Qashqai J11. Engine cooling system - part 2

RADIATOR

CO-17

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REMOVAL AND INSTALLATION

RADIATOR

Exploded View

INFOID:0000000010416347

Refer to 

GI-4, "Components"

 for symbol marks in the figure.

Removal and Installation

INFOID:0000000010416348

REMOVAL

WARNING:

• Never remove reservoir tank cap when engine is hot. Serious burns may occur from high-pressure

engine coolant escaping from radiator. 

• Wrap a thick cloth around the reservoir tank cap. Slowly turn it a quarter of a turn to release built-up

pressure. Then turn it all the way.

1.

Radiator core support

2.

Radiator hose (upper)

3.

Radiator hose (lower)

4.

Cooling fan assembly

5.

Clip

6.

Air guide (LH)

7.

Mounting rubber

8.

Radiator

9.

Air guide (Lower)

10. Air guide (RH)

11.

Intercooler

12. Radiator mounting bracket

13. Bolt

E1BIA1116GB

CO-18

< REMOVAL AND INSTALLATION >

[HRA2DDT]

RADIATOR

NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.

1.

Drain engine coolant from radiator. Refer to 

CO-11, "Draining"

.

CAUTION:

• Perform this step when the engine is cold.
• Never spill engine coolant on drive belt.

2.

Remove front bumper. Refer to 

EXT-19, "Removal and Installation"

.

3.

Remove air inlet tube and air inlet hose. Refer to 

EM-27, "Removal and Installation"

.

4.

Remove charge air cooler. Refer to 

EM-27, "Removal and Installation"

.

5.

Separate condenser from radiator.

6.

Remove radiator hose (upper and lower).

7.

Disconnect harness connectors from cooling fan, and move harness aside.

8.

Remove radiator and cooling fan assembly.

CAUTION:

Be careful not to damage radiator core and condenser  core.

NOTE:
In case of lower pin radiator is damaged, it can be repaired instead of replacing the radiator.

9.

Separate radiator from condenser.

INSTALLATION

Install in the reverse order of removal.

CAUTION:

Do not reuse O-rings.

Radiator

NOTE:
When installing radiator core support (upper), check that both upper and lower mounts of radiator are inserted
in the mounting holes of radiator core support (upper, lower).

CAUTION:

Use genuine mounting bolts for the cooling fan assembly and strictly observe the tightening torque.
(Breakage prevention for radiator)

Radiator hose

NOTE:
Insert the radiator hose (1) all the way to the stopper (2) or by 33 mm (1.30 in) (hose without a stopper).

• For the orientation of the hose clamp pawl, refer to the figure.

Unit:  mm (in)

A.

Radiator side

B.

Engine side

JPBIA4294GB

RADIATOR

CO-19

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*: Refer to the illustrations for the specific position each hose clamp tab.

• The angle (b) created by the hose clamp pawl and the specified

line (A) must be within 

±

30 as shown in the figure.

• To install hose clamps (1), check that the dimension (A) from the

end of the hose clamp on the radiator hose to the hose clamp is
within the reference value.

Inspection

INFOID:0000000010416349

INSPECTION AFTER INSTALLATION

• Check for leakage of engine coolant using the radiator cap tester adapter (commercial service tool) and the

radiator cap tester (commercial service tool). Refer to 

CO-19, "Inspection"

.

• Start and warm up the engine. Check visually that there is no leakage of engine coolant.

Radiator hose

Hose end

Paint mark

Position of hose clamp*

Radiator hose (upper)

Radiator side

Upper

A

Engine side

Upper

B

Radiator hose (lower)

Radiator side

Lower

C

Engine side

Upper

D

E.

View E

f.

45

°

g.

45

°

: Vehicle upper

JPBIA3911ZZ

JPBIA4295ZZ

Dimension “A”

: 3 mm (0.12 in)

JSBIA0241ZZ

CO-20

< REMOVAL AND INSTALLATION >

[HRA2DDT]

COOLING FAN

COOLING FAN

Exploded View

INFOID:0000000010416350

Refer to 

GI-4, "Components"

 for symbol marks in the figure.

Removal and Installation

INFOID:0000000010416351

REMOVAL

1.

Drain engine coolant from radiator. Refer to 

CO-11, "Draining"

.

CAUTION:

• Perform this step engine is cold.
• Never spill engine coolant on drive belt.

2.

Remove front bumper. Refer to 

EXT-19, "Removal and Installation"

.

3.

Remove air inlet tube and air inlet hose. Refer to 

EM-27, "Removal and Installation"

.

4.

Remove charge air cooler. Refer to 

EM-27, "Removal and Installation"

.

5.

Disconnect harness connectors from cooling fan, and move harness to aside.

6.

Remove cooling fan assembly.

CAUTION:

Be careful not to damage or scratch on radiator core when removing.

