2003 NISSAN X-TRAIL radiator

IDX-7
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IDX
ALPHABETICAL INDEX
P
Park/Neutral position switchEC-325
,EC-614,EC-814
Park/neutral position switch (A/T) ....................AT-130
Park/neutral position switch (M/T) .....................MT-13
PCV (positive crankcase ventilation) .EC-375,EC-650
PGC/V - Wiring diagram ..................................EC-235
PHASE - Wiring diagram ...................EC-225,EC-509
Piston assembly(QR20DE) ................................EM-85
Piston pin inspection(QR20DE) .........................EM-81
Piston pin inspection(YD22DDTi) ....................EM-197
Piston ring inspection(QR20DE) ........................EM-82
Piston ring inspection(YD22DDTi) ...................EM-201
Piston to bore clearance(QR20DE) ...................EM-85
Piston to bore clearance(YD22DDTi) ..............EM-204
PNP/SW - Wiring diagram .................EC-327,EC-815
PNPSW1 - Wiring diagram ..............................EC-615
POS - Wiring diagram ........................EC-219,EC-503
POWER - Wiring diagram ....................................PG-3
Power antenna ..................................................AV-15
Power door lock ..................................................BL-11
Power socket ...................................................WW-27
Power steering fluid level .........................PS-5,MA-41
Power steering gear ..........................................PS-12
Power steering oil pressure switch ..................EC-820
Power steering oil pump ....................................PS-23
Power steering pressure (PSP) sensor ..........EC-244,
EC-518
Power supply routing ...........................................PG-2
Power window ..................................................GW-20
Precations for Leak detection dye ...................ATC-10
PRGVLV - Wirng diagram ...............................EC-603
Propeller shaft .....................................................PR-2
Propeller shaft on vehicle service ........................PR-2
PS/SEN - Wiring diagram ..................EC-246,EC-520
PST/SW - Wiring diagram ...............................EC-821
Q
Quick-glow system ..........................................EC-796
R
R/FOG - Wiring diagram .....................................LT-37
Radiator fan - See Cooling fan(QR20DE) .........CO-13
Radiator fan - See Cooling fan(YD22DDTi) .......CO-34
Radiator(QR20DE) ...............................CO-12,CO-15
Radiator(YD22DDTi) ............................CO-33,CO-36
Radio - See Audio ...............................................AV-3
Rear air spoiler ....................................................EI-21
Rear bumper ..........................................................EI-9
Rear cover packing replacement diff. ..............RFD-10
Rear disc brake .................................................BR-27
Rear door ..............................................................BL-8
Rear fog lamp .....................................................LT-37
Rear panel finisher ..............................................EI-22
Rear seat ...........................................................SE-11
Rear seat belt ......................................................SB-4
Rear side window ...............................................GW-5
Rear suspension ...............................................RSU-5
Rear washer ....................................................WW-13
Rear window defogger ........................................GW-9
Rear wiper .......................................................WW-13
Refrigerant connection precaution .....................ATC-5
Refrigerant discharging evacuating chargingATC-123
Refrigerant general precaution ..........................ATC-4
Refrigerant lines .............................................ATC-123
Refrigerant pressure sensorEC-359,EC-634,ATC-16,
ATC-80
,ATC-137
Refrigeration cycle ...........................................ATC-16
Release bearing (clutch) ....................................CL-13
Removal and installation (A/T) .........................AT-458
Removal and installation (Transfer) ...................TF-12
Reverse idler shaft (M/T) ......................MT-19,MT-24
Reverselampswitch(M/T)-SeeBack-uplampswitch
(M/T) ..................................................................MT-13
Reverse main gear (M/T) ......................MT-19,MT-24
Rocker cover(QR20DE) ....................................EM-31
Rocker cover(YD22DDTi) ...............................EM-147
Room lamp .........................................................LT-55
Room lamp - See Interior lamp ...........................LT-55
ROOM/L - Wiring diagram ..................................LT-55
RP/SEN - Wiring diagram ..................EC-360,EC-635
RRO2 - Wiring diagram ...................................EC-588
RRO2/H - Wiring diagram ................................EC-574
S
S/LOCK - Wiring diagram .......................BL-13
,BL-27
S/SIG - Wiring diagram .......EC-349,EC-624,EC-818
SCTC/V - Wiring diagram ................................EC-774
Seat belt inspection ..........................................MA-42
Seat belt pre-tensioner disposal .....................SRS-40
Seat belt, front .....................................................SB-3
Seat belt, rear ......................................................SB-4
Seat, front ............................................................SE-7
Seat, rear ...........................................................SE-11
Self-diagnosis (Transfer) ...................................TF-45
SHIFT - Wiring diagram ...................................AT-447
Shift control components (M/T) .............MT-21,MT-26
Shift fork (M/T) ......................................MT-21,MT-26
Shift lever ...........................................................MT-14
Shift lock system ..............................................AT-446
Shift schedule ..................................................AT-563
Shift solenoid valve A (A/T) ..AT-151,AT-156,AT-170
Shift solenoid valve B (A/T) ...............AT-151,AT-156
Side air bag (satellite) sensor .........................SRS-37
Side trim ..............................................................EI-26
Side window - See Rear side window .................GW-5
Spark plug replacement(QR20DE) ...................MA-25
Spark plug(QR20DE) ........................................EM-28
Specification value .............................EC-103,EC-449
Speedometer .............................................DI-4,DI-22
Spiral cable .....................................................SRS-31
Spot lamp ............................................................LT-65
SROOF - Wiring diagram .....................................RF-3

