radiator NISSAN X-TRAIL 2003 Electronic User Guide

ENGINE COOLANT
CO-9
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ENGINE COOLANTPFP:KQ100
InspectionEBS009SD
LEVEL CHECK
lCheck if the reservoir tank coolant level within MIN to MAX when
engine is cool.
lAdjust coolant if too much or too little.
LEAK CHECK
lTo check for leakage, apply pressure to the cooling system with
atester.
WA RN ING:
Never remove the radiator cap when the engine is hot. Serious
burns could occur from high pressure coolant escaping from
the radiator.
CAUTION:
Higher pressure than specified may cause radiator damage.
Changing Engine CoolantEBS009SE
WA RN ING:
lTo avoid being scalded, never change the coolant when the engine is hot.
lWrap a thick cloth around cap and carefully remove the cap. First, turn the cap a quarter of a turn
to release built-up pressure. Then turn the cap all the way.
DRAINING ENGINE COOLANT
1. Open radiator drain plug at the bottom of radiator, and remove
radiator cap.
lBe careful not to allow coolant to contact drive belts.
SMA412B
Testing pressure
: 157 kPa (1.57bar 1.6 kg/cm2,23psi)
SLC134B
PBIC0236E

CO-10
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ENGINE COOLANT
2. Open drain plugs on cylinder block.
3. Remove reservoir tank and drain coolant.
4. Check drained coolant for contaminants such as rust, corrosion
or discoloration.
If contaminated, flush engine cooling system. Refer toCO-10,
"FLUSHING COOLING SYSTEM".
REFILLING ENGINE COOLANT
1. Install reservoir tank, radiator drain plug and cylinder block drain plug.
Apply sealant to the thread of cylinder block drain plug.
lUse Genuine Liquid Gasket or equivalent.
2. Fill radiator and reservoir tank to specified level.
lUse genuine Nissan anti-freeze coolant or equivalent mixed
with water (distilled or demineralized).
Refer toMA-17, "
RECOMMENDED FLUIDS AND LUBRI-
CANTS".
lPour coolant slowly of less than 2 (2-1/8US qt,1-3/4 lmp
qt) a minute to allow air in system to escape.
3. Warm up engine to normal operating temperature without radia-
tor cap installed.
lIf coolant overflows radiator filler hole, install filler cap.
4. Run engine at 3,000 rpm for 10 seconds and return to idle speed
with radiator cap installed.
lRepeat two or three times.
Watch coolant temperature gauge so as not to overheat the engine.
5. Stop engine and cool down to less than approximately 50°C(122°F).
lCool down using a fan to reduce the time.
lIf necessary, refill radiator up to filler neck with coolant.
6. Refill reservoir tank to MAX level line with coolant.
7. Repeat steps 5 through 7 two or more times with radiator cap installed until coolant level no longer drops.
8. Check cooling system for leaks with engine running.
9. Warm up engine, and check for sound of coolant flow while running engine from idle up to 3,000 rpm with
heater temperature controller set at several position between COOL and WARM.
lSound may be noticeable at heater unit.
10. If sound is heard, bleed air from cooling system by repeating steps 5 through 7 until coolant level no
longer drops.
lClean excess coolant from engine.
FLUSHING COOLING SYSTEM
1. Fill radiator and reservoir tank with water and reinstall radiator cap.
KBIA0163E
: 7.8 - 11.8 N·m (0.8 -1.2 kg-m , 69 - 104 in-lb)
Engine coolant capacity (With reservoir tank):
Approx. 7.1 (6-1/4 Imp qt)
SMA182B
Reservoir tank:
0.6 (1/2 lmp qt )
SMA412B

ENGINE COOLANT
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2. Run engine and warm it up to normal operating temperature.
3. Rev engine two or three times under no-load.
4. Stop engine and wait until it cools down.
5. Drain water.
6. Repeat steps 1 through 5 until clear water begins to drain from radiator.

CO-12
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RADIATOR
RADIATOR
PFP:21400
Removal and InstallationEBS009SF
WAR NIN G:
Never remove the radiator cap when the engine is hot. Serious burns could occur from high pressure
coolant escaping from the radiator. Wrap a thick cloth around the cap. Slowly turn it a quarter turn to
allow built-up pressure to escape. Carefully remove the cap by turning it all the way.
REMOVAL
1. Drain coolant. Refer toCO-9, "DRAINING ENGINE COOLANT".
2. Remove air duct with air cleaner assembly.
3. Remove A/T oil cooler hose.
lInstall blind plug to avoid leakage of A/T fluid.
4. Disconnect radiator upper hose, lower hose and mounting bracket.
5. Remove radiator and radiator fan assembly
CAUTION:
lDo not damage or scratch radiator core when removing.
INSTALLATION
lReinstall any parts removed in reverse order of removal.
lCheck for coolant leaks. Refer toCO-9, "LEAK CHECK".
PBIC0237E
1 Radiator 2 Bracket 3 Mounting rubber
4 A/T oil cooler hose 5 Radiator hose (lower) 6 Radiator fan assembly
7 Reservoir tank 8 Radiator hose (upper) 9 Radiator filler cap