INSTALLATION

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

CAUTION:

Only use genuine parts for fan shroud mounting bolt and observe the specified torque (to prevent
radiator from being damaged).
NOTE:
Cooling fan is controlled by ECM. For details, Refer to 

ECH-31, "COOLING FAN CONTROL : System Descrip-

tion"

.

1.

Fan shroud

2.

Fan motor

3.

Resistor

4.

Radiator

E1BIA1117GB

COOLING FAN

CO-21

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Disassembly and Assembly

INFOID:0000000010416352

DISASSEMBLY

1.

Remove cooling fan mounting nut, and then remove the cooling fan.

2.

Remove fan motor.

ASSEMBLY

Note the following, and assemble in the reverse order of disassembly.
• Apply genuine high strength thread locking sealant on fan motor shaft.

Inspection

INFOID:0000000010416353

INSPECTION AFTER DISASSEMBLY

Cooling Fan

Inspect cooling fan for crack or unusual bend.
• If anything is found, replace cooling fan.

C O - 2 2

< REMOVAL AND INSTALLATION >

[HRA2DDT]

WATER PUMP

WATER PUMP

Exploded View

INFOID:0000000010416354

Refer to 

GI-4, "Components"

 for symbol marks in the figure.

Removal and Installation

INFOID:0000000010416355

REMOVAL

NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.

1.

Drain engine coolant from radiator. Refer to 

CO-11, "Draining"

.

CAUTION:

• Perform this step when the engine is cold.
• Never spill engine coolant on drive belt.

2.

Steer front wheel to the right.

3.

Remove front fender protector (RH). Refer to 

EXT-32, "Removal and Installation"

.

4.

Loosen mounting bolts of water pump pulley before loosening belt tension of drive belt.

5.

Remove drive belt. Refer to 

EM-21, "Removal and Installation"

.

6.

Remove water pump pulley.

7.

Remove water pump.

1.

Water pump pulley

2.

Water pump

3.

Gasket

4.

Cylinder block

E1BIA1119GB

WATER PUMP

CO-23

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• Loosen mounting bolts in reverse order as shown in the figure.
• Engine coolant will leak from cylinder block, so have a recep-

tacle ready below.

CAUTION:

• Handle water pump vane so that it does not contact any

other parts.

• Water pump cannot be disassembled and should be

replaced as a unit.

INSTALLATION

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

Water pump

• Tighten mounting bolts in numerical order as shown in the figure. 

CAUTION:

Do not re-use gasket.

Water pump pulley

CAUTION:

Never install mounting bolts (A) to oblong holes (B) of water
pump pulley (1). 

Inspection

INFOID:0000000010416356

INSPECTION AFTER REMOVAL

• Check visually that there is no significant dirt or rusting on water

pump body and vane (A).

• Check that there is no looseness in vane shaft, and that it turns

smoothly when rotated by hand.

• Replace water pump, if necessary.

INSPECTION AFTER INSTALLATION

KBIA3393J

KBIA3393J

PBIC3809E

PBIC3808E

CO-24

< REMOVAL AND INSTALLATION >

[HRA2DDT]

WATER PUMP

• Check for leakage of engine coolant using the radiator cap tester adapter (commercial service tool) and the

radiator cap tester (commercial service tool). Refer to 

CO-19, "Inspection"

.

• Start and warm up the engine. Check visually that there is no leakage of engine coolant.

THERMOSTAT

CO-25

< REMOVAL AND INSTALLATION >

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THERMOSTAT

Exploded View

INFOID:0000000010416357

Refer to 

GI-4, "Components"

 for symbol marks in the figure.

Removal and Installation

INFOID:0000000010416358

NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.

REMOVAL

1.

Drain engine coolant from radiator. Refer to 

CO-11, "Draining"

. 

CAUTION:

Perform this step when engine is cold.

2.

Remove intake manifold. Refer to 

EM-25, "Removal and Installation"

3.

Disconnect water hose from water inlet.

4.

Disconnect water inlet connector.

5.

Remove thermostat and water inlet assembly.
• Engine coolant will leak from cylinder block, so have a receptacle ready below.
• NOTE:

Thermostat can not be separated from water inlet.

INSTALLATION

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

Thermostat 

• Thermostat can not be separated from water inlet. 

1.

Water inlet

2.

Water inlet gasket

3.

Cylinder block

E1BIA1118GB

CO-26

< REMOVAL AND INSTALLATION >

[HRA2DDT]

THERMOSTAT

Water inlet

•

CAUTION:

Do not reuse water inlet gasket.

Inspection

INFOID:0000000010416359

INSPECTION AFTER REMOVAL

Thermostat

• Place a thread (A) so that it is caught in the valves of thermostat

(1). Immerse fully in a container (B) filled with water. Heat while
stirring.

• The valve opening temperature is the temperature at which the

valve opens and falls from the thread.

