Nissan Qashqai (2007-2010). Manual — part 107

ENGINE COOLANT

CO-11

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If water drain plugs on cylinder block are removed, close and tighten them. Refer to

EM-83,

"Exploded View"

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3.

Fill reservoir tank with water and reinstall reservoir tank cap.

4.

Run the engine and warm it up to normal operating temperature.

5.

Rev the engine two or three times under no-load.

6.

Stop the engine and wait until it cools down.

7.

Drain water from the system. Refer to

CO-9, "Draining"

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8.

Repeat steps 1 through 7 until clear water begins to drain from radiator.

9.

Check that the reservoir tank cap is tightened.

CO-12

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RADIATOR

RADIATOR

RESERVOIR TANK CAP

RESERVOIR TANK CAP : Inspection

INFOID:0000000000903738

• Fit the adapter to the reservoir tank cap tester [SST: — (M.S. 554-

07)] (A) as shown.

• When connecting the reservoir tank cap to the reservoir tank cap

tester, apply water or LLC to the reservoir tank cap seal part.

• Check reservoir tank cap relief pressure.

• Replace the reservoir tank cap if the engine coolant passes

through it, or if any fur signs is detected.

CAUTION:

When installing reservoir tank cap, thoroughly wipe out the res-
ervoir tank filler neck to remove any waxy residue or foreign
material.

RADIATOR

RADIATOR : Inspection

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Check radiator for mud or clogging. If necessary, clean radiator as follows.

CAUTION:

• Be careful not to bend or damage radiator fins.
• When radiator is cleaned without removal, remove all surrounding parts such as radiator cooling fan

assembly and horns. Then tape harness and connectors to prevent water from entering.

1.

Apply water by hose to the back side of the radiator core vertically downward.

2.

Apply water again to all radiator core surfaces once per minute.

3.

Stop washing if any stains no longer flow out from radiator.

4.

Blow air into the back side of radiator core vertically downward.
• Use compressed air lower than 490 kPa (5 kg/cm

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, 71 psi) and keep distance more than 30 cm (11.8 in).

5.

Blow air again into all the radiator core surfaces once per minute until no water sprays out.

Standard and limit : Refer to

CO-23, "Radiator"

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E1BIA0057ZZ

RADIATOR

CO-13

< ON-VEHICLE REPAIR >

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ON-VEHICLE REPAIR

RADIATOR

Exploded View

INFOID:0000000000903740

Removal and Installation

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REMOVAL

WARNING:

• Never remove reservoir tank cap when engine is hot. Serious burns could occur from high-pressure

engine coolant escaping from reservoir tank.

• Wrap a thick cloth around reservoir tank cap. Slowly turn it a quarter of a turn to release built-up

pressure. Then turn it all the way.

1.

Drain engine coolant from radiator. Refer to

CO-9, "Draining"

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CAUTION:

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

1.

Reservoir tank cap

2.

Reservoir tank

3.

Clamp

4.

Reservoir tank hose

5.

Reservoir tank hose

6.

Clamp

7.

Bracket

8.

Mounting rubber (upper)

9.

Bracket

10. Radiator

11.

Mounting rubber (lower)

12. Clamp

13. Radiator hose (lower)

14. Clip

15. Radiator hose pipe

16. Radiator hose (lower)

17. Radiator hose (upper)

18. Cooling fan assembly

A.

To cylinder block

B.

To water outlet

C.

To water inlet

Refer to

GI-4, "Components"

for symbols in the figure.

JPBIA0307GB

CO-14

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RADIATOR

2.

Remove air duct (inlet). Refer to

EM-27, "Exploded View"

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3.

Remove reservoir tank hose at radiator hose (upper) side.

4.

Disconnect connector from resistor and fan motor, and move harness to aside.

5.

Remove cooling fan assembly. Refer to

CO-15, "Exploded View"

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CAUTION:

Be careful not to damage radiator core.

6.

Remove radiator hose (upper and lower).

7.

Remove liquid tank bracket mounting bolts. Refer to

HA-36, "Exploded View"

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8.

Remove mounting bracket (upper).

9.

Lift up the A/C condenser to disengage the radiator, and then remove the radiator.

CAUTION:

Be careful not to damage or scratch radiator and A/C condenser core.

INSTALLATION

Installation is the reverse order of removal.

Inspection

INFOID:0000000000903742

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"

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