2003 NISSAN X-TRAIL radiator

ENGINE MAINTENANCE (YD22DDTI)
MA-29
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3. Remove air relief plug.
4. Open cylinder block drain plug. Refer to EM-212, "
CYLINDER BLOCK" .
5. Remove reservoir tank, drain engine coolant, then clean reservoir tank.
6. Check drained engine coolant for contaminants such as rust, corrosion or discoloration.
If contaminated, flush engine cooling system. Refer to CO-33, "
FLUSHING COOLING SYSTEM" .
REFILLING ENGINE COOLANT
1. Install reservoir tank, and radiator drain plug.
CAUTION:
Be sure to clean radiator drain plug and install with new O-ring.

If water drain plug on cylinder block is removed, close and tighten it. Refer to EM-82, "CYLIN-
DER BLOCK" .
2. Fill radiator and reservoir tank to specified level.

Pour engine coolant through engine coolant filler neck
slowly of less than 2 (1-3/4 lmp qt) a minute to allow air
in system to escape.

Use Genuine Nissan Anti-freeze Coolant or equivalent
mixed with water (distilled or demineralized). Refer to
MA-17, "
RECOMMENDED FLUIDS AND LUBRICANTS".

When engine coolant overflows air relief hole, install air relief
plug with new copper washer.
3. Warm up engine to normal operating temperature without radiator cap installed.

If engine coolant overflows radiator filler hole, install radiator cap.
4. Run engine at 3,000 rpm for 10 seconds and return to idle speed with radiator cap installed.

Repeat two or three times.
CAUTION:
Watch engine coolant temperature gauge so as not to overheat the engine.
5. Stop engine and cool down to less than approximately 50°C(122°F).

Cool down using a fan to reduce the time.

If necessary, refill radiator up to filler neck with engine coolant.
6. Refill reservoir tank to MAX level line with engine coolant.
SBIA0130E
Engine coolant capacity
(with reservoir tank at “MAX” level)
: Approx. 9.5 (8-3/8 lmp qt)
SMA182B
Reservoir tank capacity (at “MAX” level)
: 0.6 (1/2 lmp qt)
Air relief plug:
: 6.9 - 7.8 N·m (0.7 - 0.8 kg-m, 61 - 69 in-lb)
SMA412B

MA-30
ENGINE MAINTENANCE (YD22DDTI)

7. Repeat steps 2 through 5 two or more times with radiator cap installed until engine coolant level no longer
drops.
8. Check cooling system for leaks with engine running.
9. Warm up engine, and check for sound of engine coolant flow while running engine from idle up to 3,000
rpm with heater temperature controller set at several position between COOL and WARM.

Sound may be noticeable at heater unit.
10. Repeat step 9 three times.
11. If sound is heard, bleed air from cooling system by repeating steps 2 through 5 until engine coolant level
no longer drops.

Clean excess engine coolant from engine.
FLUSHING COOLING SYSTEM
1. Fill radiator with water until water spills from the air relief hole, then close air relief flag. Fill radiator and
reservoir tank with water and reinstall radiator cap.
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 from the system. Refer to MA-28, "
DRAINING ENGINE COOLANT" .
6. Repeat steps 1 through 5 until clear water begins to drain from radiator.
Checking Cooling SystemELS000C4
WARNING:
Never remove the radiator cap when the engine is hot. Serious burns could occur from high pressure
engine 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.
CHECKING COOLING SYSTEM HOSES
Check hoses for improper attachment, leaks, cracks, damage, loose connections, chafing and deterioration.
CHECKING RADIATOR
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.
CHECKING RADIATOR CAP
1. Pull negative-pressure valve to open it and make sure that it
closes completely 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.
SMA967B

ENGINE MAINTENANCE (YD22DDTI)
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2. Check radiator cap relief pressure.

When connecting radiator cap to radiator cap tester (commer-
cial service tool) and radiator cap tester adapter (special ser-
vice tool), apply engine coolant to the cap seal surface.

