2023 NISSAN SENTRA Owners Manual

2.0L 4 cylinder (MR20DD engine model)
1. Engine oil filler cap
2. Brake and clutch (if so equipped) fluidreservoir
3. Fuse and relay box
4. Battery
5. Air cleaner
6. Engine oil dipstick
7. Drive belt location
8. Windshield-washer fluid reservoir
9. Engine coolant reservoir
NOTE:
Your vehicle may not be equipped with
an engine cover.
LDI3477
ENGINE COMPARTMENT CHECK
LOCATIONS
Do-it-yourself8-3

The engine cooling system is filled at the
factory with a pre-diluted mixture of 50%
Genuine NISSAN Long Life Antifreeze/
Coolant (blue) and 50% water to provide
year-round antifreeze and coolant protec-
tion. The antifreeze solution contains rust
and corrosion inhibitors. Additional engine
cooling system additives are not
necessary.
WARNING
• Never remove the coolant reservoir
cap when the engine is hot. Wait until
the engine and radiator cool down.
Serious burns could be caused by
high pressure fluid escaping from the
radiator. For additional information
on precautions, see “If your vehicle
overheats” (P. 6-11).
• The coolant reservoir is equipped
with a pressure type coolant reser-
voir cap. To prevent engine damage,
use only a Genuine NISSAN coolant
reservoir cap.
CAUTION
• Never use any cooling system addi-
tives such as radiator sealer. Addi-
tives may clog the cooling system
and cause damage to the engine,
transmission and/or cooling system.
• When adding or replacing coolant, be
sure to use only Genuine NISSAN
Long Life Antifreeze/Coolant (blue)
or equivalent. Genuine NISSAN Long
Life Antifreeze/Coolant (blue) is pre-
diluted to provide antifreeze protec-
tion to -34° F (-37° C). If additional
freeze protection is needed due to
weather where you operate your ve-
hicle, add Genuine NISSAN Long Life
Antifreeze/Coolant (blue) concen-
trate following the directions on the
container. If an equivalent coolant
other than Genuine NISSAN Long Life
Antifreeze/Coolant (blue) is used, fol-
low the coolant manufacturer’s in-
structions to maintain minimum an-
tifreeze protection to -34° F (-37° C).
The use of other types of coolant so-
lutions other than Genuine NISSAN
Long Life Antifreeze/Coolant (blue)
or equivalent may damage the en-
gine cooling system. •
The life expectancy of the factory-fill
coolant is 105,000 miles (168,000 km)
or 7 years. Mixing any other type of
coolant other than Genuine NISSAN
Long Life Antifreeze/Coolant (blue)
(or equivalent cooling), including
Genuine NISSAN Long Life
Antifreeze/Coolant (green), or the
use of non-distilled water may re-
duce the life expectancy of the
factory-fill coolant. For additional in-
formation, see the “Maintenance and
schedules” section of this manual.
ENGINE COOLING SYSTEM
8-4Do-it-yourself

CHECKING ENGINE COOLANT
LEVEL
Check the coolant levelin the reservoir
when the engine is cold. If the coolant
level is below the MIN level
OB, add coolant
to the MAX level
OA.
This vehicle contains Genuine NISSAN Long
Life Antifreeze/Coolant (blue). The life ex-
pectancy of the factory-fill coolant is
105,000 miles (168,000 km) or 7 years. Mixing
any other type of coolant or the use of
non-distilled water will reduce the life ex-
pectancy of the factory-fill coolant. For ad- ditional information, see the “Maintenance
and schedules” section of this manual.
If the cooling system frequently requires
coolant, have it checked. It is recom-
mended that you visit a NISSAN dealer
for this service.
For additional information on the location
of the engine coolant reservoir, see “Engine
compartment check locations” (P. 8-3).
CHANGING ENGINE COOLANT
A NISSAN dealer can change the engine
coolant. The service procedure can be
found in the NISSAN Service Manual.
Improper servicing can result in reduced
heater performance and engine
overheating.
WARNING
• To avoid the danger of being scalded,
never change the coolant when the
engine is hot.
• Never remove the engine coolant
reservoir cap when the engine is hot.
Serious burns could be caused by
high pressure fluid escaping from the
system. •
Avoid direct skin contact with used
coolant. If skin contact is made, wash
thoroughly with soap or hand
cleaner as soon as possible.
• Keep coolant out of the reach of chil-
dren and pets.
Engine coolant must be disposed of prop-
erly. Check your local regulations.
LDI3495
Do-it-yourself8-5

CHECKING ENGINE OIL LEVEL
1. Park the vehicle on a level surface andapply the parking brake.
2. Start the engine and let it idle until it reaches operating temperature.
3. Turn off the engine. Wait more than 10
minutes for the oil to drain back into
the oil pan.
4. Remove the dipstick and wipe it clean. Reinsert it all the way. 5. Remove the dipstick again and check
the oil level. It should be between the H
(High) and L (Low) marksOB. This is the
normal operating oil level range. If the oil
level is below the L (Low) mark
OA,re-
move the oil filler cap and pour recom-
mended oil through the opening. Do not
overfill
OC.
6. Recheck oil level with the dipstick.
CAUTION
• Oil level should be checked regularly.
Operating the engine with an insuffi-
cient amount of oil can damage the
engine, and such damage is not cov-
ered by warranty.
• It is normal to add some oil between
oil maintenance intervals or during
the break-in period, depending on
the severity of operating conditions.
Make sure to follow the engine oil changing
intervals in the maintenance booklet. Op-
erating under the following conditions may
require more frequent oil change:
• repeated short distance driving
• driving in dusty conditions
• stop and go commuting.
CHANGING ENGINE OIL AND OIL
FILTER
For additional information on engine oil
and oil filter change, refer to the instruc-
tions outlined in this section.
LDI3487LDI0371
ENGINE OIL
8-6Do-it-yourself

