2007 NISSAN SENTRA engine light on

and are installed securely. Check the belt web-
bing for cuts, fraying, wear or damage.
Steering wheelCheck for changes in the steer-
ing system, such as excessive freeplay, hard
steering or strange noises.
Warning lights and chimesMake sure all
warning lights and chimes are operating properly.
Windshield wiper and washer*Check that
the wipers and washer operate properly and that
the wipers do not streak.
Windshield defrosterCheck that the air
comes out of the defroster outlets properly and in
sufficient quantity when operating the heater or
air conditioner.
Under the hood and vehicle
The 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 MAX and MIN lines. Ve-
hicles operated in high temperatures or under
severe conditions require frequent checks of the
battery fluid level.
Brake and clutch fluid levels*Make sure that
the brake and clutch fluid level is between the
MIN and MAX lines on the reservoir.Engine coolant level*Check the coolant level
when the engine is cold.
Engine drive belts*Make sure the drive belts
are not frayed, worn, cracked or oily.
Engine oil level*Check the level after parking
the vehicle on a level surface with the engine off.
Wait more than 10 minutes for the oil to drain
back into the oil pan.
Exhaust systemMake 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 have the exhaust
system inspected by a NISSAN dealer. See the
carbon monoxide warning in the “Starting and
driving” section of this manual.
Fluid leaksCheck 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.
Radiator and hosesCheck 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, rot or loose
connections.UnderbodyThe underbody is frequently ex-
posed to corrosive substances such as those
used on icy roads or to control dust. It is very
important to remove these substances from the
underbody, otherwise rust may form on the floor
pan, frame, fuel lines and exhaust system. At the
end of winter, the underbody should be thor-
oughly flushed with plain water, in those areas
where mud and dirt may have accumulated. See
the “Appearance and care” section of this
manual.
Windshield washer fluid*Check that there is
adequate fluid in the reservoir.
8-4Maintenance and do-it-yourself
ZREVIEW COPYÐ2007 Sentra(sen)
Owners ManualÐUSA_English(nna)
11/28/06Ðarosenma
X

CHANGING ENGINE OIL FILTER
1. Park the vehicle on a level surface and apply
the parking brake.
2. Turn the engine off.
3. Place a large drain pan under the oil filter
sC.
4. Loosen the oil filter with an oil filter wrench
by turning it counterclockwise. Then remove
the oil filter by turning it by hand.
CAUTION
Be careful not to burn yourself. The engine
oil may be hot.
5. Wipe the engine oil filter sealing surface with
a clean rag.
Be sure to remove any old gasket material
remaining on the sealing surface of the en-
gine.
6. Coat the gasket on the new filter with clean
engine oil.
7. Screw on the oil filter until a slight resistance
is felt, then tighten an additional 2/3 turn.
8. Start the engine and check for leakage
around the oil filter. Correct as required.
9. Turn the engine off and wait more than 10
minutes. Check the oil level. Add engine oil if
necessary.
MR20DE engine
sAOil filler cap
sBOil drain plug
sCOil filter
WDI0521
QR25DE engine
sAOil filler cap
sBOil drain plug
sCOil filter
WDI0597
8-12Maintenance and do-it-yourself
ZREVIEW COPYÐ2007 Sentra(sen)
Owners ManualÐUSA_English(nna)
11/28/06Ðarosenma
X

