Page 417 of 508
MR20DD engine
1. Engine coolant reservoir
2. Windshield-washer fluid reservoir
3. Inverter coolant reservoir
4. Engine oil dipstick
5. Engine oil fill cap
6. Brake fluid reservoir
7. Air cleaner
8. Fuse box
9. Radiator cap
NOTE:
The 12–volt battery is located in the rear
cargo area.
LDI3135
ENGINE COMPARTMENT CHECK
LOCATIONS
Do-it-yourself8-3
Page 418 of 508

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
protection. The antifreeze solution con-
tains rust and corrosion inhibitors. Addi-
tional engine cooling system additives are
not necessary.
WARNING
∙ Never remove the radiator or coolantreservoir 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 informa-
tion on precautions, refer to “If your
vehicle overheats” in the “In case of
emergency ” section of this manual.
∙ The radiator is equipped with a pres- sure type radiator cap. To prevent en-
gine damage, use only a Genuine
NISSAN radiator cap.
CAUTION
∙ Never use any additives in the coolantsuch as radiator sealer in the cooling
system. This may cause damage to
electrical equipment such as the mo-
tor and inverter, and also to engine
and transmission.
∙ 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 anti-
freeze protection to -34° F (-37° C). The use of other types of coolant solu-
tions other than Genuine NISSAN Long
Life Antifreeze/Coolant (blue) or
equivalent may damage the engine
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),
including Genuine NISSAN Long Life
Antifreeze/Coolant (green), or the use
of non-distilled water will reduce the
life expectancy of the factory-fill cool-
ant. For additional information, refer
to the "Maintenance and schedules"
section of this manual.
ENGINE COOLING SYSTEM
8-4Do-it-yourself
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CHECKING ENGINE COOLANT
LEVEL
Check the coolant levelin the reservoir
when the engine is cold. If the coolant
level is below the MIN level
B, add coolant
to the MAX level
A. If the reservoir is empty,
check the coolant level in the radiator
when the engine is cold. If there is insuffi-
cient 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
A. 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, refer to the "Mainte-
nance and schedules" section of this
manual.
The engine coolant reservoir is a pres-
surized tank. When installing the cap,
tighten it until a clicking sound is heard.
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, refer to “En-
gine compartment check locations” in this
section.
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 over-
heating.
WARNING
∙ To avoid the danger of being scalded,
never change the coolant when the
engine is hot.
∙ Never remove the radiator or engine coolant reservoir cap when the en-
gine is hot. Serious burns could be
caused by high pressure fluid escap-
ing from the radiator.
∙ 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.
LDI2659
Do-it-yourself8-5
Page 420 of 508

