check engine NISSAN X-TRAIL 2003 Electronic Repair Manual

MA-10
PERIODIC MAINTENANCE
NOTE:
l(1) Inspect once per year.
lMaintenance items with “ ” should be performed more frequently according to “Maintenance Under Severe Driving
Conditions”.
MAINTENANCE UNDER SEVERE DRIVING CONDITIONS
(Annual Mileage <30,000 Km/year)
The maintenance intervals shown on the preceding pages are for normal operating conditions. If the vehicle is
mainly operated under severe driving conditions as shown below, more frequent maintenance must be per-
formed on the following items as shown in the table.
Severe driving conditions
A — Driving in dusty conditions
B — Repeatedly driving short distances
C — Towing a trailer or caravan
D—Extensiveidling
E — Driving in extremely adverse weather conditions or in areas where ambient temperatures are either
extremely low or extremely high
F — Driving in high humidity or mountainous areas
G — Driving in areas using salt or other corrosive materials
H — Driving on rough and/or muddy roads or in the desert
I — Driving with frequent use of braking or in mountainous areas
J — Frequent off road use or driving in water
K —Sustained high speed driving
L — For models without Euro-OBD system
Maintenance operation: Check = Check and correct or replace as necessary. Steering gear & linkage, axle & suspension
parts, propeller shaft, front drive shafts &
exhaust systemIIIIIIMA-40
,MA-41
,MA-37,MA-
42,MA-35
Wheel alignment (If necessary, rotate & bal-
ance wheels)IIIIIIFSU-6,MA-38
Brake pads, rotors & other brake compo-
nentsIIIIIIMA-40,MA-39
,MA-39
Foot brake, parking brake & clutch (For free
play, stroke & operation)IIIIIIBR-6,CL-5
Ventilation air filterRRRRRRAT C -11 4
Body corrosion See NOTE (1)MA-42
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference
page Perform either at number of kilometers
(miles) or months, whichever comes first.km x 1,000
(Miles x 1,000)
Months20
(12)
1240
(24)
2460
(36)
3680
(48)
48100
(60)
60120
(72)
72
Driving conditionMaintenance itemMainte-
nance
opera-
tionMaintenance intervalRefer-
ence
page
A...........Air cleaner filterPetrol models ReplaceEvery 30,000 km
(18,000 miles) or 24
monthsEM-16
Diesel models ReplaceEvery 30,000 km
(18,000 miles) or 18
monthsEM-112
ABCD
........Engine oil &
engine oil filterPetrol models ReplaceEvery 7,500 km (4,500
miles) or 6 monthsLU-8
,LU-
9
Diesel models ReplaceEvery 10,000 km (6,000
miles) or 6 monthsLU-19,
LU-20

PERIODIC MAINTENANCE
MA-11
C
D
E
F
G
H
I
J
K
MA
B
MA
ENGINE AND EMISSION CONTROL MAINTENANCE (QR20DE PETROL ENGINE)
(Annual Mileage >30,000 Km/year)
Abbreviations: I = Inspect and correct or replace as necessary, R = Replace,. A...E.......FuelfilterDiesel modelsCheck &
drain
waterEvery 10,000 km (6,000
miles) or 6 monthsFL-16
ReplaceEvery 20,000 km
(12,000 miles) or 12
monthsFL-15
...........LHeatedoxygen
sensor 1Petrol models InspectEvery 30,000 km
(18,000 miles) or 24
monthsEC-581
.....F......BrakefluidPetrol models ReplaceEvery 15,000 km (9,000
miles) or 12 monthsMA-39Diesel models ReplaceEvery 20,000 km
(12,000 miles) or 12
monthsMA-39
..C
....H
....Differential gear
oilPetrol models ReplaceEvery 30,000 km
(18,000 miles) or 24
monthsMA-37
Diesel models ReplaceEvery 30,000 km
(18,000 miles) or 18
monthsMA-37
..C....H....Automatic tran-
saxle fluidPetrol models ReplaceEvery 30,000 km
(18,000 miles) or 24
monthsMA-37
......GH....Steering gear &
linkage, axle &
suspension
parts, propeller
shaft, front drive
shafts & exhaust
systemPetrol models InspectEvery 7,500 km (4,500
miles) or 6 monthsMA-
40,MA-41
,MA-37
,MA-42
,MA-35
Diesel models InspectEvery 10,000 km (6,000
miles) or 6 monthsMA-
40,MA-41
,MA-37
,MA-42
,MA-35
A.C...GHI...Brake pads,
rotors & other
brake compo-
nentsPetrol models InspectEvery 7,500 km (4,500
miles) or 6 monthsMA-
40,MA-39
,MA-39
Diesel models InspectEvery 10,000 km (6,000
miles) or 6 monthsMA-40,MA-39
,MA-39
A...........Ventilation air fil-
terPetrol models ReplaceEvery 15,000 km (9,000
miles) or 12 monthsAT C -11 4Diesel models ReplaceEvery 10,000 km (6,000
miles) or 6 monthsAT C -11 4
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Refer-
ence
page Perform on a kilometer basis, but on an annual
basis when driving less than 15,000 km (9.000
miles) per yearkm x
1,000
(Miles x
1,000)
Months15
(9)30
(18)45
(27)60
(36)75
(45)90
(54)105
(63)120
(72)
Engine compartment and under vehicle
Intake and exhaust valve clearanceSee
NOTE (1)EM-40

