2003 NISSAN X-TRAIL radiator

SQUEAK AND RATTLE TROUBLE DIAGNOSES
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TRUNK
Trunk noises are often caused by a loose jack or loose items put into the trunk by the owner.
In addition look for:
1. Trunk lid dumpers out of adjustment
2. Trunk lid striker out of adjustment
3. Trunk lid torsion bars knocking together
4. A loose license plate or bracket
Most of these incidents can be repaired by adjusting, securing or insulating the item(s) or component(s) caus-
ing the noise.
SUNROOF/HEADLINER
Noises in the sunroof/headliner area can often be traced to one of the following:
1. Sunroof lid, rail, linkage or seals making a rattle or light knocking noise
2. Sunvisor shaft shaking in the holder
3. Front or rear windshield touching headliner and squeaking
Again, pressing on the components to stop the noise while duplicating the conditions can isolate most of these
incidents. Repairs usually consist of insulating with felt cloth tape.
SEATS
When isolating seat noise it's important to note the position the seat is in and the load placed on the seat when
the noise is present. These conditions should be duplicated when verifying and isolating the cause of the
noise.
Cause of seat noise include:
1. Headrest rods and holder
2. A squeak between the seat pad cushion and frame
3. Rear seat back lock and bracket
These noises can be isolated by moving or pressing on the suspected components while duplicating the con-
ditions under which the noise occurs. Most of these incidents can be repaired by repositioning the component
or applying urethane tape to the contact area.
UNDERHOOD
Some interior noise may be caused by components under the hood or on the engine wall. The noise is then
transmitted into the passenger compartment.
Causes of transmitted underhood noise include:
1. Any component mounted to the engine wall
2. Components that pass through the engine wall
3. Engine wall mounts and connectors
4. Loose radiator mounting pins
5. Hood bumpers out of adjustment
6. Hood striker out of adjustment
These noise can be difficult to isolate since they cannot be reached from the interior of the vehicle. The best
method is to secure, move or insulate one component at a time and test drive the vehicle. Also, engine RPM
or load can be changed to isolate the noise. Repairs can usually be made by moving, adjusting securing, or
insulating the component causing the noise.

EI-8
SQUEAK AND RATTLE TROUBLE DIAGNOSES

TRUNK
Trunk noises are often caused by a loose jack or loose items put into the trunk by the owner.
In addition look for:
1. Trunk lid dumpers out of adjustment
2. Trunk lid striker out of adjustment
3. Trunk lid torsion bars knocking together
4. A loose license plate or bracket
Most of these incidents can be repaired by adjusting, securing or insulating the item(s) or component(s) caus-
ing the noise.
SUNROOF/HEADLINING
Noises in the sunroof/headlining area can often be traced to one of the following:
1. Sunroof lid, rail, linkage or seals making a rattle or light knocking noise
2. Sunvisor shaft shaking in the holder
3. Front or rear windshield touching headlining and squeaking
Again, pressing on the components to stop the noise while duplicating the conditions can isolate most of these
incidents. Repairs usually consist of insulating with felt cloth tape.
SEATS
When isolating seat noise it's important to note the position the seat is in and the load placed on the seat when
the noise is present. These conditions should be duplicated when verifying and isolating the cause of the
noise.
Cause of seat noise include:
1. Headrest rods and holder
2. A squeak between the seat pad cushion and frame
3. Rear seat back lock and bracket
These noises can be isolated by moving or pressing on the suspected components while duplicating the con-
ditions under which the noise occurs. Most of these incidents can be repaired by repositioning the component
or applying urethane tape to the contact area.
UNDERHOOD
Some interior noise may be caused by components under the hood or on the engine wall. The noise is then
transmitted into the passenger compartment.
Causes of transmitted underhood noise include:
1. Any component mounted to the engine wall
2. Components that pass through the engine wall
3. Engine wall mounts and connectors
4. Loose radiator mounting pins
5. Hood bumpers out of adjustment
6. Hood striker out of adjustment
These noise can be difficult to isolate since they cannot be reached from the interior of the vehicle. The best
method is to secure, move or insulate one component at a time and test drive the vehicle. Also, engine RPM
or load can be changed to isolate the noise. Repairs can usually be made by moving, adjusting securing, or
insulating the component causing the noise.

