2006 NISSAN X-TRAIL engine oil

switch is turned to ON. It turns off soon after the
engine is started.
If any malfunction occurs in the 4WD system
when the key switch is ON, the warning light will
either remain illuminated or blink.
High-temperature power-train oil makes the
warning light blink rapidly (about twice per sec-
ond). The driving mode will change to 2WD.
AUTO mode may change to LOCK mode before
the warning light blinks. This is normal. If the
warning light blinks rapidly during operation,
stop the vehicle in a safe place immediately.
Then if the light goes off after a while, you can
continue driving.
A large difference between the diameters of
front and rear wheels will make the warning light
blink slowly (about once per two seconds). Pull
off the road in a safe area, and idle the engine.
Check that all tire sizes are the same, tire
pressure is correct and tires are not worn.
Change the 4WD mode switch into 2WD and
do not drive fast.
WARNING
Do not attempt to test a 4WD equipped
vehicle with two wheels on a two wheeldynamometer and the other two wheels
raised. Doing so may result in transmis-
sion damage or unexpected vehicle
movement which could result in serious
vehicle damage or personal injury.
CAUTION

If the 4WD warning light comes on
while driving, AUTO or LOCK mode
will be changed to two-wheel drive
condition. Reduce the vehicle speed
and be especially careful when driv-
ing. Have your vehicle checked by a
NISSAN dealer as soon as possible.

Never drive on dry hard surface roads
in the LOCK mode, as this will over-
load the power-train and may cause a
serious malfunction.

The power-train may be damaged if
you continue driving with the warning
light blinking rapidly.
5-22
Starting and driving


06.4.14/T30-J/V5.0


8 Maintenance and do-it-yourselfMaintenance requirements ................................................. 8-2
Scheduled maintenance ............................................... 8-2
General maintenance ..................................................... 8-2
Where to go for service ................................................ 8-2
General maintenance ........................................................... 8-2
Explanation of general maintenance items ............... 8-2
Maintenance precautions .............................................. 8-5
Engine compartment check locations ............................. 8-7
Engine cooling system ........................................................ 8-8
Checking engine coolant level .................................... 8-8
Changing engine coolant ............................................. 8-9
Engine oil ............................................................................. 8-10
Checking engine oil level ........................................... 8-10
Changing engine oil .................................................... 8-11
Changing engine oil filter ........................................... 8-12
Automatic transmission fluid ........................................... 8-13
Power steering fluid .......................................................... 8-14
Brake and clutch fluid ....................................................... 8-14
Window washer fluid ........................................................ 8-15
Battery ................................................................................... 8-16
Jump starting ................................................................. 8-17
Drive belts ............................................................................ 8-17
Spark plugs ......................................................................... 8-18Replacing spark plugs ................................................ 8-18
Air cleaner ............................................................................ 8-18
Windshield wiper blades ................................................. 8-19
Cleaning ......................................................................... 8-19
Replacing ....................................................................... 8-20
Parking brake and brake pedal ...................................... 8-21
Checking parking brake ............................................. 8-21
Checking brake pedal ................................................. 8-21
Brake booster ................................................................ 8-22
Fuses ..................................................................................... 8-22
Engine compartment ................................................... 8-23
Passenger compartment ............................................ 8-24
Keyfobbattery replacement ............................................ 8-24
Lights ..................................................................................... 8-26
Headlights ...................................................................... 8-27
Headlight aim ................................................................ 8-28
Exterior and interior lights .......................................... 8-30
Wheels and tires ................................................................ 8-34
Tire pressure ................................................................. 8-34
Tire labeling ................................................................... 8-37
Types of tires ................................................................. 8-39
Tire chains ...................................................................... 8-40
Changing wheels and tires ........................................ 8-41


