Infiniti G35 (2008 year). Manual — part 22
your warranty coverage.
If in doubt about any
servicing, we recommend that it be done by an
INFINITI dealer.
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VQ35HR/VQ37VHR ENGINE
1. Fuse/fusible link holder
2. Battery
3. Engine oil filler cap
4. Brake fluid reservoir
5. Clutch fluid reservoir (Manual Transmis-
sion models)
6. Window washer fluid reservoir
7. Power steering fluid reservoir
8. Air cleaner
9. Radiator filler cap
10. Drive belts
11. Engine coolant reservoir
12. Engine oil dipstick
SSI0345
ENGINE COMPARTMENT CHECK
LOCATIONS
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The engine cooling system is filled at the factory
with a high-quality, year-round, anti-freeze
coolant solution. The antifreeze solution con-
tains rust and corrosion inhibitors, therefore
additional cooling system additives are not
necessary.
WARNING
● Never remove the radiator cap when the en-
gine is hot. Wait until the engine and radia-
tor cool down. Serious burns could be
caused by high pressure fluid escaping from
the radiator. See precautions in “IF YOUR
VEHICLE OVERHEATS” in the “6. In case of
emergency” section of this manual.
● The radiator is equipped with a pressure
type radiator cap. To prevent engine dam-
age, use only a genuine NISSAN radiator cap.
CAUTION
When adding or replacing coolant, be sure to
use only a Genuine NISSAN Long Life
Antifreeze/Coolant (green) or equivalent with
the proper mixture ratio of 50% antifreeze and
50% demineralized or distilled water. The use
of other types of coolant solutions may damage
the engine cooling system.
Outside
temperature
down to
Antifreeze
Demineral-
ized water
or distilled
water
°F
°C
235
230
50%
50%
CHECKING ENGINE COOLANT LEVEL
Check the coolant level
in the reservoir when the
engine is cold. If the coolant level is below MIN
s
2
, open the reservoir tank cap and add coolant
up to the MAX
s
1
level. 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
s
1
.
Tighten the cap securely after adding engine
coolant.
If the cooling system requires coolant fre-
quently, have it checked by an INFINITI dealer.
SDI2043
ENGINE COOLING SYSTEM
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CHANGING ENGINE COOLANT
Major cooling system repairs should be per-
formed by an INFINITI dealer. The service pro-
cedures can be found in the appropriate INFINITI
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 radiator cap when the en-
gine 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 reach of children and
pets.
Engine coolant must be disposed of properly.
Check your local regulations.
CHECKING ENGINE OIL LEVEL
1. Park the vehicle on a level surface and
apply the parking brake.
2. Run the engine until it reaches operating
temperature.
3. Turn off the engine.
Wait more than 15
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 within the range
s
1
.
If the oil level is below
s
2
, remove the oil
filler cap and pour recommended oil
through the opening.
Do not overfill
s
3
.
6. Recheck oil level with the dipstick.
It is normal to add some oil between oil mainte-
nance intervals or during the break-in period,
depending on the severity of operating condi-
tions.
CAUTION
Oil level should be checked regularly. Operat-
ing the engine with an insufficient amount of oil
can damage the engine, and such damage is
not covered by warranty.
CHANGING ENGINE OIL AND FILTER
Vehicle set-up
1. Park the vehicle on a level surface and
apply the parking brake.
2. Run the engine until it reaches operating
temperature.
3. Turn the engine off and wait more than 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.
SDI2045
ENGINE OIL
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5. Remove the plastic engine undercover.
a. Remove the small plastic clip at the center
point of the undercover.
b. Then remove the other bolts that hold the
undercover in place.
CAUTION
Make sure the correct lifting and support
points are used to avoid vehicle damage.
Engine oil and filter
1. Place a large drain pan under the drain
plug.
2. Remove the oil filler cap.
3. Remove the drain plug
s
1
with a wrench
and completely drain the oil.
CAUTION
Be careful not to burn yourself, as the engine oil
is hot.
● Waste oil must be disposed of properly.
● Check your local regulations.
4. (Perform steps 4 to 7 only when the
engine oil filter change is needed.)
Loosen the oil filter
s
2
with an oil filter
wrench. Remove the oil filter by turning it by
hand.
5. Wipe the engine oil filter mounting sur-
face with a clean rag.
Be sure to remove any old rubber gasket re-
maining on the mounting surface of the
engine.