SQUEAK AND RATTLE TROUBLE DIAGNOSES
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TRUNK
Trunk noises are often caused by a loose jack or loose items put into the trunk by the owner.
In addition look for:
1. Trunk lid dumpers out of adjustment
2. Trunk lid striker out of adjustment
3. Trunk lid torsion bars knocking together
4. A loose license plate or bracket
Most of these incidents can be repaired by adjusting, securing or insulating the item(s) or component(s) caus-
ing the noise.
SUNROOF/HEADLINING
Noises in the sunroof/headlining area can often be traced to one of the following:
1. Sunroof lid, rail, linkage or seals making a rattle or light knocking noise
2. Sunvisor shaft shaking in the holder
3. Front or rear windshield touching headlining and squeaking
Again, pressing on the components to stop the noise while duplicating the conditions can isolate most of these
incidents. Repairs usually consist of insulating with felt cloth tape.
SEATS
When isolating seat noise it's important to note the position the seat is in and the load placed on the seat when
the noise is present. These conditions should be duplicated when verifying and isolating the cause of the
noise.
Cause of seat noise include:
1. Headrest rods and holder
2. A squeak between the seat pad cushion and frame
3. Rear seat back lock and bracket
These noises can be isolated by moving or pressing on the suspected components while duplicating the con-
ditions under which the noise occurs. Most of these incidents can be repaired by repositioning the component
or applying urethane tape to the contact area.
UNDERHOOD
Some interior noise may be caused by components under the hood or on the engine wall. The noise is then
transmitted into the passenger compartment.
Causes of transmitted underhood noise include:
1. Any component mounted to the engine wall
2. Components that pass through the engine wall
3. Engine wall mounts and connectors
4. Loose radiator mounting pins
5. Hood bumpers out of adjustment
6. Hood striker out of adjustment
These noise can be difficult to isolate since they cannot be reached from the interior of the vehicle. The best
method is to secure, move or insulate one component at a time and test drive the vehicle. Also, engine RPM
or load can be changed to isolate the noise. Repairs can usually be made by moving, adjusting securing, or
insulating the component causing the noise.

SQUEAK AND RATTLE TROUBLE DIAGNOSES
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TRUNK
Trunk noises are often caused by a loose jack or loose items put into the trunk by the owner.
In addition look for:
1. Trunk lid dumpers out of adjustment
2. Trunk lid striker out of adjustment
3. Trunk lid torsion bars knocking together
4. A loose license plate or bracket
Most of these incidents can be repaired by adjusting, securing or insulating the item(s) or component(s) caus-
ing the noise.
SUNROOF/HEADLINING
Noises in the sunroof/headlining area can often be traced to one of the following:
1. Sunroof lid, rail, linkage or seals making a rattle or light knocking noise
2. Sunvisor shaft shaking in the holder
3. Front or rear windshield touching headlining and squeaking
Again, pressing on the components to stop the noise while duplicating the conditions can isolate most of these
incidents. Repairs usually consist of insulating with felt cloth tape.
SEATS
When isolating seat noise it's important to note the position the seat is in and the load placed on the seat when
the noise is present. These conditions should be duplicated when verifying and isolating the cause of the
noise.
Cause of seat noise include:
1. Headrest rods and holder
2. A squeak between the seat pad cushion and frame
3. Rear seat back lock and bracket
These noises can be isolated by moving or pressing on the suspected components while duplicating the con-
ditions under which the noise occurs. Most of these incidents can be repaired by repositioning the component
or applying urethane tape to the contact area.
UNDERHOOD
Some interior noise may be caused by components under the hood or on the engine wall. The noise is then
transmitted into the passenger compartment.
Causes of transmitted underhood noise include:
1. Any component mounted to the engine wall
2. Components that pass through the engine wall
3. Engine wall mounts and connectors
4. Loose radiator mounting pins
5. Hood bumpers out of adjustment
6. Hood striker out of adjustment
These noise can be difficult to isolate since they cannot be reached from the interior of the vehicle. The best
method is to secure, move or insulate one component at a time and test drive the vehicle. Also, engine RPM
or load can be changed to isolate the noise. Repairs can usually be made by moving, adjusting securing, or
insulating the component causing the noise.