• Continue heating. Check the full open valve lift amount.
• After checking the maximum valve lift amount, lower the water

temperature and check the valve closing temperature. 

• If out of the standard, replace thermostat.

INSPECTION AFTER INSTALLATION

• Check for leakage of engine coolant using the radiator cap tester adapter (commercial service tool) and the

radiator cap tester (commercial service tool). Refer to 

CO-19, "Inspection"

.

• Start and warm up the engine. Check visually that there is no leakage of engine coolant.

Standard: Refer to 

CO-29, "Thermostat"

.

PBIC3314J

WATER OUTLET

CO-27

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WATER OUTLET

Exploded View

INFOID:0000000010416360

Refer to 

GI-4, "Components"

 for symbol marks in the figure.

Removal and Installation

INFOID:0000000010416361

REMOVAL

NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.

1.

Drain engine coolant from radiator. Refer to 

CO-11, "Draining"

.

CAUTION:

• Perform this step when engine is cold.

2.

Remove battery. Refer to 

PG-155, "Removal and Installation"

3.

Disconnect vacuum hose from water outlet valve.

4.

Disconnect harness connector from engine coolant temperature sensor.

5.

Disconnect water hose from water outlet.

1.

Water outlet

2.

Gasket

3.

Cylinder head

E1BIA1120GB

CO-28

< REMOVAL AND INSTALLATION >

[HRA2DDT]

WATER OUTLET

6.

Remove water outlet. 
• Loosen mounting bolts in reverse order as shown in the figure.
• Engine coolant will leak from cylinder block, so have a recep-

tacle ready below.

7.

Remove engine coolant temperature sensor from water outlet, if
necessary.

INSTALLATION

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

CAUTION:

Do not re-use gasket
• Tighten mounting bolts in numerical order as shown in the figure. 

E1BIA1142ZZ

E1BIA1142ZZ

SERVICE DATA AND SPECIFICATIONS (SDS)

CO-29

< SERVICE DATA AND SPECIFICATIONS (SDS) 

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SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

Periodical Maintenance Specification

INFOID:0000000010416362

ENGINE COOLANT CAPACITY (APPROXIMATE)

Unit: 

 (Imp qt)

Radiator

INFOID:0000000010416363

Unit: kPa (bar, kg/cm

2

, psi)

Thermostat

INFOID:0000000010416364

Standard

Engine coolant capacity (With reservoir tank at “MAX” level)

6.5 (5-3/4)

Reservoir tank engine coolant capacity (At “MAX” level)

0.8 (3/4)

Reservoir tank cap relief pressure

140 (1.4, 1.4, 20)

Leakage testing pressure

140 (1.4, 1.4, 20)

Valve opening temperature

77 - 80

°

C (170 - 176

°

F)

Valve full opening temperature

90

°

C (194

°

F)

CO-30

< PRECAUTION >

[MR20DD]

PRECAUTIONS

PRECAUTION

PRECAUTIONS

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

INFOID:0000000010665065

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.

Precautions for Removing Battery Terminal

INFOID:0000000010665066

•  When removing the 12V battery terminal, turn OFF the ignition

switch and wait at least 30 seconds.
NOTE:
ECU may be active for several tens of seconds after the ignition
switch is turned OFF. If the battery terminal is removed before ECU
stops, then a DTC detection error or ECU data corruption may
occur.

•  For vehicles with the 2-batteries, be sure to connect the main bat-

tery and the sub battery before turning ON the ignition switch.
NOTE:
If the ignition switch is turned ON with any one of the terminals of
main battery and sub battery disconnected, then DTC may be
detected.

•  After installing the 12V battery, always check "Self Diagnosis Result" of all ECUs and erase DTC.

NOTE:
The removal of 12V battery may cause a DTC detection error.

SEF289H

PREPARATION

CO-31

< PREPARATION >

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PREPARATION

PREPARATION

Commercial Service Tools

INFOID:0000000010665067

Lubricant or/and Sealant

INFOID:0000000010665068

Tool name

Description

Radiator cap tester

Checking radiator and radiator cap

Radiator cap tester adapter

Adapting radiator cap tester to radiator cap 
and water outlet (front) filler neck
a: 28 (1.10) dia.
b: 31.4 (1.236) dia.
c: 41.3 (1.626) dia.
Unit: mm (in)

PBIC1982E

S-NT564

Name

Description

Note

Three bond 1303

Cooling fan

Fan moter shaft

CO-32

< SYSTEM DESCRIPTION >

[MR20DD]

DESCRIPTION

SYSTEM DESCRIPTION

DESCRIPTION

Engine Cooling System

INFOID:0000000010665069

CVT models

JPBIA6908ZZ

Electric control throttle actuator

Water pump

Thermostat

Water inlet

Oil cooler

Water control valve

Water outlet

From radiator

To CVT oil warmer

To radiator

From CVT oil warmer

From heater

To heater