MA-12
PERIODIC MAINTENANCE
NOTE:
lMaintenance items with “ ” should be performed more frequently according to “Maintenance Under Severe Driving
Conditions”.
l(1)Periodic maintenance is not required. However, if valve noise increases, check valve clearance.
l(2) Replace the drive belts if found damaged or if the auto belt tensioner reading reaches the maximum limit.
l(3) First replace at 90,000 Km (54,000 miles), then every 60,000 km (36,000 miles). Perform "I" (Checking the mixture ratio
and correcting the mixture ratio if necessary) at the middle of replacement interval.
l(4) Fuel filter is maintenance-free. For service procedures, refer to FL section.
l(5) Perform only according to "Maintenance Under Severe Driving conditions" for models without Euro-OBD system. For
models with Euro-OBD system, periodic maintenance is not required.
CHASSIS AND BODY MAINTENANCE (QR20DE PETROL ENGINE)
(Annual Mileage >30,000 Km/year)
Abbreviations: I = Inspect and correct or replace as necessary, R = Replace, L = Lubricate. Drive beltsSee
NOTE (2)IIIIIIIIEM-13
Engine oil (Use recommended oil.)R R RRRRRRLU-8
Engine oil filter (Use NISSAN genuine part or
equivalent)R R RRRRRRLU-9
Engine anti-freeze coolant (Use genuine NISSAN
Anti-Freeze Coolant (L2N) or equivalent.)See
NOTE (3)IRICO-9
Cooling system I I I ICO-7
Fuel linesIIFL-3
Air cleaner filterRREM-16
Fuel filter (In-tank type)See
NOTE (4)FL-4
Spark plugs R R R REM-28
EVAP vapor lines (With carbon canister) I IEC-372orEC-
647
Heated oxygen sensor 1See
NOTE (5)EC-581
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Refer-
ence
page Perform on a kilometer basis, but on an annual
basis when driving less than 15,000 km (9.000
miles) per yearkm x
1,000
(Miles x
1,000)
Months15
(9)30
(18)45
(27)60
(36)75
(45)90
(54)105
(63)120
(72)
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference
page Perform either at number of kilometers
(miles) or months, whichever comes
first.km x 1,000
(Miles x 1,000)
Months15
(9)30
(18)45
(27)60
(36)75
(45)90
(54)105
(63)120
(72)
Underhood and under vehicle
Headlamp aiming I I I ILT- 6
Brake & clutch, systems and fluid (For
level & leaks)IIIIMA-35,MA-
38
Brake fluidRRMA-39
Brake booster vacuum hoses, connec-
tions & check valveIIBR-19
Power steering fluid & lines (For level
&leaks)IIIIMA-41

