NISSAN X-TRAIL 2005 Service Repair Manual

RADIATOR
CO-35
[YD22DDTi]
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RADIATORPFP:21400
Removal and InstallationEBS00BB0
WARNING:
Do not remove radiator cap when engine is hot. Serious burns could occur from high-pressure engine
coolant escaping from radiator.
REMOVAL
1. Drain engine coolant from radiator. Refer to CO-32, "DRAINING ENGINE COOLANT" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belts.
2. Disconnect radiator hose (upper and lower).
3. Remove reservoir tank hose and radiator mounting bracket.
4. Remove radiator and cooling fan assembly.
CAUTION:
Do not damage or scratch radiator core when removing.
INSTALLATION
Installation is the reverse order of removal.
INSPECTION AFTER INSTALLATION

Check for leaks of engine coolant using the radiator cap tester adapter (special service tool:
EG17650301) and the radiator cap tester (commercial service tool). Refer to CO-32, "
CHECKING RADIA-
TOR SYSTEM FOR LEAKS" .
1. Radiator 2. Radiator mounting bracket 3. Mounting rubber (upper)
4. Radiator cap 5. Mounting rubber (lower) 6. O-ring
7. Drain plug 8. Radiator hose (lower) 9. Cooling fan assembly
10. Reservoir tank bracket 11. Reservoir tank 12. Reservoir tank hose
13. Radiator hose (upper)
PBIC3609E

CO-36
[YD22DDTi]
RADIATOR


Start and warm up engine. Visually check if there is no leaks of engine coolant.
Checking Radiator CapEBS01FA3

Check valve seat of radiator cap.
–Check if valve seat is swollen to the extent that the edge of the
plunger cannot be seen when watching it vertically from the top.
–Check if valve seat has no soil and damage.

Pull negative-pressure valve to open it, and make sure that it is
completely closed when released.
–Make sure that there is no dirt or damage on the valve seat of
radiator cap negative-pressure valve.
–Make sure 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 (com-
mercial service tool) and the radiator cap tester adapter (special
service tool), 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.
Checking RadiatorEBS011WN
Check radiator for mud or clogging. If necessary, clean radiator as follows.

Be careful not to bend or damage the radiator fins.

When 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.

Use compressed air lower than 490 kPa (4.9 bar, 5 kg/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.
PBIC2816E
SMA967B
Standard:
78 - 98 kPa (0.78 - 0.98bar, 0.8 - 1.0 kg/cm
2 , 11 - 14 psi)
Limit:
59 kPa (0.59bar, 0.6 kg/cm
2 , 9 psi)
SLC755AC

COOLING FAN
CO-37
[YD22DDTi]
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COOLING FANPFP:21140
Removal and InstallationEBS011WO
REMOVAL
1. Drain engine coolant from radiator. Refer to CO-32, "Changing Engine Coolant" .
CAUTION:
Perform when engine is cold.
2. Remove air duct (inlet) and air duct assembly. Refer to EM-142, "
AIR CLEANER AND AIR DUCT" .
3. Disconnect radiator hose (upper) at radiator side. Refer to CO-12, "
RADIATOR" .
CAUTION:
Do not spill engine coolant on drive belt.
4. Disconnect harness connectors from fan motors, and move them to aside.
5. Remove radiator cooling fan assembly. Refer to CO-35, "
RADIATOR" .
CAUTION:
Be careful not to damage or scratch on radiator core.
INSTALLATION
Installation is the reverse order of removal.

Cooling fans are controlled by ECM. For details, refer to EC-1124, "DTC P0217 ENGINE OVER TEM-
PERATURE" (WITH EURO-OBD), EC-1480, "DTC P0217 ENGINE OVER TEMPERATURE" (WITHOUT
EURO-OBD).
DISASSEMBLY AND ASSEMBLY
Disassembly
1. Remove cooling fans.
2. Remove cooling fan motor (RH and LH) from cooling fan shroud.

Put marks to identify installation positions of cooling fan motor.
1. Cooling fan motor (LH) 2. Cooling fan motor (RH) 3. Cooling fan shroud
4. Cooling fans
PBIC3610E

CO-38
[YD22DDTi]
COOLING FAN

Assembly
Assembly is the reverse order of disassembly.
CAUTION:
RH and LH cooling fan motors are different. Be careful not to misassemble them.

