2004 NISSAN SENTRA radiator

QG18DE engine
1. Engine oil filler cap (P. 8-11)
2. Spark plug caps/ignition coils (P. 8-22)
3. Brake fluid reservoir (P. 8-18)
4. Clutch fluid reservoir (M/T model)
(P. 8-18)
5. Air cleaner (P. 8-23)
6. Battery (P. 8-19)
7. Fuse/Fusible link box (P. 8-30)
8. Radiator cap (P. 8-8)
9. Engine oil dipstick (P. 8-11)
10. Windshield washer fluid reservoir
(P. 8-19)
11. Engine coolant reservoir (P. 8-8)
12. Power steering fluid reservoir (P. 8-17)
WDI0024
ENGINE COMPARTMENT LOCATIONS
Illustrated table of contents0-7
ZREVIEW COPY:Ð2004 Sentra(b15)
Owners Manual(owners)ÐUSA English(nna)
03/18/04Ðtbrooks
X

QR25DE engine
1. Engine oil filler cap (P. 8-11)
2. Spark plug caps (P. 8-22)
3. Brake fluid reservoir (P. 8-18)
4. Clutch fluid reservoir (M/T model)
(P. 8-18)
5. Air cleaner (P. 8-23)
6. Battery (P. 8-19)
7. Fuel/Fusible link box (P. 8-30)
8. Radiator cap (P. 8-8)
9. Engine oil dipstick (P. 8-11)
10. Windshield washer fluid reservoir
(P. 8-19)
11. Engine coolant reservoir (P. 8-8)
12. Power steering fluid reservoir (P. 8-17)
See the page number indicated in paren-
theses for operating details.
LDI0108
0-8Illustrated table of contents
ZREVIEW COPY:Ð2004 Sentra(b15)
Owners Manual(owners)ÐUSA English(nna)
03/18/04Ðtbrooks
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Resetting the trip odometer:
Pushing the change button for more than 1 sec-
ond resets the trip odometer to zero.
TRIP COMPUTER (if so equipped)
The display of the trip computer is situated in the
speedometer display. When the ignition is turned
to ON, the display scrolls all the modes of the trip
computer and then shows the mode chosen be-
fore the ignition switch is turned OFF.
If the battery terminal is disconnected,
push the trip computer mode switch more
than 1 second to activate the computer.
When the ignition switch is turned to ON, modes
of the trip computer can be selected by pushing
the trip computer change button. The following
modes can be selected:
Outside air temperature (ICY-°F or °C)
The outside air temperature is displayed in °F or
°C.
The outside air temperature mode includes a low
temperature warning feature: below 37°F (3°C) ,
the outside air temperature mode is automatically
selected and ICY will illuminate in order to draw
the driver’s attention. Press the change button if
you wish to return to the mode that was selected
before the warning occurred. The ICY indicatorwill continue blinking as long as the temperature
remains below 39°F (4°C) .
The ambient temperature sensor is located in
front of the radiator. The sensor may be affected
by road or engine heat, wind directions and other
driving conditions. The display may differ from the
actual ambient temperature or the temperature
displayed on various signs or billboards.
Distance to empty (dte—mile or km)
The distance to empty (dte) mode provides you
with an estimation of the distance that can be
driven before refueling. The dte is constantly be-
ing calculated, based on the amount of fuel in the
fuel tank and the actual fuel consumption.
The display is updated every 30 seconds.
The dte mode includes a low range warning
feature: when the fuel level is low, the dte mode is
automatically selected and the digits blink in or-
der to draw the driver’s attention. Press the
change button if you wish to return to the mode
that was selected before the warning occurred.
The dte mark (dte) will remain blinking until the
vehicle is refueled.
When the fuel level drops even lower, the dte
display will change to (----) .NOTE:
cIf the amount of fuel added while the
ignition switch is OFF is small, the dis-
play just before the ignition switch is
turned OFF may continue to be dis-
played.
cWhen driving uphill or rounding curves,
the fuel in the tank shifts, which may
momentarily change the display.Average fuel consumption (Mpg or
l/100km)
The average fuel consumption mode shows the
average fuel consumption since the last reset.
Resetting is done by pressing the change button
for more than approximately 1 second. The dis-
play is updated every 30 seconds. At about the
first 1/3 miles (500 m) after a reset, the display
shows (----) .
Average speed (MPH or km/h)
The average speed mode shows the average
vehicle speed since last reset. Resetting is done
by pressing the change button for more than
approximately 1 second. The display is updated
every 30 seconds. The first 30 seconds after a
reset, the display shows (----) .
Instruments and controls2-5
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If your vehicle is overheating (indicated by an
extremely high temperature gauge reading) , or if
you feel a lack of engine power, detect abnormal
noise, etc. take the following steps.
WARNING
cDo not continue to drive if your vehicle
overheats. Doing so could cause engine
damage or a vehicle fire.
cTo avoid the danger of being scalded,
never remove the radiator cap while the
engine is still hot. When the radiator
cap is removed, pressurized hot water
will spurt out, possibly causing serious
injury.
cDo not open the hood if steam is com-
ing out.
1. Move the vehicle safely off the road, apply
the parking brake and move the shift lever to
N (Neutral) (manual transmission) or to P
(Park) (automatic transmission) .
Do not stop the engine.
2. Turn off the air conditioner (if so equipped) .
Open all the windows, move the heater or air
conditioner temperature control to maximum
hot and fan control to high speed.3. Get out of the vehicle. Look and listen for
steam or coolant escaping from the radiator
before opening the hood. (If steam or cool-
ant is escaping, turn off the engine.) Do not
open the hood further until no steam or
coolant can be seen.
4. Open the engine hood.
WARNING
If steam or water is coming from the en-
gine, stand clear to prevent getting
burned.
5. Visually check drive belts for damage or
looseness. Also check if the cooling fan is
running. The radiator hoses and radiator
should not leak water. If coolant is leaking,
the water pump belt is missing or loose, or
the cooling fan does not run, stop the en-
gine.
WARNING
Be careful not to allow your hands, hair,
jewelry or clothing to come into contact
with, or get caught in, engine belts or the
engine cooling fan. The engine cooling
fan can start at any time when the coolant
temperature is high.6. After the engine cools down, check the cool-
ant level in the engine coolant reservoir tank
with the engine running. Add coolant to the
engine coolant reservoir tank if necessary.
Have your vehicle repaired at a NISSAN
dealer.
IF YOUR VEHICLE OVERHEATS
6-10In case of emergency
ZREVIEW COPY:Ð2004 Sentra(b15)
Owners Manual(owners)ÐUSA English(nna)
03/18/04Ðtbrooks
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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) .
Automatic transmission fluid level*Check
the level after putting the selector lever in P with
the engine idling at operating temperature.
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.
Power steering fluid level* and linesCheck
the level when the fluid is cold, with the engine
off. Check the lines for proper attachment, leaks,
cracks, etc.
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 COPY:Ð2004 Sentra(b15)
Owners Manual(owners)ÐUSA English(nna)
03/18/04Ðtbrooks
X