OIL COOLER
LU-13
[QR20DE]
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OIL COOLERPFP:21305
Removal and InstallationEBS009SZ
WA RN ING:
lBe careful not to get burned when the engine and engine oil are hot.
CAUTION:
lWhen removing oil cooler, prepare a shop cloth to absorb any oil leakage or spillage.
lCompletely wipe off any oil that adhere to the engine and the vehicle.
REMOVAL
1. Remove front RH wheel and engine room right side cover.
2. Drain coolant by removing cylinder block drain plug and radiator drain cock. Refer toCO-9, "
DRAINING
ENGINE COOLANT".
3. Paint a mating mark at the oil cooler and oil cooler bracket.
INSPECTION
Oil Cooler
lCheck oil cooler for cracks. Check oil cooler for clogging by blowing through coolant inlet. If necessary,
replace oil cooler assembly.
Oil Pressure Relief Valve
lInspect oil pressure relief valve for movement, cracks and breaks by pushing the ball. If replacement is
necessary, remove valve by prying it out with a suitable tool. Install a new valve in place by tapping it.
INSTALLATION
Installation is in the reverse order of removal.
PBIC0278E
1 Oil pressure switch 2 Oil cooler bracket 3 Oil cooler
4Gasket

OIL COOLER
LU-25
[YD22DDTi]
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OIL COOLERPFP:21305
Removal and InstallationEBS00B09
CAUTION:
lBe careful not to get burned when the engine and engine oil are hot.
lWhen removing, prepare a shop cloth to absorb any oil leakage or spillage.
lCompletely wipe off any oil that abhere to the engine and the vehicle.
REMOVAL
1. Remove front RH wheel and engine side cover.
2. Remove the exhaust front tube.
3. Drain coolant by removing cylinder block drain plug and radiator drain cock.
INSPECTION
Oil Cooler
Check oil cooler for cracks. check oil cooler for clogging by blowing through coolant inlet. If necessary, replace
oil cooler assembly.
INSTALLATION
Installation is in reverse order of removal.
lConfirm that no foreign objects are adhering to the installation
planes of the oil cooler or block.
lTighten the connecting bolt after aligning the stopper on the cyl-
inder block side with protrusion of the oil cooler.
SBIA0125E
1 Oil cooler 2 O-ring 3 Water hose
4 Gasket 5 Water hose connector 6 Connecting bolt
SBIA0126E

