Engine cooling system NISSAN X-TRAIL 2005 Service Manual Online

ENGINE MAINTENANCE (YD22DDTI)
MA-31
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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.
If contaminated, flush engine cooling system. Refer to MA-32, "
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-235, "ASSEM-
BLY" .
2. Remove air relief plug.
3. Fill radiator and reservoir tank to the 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.
4. Install radiator cap.
5. Warm up until opening thermostat and water control valve. Standard for warming-up time is approximately
10 minutes at 3,000 rpm.

Make sure thermostat opening condition by touching radiator hose (lower) to see a flow of warm water.
CAUTION:
Watch water temperature gauge so as not to overheat engine.
6. 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.
PBIC3608E
Engine coolant capacity
(with reservoir tank at “MAX” level)
: Approx. 9.5 (8-3/8 lmp qt)
SMA182B
Reservoir tank capacity (at “MAX” level)
: 0.7 (5/8 lmp qt)
Air relief plug
: 7.4 N·m (0.75 kg-m, 65 in-lb)
SMA412B

MA-32
ENGINE MAINTENANCE (YD22DDTI)

7. Refill reservoir tank to “MAX” level line with engine coolant.
8. Repeat steps 3 through 6 two or more times with radiator cap installed until engine coolant level no longer
drops.
9. Check cooling system for leaks with engine running.
10. 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.
11. Repeat step 10 three times.
12. If sound is heard, bleed air from cooling system by repeating steps 3 through 6 until engine coolant level
no longer drops.
FLUSHING COOLING SYSTEM
1. Install reservoir tank if removed, and radiator drain plug.
CAUTION:
Be sure to clean drain plug and install with new O-ring.

If water drain plug on cylinder block is removed, close and tighten it. Refer to EM-235, "ASSEM-
BLY" .
2. Fill radiator with water until water spills from the air relief hole, then close air relief plug. Fill radiator and
reservoir tank with water and reinstall radiator cap.
3. Run engine and warm it up to normal operating temperature.
4. Rev engine two or three times under no-load.
5. Stop engine and wait until it cools down.
6. Drain water from the system. Refer toMA-30, "
DRAINING ENGINE COOLANT" .
7. Repeat steps 1 through 6 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.

ENGINE MAINTENANCE (YD22DDTI)
MA-33
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CHECKING RADIATOR CAP

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 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.
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
Testing pressure:
157 kPa (1.57 bar, 1.6 kg/cm
2 , 23 psi)
SLC134B

CHASSIS AND BODY MAINTENANCE
MA-41
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d. Remove A/T fluid level gauge and wipe clean lint-free paper.
CAUTION:
When wiping away the A/T fluid level gauge, always use lint-free paper, not cloth one.
e. Re-insert A/T fluid level gauge into charging pipe as far as it will go.
CAUTION:
To check fluid level, insert the A/T fluid level gauge until the cap contacts the end of the A/T fluid
charging pipe, with the A/T fluid level gauge reversed from the normal attachment conditions.
f. Remove A/T fluid level gauge and note reading. If reading is at low side of range, add fluid to the A/T fluid
charging pipe.
CAUTION:
Do not overfill.
4. Drive vehicle for approximately 5 minutes in urban areas.
5. Re-check fluid level at fluid temperatures of 50 to 80°C (122 to 176°F) using “HOT” range on A/T fluid
level gauge.
CAUTION:

When wiping away the A/T fluid level gauge, always use lint-free paper, not cloth one.

To check fluid level, insert the A/T fluid level gauge until the cap contacts the end of the A/T fluid
charging pipe, with the A/T fluid level gauge reversed from the normal attachment conditions.
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-15, "RADIATOR (ALUMINUM TYPE)" .
7. Install the removed A/T fluid level gauge 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-40, "
Checking A/T Fluid" . If fluid is still dirty, repeat steps 2
through 5.
Checking Transfer OilELS000BT
Check for oil leakage and oil level.
(For details, refer to TF-10, "
Inspection" .)
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

