Nissan Sentra. Manual — part 625
PRECAUTIONS
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< PRECAUTION >
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
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The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the
battery and wait at least three minutes before performing any service.
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< PREPARATION >
PREPARATION
PREPARATION
PREPARATION
Special Service Tool
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The actual shape of tools may differ from those illustrated here.
Commercial Service Tool
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Tool numbers
(TechMate No.)
Tool name
Description
KV10115801
(J-38956)
Oil filter wrench
Removing and installing oil filter
a: 64.3 mm (2.531 in)
KV991J0070
(J-45695)
Coolant refill tool
Refilling engine cooling system
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(J-23688)
Engine coolant refractometer
Checking concentration of ethylene glycol in
engine coolant
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(J-48891)
Spark plug wrench
Removing and installing spark plug
S-NT375
LMA053
WBIA0539E
PBIC2982E
Tool name
Description
Power tool
Loosening nuts, screws and bolts
PIIB1407E
GENERAL MAINTENANCE
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< PERIODIC MAINTENANCE >
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PERIODIC MAINTENANCE
GENERAL MAINTENANCE
Explanation of General Maintenance
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General maintenance includes those items which should be checked during the normal day-to-day operation
of the vehicle. They are essential if the vehicle is to continue operating properly. The owners can perform
checks and inspections themselves or have their NISSAN dealers do them.
OUTSIDE THE VEHICLE
The maintenance items listed here should be performed from time to time, unless otherwise specified.
INSIDE THE VEHICLE
The maintenance items listed here should be checked on a regular basis, such as when performing periodic maintenance, cleaning the vehicle,
etc.
Item
Reference page
Tires
Check the pressure with a gauge often and always prior to long distance trips.
Adjust the pressure in all tires, including the spare, to the pressure specified.
Check carefully for damage, cuts or excessive wear.
Wheel nuts
When checking the tires, make sure no nuts are missing, and check for any loose
nuts. Tighten if necessary.
Tire rotation
Tires should be rotated every 5,000 miles (8,000 km).
Tire Pressure Monitor-
ing System (TPMS)
transmitter compo-
nents
Replace the TPMS transmitter grommet seal, valve core and cap when the tires
are replaced due to wear or age.
Wheel alignment and
balance
If the vehicle should pull to either side while driving on a straight and level road,
or if you detect uneven or abnormal tire wear, there may be a need for wheel
alignment. If the steering wheel or seat vibrates at normal highway speeds,
wheel balancing may be needed. For additional information regarding tires, refer
to "Important Tire Safety Information" (US) or "Tire Safety Information" (Canada)
in the NISSAN Warranty Information Booklet.
Windshield
Clean the windshield on a regular basis. Check the windshield at least every six
months for cracks or other damage. Repair as necessary.
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Windshield wiper
blades
Check for cracks or wear if they do not wipe properly.
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Doors and engine
hood
Check that all doors and the engine hood operate properly. Also make sure that
all latches lock securely. Lubricate if necessary. Make sure that the secondary
latch keeps the hood from opening when the primary latch is released.
When driving in areas using road salt or other corrosive materials, check for lu-
brication frequently.
Lamps
Make sure that the headlamps, stop lamps, tail lamps, turn signal lamps, and oth-
er lamps are all operating properly and installed securely. Also check headlamp
aim. Clean the headlamps on a regular basis.
Item
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Warning lamps and
chimes
Make sure that all warning lamps and chimes are operating properly.
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Windshield wiper and
washer
Check that the wipers and washer operate properly and that the wipers do not
streak.
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Windshield defroster
Check that the air comes out of the defroster outlets properly and in sufficient
quantity when operating the heater or air conditioner.
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Steering wheel
Check that it has the specified play. Check for changes in the steering condition,
such as excessive play, hard steering or strange noises.
Free play: Less than 35 mm (1.38 in)
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MA-6
< PERIODIC MAINTENANCE >
GENERAL MAINTENANCE
UNDER THE HOOD AND VEHICLE
The maintenance items listed here should be checked periodically (e.g. each time you check the engine oil or refuel).
Seats
Check seat position controls such as seat adjusters, seatback recliner, etc. to
make sure they operate smoothly and that all latches lock securely in every po-
sition. Check that the head restrains move up and down smoothly and that the
locks (if equipped) hold securely in all latched positions. Check that the latches
lock securely for folding-down rear seatbacks.
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Seat belts
Check that all parts of the seat belt system (e.g. buckles, anchors, adjusters and
retractors) operate properly and smoothly, and are installed securely. Check the
belt webbing for cuts, fraying, wear or damage.
Accelerator pedal
Check the pedal for smooth operation and make sure the pedal does not catch
or require uneven effort. Keep the floor mats away from the pedal.
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Brakes
Check that the brake does not pull the vehicle to one side when applied.
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Brake pedal and
booster
Check the pedal for smooth operation and make sure it has the proper distance
under it when depressed fully. Check the brake booster function. Be sure to keep
the floor mats away from the pedal.
Clutch pedal
Make sure the pedal operates smoothly and check that it has the proper free play.
Parking brake
Check that the lever or the pedal has the proper travel and make sure that the
vehicle is held securely on a fairly steep hill when only the parking brake is ap-
plied.
CVT P (Park) position
mechanism
On a fairly steep hill check that the vehicle is held securely with the shift selector
in the P (Park) position without applying any brakes.
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Item
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Windshield washer
fluid
Check that there is adequate fluid in the tank.
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Engine coolant level
Check the coolant level when the engine is cold.
Radiator and hoses
Check the front of the radiator and clean off any dirt, insects, leaves, etc., that
may have accumulated. Make sure the hoses have no cracks, deformation, de-
terioration or loose connections.
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Brake and clutch fluid
levels
Make sure that the brake and clutch fluid levels are between the “MAX” and “MIN”
lines on the reservoirs.
Battery
Check the fluid level in each cell. It should be between the “MAX” and “MIN” lines.
Vehicles operated in high temperatures or under severe conditions require fre-
quent checks of the battery fluid level.
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Engine drive belts
Make sure that no belt is frayed, worn, cracked or oily.
Engine oil level
Check the level on the oil level gauge 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 ex-
haust seems unusual or there is a smell of exhaust fumes, immediately locate the
trouble and correct it.
Underbody
The underbody is frequently exposed to corrosive substances such as those
used on icy roads or to control dust. It is very important to remove these sub-
stances, otherwise rust will form on the floor pan, frame, fuel lines and around the
exhaust system. At the end of winter, the underbody should be thoroughly
flushed with plain water, being careful to clean those areas where mud and dirt
can easily accumulate.
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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 gasoline fumes are evident, check for
the cause and correct it immediately.
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