Qashqai J11. Heater & Air conditioning System - part 12

 

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Qashqai J11. Heater & Air conditioning System - part 12

 

 

COOLER PIPE AND HOSE

HA-177

< REMOVAL AND INSTALLATION >

[TYPE 4]

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CAUTION:

Cap or wrap the joint of the A/C piping and condenser with suitable material such as vinyl tape to
avoid the entry of air.

5.

Remove high-pressure pipe 2 from the vehicle.

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-64, "Leak Test"

.

HIGH-PRESSURE PIPE 3

HIGH-PRESSURE PIPE 3 : Removal and Installation

INFOID:0000000010707921

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-

67, "Perform Lubricant Return Operation"

.

REMOVAL

1.

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

HA-65, "Recy-

cle Refrigerant"

.

2.

Disconnect fixing clip, and then remove insulator upper side.

3.

Remove mounting bolt, and then disconnect high-pressure pipe 3 and low-pressure 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.

4.

Remove mounting bolt, and then disconnect high-pressure pipe 3 from the high-pressure pipe 1.

CAUTION:

Cap or wrap the joint of the A/C piping and condenser with suitable material such as vinyl tape to
avoid the entry of air.

5.

Remove mounting bolt, and then remove high-pressure pipe 3 from the vehicle.

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-64, "Leak Test"

.

REFRIGERANT PRESSURE SENSOR

REFRIGERANT PRESSURE SENSOR : Removal and Installation

INFOID:0000000010707899

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-

67, "Perform Lubricant Return Operation"

.

REMOVAL

1.

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

HA-65, "Recy-

cle Refrigerant"

.

2.

Remove front bumper fascia assembly. Refer to 

EXT-20, "Removal and Installation"

.

3.

Clean refrigerant pressure sensor and its surrounding area, and then remove dust and rust from refriger-
ant pressure sensor.

CAUTION:

Be sure to clean carefully.

4.

Disconnect refrigerant pressure sensor connector.

5.

Use a adjustable wrench or other tool to hold the refrigerant pressure sensor mounting block, and then
remove the refrigerant pressure sensor from high-pressure pipe 1.

HA-178

< REMOVAL AND INSTALLATION >

[TYPE 4]

COOLER PIPE AND HOSE

CAUTION:

• Never damage high-pressure pipe 1.
• Cap or wrap the joint of the A/C piping with suitable material such as vinyl tape to avoid the entry

of air.

INSTALLATION

Note the following items, and then install in the reverse order of removal.

CAUTION:

• Replace O-ring with new one. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant. Refer to 

HA-64, "Leak Test"

.

CONDENSER

HA-179

< REMOVAL AND INSTALLATION >

[TYPE 4]

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CONDENSER

Exploded View

INFOID:0000000010707900

CONDENSER

CONDENSER : Removal and Installation

INFOID:0000000010707901

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-

67, "Perform Lubricant Return Operation"

.

REMOVAL

1.

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

HA-65, "Recy-

cle Refrigerant"

.

2.

Remove front bumper fascia assembly. Refer to 

EXT-20, "Removal and Installation"

3.

Remove mounting bolt, and then disconnect high-pressure pipe 1 from the condenser & liquid tank
assembly.

CAUTION:

Cap or wrap the joint of the A/C piping and condenser with suitable material such as vinyl tape to
avoid the entry of air.

4.

Remove mounting bolt, and then disconnect high-pressure pipe 2 from the condenser & liquid tank
assembly.

CAUTION:

Cap or wrap the joint of the A/C piping and condenser with suitable material such as vinyl tape to
avoid the entry of air.

5.

Disengage fixing pawls, and then remove the condenser from the vehicle.

CAUTION:

Never damage core surface of condenser.

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.

1.

Condenser & liquid tank assembly

2.

Radiator

: Pawl

JMIIA3533ZZ

HA-180

< REMOVAL AND INSTALLATION >

[TYPE 4]

CONDENSER

• Perform lubricant adjusting procedure before installing new condenser. Refer to 

HA-68, "Lubricant

Adjusting Procedure for Compressor Replacement"

.