Two-wheel drive (2WD) models
SDI2024
All-wheel drive (AWD) models
SDI2047
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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 ad-
ditionally more than 2/3 turn.
Oil filter tightening torque:
11 to 15 ft-lb
(14.7 to 20.5 N·m)
8. Clean and re-install the drain plug with a
new washer. Securely tighten the drain
plug with a wrench.
Drain plug tightening torque:
22 to 29 ft-lb
(29 to 39 N·m)
Do not use excessive force.
9. Refill engine with recommended oil and
install the oil filler cap securely.
See
“CAPACITIES
AND
RECOMMENDED
FUEL/LUBRICANTS” in the “9. Technical and
consumer information” section 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 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.
11. Turn the engine off and wait more than 15
minutes. Check the oil level with the
dipstick. Add engine oil if necessary.
After the operation
1. Install the engine undercover into position
as the following steps.
a. Pull the center of the small plastic clip
out.
b. Hold the engine undercover into position.
c. Insert the clip through the undercover into
the hole in the frame, then push the
center of the clip in to lock the clip in
place.
d. Install the other bolts that hold the un-
dercover in place. Be careful not to strip
the bolts or over-tighten them.
2. Lower the vehicle carefully to the ground.
3. Dispose of waste oil and filter properly.
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.
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When checking or replacement is required, we
recommend an INFINITI dealer for servicing.
CAUTION
● Use only Genuine NISSAN Matic J ATF. Do not
mix with other fluids.
● Using automatic transmission fluid other
than Genuine NISSAN Matic J ATF will cause
deterioration in driveability and automatic
transmission durability, and may damage
the automatic transmission, which is not
covered by the INFINITI new vehicle limited
warranty.
Check the fluid level in the reservoir.
The fluid level should be checked using the HOT
range (
s
1
: HOT MAX.,
s
2
: HOT MIN.) at fluid
temperatures of 122 to 176°C (50 to 80°F) or
using the COLD range (
s
3
: COLD MAX.,
s
4
:
COLD MIN.) at fluid temperatures of 32 to 86°C
(0 to 30°F).
If the fluid is below the MIN line, add Genuine
NISSAN PSF or equivalent. Remove the cap and
fill through the opening.
CAUTION
● Do not overfill.
● Use Genuine NISSAN PSF or equivalent.
For further brake and clutch fluid information,
see
“CAPACITIES
AND
RECOMMENDED
FUEL/LUBRICANTS” in the “9. Technical and
consumer information” section of this manual.
WARNING
● Use only new fluid from a sealed container.
Old, inferior or contaminated fluid may dam-
age the brake and clutch system.
● Be sure to clean the filler cap before
removing.
CAUTION
Do not spill the fluid on painted surfaces. This
will damage the paint. If fluid is spilled, wash
the surface with water.
SDI1765A
AUTOMATIC TRANSMISSION FLUID
POWER STEERING FLUID
BRAKE AND CLUTCH FLUID
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BRAKE FLUID
Check the fluid level in the reservoir. If the fluid
is below the MIN line
s
2
or the brake warning
light comes on, add Genuine NISSAN Super
Heavy Duty Brake Fluid or equivalent
DOT 3 fluid
up to the MAX line
s
1
. If fluid must be added
frequently, the system should be checked by an
INFINITI dealer.
CLUTCH FLUID
Check the fluid level in the reservoir. If the fluid
level is below the MIN line
s
1
, add Genuine
NISSAN Super Heavy Duty Brake Fluid or equiva-
lent
DOT 3 fluid up to the MAX line
s
2
. If fluid
must be added frequently, the system should
be checked by an INFINITI dealer.
WARNING
Antifreeze is poisonous and should be stored
carefully in marked containers out of the reach
of children.
Fill the window washer fluid reservoir periodi-
cally. Add window washer fluid when the low
window washer fluid warning light comes on.
To fill the window washer fluid reservoir, lift the
cap off the reservoir tank and pour the window
washer fluid into the tank opening.
Add a washer solvent to the washer for better
cleaning. In the winter season, add a wind-
shield washer antifreeze. Follow the manufac-
turer’s instructions for the mixture ratio.
SDI2025
SDI1906A
SDI2027
WINDOW WASHER FLUID
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Refill the reservoir more frequently when driv-
ing conditions require an increased amount of
window washer fluid.
Recommended fluid is Genuine NISSAN Wind-
shield Washer Concentrate Cleaner & Antifreeze
or equivalent.
