Nissan Qashqai J11. Manual - part 162

CO-52

< REMOVAL AND INSTALLATION >

[MR20DD]

THERMOSTAT

INSTALLATION

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

Thermostat 

• Install thermostat with making rubber ring 

 groove fit to thermo-

stat flange 

 with the whole circumference. 

• Install thermostat 

 with jiggle valve 

 facing upwards. 

Inspection

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INSPECTION AFTER REMOVAL

Thermostat

• Place a thread 

 so that it is caught in the valves of thermostat 

.

Immerse fully in a container 

 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-38, "Inspection"

.

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

JPBIA5191ZZ

: Thermostat housing

PBIC3548J

Standard: Refer to 

CO-56, "Thermostat"

.

PBIC3314J

WATER OUTLET

CO-53

< REMOVAL AND INSTALLATION >

[MR20DD]

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WATER OUTLET

Exploded View

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Removal and Installation

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REMOVAL

1.

Drain engine coolant from radiator. Refer to 

CO-38, "Draining"

.

CAUTION:

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

2.

Remove air duct. Refer to 

EM-147, "Exploded View"

.

3.

Remove battery. Refer to 

PG-155, "Removal and Installation"

.

4.

Remove battery tray. Refer to 

PG-154, "Exploded View"

.

5.

Disconnect radiator hose (upper) form water outlet.

6.

Disconnect harness connector from engine coolant temperature sensor.

Water control valve

Rubber ring

Water outlet

Engine coolant temperature sensor

Clamp

Water hose

Water hose

To radiator

To CVT oil warmer (CVT models)

To heater

To heater

: Engine front

: Always replace after every disassembly.

: N·m (kg-m, ft-lb)

JPBIA6912GB

CO-54

< REMOVAL AND INSTALLATION >

[MR20DD]

WATER OUTLET

7.

Remove heater hoses 

 and water hose 

 (CVT models).

8.

Remove water outlet.

INSTALLATION

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

Water Control Valve

• Install water control valve with making rubber ring 

 groove fit to

water control valve flange 

 with the whole circumference.

• Install water control valve 

 with the arrow 

 facing up and the

frame center part 

 facing upwards.

Inspection

INFOID:0000000010665093

INSPECTION AFTER REMOVAL

Water Control Valve

• Place a thread 

 so that it is caught in the valves of water control

valve 

. Immerse fully in a container 

 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 continuous valve lifting toward maxi-

mum valve lift.
NOTE:
The maximum valve lift amount standard temperature for water
control valve is the reference value.

• After checking the maximum valve lift amount, lower the water

temperature and check the valve closing temperature. 

: Water outlet

JPBIA6844ZZ

JPBIA5193ZZ

: Water outlet

JPBIA5194ZZ

PBIC3314J

WATER OUTLET

CO-55

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[MR20DD]

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• If out of the standard, replace water control valve.

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-38, "Inspection"

.

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

Standard:

Refer to 

CO-56, "Water Control Valve"

.