WARNING
cUse only Genuine NISSAN CVT Fluid
NS-2. Do not mix with other fluids.
cUsing transmission fluid other than
Genuine NISSAN CVT Fluid NS-2 will
damage the CVT, which is not covered
by the NISSAN new vehicle limited
warranty.
When checking or replacement is required, we
recommend your NISSAN dealer for servicing.
The specified CVT fluid is also described on
caution labels located in the engine compart-
ment.For further brake and clutch fluid specification
information, refer to “Capacities and recom-
mended fuel/lubricants” in the “Technical and
consumer information” section of this manual.
WARNING
cUse only new fluid from a sealed con-
tainer. Old, inferior or contaminated
fluid may damage the brake and clutch
systems. The use of improper fluids can
damage the brake system and affect
the vehicle’s stopping ability.
cBe sure to clean the filler cap before
removing.
CAUTION
Do not spill the fluid on any painted sur-
faces. This will damage the paint. If fluid is
spilled, immediately wash the surface
with water.
BRAKE FLUID
Check the brake fluid level in the reservoir. If the
brake warning light comes on, add Genuine
NISSAN Super Heavy Duty Brake Fluid or
equivalentDOT 3fluid up to the MAX line
sA.If
fluid must be added frequently, the system should
be checked by a NISSAN dealer.
LDI0539
CONTINUOUSLY VARIABLE
TRANSMISSION (CVT) FLUIDBRAKE AND CLUTCH FLUID
Maintenance and do-it-yourself8-13
ZREVIEW COPYÐ2007 Sentra(sen)
Owners ManualÐUSA_English(nna)
11/28/06Ðarosenma
X

CLUTCH FLUID
Check the clutch fluid level in the reservoir
(manual transmissions only) . Add Genuine
NISSAN Super Heavy Duty Brake Fluid or
equivalentDOT 3fluid up to the MAX line
sA.If
fluid must be added frequently, the system should
be checked by a NISSAN dealer.
For further brake and clutch fluid specification
information, refer to “Capacities and recom-
mended fuel/lubricants” in the “Technical and
consumer information” section of this manual.
WINDOW WASHER FLUID
RESERVOIR
Fill the window washer fluid reservoir periodically.
Add window washer fluid when the low window
washer fluid warning light comes on (if so
equipped) .
To fill the window washer fluid reservoir, lift the
cap off the reservoir tank and pour the window
washer fluid into the tank opening.
Add a washer solvent to the washer for better
cleaning. In the winter season, add a windshield
washer antifreeze. Follow the manufacturer’s in-
structions for the mixture ratio.Refill the reservoir more frequently when driving
conditions require an increased amount of win-
dow washer fluid.
Recommended fluid is Genuine NISSAN Wind-
shield Washer Concentrate Cleaner & Anti-
freeze or equivalent.
CAUTION
cDo not substitute engine anti-freeze
coolant for window washer solution.
This may result in damage to the paint.
cDo not fill the window washer reservoir
tank with washer fluid concentrates at
full strength. Some methyl alcohol
based washer fluid concentrates may
permanently stain the grille if spilled
while filling the window washer reser-
voir tank.
cPre-mix washer fluid concentrates with
water to the manufacturer’s recom-
mended levels before pouring the fluid
into the window washer reservoir tank.
Do not use the window washer reservoir
tank to mix the washer fluid concen-
trate and water.
LDI0539LDI0540
WINDOW WASHER FLUID
8-14Maintenance and do-it-yourself
ZREVIEW COPYÐ2007 Sentra(sen)
Owners ManualÐUSA_English(nna)
11/28/06Ðarosenma
X

If the brakes do not operate properly, have the
brakes checked by a NISSAN dealer.
Self-adjusting brakes
Your vehicle is equipped with self-adjusting
brakes.
The front and rear disc-type brakes self-adjust
every time the brake pedal is applied.
WARNING
See a NISSAN dealer for a brake system
check if the brake pedal height does not
return to normal.
Brake pad wear indicators
The disc brake pads on your vehicle have audible
wear indicators. When a brake pad requires re-
placement, a high pitched scraping or screech-
ing sound will be heard when the vehicle is in
motion. The noise will be heard whether or not the
brake pedal is depressed. Have the brakes
checked as soon as possible if the wear indicator
sound is heard.
Under some driving or climate conditions, occa-
sional brake squeak, squeal or other noise may
be heard. Occasional brake noise during light to
moderate stops is normal and does not affect the
function or performance of the brake system.Proper brake inspection intervals should
be followed.For more information regarding
brake inspections, see the appropriate mainte-
nance schedule information in the “NISSAN Ser-
vice and Maintenance Guide”.
Two types of fuses are used. Type A is used in the
fuse boxes in the engine compartment. Type B is
used in the passenger compartment fuse box.
Type A fuses are provided as spare fuses. They
are stored in the passenger compartment fuse
box.
Type A fuses can be installed in the engine com-
partment and passenger compartment fuse
boxes.
LDI0455
BRAKESFUSES
Maintenance and do-it-yourself8-21
ZREVIEW COPYÐ2007 Sentra(sen)
Owners ManualÐUSA_English(nna)
11/28/06Ðarosenma
X

