Nissan Qashqai (2007-2010). Manual — part 112

ENGINE COOLANT

CO-31

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[MR20DE]

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3.

Make sure that each hose clamp has been firmly tightened.

4.

Disconnect heater hose (1) at position (

) in the figure.

• Enhance heater hose as high as possible, keeping heater

hose end above reservoir tank MAX level.

5.

Fill reservoir tank to specified level.
• Pour coolant slowly of less than 2 (1-3/4 lmp qt) a minute

to allow air in system to escape.

• When coolant from heater unit starts to drain, connect

heater hose and continue to fill up to reservoir tank MAX
level.

• Start engine without closing reservoir tank cap.
• Keep engine racing at 1,500 rpm for about 2-3 minutes,

filling reservoir tank up to MAX. Level, if necessary.

• Use Genuine Nissan Engine Coolant or equivalent mixed

with water (distilled or demineralized). Refer to

MA-21,

"Fluids and Lubricants"

.

6.

Install reservoir tank cap.

7.

Warm up engine until opening thermostat. Standard for warming-up time is approximately 10 minutes at
2,000 - 2,500 rpm.
• Make sure thermostat opening condition by touching radiator hose (lower) to see a flow of warm water.

CAUTION:

Watch water temperature gauge so as not to overheat engine.

8.

Stop the engine and cool down to less than approximately 50

°

C (122

°

F).

• Cool down using fan to reduce the time.

9.

Refill reservoir tank to “MAX” level line with engine coolant, if necessary.

10. Repeat steps 6 through 9 two or more times with reservoir tank cap installed until reservoir tank level no

longer drops.

11. Check cooling system for leaks with engine running.
12. Warm up the engine, and check for sound of engine coolant flow while running engine from idle up to

3,000 rpm with heater temperature controller set at several position between “COOL” and “WARM”.
• Sound may be noticeable at heater unit.

13. Repeat step 12 three times.

14. If sound is heard, bleed air from cooling system by repeating step 6 through 9 until reservoir tank level no

longer drops.

15. Check that the reservoir tank cap is tightened.

Flushing

INFOID:0000000000905146

: Vehicle front

PBIC3802E

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

Refer to

:

CO-46, "Periodical Maintenance Specifica-

tion"

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

Refer to

CO-46, "Periodical Maintenance Specification"

.

JPBIA0306ZZ

CO-32

< ON-VEHICLE MAINTENANCE >

[MR20DE]

ENGINE COOLANT

1.

Install reservoir tank if removed.

2.

Disconnect radiator hose (lower) and reservoir tank cap.
If water drain plugs on cylinder block are removed, close and tighten them. Refer to

EM-210,

"Exploded View"

.

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-30, "Draining"

.

8.

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

9.

Check that the reservoir tank cap is tightened.

RADIATOR

CO-33

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RADIATOR

RESERVOIR TANK CAP

RESERVOIR TANK CAP : Inspection

INFOID:0000000000905149

• 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

INFOID:0000000000905151

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

2

, 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-46, "Radiator"

.

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CO-34

< ON-VEHICLE REPAIR >

[MR20DE]

RADIATOR

ON-VEHICLE REPAIR

RADIATOR

Exploded View

INFOID:0000000000905153

M/T models

CVT models

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.

Radiator

10. Mounting rubber (lower)

11.

Clamp

12. Radiator hose (lower)

13. Clip

14. Radiator hose pipe

15. Radiator hose (lower)

16. Radiator hose (upper)

17. Cooling fan assembly

A.

To thermostat housing

B.

To water outlet

C.

To water inlet

Refer to

GI-4, "Components"

for symbols in the figure.

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