ATC-106
TROUBLE DIAGNOSIS

*1AT C - 6 5 , "Operational Check".*2ATC-59, "FUNCTION CONFIRMA-
TION PROCEDURE", see No. 1.*3ATC-59, "
FUNCTION CONFIRMA-
TION PROCEDURE", see No. 5 to 7.
*4 QR engine: CO-9, "
Changing
Engine Coolant" or YD engine: CO-
31, "Changing Engine Coolant" .*5 QR engine; CO-13, "
Checking Radi-
ator Cap" or YD engine; CO-35,
"Checking Radiator Cap" .*6 QR engine; (WITH EURO-OBD) EC-
162, "DTC P0117, P0118 ECT SEN-
SOR" .
QR engine; (WITHOOUT EURO-
OBD) EC-597, "
DTC P0117, P0118
ECT SENSOR" .
YD engine; (WITH EURO-OBD) EC-
981, "DTC P0117, P0118 ECT SEN-
SOR" .
YD engine; (WITHOUT EURO-OBD)
EC-1291, "
DTC P0117, P0118 ECT
SENSOR" .
*7AT C - 5 9 , "
FUNCTION CONFIRMA-
TION PROCEDURE", see No. 9.*8ATC-69, "
LAN System Circuit".*9ATC-82, "Blower Motor Circuit".
*10AT C - 7 6 , "
Air Mix Door Motor Cir-
cuit".

ATC-132
HEATER & COOLING UNIT ASSEMBLY

9. Remove steering member.
10. Remove heater & cooling unit.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace the O-ring of the low-pressure flexible hose and the high-pressure pipe with a new one,
and then apply compressor oil to it when installing it.

When recharging refrigerant, check for leaks.
NOTE:
When filling radiator with coolant, refer to CO-9, "
Changing Engine Coolant" for QR engine or CO-31, "Chang-
ing Engine Coolant" for YD engine.
Disassembly and AssemblyEJS000UU
NOTE:
This illustration is for RHD models. The layout for LHD models is symmetrically opposite.
RJIA2404E

ATC-156
REFRIGERANT LINES

5. Disconnect refrigerant pressure sensor connector (With QR
engine) or dual-pressure switch connector (With YD engine).
6. Remove front grille and radiator mounting bracket.
7. Remove mounting nuts from condenser.
8. Remove radiator from lower mount, move it to engine side, and
then remove condenser between radiator and radiator core sup-
port.
CAUTION:
Be careful not to damage the core surface of condenser and
radiator.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace the O-rings of high-pressure pipe and high-pressure flexible hose with new ones, then
apply compressor oil to them after installing them.

When recharging refrigerant, check for leaks.
Removal and Installation of Liquid TankEJS0028C
REMOVAL
1. Remove condenser. Refer to ATC-155, "Removal and Installation of Condenser" .
2. Clean liquid tank and its surrounding area, and remove dirt and rust from liquid tank.
CAUTION:
Be sure to clean carefully.
RJIA0690E
RJIA0691E
RJIA0081E
Condenser mounting nuts
Tightening torque : 4.2 N·m (0.43 kg-m, 37 in-lb)

