the low-pressure flexible hose and high pressure flexible pipe for

installation.

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

HA-17, "Leak Test"

.

NOTE:

Refer to 

CO-9, "Refilling Engine Coolant"

 when filling radiator with engine coolant.

HA-42

< REMOVAL AND INSTALLATION >

EVAPORATOR

EVAPORATOR

Removal and Installation

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REMOVAL

1. Remove A/C unit assembly. Refer to 

HA-40, "Removal and Installation"

.

2. Disassemble A/C unit assembly and the evaporator assembly.
3. Remove thermo control amp. from evaporator assembly.

CAUTION:

If reusing the evaporator, mark the location of the thermo control amp. for installation.

4. Remove bolts and the evaporator.

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

• Do not reuse O-rings.

• Apply A/C oil to the new O-rings for installation.

• When installing the intake sensor (automatic air conditioner) or the thermo control amp. (manual air

conditioner), place in the same position as before replacement.

• Do not rotate the bracket insertion part when removing and installing the intake sensor (automatic

air conditioner) or the thermo control amp. (manual air conditioner).

• Perform oil adjusting procedure after installing new evaporator. Refer to 

HA-21, "Oil Adjusting Pro-

cedure for Components Replacement Except Compressor"

.

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

HA-17, "Leak Test"

.