Replace radiator cap if there is an unusualness in negative-
pressure valve, or if the relief pressure exceed the limit.
CHECKING RADIATOR SYSTEM FOR LEAKS

To check for leaks, apply pressure to the cooling system with
radiator cap tester (commercial service tool) and radiator cap
tester adapter (special service tool).
WARNING:
Never remove the radiator cap when the engine is hot. Seri-
ous burns could occur from high pressure engine coolant
escaping from the 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.
Checking Fuel LinesELS000CE
Inspect fuel lines, filler cap and tank for improper attachment, leaks,
cracks, damage, loose connections, chafing or deterioration.
If necessary, repair or replace faulty parts.
Changing Fuel FilterELS000CF
Standard:
78 - 98 kPa (0.78 - 0.98 bar, 0.8 - 1.0 kg/cm
2 , 11 - 14 psi)
Limit:
59 kPa (0.59 bar, 0.6 kg/cm
2 , 9 psi)
SLC135B
Testing pressure:
157 kPa (1.57 bar, 1.6 kg/cm
2 , 23 psi)
SLC134B
SMA803A
PBIC2501E

CHASSIS AND BODY MAINTENANCE
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6. Check fluid condition.

If fluid is very dark or smells burned, refer to AT section for
checking operation of A/T. Flush cooling system after repair of
A/T.

If A/T fluid contains frictional material (clutches, bands, etc.),
replace radiator and flush cooler line using cleaning solvent
and compressed air after repair of A/T. Refer to CO-12,
"RADIATOR" , CO-14, "RADIATOR (ALUMINUM TYPE)" .
7. Install the removed dipstick in the A/T fluid charging pipe.
Changing A/T FluidELS000BW
1. Warm up A/T fluid.
2. Stop engine.
3. Drain A/T fluid from drain plug and refill with new A/T fluid.
Always refill same volume with drained fluid.
4. Run engine at idle speed for five minutes.
5. Check fluid level and condition. Refer to MA-38, "
Checking A/T Fluid" . If fluid is still dirty, repeat steps 2
through 5.
Checking Transfer OilELS000BT
Check for oil leakage and oil level.
CAUTION:
Never start engine while checking oil level.
Changing Transfer OilELS000BU
1. Drain oil from drain plug and refill with new gear oil.
SMA853B
Fluid grade:
Genuine Nissan ATF or equivalent. Refer to MA-
17, "RECOMMENDED FLUIDS AND LUBRI-
CANTS" .
Fluid capacity (With torque converter):
Approx. 8.5 (7-1/2 lmp qt)
Drain plug:
: 34 N·m (3.5 kg-m, 25 ft-lb)
SMA052D
Filler plug:
: 9.8 - 19.6 N·m (1.0 - 1.9 kg-m, 87 - 173 in-lb)
SDIA0513E

SERVICE DATA AND SPECIFICATIONS (SDS)
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SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Standard and LimitELS000K3
BELT DEFLECTION AND TENSION
QR20DE and QR25DE
YD22DDTi
*: When engine is cold.
RADIATOR
Unit: kPa (bar, kg/cm2 , psi)
ENGINE COOLANT CAPACITY
QR20DE and QR25DE
Unit: (lmp qt)
YD22DDTi
Unit: (lmp qt)
ENGINE OIL CAPACITY (APPROXIMATE)
QR20DE and QR25DE
Unit: (lmp qt)
YD22DDTi
Unit: (lmp qt)
SPARK PLUG
QR20DE and QR25DE
Tensions of drive belts Auto-adjustment by auto-tensioner
Applied beltBelt deflection with 98 N (10 kg, 22 lb) force applied* mm (in)
New Adjusted Limit for re-adjusting
A/C compressor belt 4 - 5 (0.16 - 0.20) 6 - 7 (0.24 - 0.28) 8.5 (0.335)
Alternator and water pump belt 9.0 - 10.5 (0.354 - 0.413) 11.0 - 12.5 (0.433 - 0.492) 16.5 (0.650)
Cap relief pressureStandard 78 - 98 (0.78 - 0.98, 0.8 - 1.0, 11 - 14)
Limit 59 (0.59, 0.6, 9)
Leakage test pressure 157 (1.57, 1.6, 23)
Coolant capacity (With reservoir tank at “MAX” level) 7.1 (6-1/4)
Reservoir tank coolant capacity (At “MAX” level) 0.6 (1/2)
Coolant capacity (With reservoir tank at “MAX” level) 9.5 (8-3/8)
Reservoir tank coolant capacity (At “MAX” level) 0.6 (1/2)
Drain and refill With oil filter change 3.9 (3-3/8)
Without oil filter change 3.5 (3-1/8)
Dry engine (Overhaul)4.5 (4)
Drain and refill With oil filter change 5.2 (4-5/8)
Without oil filter change 4.9 (4-3/8)
Dry engine (Overhaul)6.3 (5-1/2)
MakeNGK
Standard typeLFR5A-11
Hot typeLFR4A-11
Cold typeLFR6A-11
Spark plug gap mm (in) 1.0 - 1.1 (0.039 - 0.043)