CAUTION
● Do not substitute engine anti-freeze coolant
for window washer solution. This may result
in damage to the paint.
● Do not fill the window washer reservoir tank
with washer fluid concentrates at full
strength. Some methyl alcohol based
washer fluid concentrates may permanently
stain the grille if spilled while filling the win-
dow washer reservoir tank.
● Pre-mix washer fluid concentrates with wa-
ter to the manufacturer’s recommended lev-
els before pouring the fluid into the window
washer reservoir tank. Do not use the win-
dow washer reservoir tank to mix the washer
fluid concentrate and water.
● Keep the battery surface clean and dry.
Clean the battery with a solution of baking
soda and water.
● Make certain the terminal connections are
clean and securely tightened.
● If the vehicle is not to be used for 30 days or
longer, disconnect the negative (
2) battery
terminal cable to prevent discharging it.
COUPE
CAUTION
When the battery cable is removed from the
battery terminal, do not close either of front
doors. The automatic window adjusting func-
tion will not work, and the side roof panel may
be damaged.
To disconnect the negative (
2) battery terminal,
perform the procedure in the following order.
Otherwise, the window and the side roof panel
may contact and be damaged.
1. Close the windows.
2. Open the hood.
3. Close and lock all the doors.
4. Disconnect the negative (
2) battery termi-
nal.
5. Securely close the hood.
To connect the negative (
2) battery terminal,
perform the procedure in the following order.
Otherwise, the window and the side roof panel
may contact and be damaged.
1. Unlock and open the driver side door. Do
not close the door.
2. Open the hood.
3. Connect the negative (
2) battery terminal.
Then close the hood.
4. Fully open the driver side door window.
5. Close the driver side door and the win-
dow.
SEDAN AND COUPE
WARNING
● Do not expose the battery to flames or elec-
trical sparks. Hydrogen gas generated by
the battery is explosive. Do not allow battery
fluid to contact your skin, eyes, fabrics, or
painted surfaces. After touching a battery or
battery cap, do not touch or rub your eyes.
Thoroughly wash your hands. If the acid con-
tacts your eyes, skin or clothing, immedi-
ately flush with water for at least 15 minutes
and seek medical attention.
BATTERY
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● Do not operate the vehicle if the fluid in the
battery is low. Low battery fluid can cause a
higher load on the battery which can gener-
ate heat, reduce battery life, and in some
cases lead to an explosion.
● When working on or near a battery, always
wear suitable eye protection and remove all
jewelry.
● Battery posts, terminals and related acces-
sories contain lead and lead compounds.
Wash hands after handling.
● Keep the battery out of the reach of children.
Check the fluid level in each cell (Remove the
battery cover if it is necessary). It should be
between the UPPER LEVEL
s
1
and LOWER LEVEL
s
2
lines.
If it is necessary to add fluid, add only distilled
water to bring the level to the indicator in each
filler opening.
Do not overfill.
1. Remove the cell plugs
s
A
.
2. Add distilled water up to the UPPER LEVEL
s
1
line.
If the side of the battery is not clear, check
the distilled water level by looking directly
above the cell; the condition
s
1
indicates
OK and the conditions
s
2
needs more to be
added.
3. Tighten cell plugs
s
A
.
Vehicles operated in high temperatures or un-
der severe conditions require frequent checks
of the battery fluid level.
DI0137MA
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JUMP STARTING
If jump starting is necessary, see “JUMP START-
ING” in the “6. In case of emergency” section. If
the engine does not start by jump starting, the
battery may have to be replaced. Contact an
INFINITI dealer.
CAUTION
● Do not ground accessories directly to the
battery terminal. Doing so will bypass the
variable voltage control system and the ve-
hicle battery may not charge completely.
● Use electrical accessories with the engine
running to avoid discharging the vehicle
battery.
The variable voltage control system measures
the amount of electrical discharge from the
battery and controls voltage generated by the
generator.
1. Power steering fluid pump
2. Alternator
3. Crankshaft pulley
4. Air conditioner compressor
5. Drive belt auto-tensioner
WARNING
Be sure the ignition switch is in the OFF or LOCK
position before servicing drive belts. The en-
gine could rotate unexpectedly.
VQ35HR engine
SDI2152
VARIABLE VOLTAGE CONTROL SYSTEM
DRIVE BELTS
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1. Visually inspect each belt for signs of
unusual wear, cuts, fraying or looseness.
