2005 NISSAN X-TRAIL Drive belt

CO-12
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RADIATOR

RADIATORPFP:21400
Removal and InstallationEBS00KOI
WARNING:
Do not remove radiator cap when the engine is hot. Serious burns could occur from high-pressure
engine coolant escaping from radiator. Wrap a thick cloth around the cap. Slowly turn it a quarter of a
turn to release built-up pressure. Carefully remove radiator cap by turning it all the way.
REMOVAL
1. Remove RH and LH undercovers.
2. Drain engine coolant. Refer to CO-9, "
Changing Engine Coolant" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belt.
3. Remove air duct (inlet) and air duct assembly. Refer to EM-16, "
AIR CLEANER AND AIR DUCT" .
4. Disconnect harness connector from fan motor, and move it aside.
5. Disconnect radiator hoses (upper and lower).
6. Remove A/T fluid cooler hoses. (A/T models)

Install blind plug to avoid leakage of A/T fluid.
7. Remove radiator mounting brackets.
8. Remove radiator and radiator cooling fan assembly.
CAUTION:
Do not damage or scratch radiator core when removing.
1. Reservoir tank 2. Reservoir tank cap 3. Reservoir tank hose
4. Radiator mounting bracket 5. Mounting rubber (upper) 6. Radiator cap
7. Radiator 8. O-ring 9. Radiator drain plug
10. Mounting rubber (lower) 11. A/T fluid cooler hose 12. Radiator hose (lower)
13. Radiator hose (upper) 14. Bracket 15. Radiator cooling fan assembly
PBIC3640E

COOLING FAN
CO-19
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COOLING FANPFP:21140
Removal and InstallationEBS011TD
REMOVAL
1. Drain engine coolant from radiator. Refer to CO-9, "Changing Engine Coolant" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belt.
2. Remove air duct (inlet) and air duct assembly. Refer to EM-16, "
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.
CAUTION:
Be careful not to damage or scratch on radiator core.
INSTALLATION
Installation is the reverse order of removal.
NOTE:
Cooling fans are controlled by ECM. For details, refer to EC-352, "
DTC P1217 ENGINE OVER TEMPERA-
TURE" (WITH EURO-OBD) or EC-755, "DTC P1217 ENGINE OVER TEMPERATURE" (WITHOUT EURO-
OBD).
1. Fan motor (LH) 2. Fan motor (RH) 3. Fan shroud
4. Cooling fan (RH) 5. Cooling fan (LH)
PBIC2593E

WATER PUMP
CO-21
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WAT E R P U MPPFP:21020
Removal and InstallationEBS00KON
REMOVAL
1. Drain engine coolant. Refer to CO-9, "Changing Engine Coolant" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belt.
2. Remove the following parts.

RH undercover

Drive belt; Refer to EM-13, "DRIVE BELTS" .

Drive belt auto-tensioner; Refer to EM-14, "Removal and Installation of Drive Belt Auto-Tensioner" .
3. Remove water pump.

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

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

Water pump cannot be disassembled and should be replaced as a unit.
4. Remove water pump housing with the following procedure;
a. Remove alternator. Refer to SC-13, "
CHARGING SYSTEM" .
b. Remove oil level gauge and oil level gauge guide. Refer to EM-27, "
OIL PAN AND OIL STRAINER" .
CAUTION:
Plug the oil level gauge guide opening to prevent oil pan from entering foreign materials.
c. Remove mounting bolts for water pipe.
d. Remove water pump housing.
5. Remove exhaust manifold and three way catalyst assembly. Refer to EM-25, "
EXHAUST MANIFOLD
AND THREE WAY CATALYST" .
6. Remove water pipe.
1. Water pump 2. Gasket 3. Gasket
4. Water pump housing 5. Gasket 6. Water pipe
7. O-ring
PBIC2253E