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IDX
ALPHABETICAL INDEX
EC-1641
Basic inspection .. EC-79, EC-578, EC-1012, EC-1382
Battery ................................................................. SC-4
Baulk ring (M/T) .................................... MT-23, MT-41
Blower motor .... ATC-82, ATC-87, ATC-127, MTC-15,
MTC-18
, MTC-24
Blower resistor ................................................ MTC-25
Blower unit ....................... ATC-125, MTC-22, MTC-24
BOOST - Wiring diagram ............... EC-1153, EC-1508
Boring/horning cylinder block(QR20DE-QR25DE) .......
EM-111
Brake booster .................................................... BR-23
Brake fluid change ............................................... BR-8
Brake fluid level ................................................. MA-44
Brake fluid level and line check ........................... BR-8
Brake hydraulic line ........................................... BR-10
Brake inspection ................................................ MA-44
Brake lines and cables inspection ..................... MA-44
Brake master cylinder ........................................ BR-14
Brake pedal ......................................................... BR-6
Brake switch ..... EC-405, EC-809, EC-1313, EC-1664
BRK/SW - Wiring diagram EC-406, EC-811, EC-1314,
EC-1665
Bulb specifications ............................................ LT-152
Bumper, front ....................................................... EI-14
Bumper, rear ........................................................ EI-17
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Camshaft inspection(QR20DE-QR25DE) .......... EM-58
Camshaft inspection(YD22DDTi) .................... EM-181
Camshaft position sensor (CMPS) EC-1169, EC-1175,
EC-1525
, EC-1531
Camshaft position sensor (PHASE) .. EC-257, EC-701
Camshaft(QR20DE-QR25DE) ........................... EM-56
Camshaft(YD22DDTi) ...................................... EM-180
CAN - Wiring diagram ....... EC-134, EC-634, EC-1057,
EC-1426
, LAN-12, LAN-28, LAN-44, LAN-69, LAN-87,
LAN-105
, LAN-131, LAN-144, LAN-157
CAN (Controller Area Network) ........ LAN-11, LAN-27,
LAN-43
, LAN-68, LAN-86, LAN-104, LAN-130,
LAN-143
, LAN-156
CAN communication EC-39, EC-133, EC-552, EC-633,
EC-989
, EC-1056, EC-1365, EC-1425, AT-32, AT-97,
AT-329
, TF-45, LAN-11, LAN-27, LAN-43, LAN-68,
LAN-86
, LAN-104, LAN-130, LAN-143, LAN-156
Canister-See EVAP canister ............. EC-525, EC-965
CHARGE - Wiring diagram .................... SC-14, SC-15
Charging system ................................................ SC-13
Chassis and body maintenance ........................ MA-39
CHIME - Wiring diagram ................ DI-54, DI-57, DI-58
CIGAR - Wiring diagram .................................. WW-29
Cigarette lighter ............................................... WW-29
Circuit breaker ................................................... PG-12
CKPS - Wiring diagram EC-1059, EC-1158, EC-1164,
EC-1428
, EC-1513, EC-1520
Clearance lamp ................................................ LT-116
Clock ................................................................... DI-63
CLOCK - Wiring diagram .................................... DI-63
Closed loop control .............................. EC-36, EC-549