If the belt is in poor condition or loose,
have it replaced or adjusted by an INFINITI
dealer.
2. Have the belts checked regularly for con-
dition and tension in accordance with the
maintenance schedule in your “INFINITI
Service and Maintenance Guide”.
WARNING
Be sure the engine and the ignition switch are
off and that the parking brake is engaged
securely.
CAUTION
Be sure to use the correct socket to remove the
spark plugs. An incorrect socket can damage
the spark plugs.
REPLACING SPARK PLUGS
If replacement is required, see an INFINITI
dealer for servicing.
Iridium-tipped spark plugs
It is not necessary to replace the iridium-tipped
spark plugs as frequently as the conventional
type spark plugs since they will last much
longer. Follow the maintenance schedule in
“INFINITI Service and Maintenance Guide”, but
do not reuse them by cleaning or regapping.
Always replace spark plugs with recommended
or equivalent ones.
VQ37VHR engine
SDI2119
SDI2020
SPARK PLUGS
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Remove the retainers
s
1
as illustrated and pull
out the filter element
s
2
.
The filter element should not be cleaned and
reused. Replace it according to the mainte-
nance intervals. See “INFINITI Service and Main-
tenance Guide” for maintenance intervals.
When replacing the filter, wipe the inside of the
air cleaner housing and the cover with a damp
cloth.
WARNING
● Operating the engine with the air cleaner
removed can cause you or others to be
burned. The air cleaner not only cleans the
air, it stops 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 work-
ing on the engine with the air cleaner
removed.
● Never pour fuel into the throttle body or at-
tempt to start the engine with the air cleaner
removed. Doing so could result in serious
injury.
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 wind-
shield 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 deter-
gent. Then rinse the blade with clear water. If
your windshield is still not clear after cleaning
the blades and using the wiper, replace the
blades.
Worn windshield wiper blades can damage the
windshield and impair driver vision.
SDI2033
AIR CLEANER
WINDSHIELD WIPER BLADES
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REPLACING
Replace the wiper blades if they are worn.
1. Pull the wiper arm.
2. Push the release tab
s
A
, and then move
the wiper blade down the wiper arm
s
1
while pushing the release tab to remove.
3. Insert the new wiper blade onto the wiper
arm until a click sounds.
4. Rotate the wiper blade so the dimple is in
the groove.
CAUTION
● After wiper blade replacement, return the
wiper arm to its original position;
otherwise it may be damaged when the hood
is opened.
● Make sure the wiper blades contact the
glass; otherwise the arm may be damaged
from wind pressure.
If you wax the surface of the hood, be careful
not to let wax get into the washer nozzle
s
A
.
This may cause clogging or improper wind-
shield washer operation. If wax gets into the
nozzle, remove it with a needle or small pin
s
B
.
SDI2048
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If the brakes do not operate properly, have the
brakes checked by an INFINITI dealer.
SELF-ADJUSTING BRAKES
Your vehicle is equipped with self-adjusting
brakes.
The disc-type brakes self-adjust every time the
brake pedal is applied.
WARNING
See an INFINITI 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 replacement, it will make a high
pitched scraping or screeching sound when the
vehicle is in motion 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 sys-
tem.
Proper brake inspection intervals should be fol-
lowed. For additional information, see the main-
tenance log section of your “INFINITI Service
and Maintenance Guide” for maintenance inter-
vals.
ENGINE COMPARTMENT
CAUTION
Never use a fuse of a higher or lower amperage
rating than that specified on the fuse box cover.
This could damage the electrical system or
cause a fire.
If any electrical equipment does not operate,
check for an open fuse.
1. Be sure the ignition switch is pushed to
the OFF or LOCK position and the head-
light switch is turned to OFF.
SDI1479A
BRAKES
FUSES
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2. Open the engine hood and remove the
cover on the battery and the fuse/fusible
link holder.
3. Remove the fuse/fusible link holder
cover.
4. Remove the fuse with the fuse puller.
5. If the fuse is open
s
A
, replace it with a
new fuse
s
B
. Spare fuses are stored in the
passenger compartment fuse box.
6. If a new fuse also opens, have the elec-
trical system checked and repaired by an
INFINITI dealer.
Fusible links
If any electrical equipment does not operate
and fuses are in good condition, check the
fusible links. If any of these fusible links are
melted, replace only with genuine INFINITI
parts.
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