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.

MA-4

< 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.

WT-46

Wheel nuts

When checking the tires, make sure no nuts are missing, and check for any loose 
nuts. Tighten if necessary.

WT-47

Tire rotation

Tires should be rotated every 5,000 miles (8,000 km).

WT-46

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.

WT-50

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.

WT-47

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.

DLK-179

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. 

EXL-115

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.

SB-5

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.

BR-15

, 

BR-11

Clutch pedal

Make sure the pedal operates smoothly and check that it has the proper free play.

CL-5

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.

PB-4

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.

—

Engine coolant level

Check the coolant level when the engine is cold.

CO-11

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.

BR-9

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.

EM-16

Engine oil level

Check the level on the oil level gauge after parking the vehicle on a level spot and 
turning off the engine.

LU-7

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.

EX-4

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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