If a type A fuse is used to replace a type B fuse,
the type A fuse will not be level with the fuse
pocket as shown in the illustration. This will not
affect the performance of the fuse. Make sure the
fuse is installed in the fuse box securely.
Type B fuses cannot be installed in the under-
hood fuse boxes. Only use type A fuses in the
underhood fuse boxes.
ENGINE COMPARTMENT
CAUTION
Never use a fuse of a higher or lower
amperage rating than specified on the
fuse box cover. This could damage the
electrical system or cause a fire.NOTE:
For checking and replacing fuses on
QR25DE engine models, see a NISSAN
dealer.
If any electrical equipment does not come on,
check for an open fuse.
1. Be sure the ignition switch and the headlight
switch are OFF.
2. Open the engine hood.
3. Remove the fuse box cover by pushing the
tabs
sAand lifting the cover up from the
front
sB.
4. Remove the fuse with the fuse puller. The
fuse puller is located in the center of the fuse
block in the passenger compartment.LDI0457
(MR20DE engine)
LDI0542
8-22Maintenance and do-it-yourself
ZREVIEW COPYÐ2007 Sentra(sen)
Owners ManualÐUSA_English(nna)
11/28/06Ðarosenma
X

The following are approximate capacities. The actual refill capacities may be slightly different. When refilling, follow the procedure described in
the “Maintenance and do-it-yourself” section to determine the proper refill capacity.
Capacity (Approximate) Recommended Fluids and Lubricants
US measure Imp measure Liter
Fuel 14-1/2 gal 12-1/8 gal 55.0 MR20DE and QR25DE except Spec-V: Unleaded gasoline with an oc-
tane rating of at least 87 AKI (RON 91)*1
QR25DE Spec-V only: Unleaded premium gasoline with an octane rat-
ing of at least 91 AKI (RON 96)*1
Engine oil *6
Drain and Refill
With oil filter change MR20DE 4 qt 3-3/8 qt 3.8
• Engine oil with API Certification Mark *2
• Viscosity SAE 5W-30 *2 QR25DE 4-1/2 qt 3-3/4 qt 4.3
Without oil filter change MR20DE 3-7/8 qt 3-1/8 qt 3.6
QR25DE 4-1/4 qt 3-1/2 qt 4.0
Cooling system
With reservoir
MR20DE 1-7/8 gal 1-1/2 gal 7.0 50% Genuine NISSAN Long Life Antifreeze/Coolant or equivalent
50% Demineralized or distilled water QR25DE 2 gal 1-5/8 gal 7.6
Continuously Variable Transmission (CVT) fluid — — — Genuine NISSAN CVT fluid NS-2 *3
Manual transmission gear oil
MR20DE — — — ELF XT4447 M+ 75W-80 or API GL-4, Viscosity SAE 75W-80
QR25DE —— — Genuine NISSAN Manual Transmission Fluid (MTF) HQ Multi 75W-85
or API GL-4, Viscosity SAE 75W-85
Brake and clutch fluid Refill to the proper level according to the in-
structions in the “Maintenance and do-it-
yourself” section *7Genuine NISSAN Super Heavy Duty Brake Fluid or equivalent DOT 3 *4
Multi-purpose grease — — — NLGI No. 2 (Lithium Soap base)
Air conditioning system refrigerant — — — HFC-134a (R-134a) *5
Air conditioning system oil — — — NISSAN A/C System Oil Type S or equivalent *5
Windshield washer fluid — — — Genuine NISSAN Windshield Washer Concentrate Cleaner & Anti-
freeze or equivalent
*1: For further details, see “Fuel recommendation.”
*2: For further details, see “Engine oil and oil filter recommendations.”
*3:Use only Genuine NISSAN CVT Fluid NS-2. Using transmission fluid other than Genuine NISSAN CVT Fluid NS-2 will damage the CVT transmission, which is not
covered by the NISSAN new vehicle limited warranty.
*4: Available in mainland USA through your NISSAN dealer.
*5: For further details, see “Air conditioner system refrigerant and oil recommendations.”
*6: For further details, see “Engine Oil” in the “Maintenance and do-it-yourself” section of this manual.
*7: See your NISSAN dealer for service.
CAPACITIES AND RECOMMENDED
FUEL/LUBRICANTS
9-2Technical and consumer information
ZREVIEW COPYÐ2007 Sentra(sen)
Owners ManualÐUSA_English(nna)
12/07/06Ðcathy
X