• Check for leakages when recharging refrigerant. Refer to 

HA-64, "Leak Test"

.

A/C UNIT ASSEMBLY

HA-181

< REMOVAL AND INSTALLATION >

[TYPE 4]

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A/C UNIT ASSEMBLY

Exploded View

INFOID:0000000010707902

REMOVAL

RHD models

JMIIA3405GB

1.

A/C unit assembly

2.

Drain hose

3.

Cap

4.

Instrument stay LH

5.

Instrument stay RH

6.

Steering member

: N·m (kg-m, in-lb)

: N·m (kg-m, ft-lb)

HA-182

< REMOVAL AND INSTALLATION >

[TYPE 4]

A/C UNIT ASSEMBLY

LHD models

DISASSEMBLY

JMIIA3519GB

1.

Cap

2.

Steering member

3.

Instrument stay LH

4.

Instrument stay RH

5.

A/C unit assembly

6.

Drain hose

: N·m (kg-m, in-lb)

: N·m (kg-m, ft-lb)

A/C UNIT ASSEMBLY

HA-183

< REMOVAL AND INSTALLATION >

[TYPE 4]

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A/C unit

*1

: Automatic air conditioning

*2

: Manual air conditioning

JMIIA3520GB

1.

Heater & cooling unit case RH

2.

Blower motor assembly

3.

Filter cover RH

4.

Sub harness 

5.

PTC heater

6.

O-ring

7.

Expansion valve

8.

Main case center

9.

Sub harness

10. Cooler packing

11.

Heater pipe packing

12. Intake packing

13. Heater pipe clamp

14.

Air conditioner filter

15. Evaporator assembly

16. Case packing

17.

Heater & cooling unit case LH

18. Heater core

19. A/C auto amp.

*1

20.

Filter cover LH

21. Intake sensor

22. Intake box case lower

23.

Heater pipe cover

24. Aspirator

*1

25. Aspirator duct

*1

26.

Intake door

27. Power transistor

*1

Fan control amplifier

*2

28. Intake box case upper

29.

Foot door

30. Plate case center

31. Air mix door RH

32.

Air mix door LH

33. Center ventilator door·center ventila-

tor & defroster door rod

34. Foot door & mode door rod

35.

Side ventilator door

36. Main case rear

37. Mode door

38.

Center ventilator & defroster door

39. Air guide case

40. Side ventilator packing LH

41.

Center ventilator packing

42. Side ventilator packing RH

43. Defroster packing

: Always replace after every disassembly.

: N·m (kg-m, in-lb)

HA-184

< REMOVAL AND INSTALLATION >

[TYPE 4]

A/C UNIT ASSEMBLY

Heater unit

A/C UNIT ASSEMBLY

A/C UNIT ASSEMBLY : Removal and Installation

INFOID:0000000010707903

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-

67, "Perform Lubricant Return Operation"

.

REMOVAL

1.

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

HA-65, "Recy-

cle 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-185

< REMOVAL AND INSTALLATION >

[TYPE 4]

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2.

Drain engine coolant from cooling system. Refer to 

CO-94, "Draining"

 (K9K engine models) or 

CO-119,

"Draining"

 (R9M engine models).

3.

Remove front wiper drive assembly. Refer to 

WW-81, "WIPER DRIVE ASSEMBLY : Removal and Installa-

tion"

.

4.

Remove fixing clip, and then remove insulator upper side.

5.

Remove mounting bolt, and then disconnect low-pressure pipe and high-pressure pipe 3 from expansion
valve. (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 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.

7.

Remove instrument panel assembly. Refer to 

IP-13, "Removal and Installation"

.

8.

Remove rear floor duct 1. Refer to 

VTL-14, "REAR FLOOR DUCT 1 : Removal and Installation"

.

9.