06.4.14/T30-J/V5.0


the locks hold securely in all latched positions.
Steering wheel:
Check for changes in the steering conditions,
such as excessive free play, hard steering or
strange noises.
Warning lights and chimes:
Make sure that all warning lights and chimes are
operating properly.
Windshield defroster:
Check that the air comes out of the defroster
outlets properly and in good quantity when
operating the heater or air conditioner.
Windshield wiper and washer*:
Check that the wipers and washer operate
properly and that the wipers do not streak.Under the hood and the vehicleThe maintenance items listed here should be
checked periodically (for example, each time you
check the engine oil or refuel).
Battery*:
Check the fluid level in each cell. It should be
between the upper level and lower level lines.
Vehicles operated in high temperatures or under
severe conditions require frequent checks of the
battery fluid level.Brake and clutch fluid level*:
Make sure that the brake and clutch fluid level is
between the MAX and MIN lines on the reservoir.
Engine coolant level*:
Check the coolant level when the engine is cold.
Engine drive belts*:
Make sure that no belt is frayed, worn, cracked
or oily.
Engine oil level*:
Check the level on the dipstick after parking the
vehicle on a level spot and turning off the engine.
Exhaust system:
Make sure there are no loose supports, cracks or
holes. If the sound of the exhaust seems unusual
or there is a smell of exhaust fumes, immediately
locate the trouble and correct it. (See “Precau-
tions when starting and driving” in the “5. Start-
ing and driving” section for exhaust gas (carbon
monoxide).)
Fluid leaks:
Check under the vehicle for fuel, oil, water or
other fluid leaks after the vehicle has been
parked for a while. Water dripping from the air
conditioner after use is normal. If you should
notice any leaks or if gasoline fumes are evident,check for the cause and have it corrected imme-
diately.
Power steering fluid level* and lines:
Check the level in the reservoir tank with the
engine off. Check the lines for proper attach-
ment, leaks, cracks, etc.
Radiator and hoses:
Check the front of the radiator and clean off any
dirt, insects, leaves, etc., that may have accumu-
lated. Make sure the hoses have no cracks,
deformation, deterioration or loose connections.
Underbody:
The underbody is frequently exposed to corro-
sive substances such as those used on icy roads
or to control dust. It is very important to remove
these substances, otherwise rust will form on the
floor pan, frame, fuel lines and around the ex-
haust system. At the end of winter, the under-
body should be thoroughly flushed with plain
water, being careful to clean those areas where
mud and dirt may accumulate. For additional
information, see “Cleaning exterior” in the “7.
Appearance and care” section.
Windshield washer fluid*:
Check that there is adequate fluid in the tank.8-4
Maintenance and do-it-yourself


06.4.14/T30-J/V5.0


MAINTENANCE PRECAUTIONSWhen performing any inspection or maintenance
work on your vehicle, always take care to prevent
serious accidental injury to yourself or damage to
the vehicle. The following are general precau-
tions which should be closely observed.
WARNING

Park the vehicle on a level surface,
apply the parking brake securely and
block the wheels to prevent the ve-
hicle from moving. For a manual
transmission, move the shift lever to
the N(Neutral) position. For an auto-
matic transmission, move the selec-
tor lever to the P (Park) position.

Be sure the ignition key is in the OFF
or LOCK position when performing
any parts replacement or repairs.

Your vehicle is equipped with an au-
tomatic engine cooling fan. It may
come on at any time without warning,
even if the ignition key is in the OFF
position and the engine is not run-
ning. To avoid injury, always discon-nect the negative battery cable be-
fore working near the fan.

If you must work with the engine
running, keep your hands, clothing,
hair and tools away from moving
fans, belts and any other moving
parts.

It is advisable to secure or remove
any loose clothing and any jewelry,
such as rings, watches, etc. before
working on your vehicle.

Always wear eye protection when-
ever you work on your vehicle.

If you must run the engine in an
enclosed space such as a garage, be
sure there is proper ventilation for
exhaust gases to escape.

Never get under the vehicle while it is
supported only by a jack. If it is nec-
essary to work under the vehicle,
support it with safety stands.

Keep smoking materials, flame and
sparks away from fuel and the
battery.
On gasoline engine models with the
Multiport Fuel Injection (MFI) Sys-
tem, the fuel filter or fuel lines should
be serviced by a NISSAN dealer be-
cause the fuel lines are under high
pressure even when the engine is off.
CAUTION

Do not work under the hood while
the engine is hot. Turn off the engine
and wait until it cools down.

Never connect or disconnect either
the battery or any transistorized
component connector while the igni-
tion key is on.

Never leave any engine or automatic
transmission related component har-
ness connectors disconnected while
the ignition key is on.

Avoid direct contact with used engine
oil and coolant. Improperly disposed
engine oil, engine coolant and/or
other vehicle fluids can hurt the envi-
Maintenance and do-it-yourself
8-5


06.4.14/T30-J/V5.0


1. Power steering fluid reservoir
2. Engine oil filler cap
3. Automatic transmission fluid dipstick
(Automatic Transmission (AT) model)
4. Brake and clutch (Manual Transmission (MT)
model) fluid reservoir
5. Air cleaner
6. Window washer fluid reservoir
7. Engine coolant reservoir
8. Engine oil dipstick
9. Radiator cap
10. Fuse/Fusible link holder
11. Battery
SDI1947
ENGINE COMPARTMENT CHECK
LOCATIONS
Maintenance and do-it-yourself
8-7


