Nissan Qashqai (2007-2010). Manual — part 109

THERMOSTAT

CO-19

< ON-VEHICLE REPAIR >

[HR16DE]

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THERMOSTAT

Exploded View

INFOID:0000000000903749

Removal and Installation

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REMOVAL

1.

Drain engine coolant from radiator. Refer to

CO-9, "Draining"

.

CAUTION:

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

2.

Add paint mark, then disconnect radiator hose (lower) from water inlet. Refer to

CO-13, "Exploded View"

.

3.

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

INSTALLATION

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

Thermostat

• Install thermostat with making rubber ring (1) groove fit to thermo-

stat flange (A) with the whole circumference.

1.

Radiator hose (lower)

2.

Water inlet

3.

Rubber ring

4.

Thermostat

A.

To radiator

Refer to

GI-4, "Components"

for symbols in the figure.

PBIC3810E

PBIC3811E

CO-20

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[HR16DE]

THERMOSTAT

• Install thermostat (2) with jiggle valve (A) facing upwards.

Water Inlet

After installation, fix water inlet clip (A) on the oil level gauge guide
(1) as shown in the figure.

Inspection

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INSPECTION AFTER REMOVAL

WARNING:

Use a protector to prevent a burn during the work.

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 that the reservoir tank cap is tightened.
• Check for leaks of engine coolant using the adapter and the reservoir tank cap tester [SST: — (M.S. 554-07).

Refer to

CO-9, "Inspection"

.

• Start and warm up the engine. Visually make sure that there is no leaks of engine coolant.

1 : Cylinder block

PBIC3812E

B : Positioning

PBIC3755E

Standard: Refer to

CO-23, "Thermostat"

.

PBIC3314J

WATER OUTLET

CO-21

< ON-VEHICLE REPAIR >

[HR16DE]

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WATER OUTLET

Exploded View

INFOID:0000000000903752

Removal and Installation

INFOID:0000000000903753

REMOVAL

1.

Drain engine coolant from radiator. Refer to

CO-9, "Draining"

.

CAUTION:

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

2.

Disconnect radiator hose (upper). Refer to

CO-13, "Exploded View"

.

3.

Disconnect harness connector from engine coolant temperature sensor.

4.

Remove water hoses (Northern Europe models).

5.

Remove heater hoses.

6.

Remove water outlet.

7.

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

INSTALLATION

1.

Engine coolant temperature sensor

2.

Washer

3.

Gasket

4.

Radiator hose (upper)

5.

Water outlet

6.

Heater hose

7.

Heater hose

8.

Water hose (Northern Europe models) 9.

Water hose (Northern Europe models)

A.

To electric throttle control actuator

B.

To heater core

C.

To radiator

: Engine front

Refer to

GI-4, "Components"

for symbols in the figure.

PBIC3816E

CO-22

< ON-VEHICLE REPAIR >

[HR16DE]

WATER OUTLET

Installation is the reverse order of removal.

Inspection

INFOID:0000000000903754

INSPECTION AFTER INSTALLATION

• Check that the reservoir tank cap is tightened.
• Check for leaks of engine coolant using the adapter and the reservoir tank cap tester [SST: — (M.S. 554-07).

Refer to

CO-9, "Inspection"

.

• Start and warm up the engine. Visually make sure that there is no leaks of engine coolant.