Nissan X-Trail 32. Manual — part 297
CO-14
< PERIODIC MAINTENANCE >
[MR20DD]
ENGINE COOLANT
• Move reservoir tank
, and then remove it numerical order as
shown in the figure.
4.
Check drained engine coolant for contaminants such as rust, corrosion or discoloration. If contaminated,
flush the engine cooling system. Refer to
.
Refilling
INFOID:0000000010782931
CAUTION:
• Do not put additive such as waterleak preventive, since it may cause cooling waterway clogging.
• When refilling use Genuine NISSAN Long Life Antifreeze/Coolant (blue) or equivalent in its quality
mixed with water (distilled or demineralized). Refer to
MA-23, "Fluids and Lubricants"
1.
Install reservoir tank if removed and radiator drain plug.
CAUTION:
Be sure to clean drain plug and install with new O-ring.
• If water drain plugs on cylinder block are removed, close and tighten them. Refer to
.
2.
Check that each hose clamp has been firmly tightened.
3.
Fill radiator to specified level.
CAUTION:
Never adhere the engine coolant to electronic equipments
(alternator etc.).
• Pour coolant slowly of less than 2 (1-3/4 Imp qt) a
minute to allow air in system to escape.
4.
Refill reservoir tank to “MAX” level line with engine coolant.
5.
Install radiator cap.
6.
Warm up engine until opening thermostat. Standard for warming-up time is approximately 10 minutes at
3,000 rpm.
• Check 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.
: Nut
: Pawl
JPBIA6839ZZ
Radiator drain plug
: Refer to
Engine coolant capacity
(With reservoir tank at “MAX” level)
Refer to
CO-31, "Periodical Maintenance Specification"
JPBIA0412ZZ
: MAX
: MIN
Reservoir tank engine coolant capacity
(At “MAX” level)
Refer to
CO-31, "Periodical Maintenance Specification"
JPBIA0102ZZ
ENGINE COOLANT
CO-15
< PERIODIC MAINTENANCE >
[MR20DD]
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7.
Stop the engine and cool down to less than approximately 50
°
C (122
°
F).
• Cool down using fan to reduce the time.
• If necessary, refill radiator up to filler neck with engine coolant.
CAUTION:
Never adhere the engine coolant to electronic equipments (alternator etc.).
8.
Refill reservoir tank to “MAX” level line with engine coolant.
9.
Repeat steps 5 through 8 two or more times with radiator cap installed until engine coolant level no longer
drops.
10. Check cooling system for leakage with engine running.
11. 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.
12. Repeat step 11 three times.
13. If sound is heard, bleed air from cooling system by repeating step 5 through 8 until reservoir tank level no
longer drops.
Flushing
INFOID:0000000010782932
1.
Install reservoir tank if removed and radiator drain plug.
CAUTION:
Be sure to clean drain plug and install with new O-ring.
• If water drain plugs on cylinder block are removed, close and tighten them. Refer to
2.
Fill radiator and reservoir tank with water and reinstall radiator cap.
3.
Run the engine and warm it up to normal operating temperature.
4.
Rev the engine two or three times under no-load.
5.
Stop the engine and wait until it cools down.
6.
Drain water from the system. Refer to
7.
Repeat steps 1 through 6 until clear water begins to drain from radiator.
Radiator drain plug
: Refer to
CO-16
< PERIODIC MAINTENANCE >
[MR20DD]
RADIATOR
RADIATOR
RADIATOR CAP
RADIATOR CAP : Inspection
INFOID:0000000010782933
• Check valve seat
of radiator cap.
- Check that valve seat is swollen to the extent that the edge of the
plunger
cannot be seen when watching it vertically from the top.
- Check that valve seat has no soil and damage.
- Check that there is no dirt or damage on the valve seat of radiator
cap negative-pressure valve.
- Check that there are no unusualness in the opening and closing
conditions of negative-pressure valve.
• Check radiator cap relief pressure.
- When connecting radiator cap to the radiator cap tester (commer-
cial service tool) (A) and the radiator cap tester adapter (commer-
cial service tool) (B), apply engine coolant to the cap seal surface.
• Replace radiator cap if there is an unusualness related to the above three.
CAUTION:
When installing radiator cap, thoroughly wipe out the radiator filler neck to remove any waxy residue
or foreign material.
RADIATOR
RADIATOR : Inspection
INFOID:0000000010782934
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 harness 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 (4.9 bar, 5 kg/cm
2
, 71 psi) and keep distance more than 30 cm
(11.81 in).
5.
Blow air again into all the radiator core surfaces once per minute until no water sprays out.
JPBIA1961ZZ
Standard and Limit
: Refer to
PBIC5122J
RADIATOR
CO-17
< REMOVAL AND INSTALLATION >
[MR20DD]
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REMOVAL AND INSTALLATION
RADIATOR
Exploded View
INFOID:0000000010782935
REMOVAL
Removal and Installation
INFOID:0000000010782936
REMOVAL
WARNING:
• Never remove radiator cap when engine is hot. Serious burns may occur from high-pressure engine
coolant escaping from radiator.
Reservoir tank cap
Reservoir tank
Reservoir tank hose
Clip
Mounting bracket
Mounting rubber (upper)
Radiator cap
Side seal
Side seal
Radiator
Mounting rubber (lower)
O-ring
Drain plug
Side seal
Clamp
Radiator hose (lower)
Clamp
Radiator hose (upper)
Cooling fan assembly
To water outlet
To water inlet
: Always replace after every disassembly.
: N·m (kg-m, in-lb)
JSBIA4311GB
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