MA-1
MAINTENANCE
L MAINTENANCE
CONTENTS
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SECTION
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MAINTENANCE
PREPARATION ........................................................... 3
Special 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 PETROL ENGINE) .................. 7
CHASSIS AND BODY MAINTENANCE
(QR20DE PETROL ENGINE) ............................... 7
ENGINE AND EMISSION CONTROL MAINTE-
NANCE (YD22DDTI DIESEL ENGINE) ................ 8
CHASSIS AND BODY MAINTENANCE
(YD22DDTI DIESEL ENGINE) .............................. 9
MAINTENANCE UNDER SEVERE DRIVING
CONDITIONS ...................................................... 10
ENGINE AND EMISSION CONTROL MAINTE-
NANCE (QR20DE PETROL ENGINE) .................11
CHASSIS AND BODY MAINTENANCE
(QR20DE PETROL ENGINE) ............................. 12
ENGINE AND EMISSION CONTROL MAINTE-
NANCE (YD22DDTI DIESEL ENGINE) .............. 13
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
DISEL ENGINE ................................................... 18
Engine Coolant Mixture Ratio ................................ 19
ENGINE MAINTENANCE (QR20DE) ....................... 20
Checking Drive Belts .............................................. 20
Changing Engine Coolant ...................................... 20
DRAINING ENGINE COOLANT ......................... 20
REFILLING ENGINE COOLANT ........................ 21
FLUSHING COOLING SYSTEM ......................... 21Checking Cooling System ...................................... 22
CHECKING COOLING SYSTEM HOSES ........... 22
CHECKING RADIATOR ...................................... 22
CHECKING RADIATOR CAP ............................. 22
CHECKING COOLING SYSTEM FOR LEAKS ... 23
Checking Fuel Lines ............................................... 23
Changing Air Cleaner Filter .................................... 23
VISCOUS PAPER TYPE ..................................... 23
Changing Engine Oil ............................................... 24
Changing Oil Filter .................................................. 24
Checking and Changing Spark Plugs ..................... 25
Checking EVAP Vapor Lines .................................. 26
ENGINE MAINTENANCE (YD22DDTI) .................... 27
Checking Drive Belts .............................................. 27
Changing Engine Coolant ....................................... 27
DRAINING ENGINE COOLANT .......................... 27
REFILLING ENGINE COOLANT ......................... 28
FLUSHING COOLING SYSTEM ......................... 29
Checking Cooling System ...................................... 29
CHECKING COOLING SYSTEM HOSES ........... 29
CHECKING RADIATOR ...................................... 29
CHECKING RADIATOR CAP .............................. 29
CHECKING COOLING SYSTEM FOR LEAKS ... 30
Checking Fuel Lines ............................................... 30
Changing Fuel Filter ............................................... 30
REMOVAL ........................................................... 30
INSTALLATION ................................................... 31
Changing Air Cleaner Filter .................................... 31
VISCCOUS PAPER TYPE .................................. 31
Changing Engine Oil ............................................... 32
Changing Oil Filter .................................................. 33
REMOVAL ........................................................... 33
INSTALLATION ................................................... 34
Draining Water ........................................................ 34
CHASSIS AND BODY MAINTENANCE ................... 35
Checking Exhaust System ...................................... 35
Checking Clutch Fluid Level and Leaks ................. 35
Checking Clutch System ........................................ 35
Checking M/T Oil .................................................... 35
Changing M/T Oil .................................................... 35