Clutch cover ....................................................... CL-16
Clutch disc ......................................................... CL-16
Clutch master cylinder ......................................... CL-9
Clutch operating cylinder ................................... CL-12
Clutch pedal ......................................................... CL-5
Clutch release bearing ....................................... CL-14
Clutch release mechanism ................................ CL-14
Clutch withdrawal lever ...................................... CL-14
CMPS - Wiring diagram EC-1059, EC-1170, EC-1176,
EC-1428
, EC-1526, EC-1532
Coil spring (rear) ............................................... RSU-8
Collision diagnosis .......................................... SRS-48
Combination meter ............................................... DI-4
Combination switch ............................................. LT-96
Component Location (auto A/C) ......... ATC-35, MTC-4
Compression pressure(QR20DE-QR25DE) ..... EM-70
Compression pressure(YD22DDTi) ................ EM-209
Compressor clutch removal and installation .. ATC-146
Compressor special service tool ...................... ATC-14
Condenser ..................................................... ATC-155
Connecting rod bearing clearance(QR20DE-QR25DE)
EM-109
Connecting rod bearing clearance(YD22DDTi) EM-252
Connecting rod bushing clearance(YD22DDTi) EM-246
Connecting rod(QR20DE-QR25DE) ............... EM-109
Connecting rod(YD22DDTi) .............. EM-242, EM-248
CONSULT for engine ......................... EC-103, EC-604
CONSULT-II for engine ................. EC-1034, EC-1405
Control lever (M/T) ............................................. MT-16
Control unit ..................................... ATC-120, MTC-21
Control units (terminal arrangement) ................. PG-76
Controller Area Network (CAN) ........ LAN-11, LAN-27,
LAN-43
, LAN-68, LAN-86, LAN-104, LAN-130,
LAN-143
, LAN-156
Converter housing installation ......................... AT-523
COOL/F - Wiring diagram EC-356, EC-759, EC-1127,
EC-1483
Coolant replacement(QR20DE-QR25DE) ........ MA-20
Coolant replacement(YD22DDTi) ..................... MA-30
Cooling circuit (engine)(QR20DE-QR25DE) ....... CO-7
Cooling circuit (engine)(YD22DDTi) ................. CO-30
Cooling fan ............................................ CO-19, CO-37
Cooling fan relay EC-367, EC-770, EC-1137, EC-1492
Coupling sleeve (M/T) ........................... MT-23, MT-41
Cowl top .............................................................. EI-20
Cowl top cover .................................................... EI-20
Crankcase ventilation system .......... EC-989, EC-1365
Crankcase ventilation system - See Positive crankcase
ventilation ........................................... EC-527
, EC-967
Crankshaft position sensor (POS) ..... EC-250, EC-693
Crankshaft position sensor (TDC) EC-1157, EC-1163,
EC-1512
, EC-1518
Crankshaft(QR20DE-QR25DE) ........................ EM-90
Cylinder block boring(QR20DE-QR25DE) ...... EM-112
Cylinder block boring(YD22DDTi) ................... EM-250
Cylinder block(QR20DE-QR25DE) ................... EM-89
Cylinder block(YD22DDTi) .............................. EM-230
Cylinder head bolt tightening(QR20DE-QR25DE) ........