of appropriate cosolvents and corro-
sion inhibitors. If not properly formu-
lated with appropriate cosolvents and
corrosion inhibitors, such methanol
blends may cause fuel system damage
and/or vehicle performance problems.
At this time, sufficient data is not avail-
able to ensure that all methanol blends
are suitable for use in NISSAN ve-
hicles.
If any driveability problems such as engine stall-
ing and difficult hot-starting are experienced after
using oxygenate-blend fuels, immediately
change to a non-oxygenate fuel or a fuel with a
low blend of MTBE.
Take care not to spill gasoline during refu-
eling. Gasoline containing oxygenates can
cause paint damage.
E–85 fuel
E-85 fuel is a mixture of approximately 85% fuel
ethanol and 15% unleaded gasoline. E-85 can
only be used in a Flexible Fuel Vehicle (FFV) . Do
not use E-85 in your vehicle. U.S. government
regulations require fuel ethanol dispensing
pumps to be identified by a small, square, orange
and black label with the common abbreviation or
the appropriate percentage for that region.
Aftermarket fuel additives
NISSAN does not recommend the use of any
aftermarket fuel additives (for example, fuel injec-
tor cleaner, octane booster, intake valve deposit
removers, etc.) which are sold commercially.
Many of these additives intended for gum, varnish
or deposit removal may contain active solvents or
similar ingredients that can be harmful to the fuel
system and engine.
Octane rating tips
Using unleaded gasoline with an octane
rating lower than recommended can cause
persistent, heavy “spark knock.” (“Spark
knock” is a metallic rapping noise.) If se-
vere, this can lead to engine damage. If you
detect a persistent heavy spark knock even
when using gasoline of the stated octane
rating, or if you hear steady spark knock
while holding a steady speed on level
roads, have a NISSAN dealer correct the
condition. Failure to correct the condition
is misuse of the vehicle, for which NISSAN
is not responsible.
Incorrect ignition timing may result in spark
knock, after-run and/or overheating, which may
cause excessive fuel consumption or enginedamage. If any of the above symptoms are en-
countered, have your vehicle checked at a
NISSAN dealer.
However, now and then you may notice
light spark knock for a short time while
accelerating or driving up hills. This is not a
cause for concern, because you get the
greatest fuel benefit when there is light
spark knock for a short time under heavy
engine load.CAUTION
cYour vehicle is not designed to run on
E-85 fuel. Using E-85 fuel in a vehicle
not specifically designed for E-85 fuel
can damage fuel system components
and is not covered by the NISSAN new
vehicle limited warranty.
cE-85 is a mixture of approximately 85%
fuel ethanol and 15% unleaded
gasoline.
cU.S. government regulations require
ethanol dispensing pumps to be identi-
fied by a small, square, orange and
black label with the common abbrevia-
tion or the appropriate percentage for
that region.
9-4Technical and consumer information
ZREVIEW COPYÐ2007 Sentra(sen)
Owners ManualÐUSA_English(nna)
11/28/06Ðarosenma
X