The inverter 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
protection. The antifreeze solution con-
tains rust and corrosion inhibitors. Addi-
tional inverter cooling system additives are
not necessary.
WARNING
∙ Never remove the coolant reservoircap when the engine and inverter are
hot. Wait until the engine and inverter
cool down. Serious burns could be
caused by high pressure fluid escap-
ing from the reservoir.
∙ The inverter reservoir is equipped with a pressure type cap. To prevent
engine and inverter damage, use only
a Genuine NISSAN inverter reservoir
cap.
CAUTION
∙ Never use any additives in the coolantsuch as radiator sealer in the cooling
system. This may cause damage to
electrical equipment such as the mo-
tor and inverter, as well as the engine
and transmission.
∙ When adding or replacing coolant, be sure to use only a 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 an-
tifreeze protection is needed due to
weather where you operate your ve-
hicle, add Genuine NISSAN Long Life
Antifreeze/Coolant (blue). The use of
other types of coolant solutions other
than Genuine NISSAN Long Life
Antifreeze/Coolant (blue) or equiva-
lent, may damage the inverter cooling
system. ∙ The life expectancy of the factory-fill
coolant is 125,000 miles (200,000 km)
or 15 years. Mixing any other type of
coolant other than Genuine NISSAN
Long Life Antifreeze/Coolant (blue),
including Genuine NISSAN Long Life
Antifreeze/Coolant (green), or the use
on non-distilled water will reduce the
life expectancy of factory-fill coolant.
For additional information, refer to
the "Maintenance and schedules"
section of this manual.
INVERTER COOLING SYSTEM
8-6Do-it-yourself
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CHECKING INVERTER COOLANT
LEVEL
Check the coolant levelin the reservoir
when the engine and inverter are cold.
The coolant level should be between the
MIN level
B, add coolant to the MAX level
A.
If the inverter cooling system frequently
requires coolant, have it checked. It is
recommended that you visit a NISSAN
dealer for this service.
CHANGING INVERTER COOLANT
It is recommended that major cooling sys-
tem repairs be done by a NISSAN dealer.
The service procedure can be found in the
NISSAN Service Manual.
Improper servicing can result in inverter
overheating.
WARNING
∙ To avoid the danger of being scalded, never change the coolant when the
inverter is hot.
∙ Never remove the cap when the in- verter is hot. Serious burns could be
caused by high pressure fluid escap-
ing from the inverter coolant
reservoir.
∙ 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.
CHECKING ENGINE OIL LEVEL
1. Park the vehicle on a level surface and apply the parking brake.
2. Start the hybrid system and let it idle until it reaches operating temperature.
3. Turn off the hybrid system. 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.
LDI3078LDI3053
ENGINE OIL
Do-it-yourself8-7
Page 422 of 508
5. Remove the dipstick again and checkthe oil level. It should be between the H
(High) and L (Low) marks
B. This is the
normal operating oil level range. If the
oil level is below the L (Low) mark
A,
remove the oil filler cap and pour rec-
ommended oil through the opening.
Do not overfill
C.
6. Recheck oil level with the dipstick.
It is normal to add some oil between oil
maintenance intervals or during the
break-in period, depending on the sever-
ity of operating conditions.
CAUTION
Oil level should be checked regularly.
Operating the engine with an insuffi-
cient amount of oil can damage the en-
gine, and such damage is not covered
by warranty.
CHANGING ENGINE OIL
1. Park the vehicle on a level surface and apply the parking brake.
LDI0371
LDI3305
8-8Do-it-yourself
Page 423 of 508

2. Start the hybrid system and let it idleuntil it reaches operating temperature,
then turn it off.
3. Remove the oil filler cap
Aby turning it
counterclockwise.
4. Place a large drain pan under the drain plug
B.
5. Remove the drain plug
Bwith a
wrench by turning it counterclockwise
and completely drain the oil.
If the oil filter is to be changed, remove
and replace it at this time. For addi-
tional information, refer to “Changing
engine oil filter” in this section.
∙ Waste oil must be disposed of prop-
erly.
∙ Check your local regulations.
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.
CAUTION
Be careful not to burn yourself. The en-
gine oil may be hot.
6. Clean and reinstall the drain plug and a new washer. Securely tighten the drain
plug with a wrench. Do not use exces-
sive force.
Drain plug tightening torque: 25 f t-lb (34 N·m) 7. Refill engine with recommended oil
through the oil filler opening, then install
the oil filler cap securely.
For additional information, refer to
“Recommended fluids/lubricants and
capacities” in the “Technical and con-
sumer information” section of this
manual for drain and refill capacity.
The drain and refill capacity depends
on the oil temperature and drain time.
Use these specifications for reference
only. Always use the dipstick to deter-
mine when the proper amount of oil is
in the engine.
8. Start the hybrid system. Check for leak- age around the drain plug and oil filter.
Correct as required.
9. Turn the hybrid system off and wait more than 10 minutes. Check the oil
level with the dipstick. Add engine oil if
necessary.
Do-it-yourself8-9
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CHANGING ENGINE OIL FILTER
1. Park the vehicle on a level surface andapply the parking brake.
2. Turn the hybrid system off.
3. Place a large drain pan under the oil filter
B.
4. Remove oil filter
Bwith 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 en-
gine oil may be hot.
5. Wipe the engine oil filter sealing surface with a clean rag.
CAUTION
∙ Be sure to remove any old gasketmaterial remaining on the sealing
surface of the engine. Failure to do
so could lead to an oil leak and en-
gine 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 on the oil filter until a slight resis- tance is felt, then tighten an additional
2/3 turn.
8. Start the hybrid system and check for leakage around the oil filter. Correct as
required. 9. Turn the hybrid system off and wait
more than 10 minutes. Check the oil
level. Add engine oil if necessary.
LDI3085
8-10Do-it-yourself