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ALPHABETICAL INDEX
Fork rod (M/T) ....................................... MT-25, MT-43
Freeze frame data EC-56, EC-566, EC-999, EC-1373
FRO2 - Wiring diagram ...................... EC-847, EC-862
Front bumper ....................................................... EI-14
Front disc brake ................................................. BR-27
Front door ........................................................... BL-18
Front Door Trim ................................................... EI-32
Front fog lamp .................................................. LT-108
Front passenger air bag .................................. SRS-35
Front seat .......................................................... SE-24
Front seat belt ...................................................... SB-3
Front seat belt pre-tensioner .... SB-2, SRS-3, SRS-40
Front side air bag ............................................. SRS-37
Front suspension ............................................... FSU-5
Front washer ...................................................... WW-4
Front wiper ......................................................... WW-4
FRPS - Wiring diagram .................. EC-1111, EC-1467
FTS - Wiring diagram .................... EC-1107, EC-1463
FUEL - Wiring diagram ...................... EC-221, EC-227
Fuel check valve ................................ EC-522, EC-962
Fuel cut control (at no load high engine speed) EC-38,
EC-551
, EC-988, EC-1364
Fuel filler lid ...................................................... BL-103
Fuel filter .......................................... EC-994, EC-1370
Fuel filter replacement(QR20DE-QR25DE) .......... FL-4
Fuel filter replacement(YD22DDTi) ....... FL-17, MA-34
Fuel gauge ............................................................ DI-4
Fuel injection control system ........... EC-986, EC-1362
Fuel injection system ......................... EC-219, EC-225
Fuel injector adjustment resistor .... EC-1251, EC-1590
Fuel injector and fuel tube(QR20DE-QR25DE) . EM-34
Fuel injector and fuel tube(YD22DDTi) ............ EM-167
Fuel line inspection(QR20DE-QR25DE) . FL-3, MA-24
Fuel line inspection(YD22DDTi) ............ FL-16, MA-34
Fuel pressure check ............................ EC-49, EC-562
Fuel pressure release .......................... EC-49, EC-562
Fuel pump .......... EC-466, EC-906, EC-994, EC-1263,
EC-1602
Fuel pump and gauge(QR20DE-QR25DE) .......... FL-4
Fuel rail pressure sensor ............... EC-1110, EC-1466
Fuel system(QR20DE-QR25DE) .......................... FL-3
Fuel system(YD22DDTi) ..................................... FL-16
Fuel tank(QR20DE-QR25DE) ............................ FL-11
Fuel tank(YD22DDTi) ......................................... FL-23
Fuel temperature sensor ............... EC-1106, EC-1462
Fuse ................................................................... PG-12
Fuse and fusible link box ................................... PG-80
Fusible link ......................................................... PG-12
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Gauges ................................................................. DI-4
Gear components (M/T) ....................... MT-23, MT-41
Generator .......................................................... SC-13
Generator - See Alternator ................................ SC-13
Generic scan tool (GST) .................. EC-113, EC-1040
Glass .................................................. GW-80, GW-83
GLOW - Wiring diagram EC-1183, EC-1306, EC-1644
Glow plug ....................................... EC-1305, EC-1643
Glow plug(YD22DDTi) .................................... EM-162
Glow relay ..................... EC-1182, EC-1305, EC-1643
Grille - See Exterior ............................................ EI-19
Ground distribution ............................................ PG-13
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H/LAMP - Wiring diagram ......................... LT-9
, LT-28
H/MIRROR - Wiring diagram ............................ GW-21
Harness connector ............................................. PG-74
Harness layout ................................................... PG-32
Headlamp ............................................................. LT-5
Headlamp aiming control .................................... LT-66
Headlamp washer ............................................ WW-20
Headlining - See Roof trim .................................. EI-39
Heated oxygen sensor 1 .... EC-179, EC-186, EC-196,
EC-322
, EC-328, EC-666, EC-673, EC-861
Heated oxygen sensor 1 heater ......... EC-139, EC-846
Heated oxygen sensor 2 .... EC-204, EC-211, EC-334,
EC-342
, EC-867
Heated oxygen sensor 2 heater ......... EC-145, EC-851
Heated seat ........................................... SE-18, SE-21
HEATER - Wiring diagram ................................ MTC-6
Heater and cooling unit (Heater core) ............ ATC-131
Heater mirror ..................................................... GW-21
Heater system - Wiring diagram ....................... MTC-6
Heater unit (heater core) .. ATC-136, MTC-27, MTC-30
HFC134a (R134a) system precaution ............... ATC-4
HFC134a (R134a) system service procedure ATC-141
HFC134a (R134a) system service tools .......... ATC-15
HFC134a system service equipment precaution ..........
ATC-10
HO2S1 - Wiring diaram ...... EC-181, EC-189, EC-199,
EC-668
, EC-675
HO2S1H - Wiring diagram ............................... EC-141
HO2S2 - Wiring diagram .... EC-206, EC-214, EC-337,
EC-345
HO2S2H - Wiring diagram ............................... EC-147
Hood .................................................................. BL-12
Horn ................................................................. WW-27
HORN - Wiring diagram ................................... WW-27
How to erase DTC ........................... EC-566, EC-1372
How to erase DTC for OBD system ..... EC-63, EC-999
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IATS - Wiring diagram .... EC-161
, EC-1089, EC-1445
IATSEN - Wiring diagram ................................ EC-857
Identification ...................................... ATC-12, ATC-13
Idle air volume learning ........................ EC-47, EC-560
Idle speed ........... EC-79, EC-578, EC-1012, EC-1382
Ignition coil ......................................... EC-440, EC-873
Ignition coil(QR20DE-QR25DE) ....................... EM-31
Ignition control system ....................... EC-440, EC-873
Ignition timing ....................................... EC-79, EC-578
IGNSYS - Wiring diagram .................. EC-441, EC-874
ILL - Wiring diagram ......................................... LT-122
Illumination ........................................................ LT-122
In vehicle sensor ........... ATC-111, ATC-113, ATC-122