Qashqai J11. Heater & Air conditioning System - part 9

COOLER PIPE AND HOSE

HA-129

< REMOVAL AND INSTALLATION >

[TYPE 3]

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1.

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

HA-112,

"Recycle Refrigerant"

.

2.

Remove front bumper fascia assembly. Refer to 

EXT-20, "Removal and Installation"

.

3.

Remove mounting bolt, and then disconnect high-pressure pipe 2 from high-pressure flexible hose.

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 2 from 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.

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-110, "Leak Test"

.

HIGH-PRESSURE PIPE 3

HIGH-PRESSURE PIPE 3 : Removal and Installation

INFOID:0000000010709171

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-

114, "Perform Lubricant Return Operation"

.

REMOVAL

1.

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

HA-112,

"Recycle 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. (HRA2DDT engine models and MR16DDT engine models)

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 and low-pressure flexible hose from
expansion valve. (MR20DD engine models)

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.

5.

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

CAUTION:

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

6.

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-110, "Leak Test"

.

REFRIGERANT PRESSURE SENSOR

REFRIGERANT PRESSURE SENSOR : Removal and Installation

INFOID:0000000010501667

CAUTION:

HA-130

< REMOVAL AND INSTALLATION >

[TYPE 3]

COOLER PIPE AND HOSE

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-

114, "Perform Lubricant Return Operation"

.

REMOVAL

1.

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

HA-112,

"Recycle 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.

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-110, "Leak Test"

.

CONDENSER

HA-131

< REMOVAL AND INSTALLATION >

[TYPE 3]

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CONDENSER

Exploded View

INFOID:0000000010501668

CONDENSER

CONDENSER : Removal and Installation

INFOID:0000000010501669

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-

114, "Perform Lubricant Return Operation"

.

REMOVAL

1.

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

HA-112,

"Recycle 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 & liquid tank assembly 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-132

< REMOVAL AND INSTALLATION >

[TYPE 3]

CONDENSER

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

HA-114, "Lubricant

Adjusting Procedure for Components Replacement Except Compressor"

.

• Check for leakages when recharging refrigerant. Refer to 

HA-110, "Leak Test"

.

A/C UNIT ASSEMBLY

HA-133

< REMOVAL AND INSTALLATION >

[TYPE 3]

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A/C UNIT ASSEMBLY

Exploded View

INFOID:0000000010501670

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-134

< REMOVAL AND INSTALLATION >

[TYPE 3]

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-135

< REMOVAL AND INSTALLATION >

[TYPE 3]

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A/C unit

•

*1

: Automatic air conditioner

•

*2

: Manual air conditioner

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-136

< REMOVAL AND INSTALLATION >

[TYPE 3]

A/C UNIT ASSEMBLY

Heater unit

A/C UNIT ASSEMBLY

A/C UNIT ASSEMBLY : Removal and Installation

INFOID:0000000010501671

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-

114, "Perform Lubricant Return Operation"

.

REMOVAL

1.

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

HA-112,

"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-137

< REMOVAL AND INSTALLATION >

[TYPE 3]

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EVAPORATOR : Removal and Installation

INFOID:0000000010501672

REMOVAL

1.

Remove A/C unit assembly. Refer to 

HA-134, "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& cooler unit case assembly.

6.

Remove evaporator assembly from heater& cooler unit case.

7.

Remove mounting bolts, and then remove expansion valve from 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.
• Perform lubricant adjusting procedure after installing new evaporator. Refer to 

HA-113, "Lubricant

Adjusting Procedure for Components Replacement Except Compressor"

.

HEATER CORE

HEATER CORE : Removal and Installation

INFOID:0000000010501673

REMOVAL

1.

Remove A/C unit assembly. Refer to 

HA-134, "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

HA-138

< REMOVAL AND INSTALLATION >

[TYPE 3]

A/C UNIT ASSEMBLY

19. 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.

20. 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-110, "Leak Test"

.

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

(2) and mark (A) of drain hose.

• Refer to 

CO-12, "Refilling"

 (HRA2DDT engine models), 

CO-67, "Refilling"

 (MR20DD engine models) or 

CO-

43, "Refilling"

 (MR16DDT engine models) when filling radiator with engine coolant.

EVAPORATOR

JMIIA3362ZZ

JMIIA3408ZZ

A/C UNIT ASSEMBLY

HA-139

< REMOVAL AND INSTALLATION >

[TYPE 3]

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EVAPORATOR : Removal and Installation

INFOID:0000000010501672

REMOVAL

1.

Remove A/C unit assembly. Refer to 

HA-136, "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& cooler unit case assembly.

6.

