Nissan X-Trail 32. Manual - part 1346

A/C UNIT ASSEMBLY

HA-43

< REMOVAL AND INSTALLATION >

[R9M (EXCEPT FOR RUSSIA)]

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A/C UNIT ASSEMBLY : Removal and Installation

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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

1.

Use a refrigerant collecting equipment (for HFO-1234yf) to discharge the refrigerant. Refer to 

HA-20,

"Recycle Refrigerant"

.

2.

Drain engine coolant from cooling system. Refer to 

CO-64, "Draining"

.

3.

Remove front wiper drive assembly. Refer to 

WW-85, "WIPER DRIVE ASSEMBLY : Removal and Installa-

tion"

.

4.

Remove fixing clip, and then remove insulator upper side.

5.

Remove mounting bolt, and then disconnect internal heat exchanger pipe from expansion valve.

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.

6.

Remove clamp air inlet hose 2. Refer to 

EM-310, "Exploded View"

.

7.

Remove clamps 

, and then disconnect heater hoses from A/C

unit assembly.

CAUTION:

• Some coolant may spill when heater hoses are discon-

nected.

• Close off the coolant inlet and outlet on the heater core (2

locations) with shop cloths.

8.

Remove instrument panel assembly. Refer to 

IP-14, "Removal and Installation"

 (LHD models) or 

IP-41,

"Removal and Installation"

 (RHD models).

9.

Remove rear floor duct 1. Refer to 

VTL-13, "REAR FLOOR DUCT 1 : Removal and Installation"

.

10. Remove mounting nuts 

, and then remove instrument stay LH and RH.

11. Disconnect drain hose from A/C unit assembly.

12. Remove ground bolts.

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HA-44

< REMOVAL AND INSTALLATION >

[R9M (EXCEPT FOR RUSSIA)]

A/C UNIT ASSEMBLY

13. Remove the BCM mounting screws.

14. Remove the J/B mounting screws 

.

15. 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.

16. Remove mounting nuts, and then move steering column assembly to a position where it dose not inhibit

work. Refer to 

ST-13, "Exploded View"

.

17. Remove caps from steering member mounting bolts.

18. Remove steering member mounting bolts 

 and A/C unit mounting bolts 

, and then remove steering

member from the vehicle.

CAUTION:

When removing steering member, 2 workers are required to prevent it from dropping.

19. Remove A/C unit assembly.

CAUTION:

When removing A/C unit assembly, 2 workers are required to prevent it from dropping.

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.

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A/C UNIT ASSEMBLY

HA-45

< REMOVAL AND INSTALLATION >

[R9M (EXCEPT FOR RUSSIA)]

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• Check for leakages when recharging refrigerant. Refer to 

HA-19, "Leak Test"

.

NOTE:
• When installing drain hose 

, match the rib porsion 

 of A/C unit

 and mark 

 of drain hose.

• Refer to 

CO-65, "Refilling"

 when filling radiator with engine coolant.

EVAPORATOR

EVAPORATOR : Removal and Installation

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REMOVAL

1.

Remove A/C unit assembly. Refer to 

HA-43, "A/C UNIT ASSEMBLY : Removal and Installation"

.

2.

Remove fixing screws 

 and disengage fixing pawls.

3.

Remove main case rear.

4.

Remove fixing screws 

, and then remove intake box assembly.

5.

Remove fixing screws 

 and disengage fixing pawls, and then

separate heater & cooling unit case assembly.

6.

Remove evaporator assembly from heater & cooling unit case.

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: Pawl

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: Pawl

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HA-46

< REMOVAL AND INSTALLATION >

[R9M (EXCEPT FOR RUSSIA)]

A/C UNIT ASSEMBLY

7.

Remove mounting bolts, and then remove expansion valve from evaporator.

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.
• 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

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REMOVAL

1.

Remove A/C unit assembly. Refer to 

HA-43, "A/C UNIT ASSEMBLY : Removal and Installation"

.

2.

Remove foot duct LH. Refer to 

VTL-12, "FOOT DUCT : Removal and Installation"

.

3.

Remove fixing screws 

, and then remove heater pipe cover.

4.

Remove heater pipe packing.

5.

Disengage fixing pawl, and then remove heater pipe clamp.

6.

Remove heater core from A/C unit assembly.

INSTALLATION

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

CO-65, "Refilling"

 when filling radiator with engine coolant.

EXPANSION VALVE

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: Pawl

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