QG18DE engine
1. Engine oil filler cap
2. Spark plug caps/ignition coils
3. Brake fluid reservoir
4. Clutch fluid reservoir (M/T model)
5. Air cleaner
6. Battery
7. Fuse/Fusible link box
8. Radiator cap
9. Engine oil dipstick
10. Windshield washer fluid reservoir
11. Engine coolant reservoir
12. Power steering fluid reservoir
WDI0024
ENGINE COMPARTMENT CHECK
LOCATIONS
8-6Maintenance and do-it-yourself
ZREVIEW COPY:Ð2004 Sentra(b15)
Owners Manual(owners)ÐUSA English(nna)
03/18/04Ðtbrooks
X

QR25DE engine
1. Engine oil filler cap
2. Spark plug caps
3. Brake fluid reservoir
4. Clutch fluid reservoir (M/T model)
5. Air cleaner
6. Battery
7. Fuse/Fusible link box
8. Radiator cap
9. Engine oil dipstick
10. Windshield washer fluid reservoir
11. Engine coolant reservoir
12. Power steering fluid reservoir
NOTE:
Engine cover removed for clarity.
LDI0108
Maintenance and do-it-yourself8-7
ZREVIEW COPY:Ð2004 Sentra(b15)
Owners Manual(owners)ÐUSA English(nna)
03/18/04Ðtbrooks
X

The engine cooling system is filled at the factory
with a high-quality, year-round, anti-freeze cool-
ant solution. The anti-freeze solution contains
rust and corrosion inhibitors; therefore, additional
engine cooling system additives are not neces-
sary.
WARNING
cNever remove the radiator cap when the
engine is hot. Serious burns could be
caused by high pressure fluid escaping
from the radiator.
cThe radiator is equipped with a pres-
sure type radiator cap. To prevent en-
gine damage, use only a genuine
NISSAN radiator cap.
Outside temperature
down toGenuine
NISSAN
Long Life
Anti-freeze
Coolant or
equivalentDemineral-
ized or dis-
tilled water
°C °F
-35 -30 50% 50%
CAUTION
When adding or replacing coolant, be sure
to use only a Genuine NISSAN Long Life
Anti-freeze Coolant (green) or equivalent
with the proper mixture ratio of 50% anti-
freeze and 50% demineralized or distilled
water. The use of other types of coolant
solutions or coolant colors, such as or-
ange, may damage the engine cooling
system.
CHECKING ENGINE COOLANT
LEVEL
Check the coolant levelin the reservoir when
the engine is cold.If the coolant level is below
the MIN level, add coolant to the MAX level. If the
reservoir is empty, check the coolant level in the
radiatorwhen the engine is cold.If there is
insufficient coolant in the radiator, fill the radiator
with coolant up to the filler opening and also add
it to the reservoir up to the MAX level.
If the cooling system frequently requires
coolant, have it checked by a NISSAN
dealer.
WDI0168
ENGINE COOLING SYSTEM
8-8Maintenance and do-it-yourself
ZREVIEW COPY:Ð2004 Sentra(b15)
Owners Manual(owners)ÐUSA English(nna)
03/18/04Ðtbrooks
X