RADIATOR (ALUMINUM TYPE)
CO-39
[YD22DDTi]
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RADIATOR (ALUMINUM TYPE)PFP:21460
Disassembly and AssemblyEBS00BB3
PREPARATION
1. Attach the spacer to the tip of the radiator plate pliers A (special
service tool).
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 (special service tool)
are closed dimension H′′ is approx. 7.6 mm (0.299 in).
3. Adjust dimension H′′ with the spacer, if necessary.
DISASSEMBLY
1. Remove upper or lower tanks with radiator plate pliers B (special
service tool).
1. Upper tank 2. Sealing rubber 3. Core
4. Lower tank
PBIC2075E
SLC655C
SLC903

CO-40
[YD22DDTi]
RADIATOR (ALUMINUM TYPE)


Grip the crimped edge and bend it upwards so that radiator
plate pliers B slips off.
CAUTION:
Do not bend excessively.

In areas where radiator plate pliers B cannot be used, use a
screwdriver to bend the edge up.
CAUTION:
Be careful not to damage tank.
2. Remove sealing rubber.
3. Make sure the edge stands straight up.
ASSEMBLY
1. Clean contact portion of tank.
SLC893
SLC930
SLC931
SLC932

RADIATOR (ALUMINUM TYPE)
CO-41
[YD22DDTi]
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2. Install sealing rubber while pushing it with fingers.
CAUTION:
Be careful not to twist sealing rubber.
3. Caulk tank in numerical order as shown in the figure with radia-
tor plate pliers A (special service tool).

Use pliers in the locations where radiator plate pliers A cannot
be used.
4. Make sure that the rim is completely crimped down.
5. Make sure that there is no leakage.
Refer to CO-42, "
INSPECTION" .
SLC917A
SLC904
PBIC2076E
SLC897
Standard height “H”: 8.0 - 8.4 mm (0.315 - 0.331 in)
SLC554A

CO-42
[YD22DDTi]
RADIATOR (ALUMINUM TYPE)

INSPECTION
1. Apply pressure with the radiator cap tester adapter (special ser-
vice tool) and the radiator cap tester (commercial service tool).
WARNING:
To prevent the risk of hose coming undone while under
pressure, securely fasten it down with hose clamp.
2. Check for leakage by soaking radiator in water container with
the testing pressure applied.Testing pressure
: 157 kPa (1.57 bar, 1.6 kg/cm
2 , 23 psi)
SLC933
SLC934

WATER PUMP
CO-43
[YD22DDTi]
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WAT E R P U MPPFP:21020
Removal and InstallationEBS00BB4
WARNING:
Do not remove radiator cap when the engine is hot. Serious burns could occur from high pressure
engine coolant escaping from the radiator.
REMOVAL
1. Remove RH engine undercover.
2. Remove drive belt. Refer to EM-140, "
DRIVE BELTS" .
3. Drain engine coolant. Refer to CO-32, "
DRAINING ENGINE COOLANT" .
CAUTION:
Perform when engine is cold.
4. Support the bottom of oil pan (lower) with a floor jack etc, and remove RH engine mounting insulator (front
side of engine). Refer to EM-222, "
ENGINE ASSEMBLY" .
5. Remove water pump pulley.

Loosen the pulley bolts after fixing the pulley using a screwdriver etc.
6. Remove RH engine mounting bracket.
7. Remove water pump.

Engine coolant will leak from cylinder block, so have a receptacle ready below.
CAUTION:

Handle the water pump vane so that it does not contact any other parts.

Water pump cannot be disassembled and should be replaced as a unit.
1. Gasket 2. Water pump 3. RH engine mounting bracket
4. Water pump pulley
PBIC2384E

CO-44
[YD22DDTi]
WATER PUMP

INSPECTION AFTER REMOVAL

Visually check if there is no significant dirt or rusting on the
water pump body and vane.

Make sure that there is no looseness in the vane shaft, and that
it turns smoothly when rotated by hand.

If there are any unusualness, replace water pump assembly as
necessary.
INSTALLATION

Installation is the reverse order of removal.

Install water pump pulley with the front mark (painted white, used to prevent errors during assembly) fac-
ing the front of engine. Refer to CO-43, "
WATER PUMP" .
INSPECTION AFTER INSTALLATION

Check for leaks of engine coolant using the radiator cap tester adapter (special service tool:
EG17650301) and the radiator cap tester (commercial service tool). Refer to CO-32, "
CHECKING RADIA-
TOR SYSTEM FOR LEAKS" .

Start and warm up engine. Visually check if there is no leaks of engine coolant.
SBIA0132E