Nissan Qashqai (2007-2010). Manual - part 842

HEATER & COOLING UNIT ASSEMBLY

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[AUTOMATIC AIR CONDITIONER]

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1.

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

2.

Drain engine coolant from cooling system. Refer to 

CO-9, "Draining"

 (HR), 

CO-30, "Draining"

 (MR), 

CO-

52, "Draining"

 (K9K).

3.

Remove pipe bracket fixing bolt (1), then, disconnect high-pres-
sure pipe (B) and low-pressure pipe (A) from expansion valve as
shown.

CAUTION:

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

4.

Remove clamp (A), then disconnect heater hoses (1) and then
remove clamp (B), to remove heater hose (2).

5.

Remove Instrument Panel. Refer to 

IP-12, "Removal and Installation"

.

6.

Remove BCM.Refer to 

BCS-64, "Removal and Installation"

.

• Remove fixing screws.
• Remove harness connectors.

7.

Disconnect heater connectors (3), then remove heater connec-
tor and bracket.

8.

Disconnect blower motor connector.

9.

Remove heater control cable retainers (2) and cables (1) from
heater and cooling unit.

10. Remove foot duct, RH.

11. Remove power steering C/U. Refer to 

STC-32, "Removal and

Installation"

.

12. Disconnect intake door motor connector and blower motor con-

nector.

13. Remove center air duct.
14. Remove blower intake motor connector and remove harness fixing clip.

15. Remove instrument stay (1).

16. Remove fixing nuts (2).

17. Remove heater draining hose.

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HEATER & COOLING UNIT ASSEMBLY

18. Remove heater and cooling assembly lower fixing bolts, RH

side.

19. Remove heater and cooling assembly upper fixing bolts.

20. Remove high and low pressure pipes. Refer to 

HA-47, "Removal

and Installation"

 (HR/MR), 

HA-98, "Removal and Installation"

(K9K).

21. Remove clips of main harness from steering member.
22. Remove steering member mounting bolts.

• Disconnect harness fixing clips from steering member
NOTE:
Two workers are necessary to remove this part.

23. Remove heater and cooling unit assembly.

INSTALLATION

Installation is basically the reverse order of removal.

CAUTION:

• Replace O-rings of low-pressure pipe 1, 2 and high-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 clicks 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.
NOTE:
• When filling radiator with engine coolant, refer to 

CO-9, "Refilling"

 (HR), 

CO-30, "Refilling"

 (MR), 

CO-52,

"Refilling"

 (K9K).

• Recharge the refrigerant.

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Heater & cooling unit (1) assembly mounting bolt (A)

: 6.9 N·m (0.7 kg·m, 61 in-lb)

MODE DOOR MOTOR

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MODE DOOR MOTOR

Exploded View

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Removal and Installation

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REMOVAL

1.

Remove Instrument Panel. Refer to 

IP-12, "Removal and Installation"

.

1.

Intake connector seal

2.

Blower motor assembly

3.

Heater pipe seal

4.

Air conditioner filter

5.

Air conditioner filter cover

6.

Air mix door motor (left)

7.

Air mix door lever

8.

Electrical heater

9.

Air mix door (slide door)

10.

Intake sensor

11.

Evaporator and expansion valve unit

12. Center case (lower)

13.

Center case (upper)

14.

Defroster door

15. Intake door motor

16.

Intake motor bracket

17.

Intake connector

18. Heater core

19.

Air mix door link bracket

20.

Front ventilator door

21. Side ventilator door

22.

Intake door lever

23.

Intake door box

24. Intake door

25.

Mode door motor

26.

Air mix door link (left)

27. Heater and cooling unit case

28.

Air mix door motor (right)

29.

Aspirator

30. Air mix door link (right)

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MODE DOOR MOTOR

2.

Remove mode door motor fixing screws.

3.

Remove harness connector and then remove mode door motor
(1) from link.

INSTALLATION

installation is basically the reverse order of removal.

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