Remove evaporator assembly from heater& cooler unit case.

7.

Remove mounting bolts, and then remove expansion valve from 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.
• Perform lubricant adjusting procedure after installing new evaporator. Refer to 

HA-114, "Lubricant

Adjusting Procedure for Components Replacement Except Compressor"

.

HEATER CORE

HEATER CORE : Removal and Installation

INFOID:0000000010501673

REMOVAL

1.

Remove A/C unit assembly. Refer to 

HA-136, "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-140

< SERVICE DATA AND SPECIFICATIONS (SDS) 

[TYPE 3]

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

Compressor

INFOID:0000000010501653

Lubricant

INFOID:0000000010501654

Refrigerant

INFOID:0000000010501655

Engine Idling Speed

INFOID:0000000010501656

Refer to 

ECH-316, "Idle Speed"

 (HRA2DDT engine models) or 

ECM-417, "Idle Speed"

 (MR20DD engine mod-

els).

Belt Tension

INFOID:0000000010501657

Refer to 

EM-114, "Drive Belts"

 (HRA2DDT engine models) or 

EM-248, "Drive Belt"

 (MR20DD 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)

A/C UNIT ASSEMBLY

HA-141

< REMOVAL AND INSTALLATION >

[TYPE 3]

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4.

Remove mounting bolt, and then disconnect high-pressure pipe 3 and low-pressure flexible hose from
expansion valve. (MR20DD engine models)

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.

5.

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.

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-110, "Leak Test"

.

HA-142

< SERVICE DATA AND SPECIFICATIONS (SDS) 

[TYPE 3]

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

Compressor

INFOID:0000000010501653

Lubricant

INFOID:0000000010501654

Refrigerant

INFOID:0000000010501655

Engine Idling Speed

INFOID:0000000010501656

Refer to 

ECH-324, "Idle Speed"

 (HRA2DDT engine models), 

ECM-1030, "Idle Speed"

 (MR20DD engine mod-

els) or 

ECM-619, "Idle Speed"

 (MR16DDT engine models).

Belt Tension

INFOID:0000000010501657

Refer to 

EM-116, "Drive Belts"

 (HRA2DDT engine models) 

EM-395, "Drive Belt"

 (MR20DD engine models) or

EM-259, "Drive Belt"

 (MR16DDT 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)

APPLICATION NOTICE

HA-143

< HOW TO USE THIS MANUAL >

[TYPE 4]

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HOW TO USE THIS MANUAL

APPLICATION NOTICE

Information

INFOID:0000000010709192

Check the vehicle type to use the service information in this section.

Service information

Destination

Type 1

For Europe 

• HRA2DDT engine models
• MR16DDT engine models

Type 2

For Europe 

• K9K engine models
• R9M engine models

Type 3

Except for Europe

• HRA2DDT engine models
• MR20DD engine models
• MR16DDT engine models

Type 4

Except for Europe

• K9K engine models
• R9M engine models

HA-144

< PRECAUTION >

[TYPE 4]

PRECAUTIONS

PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT 
PRE-TENSIONER"

INFOID:0000000010704668

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the “SRS AIR BAG” and
“SEAT BELT” of this Service Manual.

WARNING:

Always observe the following items for preventing accidental activation.
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision that would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see “SRS AIR BAG”.

• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-

vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

Always observe the following items for preventing accidental activation.
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the

ignition ON or engine running, never use air or electric power tools or strike near the sensor(s) with
a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.

• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the

battery, and wait at least 3 minutes before performing any service.

Precaution Necessary for Steering Wheel Rotation After Battery Disconnect

INFOID:0000000010704669

CAUTION:

Comply with the following cautions to prevent any error and malfunction.
• Before removing and installing any control units, first turn the ignition power source and accessory

power source to the OFF, then disconnect both battery cables.

• After finishing work, confirm that all control unit connectors are connected properly, then re-connect

both battery cables.

• Always use CONSULT to perform self-diagnosis as a part of each function inspection after finishing

work. If a DTC is detected, perform trouble diagnosis according to self-diagnosis results.

For vehicle with steering lock unit, if the battery is disconnected or discharged, the steering wheel will lock and
cannot be turned.
If turning the steering wheel is required with the battery disconnected or discharged, follow the operation pro-
cedure below before starting the repair operation.

OPERATION PROCEDURE

1.

Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.

2.

Open driver door.

3.

Turn the ignition switch to the ON position.
(At this time, the steering lock will be released.)

4.

Turn the ignition switch to OFF position with driver door open.

5.

Wait for 3 minutes or longer with driver door open.
NOTE:
• Do not close driver door because the steering wheel locks when driver door is closed.