PERIODIC MAINTENANCE
MA-13
C
D
E
F
G
H
I
J
K
MA
B
MA
NOTE:
l(1) Inspect once per year.
lMaintenance items with “ ” should be performed more frequently according to “Maintenance Under Severe Driving
Conditions”.
ENGINE AND EMISSION CONTROL MAINTENANCE (YD22DDTI DIESEL ENGINE)
(Annual Mileage >30,000 Km/year)
Abbreviations: I = Inspect and correct or replace as necessary, R = Replace, D = Check filter and drain water Manual transaxle gear oil (For level &
leaks)IIIIMA-35
Automatic transaxle fluid (For level &
leaks)IIIIMA-36
Transfer gear oil (For level & leaks) I I I IMA-37
Differential gear oil (For level & leaks
or replace)IRIRMA-37,MA-
37
Steering gear & linkage, axle & sus-
pension parts, propeller shaft, front
drive shafts & exhaust systemIIIIMA-41
,MA-
41,MA-37
,MA-42,
"Drive
Shaft"MA-
35,MA-42
Wheel alignment (If necessary, rotate
& balance wheels)IIIIFSU-6,MA-
38
Brake pads, rotors & other brake com-
ponentsIIIIMA-40,MA-
39,MA-39
Foot brake, parking brake & clutch (For
free play, stroke & operation)IIIIBR-6,PB-3,
CL-5
Ventilation air filterRRRRAT C -11 4
Body corrosion See NOTE (1)MA-42
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference
page Perform either at number of kilometers
(miles) or months, whichever comes
first.km x 1,000
(Miles x 1,000)
Months15
(9)30
(18)45
(27)60
(36)75
(45)90
(54)105
(63)120
(72)
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Refer-
ence page Perform either at number of kilometers (miles) or
months, whichever comes first.km x 1,000
(Miles x
1,000)
Months20
(12)40
(24)60
(36)80
(48)100
(60)120
(72)
Engine compartment and under vehicle
Intake & exhaust valve clearanceSee NOTE
(1)EM-154
Drivebelts IIIIIIEM-110
Engine oil (Use API CD, CE, CF, CF-4 oil.)See NOTE
(2)RRRRRR
LU-19
Engine oil filter (Use Eco filter or equivalent)See NOTE
(3)RRRRRRLU-20
Engine anti-freeze coolant (Use genuine Nissan Anti-
freeze coolant (L2N) or equivalent)See NOTE
(4)IRCO-30
Coolingsystem IIIIIICO-28
Fuel linesII
FL-14

MA-14
PERIODIC MAINTENANCE
NOTE:
lMaintenance items with “ ” should be performed more frequently according to “Maintenance Under Severe Driving
Conditions”.
l(1) If valve noise increases, check valve clearance.
l(2) Never use CG-4 oil.
l(3) Oil filter element assembly and O-ring seal are replacement parts.
l(4) First replace at 100,000 Km (60,000 miles), then every 60,000Km (36,000 miles). After first replacement, perform "I"
(checking the mixture ratio and correcting the mixture ratio if necessary) at the middle of replacement interval.
l(5) If engine power decreases, black exhaust smoke is emitted or engine noise increases, perform this maintenance item.
CHASSIS AND BODY MAINTENANCE (YD22DDTI DIESEL ENGINE)
(Annual Mileage >30,000 Km/year)
Abbreviations: I = Inspect and correct or replace as necessary, R = Replace, L = Lubricate. Air cleaner filterRREM-112
Fuel filterDDRDDRFL-15
Fuel injectorSee NOTE
(5)EC-727
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Refer-
ence page Perform either at number of kilometers (miles) or
months, whichever comes first.km x 1,000
(Miles x
1,000)
Months20
(12)40
(24)60
(36)80
(48)100
(60)120
(72)
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference
page Perform either at number of kilometers
(miles) or months, whichever comes first.km x 1,000
(Miles x 1,000)
Months20
(12)40
(24)60
(36)80
(48)100
(60)120
(72)
Underhood and under vehicle
Headlamp aiming I I ILT- 6
Brake & clutch, systems and fluid (For level
&leaks)IIIIIIMA-38,MA-35
Brake fluidRRMA-39
Brake booster vacuum hoses, connections
& check valveIIBR-19
Power steering fluid & lines (For level &
leaks)IIIIIIMA-41
Manual transaxle gear oil (For level & leaks) I I IMA-35,
Transfergearoil(Forlevel&leaks) IIIIIIMA-37
Differential gear oil (For level & leaks or
replace)IIRIIRMA-37
Steering gear & linkage, axle & suspension
parts, propeller shaft, front drive shafts &
exhaust systemIIMA-40,MA-41
,MA-37,MA-
42,MA-35
Wheel alignment (If necessary, rotate & bal-
ance wheels)IIIFSU-6,MA-38
Brake pads, rotors & other brake compo-
nentsIIIIIIMA-40,MA-39
,MA-39
Foot brake, parking brake & clutch (For free
play, stroke & operation)IIIIIIBR-6,CL-5
Ventilation air filterRRRRRRAT C -11 4
Body corrosion See NOTE (1)MA-42