MTC-20
TROUBLE DIAGNOSIS

*1 QR engine; CO-9, "Changing Engine
Coolant" or YD engine; CO-31,
"Changing Engine Coolant" .*2 QR engine; CO-13, "
Checking Radi-
ator Cap" or YD engine; CO-35,
"Checking Radiator Cap" .*3 QR engine; (WITH EURO-OBD) EC-
162, "DTC P0117, P0118 ECT SEN-
SOR" .
QR engine; (WITHOUT 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" .
*4 QR engine; CO-9, "
Changing Engine
Coolant" or YD engine; CO-31,
"Changing Engine Coolant" .*5 MTC-7, "
Operational Check" .*6MTC-3, "SYMPTOM TABLE".

MTC-28
HEATER UNIT

8. Remove steering member.
NOTE:
This illustration is for RHD models. The layout for LHD models is symmetrically opposite.
9. Remove heater unit.
INSTALLATION
Installation is basically the reverse order of removal.
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.
RJIA2404E

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IDX
ALPHABETICAL INDEX
Park/neutral position switch (A/T) .................... AT-100
Park/neutral position switch (M/T) ..................... MT-13
PCV (positive crankcase ventilation) . EC-478, EC-870
PGC/V - Wiring diagram .................................. EC-267
PHASE - Wiring diagram ................... EC-255, EC-648
Pilot bushing replacement - See Pilot
converter(QR20DEQR25DE) ........................... EM-82
Piston assembly(QR20DEQR25DE) .............. EM-103
Piston pin inspection(QR20DEQR25DE) ......... EM-99
Piston pin inspection(YD22DDTi) .................... EM-222
Piston ring inspection(QR20DEQR25DE) ...... EM-100
Piston ring inspection(YD22DDTi) ................... EM-227
Piston to bore clearance(QR20DEQR25DE) . EM-103
Piston to bore clearance(YD22DDTi) .............. EM-230
PNP/SW - Wiring diagram EC-375, EC-727, EC-1183,
EC-1480
PNPSW1 - Wiring diagram .............................. EC-817
POS - Wiring diagram ........................ EC-248, EC-640
POWER - Wiring diagram .................................... PG-3
Power antenna .................................................. AV-41
Power door lock .................................................. BL-22
Power seat ......................................................... SE-10
Power socket ................................................... WW-29
Power steering fluid level ......................... PS-6, MA-44
Power steering gear .......................................... PS-13
Power steering oil pressure switch EC-1186, EC-1483
Power steering oil pump .................................... PS-24
Power steering pressure (PSP) sensor .......... EC-274,
EC-656
Power supply routing ........................................... PG-2
Power window .................................................. GW-40
Precations for Leak detection dye ................... ATC-12
Precautions (General) .......................................... GI-4
Pre-delivery inspection ........................................ MA-4
Pressure plate - See Clutch cover ..................... CL-14
PRGVLV - Wirng diagram ............................... EC-810
Propeller shaft ..................................................... PR-3
Propeller shaft on vehicle service ........................ PR-3
PS/SEN - Wiring diagram .................. EC-275, EC-657
PST/SW - Wiring diagram ............. EC-1187, EC-1484
Q
Quick-glow system ........................ EC-1169
, EC-1457
R
R/FOG - Wiring diagram ..................................... LT-56
Radiator(QR20DEQR25DE) ................ CO-12, CO-14
Radiator(YD22DDTi) ............................ CO-34, CO-38
Radio - See Audio ............................................... AV-4
Rear air spoiler .................................................... EI-30
Rear bumper ........................................................ EI-17
Rear disc brake ................................................. BR-32
Rear door ............................................................ BL-18
