Nissan Qashqai (2007-2010). Manual — part 115

THERMOSTAT

CO-43

< ON-VEHICLE REPAIR >

[MR20DE]

C

D

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• Fully immerse the heater thermostat (1) in a container (A) filled

with water. Continue heating the water while stirring.

• Continue heating the heater thermostat for 5 minutes or more after

bringing the water to a boil.

• Quickly take the heater thermostat out of the hot water, measure

the heater thermostat within 10 seconds.

• Place dial indicator (A) on the pellet (B) and measure the elonga-

tion from the initial state.

• If out of the standard, replace heater 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-30, "Inspection"

.

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

JPBIA0318ZZ

Standard

: Refer to

CO-46, "Heater Thermostat (CVT models)"

.

JPBIA0319ZZ

CO-44

< ON-VEHICLE REPAIR >

[MR20DE]

WATER OUTLET

WATER OUTLET

Exploded View

INFOID:0000000000905169

Removal and Installation

INFOID:0000000000905170

REMOVAL

1.

Drain engine coolant from radiator. Refer to

CO-30, "Draining"

.

CAUTION:

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

2.

Disconnect radiator hose (upper). Refer to

CO-34, "Exploded View"

.

3.

Disconnect harness connector from engine coolant temperature sensor.

4.

Remove reservoir tank hose (M/T models). Refer to

CO-34, "Exploded View"

.

5.

Remove water hoses and heater hoses.

6.

Remove water outlet.

1.

Heater hose

2.

Water outlet

3.

Engine coolant temperature sensor

4.

Washer

5.

Water hose

6.

Water hose

7.

Gasket

8.

Water control valve

9.

Rubber ring

10. Water hose

11.

Reservoir tank hose (M/T models)

12.

Radiator hose (upper)

13. Water hose (CVT models)

14.

Heater hose

A.

To heater

B.

To electric throttle control actuator

C.

To reservoir tank

D.

To oil cooler

E.

To radiator

F.

To CVT fluid cooler

: Engine front

Refer to

GI-4, "Components"

for symbols in the figure.

JPBIA0317GB

WATER OUTLET

CO-45

< ON-VEHICLE REPAIR >

[MR20DE]

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7.

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

INSTALLATION

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

Water Control Valve

• Install water control valve with making rubber ring (1) groove fit to

water control valve flange (A) with the whole circumference.

• Install water control valve (2) with the arrow (A) facing up and the

frame center part (B) facing upwards.

Inspection

INFOID:0000000000905639

INSPECTION AFTER REMOVAL

WARNING:

Use a protector to prevent a burn during the work.

Water Control Valve

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

valve (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 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.

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

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-30, "Inspection"

.

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

PBIC4682E

1

: Water outlet

PBIC3319J

Standard:

Refer to

CO-46, "Water Control Valve"

.

PBIC3314J

CO-46

< SERVICE DATA AND SPECIFICATIONS (SDS)

[MR20DE]

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

Periodical Maintenance Specification

INFOID:0000000000905179

ENGINE COOLANT CAPACITY (APPROXIMATE)

Unit:

(Imp qt)

Radiator

INFOID:0000000000905180

RESERVOIR TANK CAP

Unit: kPa (bar, kg/cm

2

, psi)

RADIATOR

Unit: kPa (bar, kg/cm

2

, psi)

Thermostat

INFOID:0000000000905181

Standard

Heater Thermostat (CVT models)

INFOID:0000000000905646

Standard

Reference value

Water Control Valve

INFOID:0000000000905645

Standard

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

M/T models

7.6 (6-5/8)

CVT models

8.9 (7-7/8)

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

0.78 (5/8)

Reservoir tank cap relief pressure

Standard

140 (1.4, 1.43, 20.3)

Limit

150 (1.5, 1.53, 21.75)

Leakage testing pressure

150 (1.5, 1.53, 21.75)

Valve opening temperature

80.5 - 83.5

°

C (177 - 182

°

F)

Maximum valve lift

8.0 mm/95

°

C (0.315 in/203

°

F)

Valve closing temperature

77

°

C (171

°

F)

Valve lift

More than 4.5 mm (0.177 in)

Valve opening temperature

82

°

C (180

°

F)

Maximum valve lift

5.0 mm/95

°

C (0.197 in/203

°

F)

Valve opening temperature

93.5 - 96.5

°

C (200 - 206

°

F)

Maximum valve lift

8.0 mm/108

°

C (0.315 in/226

°

F)

Valve closing temperature

90

°

C (194

°

F)