MA-1
MAINTENANCE
L MAINTENANCE
CONTENTS
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MAINTENANCE
PREPARATION ........................................................... 3
Special Service Tools ............................................... 3
Commercial Service Tools ........................................ 3
DESCRIPTION ............................................................ 4
Pre-delivery Inspection Items ................................... 4
GENERAL MAINTENANCE ....................................... 6
General Maintenance ............................................... 6
PERIODIC MAINTENANCE ....................................... 7
Periodic Maintenance ............................................... 7
ENGINE AND EMISSION CONTROL MAINTE-
NANCE (QR20DE AND QR25DE PETROL
ENGINE) ............................................................... 7
CHASSIS AND BODY MAINTENANCE
(QR20DE AND QR25DE PETROL ENGINE) ....... 8
ENGINE AND EMISSION CONTROL MAINTE-
NANCE (YD22DDTI DIESEL ENGINE) ................ 9
CHASSIS AND BODY MAINTENANCE
(YD22DDTI DIESEL ENGINE) .............................. 9
MAINTENANCE UNDER SEVERE DRIVING
CONDITIONS ...................................................... 10
ENGINE AND EMISSION CONTROL MAINTE-
NANCE (QR20DE AND QR25DE PETROL
ENGINE) ............................................................. 12
CHASSIS AND BODY MAINTENANCE
(QR20DE AND QR25DE PETROL ENGINE) ..... 13
ENGINE AND EMISSION CONTROL MAINTE-
NANCE (YD22DDTI DIESEL ENGINE) .............. 14
CHASSIS AND BODY MAINTENANCE
(YD22DDTI DIESEL ENGINE) ............................ 14
MAINTENANCE UNDER SEVERE DRIVING
CONDITIONS ...................................................... 15
RECOMMENDED FLUIDS AND LUBRICANTS ...... 17
Fluids and Lubricants ............................................. 17
SAE Viscosity Number ........................................... 18
GASOLINE ENGINE ........................................... 18
DIESEL ENGINE ................................................. 18
Engine Coolant Mixture Ratio ................................ 19
ENGINE MAINTENANCE (QR20DE·QR25DE) ........ 20
Checking Drive Belts .............................................. 20
Tension Adjustment ................................................ 20Changing Engine Coolant ....................................... 20
DRAINING ENGINE COOLANT .......................... 20
REFILLING ENGINE COOLANT ......................... 21
FLUSHING COOLING SYSTEM ......................... 22
Checking Cooling System ...................................... 22
CHECKING COOLING SYSTEM HOSES ........... 22
CHECKING RADIATOR ...................................... 22
CHECKING RADIATOR CAP .............................. 22
CHECKING RADIATOR SYSTEM FOR LEAKS ... 23
Checking Fuel Lines ............................................... 23
Changing Air Cleaner Filter .................................... 23
VISCOUS PAPER TYPE ..................................... 23
Changing Engine Oil ............................................... 23
Changing Oil Filter .................................................. 25
REMOVAL ........................................................... 25
INSTALLATION ................................................... 25
INSPECTION AFTER INSTALLATION ................ 25
Checking and Changing Spark Plugs ..................... 26
REMOVAL ........................................................... 26
INSPECTION AFTER REMOVAL ....................... 26
INSTALLATION ................................................... 26
Checking EVAP Vapor Lines .................................. 26
ENGINE MAINTENANCE (YD22DDTI) .................... 27
Checking Drive Belts .............................................. 27
Tension Adjustment ................................................ 27
A/C COMPRESSOR BELT .................................. 28
ALTERNATOR AND WATER PUMP BELT .......... 28
Changing Engine Coolant ....................................... 28
DRAINING ENGINE COOLANT .......................... 28
REFILLING ENGINE COOLANT ......................... 29
FLUSHING COOLING SYSTEM ......................... 30
Checking Cooling System ...................................... 30
CHECKING COOLING SYSTEM HOSES ........... 30
CHECKING RADIATOR ...................................... 30
CHECKING RADIATOR CAP .............................. 30
CHECKING RADIATOR SYSTEM FOR LEAKS ... 31
Checking Fuel Lines ............................................... 31
Changing Fuel Filter ............................................... 31
REMOVAL ........................................................... 32
INSTALLATION ................................................... 32