Rear fog lamp ..................................................... LT-56
Rear panel finisher .............................................. EI-31
Rear seat ........................................................... SE-31
Rear seat belt ...................................................... SB-4
Rear side window ............................................. GW-13
Rear suspension ............................................... RSU-5
Rear washer .................................................... WW-14
Rear window defogger ...................................... GW-17
Rear wiper ....................................................... WW-14
Refrigerant connection precaution ..................... ATC-5
Refrigerant discharging evacuating charging ATC-141
Refrigerant general precaution .......................... ATC-5
Refrigerant lines ............................................. ATC-141
Refrigerant pressure sensor EC-451, EC-843, ATC-18,
ATC-94
, ATC-157
Refrigeration cycle ........................................... ATC-18
Release bearing (clutch) .................................... CL-12
Removal and installation (A/T) ......................... AT-413
Removal and installation (Transfer) ................... TF-55
Reverse idler shaft (M/T) ...................... MT-20, MT-25
Reverse lamp switch (M/T) - See Back-up lamp switch
(M/T) .................................................................. MT-13
Reverse main gear (M/T) ...................... MT-20, MT-25
Rocker cover(QR20DEQR25DE) .................... EM-42
Rocker cover(YD22DDTi) ............................... EM-168
Room lamp ......................................................... LT-76
Room lamp - See Interior lamp ........................... LT-76
ROOM/L - Wiring diagram .................................. LT-76
RP/SEN - Wiring diagram .................. EC-452, EC-844
RRO2 - Wiring diagram ..................... EC-777, EC-793
S
S/LOCK - Wiring diagram ....................... BL-24
, BL-45
S/SIG - Wiring diagram .................. EC-1199, EC-1496
SCTC/V - Wiring diagram ............. EC-1095, EC-1129,
EC-1136
, EC-1141, EC-1146, EC-1384, EC-1418,
EC-1424
, EC-1429, EC-1434
SEAT - Wiring diagram ...................................... SE-11
Seat belt inspection .......................................... MA-45
Seat belt pre-tensioner disposal ..................... SRS-42
Seat belt, front ..................................................... SB-3
Seat belt, rear ...................................................... SB-4
Seat, front .......................................................... SE-24
Seat, rear ........................................................... SE-31
Self-diagnosis (Transfer) ................................... TF-30
SEN/PW - Wiring diagram ................. EC-369, EC-721
Sheft warning system ...................................... BL-104
SHIFT - Wiring diagram ................................... AT-399
Shift control components (M/T) ............. MT-22, MT-27
Shift fork (M/T) ...................................... MT-22, MT-27
Shift lever ........................................................... MT-14
Shift lock system .............................................. AT-398
Shift schedule .................................................. AT-530
Shift solenoid valve A (A/T) ............................. AT-128
Shift solenoid valve B (A/T) ............................. AT-128
Side air bag (satellite) sensor ......................... SRS-39
Side window - See Rear side window ............... GW-13
Spark plug replacement(QR20DEQR25DE) ... MA-26
Spark plug(QR20DEQR25DE) ........................ EM-30
Specification value ............................. EC-119, EC-566
Speedometer ........................................................ DI-4
Spiral cable ..................................................... SRS-33