Nissan Qashqai J11. Manual - part 1054

HA-42

< REMOVAL AND INSTALLATION >

[TYPE 1]

A/C UNIT ASSEMBLY

Heater unit

A/C UNIT ASSEMBLY

A/C UNIT ASSEMBLY : Removal and Installation

INFOID:0000000010451996

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-

23, "Perform Lubricant Return Operation"

.

REMOVAL

1.

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

HA-21,

"Recycle Refrigerant"

. (If equipped)

JMIIA3522ZZ

1.

Heater & cooling unit case RH

2.

Blower motor assembly

3.

Filter cover RH

4.

Sub harness 

5.

PTC heater

6.

Main case center

7.

Sub harness

8.

Cooler packing

9.

Heater pipe packing

10. Intake packing

11.

Heater pipe clamp

12. Air conditioner filter

13. Evaporator assembly

14.

Case packing

15. Heater & cooling unit case LH

16. Heater core

17.

Filter cover LH

18. Intake sensor

19. Intake box case lower

20.

Heater pipe cover

21. Intake door

22. Power transistor

23.

Intake box case upper

24. Foot door

25. Plate case center

26.

Air mix door RH

27. Air mix door LH

28. Center ventilator door·center venti-

lator & defroster door rod

29.

Foot door & mode door rod

30. Side ventilator door

31. Main case rear

32.

Mode door

33. Center ventilator & defroster door

34. Air guide case

35.

Side ventilator packing LH

36. Center ventilator packing

37. Side ventilator packing RH

38.

Defroster packing

A/C UNIT ASSEMBLY

HA-43

< REMOVAL AND INSTALLATION >

[TYPE 1]

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2.

Drain engine coolant from cooling system. Refer to 

CO-11, "Draining"

.

3.

Remove front wiper drive assembly. Refer to 

WW-78, "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. Refer to

HA-34, "INTERNAL HEAT EXCHANGER PIPE : 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.

6.

Remove air duct. Refer to 

EM-23, "Removal and Installation"

.

7.

Remove clamps, and then disconnect heater hoses from A/C unit assembly.

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.

8.

Remove instrument panel assembly. Refer to 

IP-13, "Removal and Installation"

.

9.

Remove rear floor duct 1. Refer to 

VTL-15, "REAR FLOOR DUCT 1 : Removal and Installation"

.

10. Remove mounting nuts (A), and then remove instrument stay LH and RH.

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

12. Remove ground bolts.

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-10, "Removal and Installation"

.

17. Remove caps from steering member mounting bolts.

JMIIA3353ZZ

JMIIA3407ZZ

HA-44

< REMOVAL AND INSTALLATION >

[TYPE 1]

A/C UNIT ASSEMBLY

18. Remove steering member mounting bolts (A) and A/C unit mounting bolts (B), 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.
• Check for leakages when recharging refrigerant. Refer to 

HA-20, "Leak Test"

.

NOTE:
• When installing drain hose (1), match the riv porsion (B) of A/C unit

(2) and mark (A) of drain hose.

• Refer to 

CO-11, "Refilling"

 when filling radiator with engine coolant.

EVAPORATOR

JMIIA3362ZZ

JMIIA3408ZZ

A/C UNIT ASSEMBLY

HA-45

< REMOVAL AND INSTALLATION >

[TYPE 1]

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EVAPORATOR : Removal and Installation

INFOID:0000000010451997

REMOVAL

1.

Remove A/C unit assembly. Refer to 

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

.

2.

Remove fixing screws (A) and disengage fixing pawls.

3.

Remove main case rear.

4.

Remove fixing screws (A), and then remove intake box assem-
bly.

5.

Remove fixing screws (A) and disengage fixing pawls, and then
separate heater & cooling unit case assembly.

6.

Remove evaporator assembly from heater & cooling unit case.

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-23, "Lubricant

Adjusting Procedure for Components Replacement Except Compressor"

.

HEATER CORE

HEATER CORE : Removal and Installation

INFOID:0000000010451998

REMOVAL

1.

Remove A/C unit assembly. Refer to 

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

.

2.

Remove foot duct LH. Refer to 

VTL-15, "FOOT DUCT : Removal and Installation"

.

: Pawl

JMIIA3382ZZ

JMIIA3383ZZ

: Pawl

JMIIA3384ZZ