2007 NISSAN SENTRA engine

2. Check the fluid level in each cell. If it is
necessary to add fluid, add only distilled
water to bring the level up to the bottom of
the filler opening.Do not overfill.Vehicles operated in high temperatures or under
severe conditions require frequent checks of the
battery fluid level.
JUMP STARTING
If jump starting is necessary, see “Jump starting”
in the “In case of emergency” section of this
manual. If the engine does not start by jump
starting, the battery may have to be replaced.
Contact a NISSAN dealer.
1. Crankshaft pulley
2. Air conditioner compressor
3. Water pump
4. Generator
LDI0302
MR20DE model
SDI1979
DRIVE BELT
8-16Maintenance and do-it-yourself
ZREVIEW COPYÐ2007 Sentra(sen)
Owners ManualÐUSA_English(nna)
11/28/06Ðarosenma
X

1. Crankshaft pulley
2. Automatic tensioner
3. Water pump
4. Generator
5. Air conditioner compressor
WARNING
Be sure the ignition key is in the OFF or
LOCK position before servicing drive belt.
The engine could rotate unexpectedly.1. Visually inspect the belt for signs of unusual
wear, cuts, or fraying. If the belt is in poor
condition, have it replaced or adjusted by a
NISSAN dealer.
2. Have the belt checked regularly for condi-
tion.
REPLACING SPARK PLUGS
Platinum-tipped spark plugs (if so
equipped)
It is not necessary to replace platinum-tippedsA
spark plugs as frequently as conventional type
spark plugs because they last much longer. Fol-
low the maintenance log shown in the “NISSAN
Service and Maintenance Guide”. Do not service
platinum-tipped spark plugs by cleaning or re-
gapping.
cAlways replace spark plugs with rec-
ommended or equivalent ones.
QR25DE model
LDI0592SDI1895
SPARK PLUGS
Maintenance and do-it-yourself8-17
ZREVIEW COPYÐ2007 Sentra(sen)
Owners ManualÐUSA_English(nna)
11/28/06Ðarosenma
X

WARNING
Be sure the engine and ignition switch are
off and that the parking brake is engaged
securely.
CAUTION
Be sure to use the correct socket to re-
move the spark plugs. An incorrect socket
can damage the spark plugs.
Iridium-tipped spark plugs (if so
equipped)
It is not necessary to replace iridium-tippedsA
spark plugs as frequently as conventional type
spark plugs because they last much longer. Fol-
low the maintenance log shown in the “NISSAN
Service and Maintenance Guide”. Do not service
iridium-tipped spark plugs by cleaning or regap-
ping.
cAlways replace spark plugs with rec-
ommended or equivalent ones.
WARNING
Be sure the engine and ignition switch are
off and that the parking brake is engaged
securely.
CAUTION
Be sure to use the correct socket to re-
move the spark plugs. An incorrect socket
can damage the spark plugs.
If replacement is required, see your NISSAN
dealer for assistance.
The air cleaner filter should not be cleaned and
reused. Replace it according to the maintenance
log shown in the “NISSAN Service and Mainte-
nance Guide.” When replacing the filter, wipe the
inside of the air cleaner filter housing and the
cover with a damp cloth.
To remove the air cleaner filter, push the tabs
sA
and pull the unit upwardsB.
Type A
LDI0541
AIR CLEANER
8-18Maintenance and do-it-yourself
ZREVIEW COPYÐ2007 Sentra(sen)
Owners ManualÐUSA_English(nna)
11/28/06Ðarosenma
X

WARNING
cOperating the engine with the air
cleaner removed can cause you or oth-
ers to be burned. The air cleaner not
only cleans the air, it stops the flame if
the engine backfires. If it isn’t there, and
the engine backfires, you could be
burned. Do not drive with the air cleaner
removed, and be careful when working
on the engine with the air cleaner
removed.cNever pour fuel into the throttle body or
attempt to start the engine with the air
cleaner removed. Doing so could result
in serious injury.
IN-CABIN MICROFILTER (if so
equipped)
The in-cabin microfilter restricts the entry of air-
borne dust and pollen particles and reduces
some objectionable outside odors. The filter is
located behind the trim panel near the accelera-
tor pedal. Refer to the “NISSAN Service and
Maintenance Guide” for change intervals.
If replacement is required, see your NISSAN
dealer.
CLEANING
If your windshield is not clear after using the
windshield washer or if a wiper blade chatters
when running, wax or other material may be on
the blade or windshield.
Clean the outside of the windshield with a washer
solution or a mild detergent. Your windshield is
clean if beads do not form when rinsing with clear
water.
Clean each blade by wiping it with a cloth soaked
in a washer solution or a mild detergent. Then
rinse the blades with clear water. If your wind-
shield is still not clear after cleaning the blades
and using the wiper, replace the blades.
CAUTION
Worn windshield wiper blades can dam-
age the windshield and impair driver
vision.
Type B
WDI0596
WINDSHIELD WIPER BLADES
Maintenance and do-it-yourself8-19
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

9 Technical and consumer information
Capacities and recommended fuel/lubricants.........9-2
Fuel recommendation...........................9-3
Engine oil and oil filter recommendations..........9-5
Air conditioner system refrigerant and oil
recommendations..............................9-6
Specifications.....................................9-7
Engine........................................9-7
Wheels and tires...............................9-8
Dimensions and weights........................9-9
When traveling or registering your vehicle in
another country..................................9-10
Vehicle identification..............................9-10
Vehicle identification number (VIN) plate.........9-10
Vehicle identification number
(chassis number)..............................9-10
Engine serial number...........................9-11
F.M.V.S.S./C.M.V.S.S. certification label..........9-12
Emission control information label...............9-12
Tire and loading information label................9-12Air conditioner specification label................9-13
Installing front license plate........................9-13
Vehicle loading information........................9-14
Terms........................................9-14
Vehicle load capacity..........................9-14
Loading tips..................................9-16
Measurement of weights.......................9-16
Towing a trailer...................................9-17
Maximum load limits...........................9-17
Towing load/specification.......................9-20
Towing safety.................................9-20
Flat towing....................................9-23
Uniform tire quality grading........................9-24
Emission control system warranty..................9-25
Reporting safety defects (US only).................9-25
Readiness for inspection/maintenance (I/M) test.....9-26
Event data recorders..............................9-27
Owner’s Manual/Service Manual order information . . . 9-27
In the event of a collision.......................9-27
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