Qashqai J11. Engine cooling system - part 7

 

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Qashqai J11. Engine cooling system - part 7

 

 

CO-98

< REMOVAL AND INSTALLATION >

[R9M]

COOLING FAN

COOLING FAN

Exploded View

INFOID:0000000010438949

Refer to 

GI-4, "Components"

 for symbol marks in the figure.

Removal and Installation

INFOID:0000000010438950

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 

EC9-34, "COOLING FAN CONTROL : System Descrip-

tion"

.

1.

Fan shroud

2.

Fan motor

3.

Resistor

4.

Radiator

E1BIA1117GB

COOLING FAN

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Disassembly and Assembly

INFOID:0000000010438951

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:0000000010438952

INSPECTION AFTER DISASSEMBLY

Cooling Fan

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

CO-100

< REMOVAL AND INSTALLATION >

[R9M]

WATER PUMP

WATER PUMP

Exploded View

INFOID:0000000010416542

Refer to 

GI-4, "Components"

 for symbols in the figure.

Removal and Installation

INFOID:0000000010416543

REMOVAL

1.

Remove engine. Refer to 

EM-431, "Removal and Installation"

.

2.

Remove water pump pulley.

3.

Remove water pump.
• Loosen mounting bolts in reverse order as shown in the figure.

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

1.

Water pump bolt

2.

Water pump

3.

O-ring

4.

Cylinder block

E1BIA0585GB

JPBIA0746ZZ

WATER PUMP

CO-101

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• Tighten mounting bolts in numerical order as shown in the figure.
• When inserting water pump end into cylinder block, apply a neutral

detergent to O-ring. Then insert it immediately.

Inspection

INFOID:0000000010416544

INSPECTION AFTER DISASSEMBLY

• Visually check if 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.

JPBIA0746ZZ

JPBIA0747ZZ

CO-102

< REMOVAL AND INSTALLATION >

[R9M]

THERMO PLUNGER UNIT

THERMO PLUNGER UNIT

Exploded View

INFOID:0000000010438953

Refer to 

GI-4, "Components"

 for symbol marks in the figure.

Removal and Installation

INFOID:0000000010438954

REMOVAL

CAUTION:

Make sure that the engine is cool down before operating, in order to avoid hot coolant outflow, as the
electric pump is turned on even if the engine is off. On the other hand the pump is turned off when the
engine is on. In this case as the electric pump is working, the thermostat will have to stay open due to
high temperatures.
1.

Remove the battery negative cable.

2.

Lift the vehicle. 

3.

Remove front fender protector (LH). Refer to 

EXT-31, "Exploded View"

4.

Drain the engine coolant. 

CO-89, "Draining"

5.

Remove the ground cable bolt.

6.

Disconnect thermo plunger unit connector.

7.

Remove the thermo plunger connection caps.

8.

Remove the thermo plunger connection nuts using the appropriate tool.

9.

Remove the water hose from thermo plunger unit.

10. Remove the thermo plunger unit fixing bolts.  

11. Remove the thermo plunger unit.

1.

Water hose

2.

Clamp 

3.

Thermo plunger control unit

4.

Earth lead

5.

Bracket stay

6.

Water hose 

7.

Water hose clip

E1BIA1144GB

THERMO PLUNGER UNIT

CO-103

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INSTALLATION

NOTE:
• Thermo plunger caps must be correctly installed after removal.
• The hoses must be fully pushed onto pipe before tightening the clamp.
• Clamp must be fixed 5mm MIN from end of hose.

Installation is basically the reverse order of the removal.

 Thermo plunger bracket stay bolt: 10 N.m (1 kg-m, 7 ft-lb)

CO-104

< REMOVAL AND INSTALLATION >

[R9M]

WATER OUTLET

WATER OUTLET

Exploded View

INFOID:0000000010416539

Refer to 

GI-4, "Components"

 for symbols in the figure.

Removal and Installation

INFOID:0000000010416540

REMOVAL

1.

Drain engine coolant from radiator. Refer to 

CO-89, "Draining"

.

CAUTION:

Perform this step when engine is cold.

2.

Remove battery. Refer to 

PG-155, "Removal and Installation"

.

3.

Remove intake manifold. Refer to 

EM-387, "Removal and Installation"

4.

Disconnect radiator hose (lower). Refer to 

CO-95, "Exploded View"

.

5.

Disconnect water hoses from water outlet.

6.

Remove water outlet and thermostat assembly.

7.

CAUTION:

The thermostat cannot be separated from the water outlet.

INSTALLATION

Install in the reverse order of removal.

1.

Water hose

2.

Water pump

3.

Cylinder block

4.

O-ring

5.

Water pump inlet pipe

6.

Water pump inlet pipe intermediate

7.

Water outlet

8.

Water pipe between water inlet 
housing and water chamber

9.

O-ring

10. intake manifold

11.

Water hose between intake manifold 
and water chamber

12.

Water valve

A.

To Radiator

B.

To reservoir tank

E1BIA0656GB

WATER OUTLET

CO-105

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Inspection

INFOID:0000000010416541

INSPECTION AFTER REMOVAL

Water outlet and thermostat assembly

1.

Check valve seating condition at ordinary room temperatures. It should seat tightly.

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-89, "Inspection"

.

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

Standard:

Refer to 

CO-106, "Thermostat"

.

CO-106

< SERVICE DATA AND SPECIFICATIONS (SDS) 

[R9M]

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

Periodical Maintenance Specification

INFOID:0000000010416547

ENGINE COOLANT CAPACITY (APPROXIMATE)

Unit: 

 (Imp qt)

Radiator

INFOID:0000000010416548

Unit: kPa (bar, kg/cm

2

, psi)

Thermostat 

INFOID:0000000010416549

Standard

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

M/T models

7.3 (6-3/8)

CVT models

7.9 (7)

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

80 - 92

°

C (176 - 197

°

F)

 

 

 

 

 

 

 

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