06.4.14/T30-J/V5.0


4. Start the engine and warm it up until it
reaches normal operating temperature. Then
race the engine 2 or 3 times under no load.
Watch the engine coolant temperature
gauge for signs of overheating.
5. Stop the engine. After it completely cools
down, refill the radiator up to the filler open-
ing. Fill the reservoir tank up to the MAX level.
Check the drain valve for any sign of leakage.
6. Recheck the coolant level after the vehicle
has been driven for a day.
CHECKING ENGINE OIL LEVEL1. Park the vehicle on a level surface and apply
parking brake.
2. Run the engine until it reaches operating
temperature.
3. Turn off the engine.Wait more than 10
minutes for the oil to drain back into the
oil pan.
4. Remove the dipstick and wipe it clean. Rein-
sert it all the way.5. Remove the dipstick again and check the oil
level. It should be between the H and L marks
1. If the oil level is below the L mark
2,
remove the oil filler cap and pour recom-
mended oil through the opening.Do not
overfill
3.
When filling the engine oil, do not remove the
dipstick.
6. Recheck oil level with dipstick.
It is normal to add some oil between oil
maintenance intervals or during the
break-in period, depending on the severity
of operating conditions.
CAUTION
Oil level should be checked regularly.
Operating with insufficient amount of
oil can damage the engine, and such
damage is not covered by warranty.
SDI1597
ENGINE OIL
8-10
Maintenance and do-it-yourself


06.4.14/T30-J/V5.0


CHANGING ENGINE OILChange the engine oil and filter according to the
maintenance log shown in the Service and Main-
tenance Guide.
1. Park the vehicle on a level surface and apply
the parking brake.
2. Run the engine until it reaches operating
temperature.
3. Turn the engine off andwait more than 10
minutes.
4. Place a large drain pan under the drain plug
1.5. Remove the oil filler cap
2.
6. Remove the drain plug
1with a wrench and
completely drain the oil.
If oil filter is to be changed, remove and
replace it at this time. See later in this section
for changing engine oil filter.
WARNING
Be careful not to burn yourself, as the
engine oil is hot.

Waste oil must be disposed of properly.

Check your local regulations.
7. Clean and re-install the drain plug
1
with a
new washer. Securely tighten the drain plug
with a wrench.
Drain plug tightening torque:
29 to 39 N⋅m (3.0 to 4.0 kg-m, 22 to 29
ft-lb)
Do not use excessive force.
8. Refill engine with recommended oil and in-
stall the cap securely.
CAUTION
Never pull out the oil level gauge while
filling engine oil.
See “Capacities and recommended
fuel/lubricants” in the “9. Technical and con-
sumer information” section for drain and refill
capacity. The drain and refill capacity de-
pends on the oil temperature and drain time.
Use these specifications for reference only.
Always use the dipstick to determine the
proper amount of oil in the engine.
9. Start the engine.
Check for leakage around the drain plug.
Correct as required.
10. Turn the engine off andwait more than 10
minutes. Check the oil level with the dip-
stick. Add engine oil if necessary.
11. Dispose of waste oil properly.
WARNING

Prolonged and repeated contact with
SDI1318B
Maintenance and do-it-yourself
8-11


06.4.14/T30-J/V5.0


used engine oil may cause skin can-
cer.

Try to avoid direct skin contact with
used oil. If skin contact is made,
wash thoroughly with soap or hand
cleaner as soon as possible.

Keep used engine oil out of reach of
children.
CHANGING ENGINE OIL FILTER1. Park the vehicle on a level surface and apply
the parking brake.
2. Turn the engine off.
3. Loosen the oil filter
3
with an oil filter
wrench. Remove the oil filter by turning it by
hand.
WARNING
Be careful not to burn yourself, as theengine oil may be hot.
4. Wipe the engine oil filter mounting surface
with a clean rag.
Be sure to remove any old rubber gasket
remaining on the mounting surface of the
engine.
5. Coat the rubber gasket on the new filter with
clean engine oil.
6. Screw in the oil filter until a slight resistance
is felt, then tighten additionally more than 2/3
turn.
Oil filter tightening torque:
15 to 20 N⋅m (1.6 to 2.0 kg-m, 11 to 15
ft-lb)
7. Start the engine and check for leakage
around the oil filter. Correct as required.
8. Turn the engine off and wait several minutes.
Check the oil level. Add engine oil if neces-
sary.
SDI1318B
8-12
Maintenance and do-it-yourself


06.4.14/T30-J/V5.0