Vehicle set-up
LDI3488
O1Oil filler cap
LDI3507
O2Oil drain plug
LDI3508
O3Oil filter
Do-it-yourself8-7

1. Park the vehicle on a level surface andapply the parking brake.
2. Run the engine until it reaches operating temperature.
3. Turn the engine off and wait for 15 minutes.
4. Raise and support the vehicle using a suitable floor jack and safety jack
stands.
• Place the safety jack stands under the vehicle jack-up points.
• A suitable adapter should be attached to the jack stand saddle.
CAUTION
Make sure the correct lif ting and sup-
port points are used to avoid vehicle
damage.
Removal of under-engine
protectors
1. Remove fastenersOAand engine
protector.
Engine oil and filter
1. Place a large drain pan under the drain plug and oil filter.
2. Remove the oil filler cap.
3. Remove the drain plug with a wrench by turning it counterclockwise and com-
pletely drain the oil.
LDI3510
O4Under engine protector
LDI3509
Under-engine protector
8-8Do-it-yourself

CAUTION
Be careful not to burn yourself, as the
engine oil is hot.
WARNING
• Prolonged and repeated contact
with used engine oil may cause skin
cancer.
• Try to avoid direct skin contact with
used oil. If skin contact is made, wash
thoroughly with soap or hand
cleaner as soon as possible.
• Keep used engine oil out of reach of
children.
4. Loosen the oil filter with an oil filter wrench by turning it counterclockwise.
Remove the oil filter by turning it by
hand.
5. Wipe the engine oil filter mounting sur- face with a clean rag.
CAUTION
Be sure to remove any old gasket ma-
terial remaining on the sealing surface
of the engine. Failure to do so could
lead to an oil leak and engine damage. •
The dipstick must be inserted in
place to prevent oil spillage from the
dipstick hole when filling the engine
with oil.
6. Coat the gasket on the new filter with clean engine oil.
7. Screw in the oil filter clockwise until a slight resistance is felt, then tighten addi-
tionally more than 2/3 turn.
Oil filter tightening torque: 11 to 15 f t-lb (14.7 to 20.6 N·m)
8. Clean and re-install the drain plug with a new washer. Securely tighten the drain
plug with a wrench. Do not use exces-
sive force.
Drain plug tightening torque: 22 to 29 f t-lb (29.4 to 39.2 N·m)
9. Refill the engine with the recommended oil through the oil filler opening, and in-
stall the oil filler cap securely.
For additional information about drain and
refill capacity, see “Recommended fluids/
lubricants and capacities” (P. 10-2). The
drain and refill capacity depends on the oil
temperature and drain time. Use these
specifications for reference only. Always use the dipstick to determine the proper
amount of oil in the engine.
10. Start the engine and check for leakage
around the drain plug and the oil filter.
Correct as required. Turn the engine off
and wait more than 15 minutes. Check
the oil level with the dipstick. Add en-
gine oil if necessary.
Af ter the operation
1. Reinstall under engine protector in re-verse order.
2. Lower the vehicle carefully to the ground.
3. Reset oil and oil filter maintenance re- minder and oil control system. For addi-
tional information, see “Vehicle informa-
tion display 4.2 inch (11 cm) Type A”
(P. 2-18) or “Vehicle information display 7
inch (18 cm) Type B” (P. 2-32).
• Dispose of waste oil and filter properly.
• Check your local regulations.
Do-it-yourself8-9

CAUTION
• NISSAN recommends using Genuine
NISSAN CVT Fluid NS-3 (or equiva-
lent) ONLY in NISSAN CVTs. Do not mix
with other fluids.
• Do not use Automatic Transmission
Fluid (ATF) or manual transmission
fluid in a NISSAN CVT, as it may dam-
age the CVT. Damage caused by the
use of fluids other than as recom-
mended is not covered under
NISSAN's New Vehicle Limited War-
ranty outlined in your Warranty Infor-
mation Booklet.
• Using fluids that are not equivalent
to Genuine NISSAN CVT Fluid NS-3
may also damage the CVT. Damage
caused by the use of fluids other than
as recommended is not covered un-
der NISSAN's New Vehicle Limited
Warranty outlined in your Warranty
Information Booklet.
When checking or replacement of CVT fluid
is required, it is recommended that you visit
a NISSAN dealer for servicing. For additional brake and clutch fluid speci-
fication information, see “Recommended
fluids/lubricants and capacities” (P. 10-2).
WARNING
• Use only new fluid from a sealed con-
tainer. Old, inferior or contaminated
fluid may damage the brake and
clutch (if so equipped) systems. The
use of improper fluids can damage
the brake and clutch system and af-
fect the vehicle's stopping ability.
• Clean the filler cap before removing.
• Brake and clutch fluid is poisonous
and should be stored carefully in
marked containers out of reach of
children.
CAUTION
Do not spill the fluid on any painted sur-
faces. This will damage the paint. If fluid
is spilled, immediately wash the sur-
face with water.
BRAKE FLUID
Check the fluid level in the reservoir. If the
level is below the MIN line
O1, or the brake
warning light comes on, add Genuine
NISSAN Brake Fluid or equivalent DOT 3
fluid up to the MAX line
O2. If fluid must be
added frequently, the system should be
checked. It is recommended that you visit a
NISSAN dealer for this service.
LDI3490
CONTINUOUSLY VARIABLE
TRANSMISSION (CVT) FLUID (if so
equipped) BRAKE AND CLUTCH (if so equipped)
FLUID
8-10Do-it-yourself