PERIODIC MAINTENANCE
MA-15
C
D
E
F
G
H
I
J
K
MA
B
MA
NOTE:
l(1) Inspect once per year.
lMaintenance items with “ ” should be performed more frequently according to “Maintenance Under Severe Driving
Conditions”.
MAINTENANCE UNDER SEVERE DRIVING CONDITIONS
(Annual Mileage >30,000 Km/year)
The maintenance intervals shown on the preceding pages are for normal operating conditions. If the vehicle is
mainly operated under severe driving conditions as shown below, more frequent maintenance must be per-
formed on the following items as shown in the table.
Severe driving conditions
A — Driving in dusty conditions
B — Repeatedly driving short distances
C — Towing a trailer or caravan
D — Extensive idling
E — Driving in extremely adverse weather conditions or in areas where ambient temperatures are either
extremely low or extremely high
F — Driving in high humidity or mountainous areas
G — Driving in areas using salt or other corrosive materials
H — Driving on rough and/or muddy roads or in the desert
I — Driving with frequent use of braking or in mountainous areas
J — Frequent off road use or driving in water
K —Sustained high speed driving
L — For models without Euro-OBD system
Maintenance operation: Check = Check and correct or replace as necessary.
Driving conditionMaintenance itemMainte-
nance
opera-
tionMaintenance intervalRefer-
ence
page
A
...........Air cleaner filterPetrol models ReplaceEvery 30,000 km
(18,000 miles)EM-16
Diesel models ReplaceEvery 30,000 km
(18,000 miles)EM-112
ABCD
........Engine oil &
engine oil filterPetrol models ReplaceEvery 7,500 km (4,500
miles)LU-8
,LU-
9
Diesel models ReplaceEvery 10,000 km (6,000
miles)LU-19,LU-20
A...E.......FuelfilterDiesel modelsCheck &
drain
waterEvery 10,000 km (6,000
miles)FL-16
ReplaceEvery 30,000 km
(18,000 miles)FL-15
...........LHeatedoxygen
sensor 1Petrol models InspectEvery 60,000 km
(36,000 miles)EC-581
.....F......BrakefluidPetrol models ReplaceEvery 30,000 km
(18,000 miles)MA-39Diesel models ReplaceEvery 30,000 km
(18,000 miles)MA-39
..C
....H
....Differential gear
oilPetrol models ReplaceEvery 30,000 km
(18,000 miles)MA-37Diesel models ReplaceEvery 30,000 km
(18,000 miles)MA-37
..C....H....Automatic tran-
saxle fluidPetrol models ReplaceEvery 60,000 km
(36,000 miles)MA-37

RECOMMENDED FLUIDS AND LUBRICANTS
MA-19
C
D
E
F
G
H
I
J
K
MA
B
MA
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
C
D
E
F
G
H
I
J
K
MA
B
MA
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

MA-22
ENGINE MAINTENANCE (QR20DE)
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.
6. Repeat steps 1 through 5 until clear water begins to drain from radiator.
Checking Cooling SystemELS000C1
WAR NIN G:
Never remove the radiator cap when the engine is hot; serious burns could be caused by high pres-
sure fluid escaping from the radiator.
Wrap a thick cloth around the cap and carefully remove it by turning it a quarter turn to allow built-up
pressure to escape and then turn the cap all the way off.
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.
lBe careful not to bend or damage the radiator fins.
lWhen 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 downward.
2. Apply water again to all radiator core surfaces 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 downward.
lUsecompressedairlowerthan490kPa(5kg/cm2, 71 psi) and keep distance more than 30 cm (11.8
in).
5. Blow air again into all the radiator core surfaces once per minute until no water sprays out.
CHECKING RADIATOR CAP
1. Pull the negative pressure valve to open it and check that it
close completely when released.
lCheck that there is no dirt or damage on the valve seat of the
radiator cap negative-pressure valve.
lCheck that there are no abnormalities in the opening and closing
conditions of the negative-pressure valve.
2. Check radiator cap relief pressure.
lWhen connecting the radiator cap to the tester, apply engine
coolant to the cap seal part.
lReplace the radiator cap if there is an abnormality in the nega-
tive-pressure valve, or if the open-valve pressure is outside of
the standard values.
SMA967B
Standard:
78-98kPa(0.78-0.98bar,0.8-1.0kg/cm
2, 11- 14 psi)
Limit:
59 kPa (0.59 bar, 0.6 kg/cm
2,9psi)
SLC755AC