RADIATOR
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Disassembly and Assembly Radiator FanEBS009SG
DISASSEMBLY
1. Remove radiator fan.
2. Remove insulator.
3. Remove fan motor from fan shroud.
ASSEMBLY
lInstall in the reverse order of removal.
INSPECTIONEBS009SH
CHECKING RADIATOR CAP
lCheck that there is no dirt or damage on the valve seat of the radiator cap negative-pressure valve.
lCheck that there are no unusualness in the opening and closing
conditions of the negative-pressure valve.
lPull the negative pressure valve to open it.
lCheck that it close completely when released.
PBIC0238E
1 Radiator fan motors 2 Radiator fan shroud 3 Radiator fan
SMA967B

CO-14
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RADIATOR
lCheck radiator cap relief pressure.
lWhen connecting the radiator cap to the tester, apply water or
LLC to the cap seal part.
lReplace the radiator cap if there is an unusualness in the nega-
tive-pressure valve, or if the open-valve pressure is outside of
the standard values.
CHECKING RADIATOR
Check radiator for mud or clogging. If necessary, clean radiator as follows.
lBe careful not to bend or damage the radiator fins.
lWhen radiator is cleaned without removal, remove all surrounding parts such as cooling fan, radiator
shroud and horns. Then tape the harness and connectors to prevent water from entering.
1. Apply water by hose to the back side of the radiator core vertically downwards.
2. Apply water again to all radiator core surface once per minute.
3. Stop washing if any stains no longer flow out from the radiator.
4. Blow air into the back side of radiator core vertically downwards.
lUsecompressedairlowerthan490kPa(5kg/cm2, 71psi) and keep distance more than 30 cm(11.8 in).
5. Blow air again into all the radiator core surface once per minute until no water sprays out.Standard
: 78- 98 kPa (0.78-0.98bar, 0.8 - 1.0 kg/cm
2,
11 - 14 psi)
Limit
: 59kpa (0.59bar, 0.6kg/cm
2,9psi)
SLC135B

RADIATOR (ALUMINUM TYPE)
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RADIATOR (ALUMINUM TYPE)PFP:21460
Disassembly and AssemblyEBS009SI
PREPARATION
1. Attach the spacer to the tip of the radiator plate pliers A.
Spacer specification: 1.5 mm (0.059 in) thick x 18 mm (0.71 in)
wide x 8.5 mm (0.335 in) long.
2. Make sure that when radiator plate pliers A are closed dimen-
sion H¢¢is approx. 7.6 mm (0.299 in).
3. Adjust dimension H¢¢with the spacer, if necessary.
DISASSEMBLY
1. Remove tank with Tool.
SLC882AB
SLC655C
SLC903

CO-16
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RADIATOR (ALUMINUM TYPE)
lGrip the crimped edge and bend it upwards so that Tool slips
off.
Do not bend excessively.
lIn areas where Tool cannot be used, use a screwdriver to bend
the edge up.
Be careful not to damage tank.
2. Make sure the edge stands straight up.
3. Remove oil cooler from tank. (A/T model only)
ASSEMBLY
1. Install oil cooler. (A/T model only)
Pay attention to direction of conical washer.
SLC893
SLC930
SLC931
SLC894

RADIATOR (ALUMINUM TYPE)
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2. Clean contact portion of tank.
3. Install sealing rubber.
Push it in with fingers.
Be careful not to twist sealing rubber.
4. Caulk tank in specified sequence with Tool.
lUse pliers in the locations where Tool cannot be used.
SLC932
SLC917A
SLC904
SLC896
SLC897

CO-18
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RADIATOR (ALUMINUM TYPE)
5. Make sure that the rim is completely crimped down.
6. Confirm that there is no leakage.
Refer to Inspection.
INSPECTION
1. Apply pressure with Tool.
WAR NIN G:
To prevent the risk of the hose coming undone while under
pressure, securely fasten it down with a hose clamp.
Attach a hose to the oil cooler as well. (A/T model only)
2. Check for leakage.Standard height “H” : 8.0 - 8.4 mm (0.315 - 0.331 in)
SLC554A
Specified pressure
value: 157 kPa (1.57 bar, 1.6 kg/cm2,
23 psi)
SLC933
SLC934