Nissan March K13. Manual - part 366

A/C UNIT ASSEMBLY

HA-43

< REMOVAL AND INSTALLATION >

Remove clamps, and then disconnect heater hoses from A/C unit assembly. (If equipped)

CAUTION:

• Some coolant may spill when heater hoses are disconnected.
• Close off the coolant inlet and outlet on the heater core (2 locations) with shop cloths.

Move steering column assembly to a position where it dose not inhibit work. Refer to

ST-11, "Removal and

Installation"

Disconnect drain hose from A/C unit assembly.

Disconnect the harness connectors and clips required to remove the steering member, and then move the
vehicle harness to the position without hindrance for work.

Remove the BCM mounting screws.

10. Remove the J/B mounting screws.

11. Remove ground bolts.

12. Remove mounting bolts, and then remove steering member and A/C unit assembly from the vehicle.
13. Remove mounting bolts, and then remove A/C unit assembly from the steering member.

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.
• Check for leakages when recharging refrigerant. Refer to

HA-18, "Leak Test"

NOTE:
Refer to

CO-10, "Refilling"

when filling radiator with engine coolant.

EVAPORATOR

EVAPORATOR : Removal and Installation

INFOID:0000000006032344

REMOVAL

Remove A/C unit assembly. Refer to

HA-42, "A/C UNIT ASSEMBLY : Removal and Installation"

Disassemble A/C unit assembly, and then remove evaporator assembly.

Remove intake sensor from evaporator assembly. (automatic air conditioner)

Remove thermo control amp. from evaporator assembly. (manual air conditioner)

Remove mounting bolts, and then remove evaporator.

INSTALLATION

Installation is basically the reverse order of removal.

CAUTION:

• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• When install the intake sensor (automatic air conditioner) or the thermo control amp. (manual air

conditioner), set the same position before replacement.

• Never rotate the bracket insertion part when removing and installing the intake sensor (automatic air

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

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

HA-22, "Lubricant

Adjusting Procedure for Components Replacement Except Compressor"

HEATER CORE

HEATER CORE : Removal and Installation

INFOID:0000000006032345

REMOVAL

Remove instrumetn panel assembly. Refer to

IP-13, "Removal and Installation"

Remove heater packing.

Remove heater flange.

Remove foot duct LH. Refer to

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

Remove mounting screw, and then remove bracket.

Remove heater core from A/C unit assembly.

HA-44

< REMOVAL AND INSTALLATION >

A/C UNIT ASSEMBLY

INSTALLATION

Note the following items, and then install in the reverse order of removal.
NOTE:
Refer to

CO-10, "Refilling"

when filling radiator with engine coolant.

EXPANSION VALVE

EXPANSION VALVE : Removal and Installation

INFOID:0000000006053276

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

HA-

22, "Perform Lubricant Return Operation"

REMOVAL

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

HA-20, "Recy-

cle Refrigerant"

Remove A/C unit assembly. Refer to

HA-42, "A/C UNIT ASSEMBLY : Removal and Installation"

Remove gromet.

Remove mounting bolts, and then remove expansion valve.

CAUTION:

Cap or wrap the joint of the evaporator and expansion valve with suitable material such as vinyl
tape to avoid the entry of air.