THERMOSTAT AND WATER CONTROL VALVE
CO-23
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THERMOSTAT AND WATER CONTROL VALVEPFP:21200
Removal and InstallationEBS00KOO
REMOVAL
1. Drain engine coolant. Refer to CO-9, "Changing Engine Coolant" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belt.
2. Disconnect radiator hose (lower) at water inlet side. Refer to CO-12, "
RADIATOR" .
3. Remove water inlet and thermostat.
4. Remove water control valve with the following procedure:
a. Disconnect radiator hose (upper) at water control valve housing (water outlet) side.
b. Disconnect harness connector from engine coolant temperature sensor.
c. Disconnect water hoses.
d. Remove heater pipe and heater hose.
e. After removing water control valve housing (water outlet) and water control valve.
1. Thermostat 2. O-ring 3. Water inlet
4. Water control valve 5. O-ring 6. Gasket
7. Water control valve housing (water outlet) 8. Washer 9. Engine coolant temperature sensor
10. Water hose 11. Heater hose 12. O-ring
13. Heater pipe 14. Water hose 15. Heater hose
PBIC3597E

CO-28
[YD22DDTi]
OVERHEATING CAUSE ANALYSIS

OVERHEATING CAUSE ANALYSISPFP:00012
Troubleshooting ChartEBS00BAW
Symptom Check items
Cooling sys-
tem parts
malfunctionPoor heat transferWater pump malfunction Worn or loose drive belt
— Thermostat stuck closed —
Damaged finsDust contamination or
paper clogging
Physical damage
Clogged radiator cooling
tubeExcess foreign material
(rust, dirt, sand, etc.)
Reduced air flowCooling fan does not oper-
ateRefer to DTC in EC1217
(cooling system)
— High resistance to fan rota-
tion
Fan assembly
Damaged fan blades
Damaged radiator shroud — — —
Improper engine coolant
mixture ratio—— —
Poor engine coolant quality — Engine coolant density —
Insufficient engine coolantEngine coolant leaksCooling hoseLoose clamp
Cracked hose
Water pump Poor sealing
Radiator capLoose
Poor sealing
RadiatorO-ring for damage, deterio-
ration or improper fitting
Cracked radiator tank
Cracked radiator core
Reservoir tank Cracked reservoir tank
Overflowing reservoir tankExhaust gas leaks into
cooling systemCylinder head deterioration
Cylinder head gasket dete-
rioration

CO-32
[YD22DDTi]
ENGINE COOLANT

ENGINE COOLANTPFP:KQ100
InspectionEBS00BAY
LEVEL CHECK

Check if the reservoir tank engine coolant level is within “MIN” to
“MAX” when engine is cool.

Adjust engine coolant level as necessary.
CHECKING RADIATOR SYSTEM FOR LEAKS

To check for leaks, apply pressure to the cooling system with the
radiator cap tester (commercial service tool) and the radiator
cap tester adapter (special service tool).
WARNING:
Do not remove radiator cap when engine is hot. Serious
burns could occur from high pressure engine coolant
escaping from radiator.
CAUTION:
Higher test pressure than specified may cause radiator
damage.
NOTE:
In a case that engine coolant decreases, replenish radiator with engine coolant.

If anything is found, repair or replace damaged parts.
Changing Engine CoolantEBS00BAZ
WARNING:

To avoid being scalded, do not change engine coolant when engine is hot.

Wrap a thick cloth around cap and carefully remove radiator cap. First, turn radiator cap a quarter
of a turn to release built-up pressure. Then turn the cap all the way.
DRAINING ENGINE COOLANT
1. Remove engine undercover.
2. Open radiator drain plug at the bottom of radiator, and remove
radiator cap.
CAUTION:

Be careful not to allow engine coolant to contact drive
belts.

Cover the exhaust tube heat shield to prevent from
splashing engine coolant.
When draining all engine coolant in the system, open water drain plug on engine cylinder block. Refer
to EM-231, "
DISASSEMBLY".
3. Remove reservoir tank, drain engine coolant, then clean reservoir tank.
4. Check drained engine coolant for contaminants such as rust, corrosion or discoloration.
SMA412B
Testing pressure:
157 kPa (1.57 bar, 1.6 kg/cm
2 , 23 psi)
SLC134B
PBIC0236E

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

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