Page 18 of 466
SSI0345
VQ37VHR ENGINE
1. Fuse/fusible link holder (P.8-22)
2. Battery (P.8-15)
3. Engine oil filler cap (P.8-10)
4. Brake fluid reservoir (P.8-13)
5. Clutch fluid reservoir (Manual Trans-mission models) (P.8-13)
6. Window washer fluid reservoir (P.8-14)
7. Power steering fluid reservoir (P.8-13)
8. Air cleaner (P.8-19)
9. Radiator filler cap (P.8-8) 10. Drive belts location (P.8-18)
11. Engine Coolant reservoir (P.8-8)
12. Engine oil dipstick (P.8-10)
Illustrated table of contents0-11
ENGINE COMPARTMENT
Page 375 of 466

6-16In case of emergency
9. After starting your engine, carefullydisconnect the negative cable and then
the positive cable (
*4?*3?*2?
*1).
10. Replace the vent caps (if so equipped). Be sure to dispose of the cloth used to
cover the vent holes as it may be
contaminated with corrosive acid. Do not attempt to start the engine by
pushing.CAUTION
.
Automatic transmission models cannot
be push-started or tow-started. Attempt-
ing to do so may cause transmission
damage.
. Three way catalyst equipped models
should not be started by pushing since
the three way catalyst may be damaged.
. Never try to start the vehicle by towing
it; when the engine starts, the forward
surge could cause the vehicle to collide
with the tow vehicle.
CAUTION
.Do not continue to drive if your vehicle
overheats. Doing so could cause engine
damage or a vehicle fire.
. To 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.
. Do not open the hood if steam is coming
out.
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:
1. Move the vehicle safely off the road,
apply the parking brake.
2. Automatic Transmission model:
Move the shift lever to the P (Park)
position.
Manual Transmission model:
Move the shift lever to the N (Neutral)
position.
PUSH STARTING IF YOUR VEHICLE OVERHEATS
Page 376 of 466

Do not stop the engine.
3. Turn off the air conditioner. Open all the windows, move the heater or air condi-
tioner temperature control to maximum
hot and fan control to high speed.
4. If engine overheating is caused by climbing a long hill on a hot day, run
the engine at a fast idle (approximately
1,500 rpm) until the temperature gauge
indication returns to normal.
5. Get out of the vehicle. Look and listen for steam or coolant escaping from the
radiator before opening the hood. (If
steam or coolant is escaping, turn off
the engine.) Do not open the hood
further until no steam or coolant can be
seen.
6. Open the engine hood.
WARNING
If steam or water is coming from the engine,
stand clear to prevent getting burned.
7. Visually check the drive belt for damage or looseness. Also check if the cooling
fan is running. The radiator hoses and
radiator should not leak water. If cool- ant is leaking or the cooling fan does
not run, stop the engine.
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.
8. After the engine cools down, check the
coolant level in the reservoir with the
engine running. Add coolant to the
reservoir if necessary. Have your vehi-
cle repaired at the nearest INFINITI
retailer. When towing your vehicle, all State (Pro-
vincial in Canada) and local regulations for
towing must be followed. Incorrect towing
equipment could damage your vehicle.
Towing instructions are available from an
INFINITI retailer. Local service operators are
familiar with the applicable laws and
procedures for towing. To assure proper
towing and to prevent accidental damage
to your vehicle, INFINITI recommends that
you have a service operator tow your
vehicle. It is advisable to have the service
operator carefully read the following pre-
cautions.
WARNING
.
Never ride in a vehicle that is being
towed.
. Never get under your vehicle after it has
been lifted by a tow truck.
CAUTION
.When towing, make sure that the trans-
mission, axles, steering system and
drivetrain are in working condition. If
any unit is damaged, dollies must be
In case of emergency6-17
TOWING YOUR VEHICLE
Page 396 of 466
SSI0345
VQ37VHR ENGINE
1. Fuse/fusible link holder
2. Battery
3. Engine oil filler cap
4. Brake fluid reservoir
5. Clutch fluid reservoir (Manual Trans-mission models)
6. Window washer fluid reservoir
7. Power steering fluid reservoir
8. Air cleaner
9. Radiator filler cap
10. Drive belt location 11. Engine coolant reservoir
12. Engine oil dipstick
Maintenance and do-it-yourself8-7
ENGINE COMPARTMENT CHECK LOCATIONS
Page 397 of 466

8-8Maintenance and do-it-yourself
The engine cooling system is filled at the
factory with a pre-diluted mixture of 50%
Genuine NISSAN Long Life Antifreeze/Cool-
ant (blue) and 50% water to provide year-
round anti-freeze and coolant protection.
The antifreeze solution contains rust and
corrosion inhibitors. Additional engine
cooling system additives are not neces-
sary.
WARNING
.Never remove the radiator or 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. See precautions in “If your
vehicle overheats” (P.6-16) of this man-
ual.
. The radiator is equipped with a pressure
type radiator cap. To prevent engine
damage, use only a genuine NISSAN
radiator cap.
CAUTION
.Never use any cooling system additives
such as radiator sealer. Additives 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 equiva-
lent. Genuine NISSAN Long Life Anti-
freeze/Coolant (blue) is pre-diluted to
provide antifreeze protection to −348F
(−378C). If additional freeze protection is
needed due to weather where you
operate your vehicle, add Genuine
NISSAN Long Life Antifreeze/Coolant
(blue) concentrate following the direc-
tions on the container. If an equivalent
coolant other than Genuine NISSAN Long
Life Antifreeze/Coolant (blue) is used,
follow the coolant manufacturer’ s in-
structions to maintain minimum anti-
freeze protection to −348F(−378C). The
use of other types of coolant solutions
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 coolant.
Refer to the INFINITI Service and Main-
tenance Guide for more details.
ENGINE COOLING SYSTEM
Page 398 of 466

SDI2043
CHECKING ENGINE COOLANT LEVEL
Check the coolant levelin the reservoir
tank when the engine is cold. If the coolant
level is below the MIN level
*2, open the
reservoir tank cap and add coolant up to
the MAX level
*1. If the reservoir tank is
empty, check the coolant level in the
radiator when 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
tank up to the MAX level
*1.
Tighten the cap securely after adding
engine coolant. If the cooling system frequently requires
coolant, have it checked by an INFINITI
retailer.
CHANGING ENGINE COOLANT
Major cooling system repairs should be
performed by an INFINITI retailer. The
service procedures can be found in the
appropriate INFINITI Service Manual.
Improper servicing can result in reduced
heater performance and engine overheat-
ing.
WARNING
.
To avoid the danger of being scalded,
never change the coolant when the
engine is hot.
. Never remove the radiator cap when the
engine is hot. Serious burns could be
caused by high pressure fluid escaping
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 children
and pets.
Engine coolant must be disposed of
properly. Check your local regulations.
Maintenance and do-it-yourself8-9