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

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

11. Remove ground bolts.

12. Remove the BCM mounting screws.

13. Remove the J/B mounting screws.
14. 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.

15. 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"

.

16. Remove caps from steering member mounting bolts.

JMIIA3353ZZ

JMIIA3407ZZ

HA-186

< REMOVAL AND INSTALLATION >

[TYPE 4]

A/C UNIT ASSEMBLY

17. 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.

18. 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-64, "Leak Test"

.

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

(2) and mark (A) of drain hose.

• Refer to 

CO-94, "Refilling"

 (K9K engine models) or 

CO-119, "Refilling"

 (R9M engine models) when filling

radiator with engine coolant.

EVAPORATOR

JMIIA3362ZZ

JMIIA3408ZZ

A/C UNIT ASSEMBLY

HA-187

< REMOVAL AND INSTALLATION >

[TYPE 4]

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EVAPORATOR : Removal and Installation

INFOID:0000000010707904

REMOVAL

1.

Remove A/C unit assembly. Refer to 

HA-184, "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.

6.

Separate heater & cooling unit case assembly.

7.

Remove evaporator assembly from A/C unit case.

8.

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-67, "Lubricant

Adjusting Procedure for Components Replacement Except Compressor"

.

HEATER CORE

HEATER CORE : Removal and Installation

INFOID:0000000010707905

REMOVAL

1.

Remove A/C unit assembly. Refer to 

HA-184, "A/C UNIT ASSEMBLY : Removal and Installation"

.

2.

Remove foot duct LH. Refer to 

VTL-14, "FOOT DUCT : Removal and Installation"

.

: Pawl

JMIIA3382ZZ

JMIIA3383ZZ

: Pawl

JMIIA3384ZZ

HA-188

< REMOVAL AND INSTALLATION >

[TYPE 4]

A/C UNIT ASSEMBLY

3.

Remove fixing screws (A), 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-94, "Refilling"

 (K9K engine models) or 

CO-119, "Refilling"

 (R9M engine models) when filling radi-

ator with engine coolant.

EXPANSION VALVE

EXPANSION VALVE : Removal and Installation

INFOID:0000000010707906

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-

67, "Perform Lubricant Return Operation"

.

REMOVAL

1.

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

HA-65, "Recy-

cle Refrigerant"

.

2.

Remove mounting bolt, and then disconnect low-pressure pipe and high-pressure pipe 3 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.

3.

Remove mounting bolts, and then remove expansion valve.

JMIIA3386ZZ

: Pawl

JMIIA3387ZZ

JMIIA3388ZZ

A/C UNIT ASSEMBLY

HA-189

< REMOVAL AND INSTALLATION >

[TYPE 4]

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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.

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-64, "Leak Test"

.

HA-190

< SERVICE DATA AND SPECIFICATIONS (SDS) 

[TYPE 4]

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

Compressor

INFOID:0000000010707911

Lubricant

INFOID:0000000010707912

Refrigerant

INFOID:0000000010707913

Engine Idling Speed

INFOID:0000000010707914

Refer to 

ECK-405, "Idle Speed"

 (K9K engine models) or 

EC9-416, "Idle Speed"

 (R9M engine models).

Belt Tension

INFOID:0000000010707915

Refer to 

EM-499, "Drive Belt"

 (K9K engine models) or 

EM-635, "Drive Belts"

 (R9M engine models).

Model

Denso make

6SBH14

Type

Swash plate

Displacement

cm

3

 (cu in)/rev

Maximum

140 (8.6)

Direction of rotation

Clockwise (viewed from clutch)

Drive belt

Poly V

Disc to pulley clearance
mm (in)

Standard

0.21 – 0.55 (0.008 – 0.022)

Name

ND-OIL8

Capacity

m

 (Imp fl oz)

Total in system

110 (3.9)

Compressor (service part) charging 
amount

110 (3.9)

Type

HFC-134a (R-134a)

Capacity
kg (lb)

0.5 (1.1)

 

 

 

 

 

 

 

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