MA-4
DESCRIPTION
DESCRIPTION
PFP:00000
Pre-delivery Inspection ItemsELS000AK
Shown below are Pre-delivery Inspection Items required for the new vehicle. It is recommended that
necessary items other than those listed here be added, paying due regard to the conditions in each
country.
Perform applicable items on each model. Consult text of this section for specifications.
UNDER HOOD — engine off
Radiator coolant level and coolant hose connections for leaks
Battery fluid level, specific gravity and conditions of battery terminals
Drive belts tension
Fuel filter for water or dusts (Diesel only), and fuel lines and connections for leaks
Engine oil level and oil leaks
Clutch and brake reservoir fluid level and fluid lines for leaks
Windshield and rear window washer and headlamp cleaner reservoir fluid level
Power steering reservoir fluid level and hose connections for leaks
ON INSIDE AND OUTSIDE
Remove front spring/strut spacer (If applicable)
Operation of all instruments, gauges, lights and accessories
Operation of horn(s), wiper and washer
Steering lock for operation
Check air conditioner for gas leaks
Front and rear seats, and seat belts for operation
All moldings, trims and fittings for fit and alignment
All windows for operation and alignment
Hood, trunk lid, door panels for fit and alignment
Latches, keys and locks for operation
Weatherstrips for adhesion and fit
Headlamp aiming
Tighten wheel nuts (Inc. inner nuts if applicable)
Tire pressure (Inc. spare tire)
Check front wheels for toe-in
Install clock/voltmeter/room lamp fuse (If applicable)
Install deodorizing filter to air conditioner (If applicable)
Remove wiper blade protectors (If applicable)
UNDER BODY
Manual transmission/transaxle, transfer and differential gear oil level
Brake and fuel lines and oil/fluid reservoirs for leaks
Tighten bolts and nuts of steering linkage and gear box, suspension, propeller shafts and drive shafts
Tighten rear body bolts and nuts (Models with wooden bed only)
ROAD TEST
Clutch operation
Parking brake operation
Service brake operation
Automatic transmission/transaxle shift timing and kickdown
Steering control and returnability
Engine performance
Squeaks and rattles
ENGINE OPERATING AND HOT
Adjust idle speed
Automatic transmission/transaxle fluid level

RECOMMENDED FLUIDS AND LUBRICANTS
MA-19
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Engine Coolant Mixture RatioELS000AN
The engine cooling system is filled at the factory with a high-quality,
year-round and extended life engine coolant. The high quality engine
coolant contains the specific solutions effective for the anti-corrosion
and the anti-freeze function. Therefore, additional cooling system
additives are not necessary.
CAUTION:
lWhen adding or replacing coolant, be sure to use only Gen-
uine NISSAN Anti-freeze Coolant (L2N) or equivalent.
Because L2N is premixed type coolant.
The use of other types of engine coolant may damage your
cooling system.
lWhen checking the engine coolant mixture ratio by the coolant
hydrometer, use the chart below to correct your hydrometer reading (specific gravity) according to coolant
temperature.
Mixed coolant specific gravity
Unit: specific gravity
WA RN ING:
Never remove the radiator cap when the engine is hot. Serious burns could be caused by high pres-
sure fluid escaping from the radiator. Wait until the engine and radiator cool down.
SMA089D
Engine coolant mixture
ratioCoolant temperature°C(°F)
15 (59) 25 (77) 35 (95) 45 (113)
30% 1.046 - 1.050 1.042 - 1.046 1.038 - 1.042 1.033 - 1.038
50% 1.076 - 1.080 1.070 - 1.076 1.065 - 1.071 1.059 - 1.065

MA-20
ENGINE MAINTENANCE (QR20DE)
ENGINE MAINTENANCE (QR20DE)
PFP:00100
Checking Drive BeltsELS000AO
WAR NIN G:
Be sure to perform when the engine is stopped.
lMake sure that the stamp mark of auxiliary drive belt auto-tensioner is within the usable range.
NOTE:
lCheck the automatic tensioner indicator when the engine is cold.
lWhen the new drive belt is installed, the range should be A.
lVisually check entire belt for wear, damage or cracks.
lIf the indicator is out of allowable use range or belt is damaged, replace the belt. Refer toEM-13, "DRIVE
BELTS".
lBelt tensioning is not necessary, as it is automatically adjusted by auto tensioner.
Changing Engine CoolantELS000BX
WAR NIN G:
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.
PBIC0256E
PBIC0236E

ENGINE MAINTENANCE (QR20DE)
MA-21
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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 toMA-21,
"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