Nissan Qashqai (2007-2010). Manual — part 869

HA-46

< ON-VEHICLE REPAIR >

[AUTOMATIC AIR CONDITIONER (HR/MR)]

HIGH-PRESSURE PIPE 1 (ENGINE COMPARTMENT)

4.

Remove high pressure pipe 1 (1) from clip (A).

Remove high-pressure pipe 1 mounting bolt (A) from liquid tank,
then remove high-pressure pipe 1 (1).

CAUTION:

Cap or wrap the joint of the high pressure pipe 1, and liquid
tank, with suitable material such as vinyl tape to avoid the
entry of air.

INSTALLATION

Installation is basically the reverse order of removal.

CAUTION:

• Replace O-rings of high-pressure pipe 1 with new ones, and then apply compressor oil to it when

installing it.

• Female-side piping connection is thin and easy to deform. Slowly insert the male-side piping

straight in axial direction.

• Insert piping securely until a click is heard.
• After piping connection is completed, pull male-side piping by hand to make sure that connection

does not come loose.

• When recharging refrigerant, check for leaks.

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LOW-PRESSURE PIPE 1 AND HIGH-PRESSURE PIPE 2

HA-47

< ON-VEHICLE REPAIR >

[AUTOMATIC AIR CONDITIONER (HR/MR)]

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LOW-PRESSURE PIPE 1 AND HIGH-PRESSURE PIPE 2

Exploded View

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Refer to

HA-18, "Refrigerant Connection"

.

Removal and Installation

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REMOVAL

1.

Set the temperature at 18

°

C (60

°

F), and then disconnect the battery cable from the negative terminal.

2.

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

3.

Remove high-pressure pipe 1 and low pressure pipe 2 from expansion valve. Refer to

HA-45, "Removal

and Installation"

and

HA-41, "Removal and Installation"

.

CAUTION:

Cap or wrap the joint of the, high-pressure pipe 1, low-pressure pipe 2, and the expansion valve
with suitable material such as vinyl tape to avoid the entry of air.

4.

Remove heater cooling fixing clamp, and heater hoses. Refer to

CO-13, "Exploded View"

(HR engine

models) or

CO-34, "Exploded View"

(MR engine models).

5.

Remove instrument panel.Refer to

IP-12, "Removal and Installation"

.

6.

Remove foot duct (RH / LH). Refer to

VTL-48, "FOOT DUCTS : Removal and Installation"

.

7.

Remove steering column. Refer to

ST-10, "Removal and Installation"

.

8.

Disconnect Heater and cooling unit harness connectors from steering member main harness.

1.

Heater & blower unit assembly

2.

Heater & cooling unit assembly

3.

Evaporator

4.

O-ring

5.

Low pressure pipe 1 and high pres-
sure pipe 2 assembly

6.

Expansion valve

7.

Heater sealing

8.

Low pressure flexible hose and pipe
2

9.

Low pressure pipe 2 fixing clamp as-
sembly

10. High pressure flexible hose

11.

Compressor

12. Low pressure flexible hose

13. Low & high pipe bracket support

14. High pressure pipe 1

15. Condenser assembly

16. Liquid tank fixing bracket

17. Refrigerant pressure sensor

18. Liquid tank

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HA-48

< ON-VEHICLE REPAIR >

[AUTOMATIC AIR CONDITIONER (HR/MR)]

LOW-PRESSURE PIPE 1 AND HIGH-PRESSURE PIPE 2

9.

Remove steering member. Refer to

ST-15, "Removal and Installation"

.

10. Remove heater and cooling assembly. Refer to

VTL-32, "Removal and Installation"

.

11. Remove mounting screws, and then remove evaporator cover

(1).

12. Using a thin cutter, cut the evaporator insulator (B), and then

remove fixing bolt (A), and low-pressure pipe 1 and high-pres-
sure pipe 2 assembly.

CAUTION:

Cap or wrap the joint of expansion valve, high-pressure
pipe 2 and low-pressure pipe 1 with suitable material such
as vinyl tape to avoid the entry of air.

INSTALLATION

Installation is basically the reverse order of removal.

CAUTION:

• Replace O-rings of high-pressure pipe 1, 2 and low-pressure pipe 1, 2 with new ones, and then apply

compressor oil to it when installing it.

• Female-side piping connection is thin and easy to deform. Slowly insert the male-side piping

straight in axial direction.

• Insert piping securely until a click is heard.
• After piping connection is completed, pull male-side piping by hand to make sure that connection

does not come loose.

• When recharging refrigerant, check for leaks.

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CONDENSER

HA-49

< ON-VEHICLE REPAIR >

[AUTOMATIC AIR CONDITIONER (HR/MR)]

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CONDENSER

Exploded View

INFOID:0000000001093794

Removal and Installation

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REMOVAL

1.

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

2.

Remove engine cover ornament. Refer to

EM-146, "Exploded View"

(MR engine models).

3.

Remove front grille. Refer to

EXT-17, "Removal and Installation"

.

4.

Remove radiator hose, and drain coolant. Refer to

CO-9, "Draining"

(HR engine models) or

CO-30,

"Draining"

(MR engine models).

5.

Remove upper radiator fixing bracket. Refer to

CO-13, "Exploded View"

(HR engine models) or

CO-34,

"Exploded View"

(MR engine models).

6.

Remove radiator air-guide duct (RH). Refer to Refer to

CO-13, "Exploded View"

(HR engine models) or

CO-34, "Exploded View"

(MR engine models).

7.

Remove high-pressure pipe 1 (1) fixing bolt (A) and high pres-
sure pipe from liquid tank. Refer to

HA-47, "Removal and Instal-

lation"

.

8.

Remove high-pressure flexible pipe 1 from condenser. Refer to

HA-43, "Removal and Installation"

.

CAUTION:

Cap or wrap the joint of low and high-pressure pipe 1 and
condenser with suitable material such as vinyl tape to avoid
the entry of air.

9.

Remove harness connector from refrigerant pressure sensor.

10. Remove liquid tank pipes and liquid tank from condenser and

radiator. Refer to

HA-51, "Removal and Installation"

, Refer to

CO-13, "Removal and Installation"

(HR engine models) or

CO-35, "Removal and Installation"

(MR engine

models).

CAUTION:

Cap or wrap the joint of liquid tank pipes and condenser with suitable material such as vinyl tape
to avoid the entry of air.

11. Remove radiator fixing brackets. Refer to

CO-13, "Exploded View"

(HR engine models) or

CO-34,

"Exploded View"

(MR engine models).

1.

Refrigerant pressure sensor

2.

O-ring

3.

Liquid tank bracket

4.

Liquid tank

5.

Condenser

6.

Liquid tank fixing screw

7.

Liquid tank pipe fixing bolt

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