Nissan Tiida C11. Manual - part 126

CO-22

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THERMOSTAT

THERMOSTAT

Exploded View

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Removal and Installation

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REMOVAL

1.

Drain engine coolant from radiator. Refer to 

CO-11, "Changing Engine Coolant"

. 

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-16, "Component"

.

3.

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

INSTALLATION

Installation is 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

PBIC3810E

PBIC3811E

THERMOSTAT

CO-23

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• Install thermostat (2) into the cylinder block (1) with jiggle valve (A)

facing upwards. 

Water Inlet.

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

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 suitable tools. Refer to 

CO-11, "Inspection"

.

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

PBIC3812E

PBIC3755E

Standard

: Refer to 

CO-27, "Thermostat"

.

PBIC3314J

CO-24

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WATER OUTLET

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-11, "Changing Engine Coolant"

.

CAUTION:

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

2.

Disconnect radiator hose (upper). Refer to 

CO-16, "Component"

.

3.

Disconnect harness connector from engine coolant temperature sensor.

4.

Remove electronic throttle control actuator 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

Installation is the reverse order of removal.

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 electronic throttle control actua-
tor

B.

To heater core

C.

To radiator

: Engine front

PBIC3816E

WATER OUTLET

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Inspection

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INSPECTION AFTER INSTALLATION

• Check that the reservoir tank cap is tightened.
• Check for leaks of engine coolant using suitable tool. Refer to 

CO-11, "Inspection"

.

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