2003 INFINITI G35 maintenance

CHECKING ENGINE OIL LEVEL 1. Park the vehicle on a level surface and
apply parking brake.
2. Run the engine 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 and L
marks. If the oil level is below the L mark,
remove the oil filler cap and pour recom-
mended oil through the opening. Do not
overfill.
6. Recheck oil level with dipstick.
It is normal to add some oil between oil
maintenance intervals or during the
break-in period, depending on the severity
of operating conditions. CAUTION Oil level should be checked regularly.
Operating with insufficient amount of oil
can damage the engine, and such dam-
age is not covered by warranty.SDI1386 SDI1402
ENGINE OIL
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CHANGING ENGINE OIL AND
FILTER Change the engine oil and filter according to
the maintenance intervals shown in the ª9.
Maintenanceº section.
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 10
minutes.
4. Raise and support the vehicle using a suit-
able floor jack and safety jack stands.
O Place the safety jack stands under the
vehicle jack-up points.
O A suitable adapter should be attached to
the jack stand saddle.
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 dam-
age.
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 with a wrench and
completely drain the oil.
CAUTION Be careful not to burn yourself, as the
engine oil is hot.
O Waste oil must be disposed of properly. SDI1520
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unexpectedly.
1. Visually inspect each belt for signs of un-
usual wear, cuts, fraying, oil adhesion or
looseness. If the belt is in poor condition or
loose, have it replaced or adjusted by your
INFINITI retailer.
2. Have the belts checked regularly for condi-
tion and tension in accordance with the
maintenance schedule in this manual.
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
remove the spark plugs. An incorrect
socket can damage the spark plugs.
REPLACING SPARK PLUGS If replacement is required, see your INFINITI
retailer for servicing.
Platinum-tipped spark plugs It is not necessary to replace the platinum-
tipped spark plugs as frequently as the con-
ventional type spark plugs since they will last
much longer. Follow the maintenance sched-
ule but, do not reuse them by cleaning or
regapping.
Always replace with recommended
platinum-tipped spark plugs. SDI0145
SPARK PLUGS
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If maintenance is required, see your INFINITI
retailer for servicing.
The filter element should not be cleaned and
reused. Replace it according to the mainte-
nance intervals. See ªPeriodic maintenance
schedulesº in the ª9. Maintenanceº section for
maintenance intervals. When replacing the
filter, wipe the inside of the air cleaner housing
and the cover with a damp cloth.
WARNINGO 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 is not
there, and the engine backfires, you
could be burned. Do not drive with
the air cleaner removed and be care-
ful when working on the engine with
the air cleaner removed.
O Never pour fuel into the throttle body
or attempt to start the engine with the
air cleaner removed. Doing so could
result in serious injury. CAUTION O After wiper blade replacement, return
the wiper arm to its original position.
Otherwise it may be damaged when
the engine hood is opened.
O Make sure the wiper blade contacts
the glass, otherwise the arm may be
damaged from wind pressure.
O Worn windshield wiper blades can
damage the windshield and impair
driver vision.
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 the 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.
AIR CLEANER WINDSHIELD WIPER BLADES
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WARNINGSee your INFINITI retailer and have it
checked 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 indi-
cator sound is heard.
Under some driving or climate conditions, oc-
casional 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 additional information, see
ªPeriodic maintenance schedulesº in the ª9.
Maintenanceº section for maintenance inter-
vals. High performance sports brake pad occasion-
ally makes squeak, squeal or other braking
noise because of its very high friction coeffi-
cient.
These occasional brake noise is normal, but if
it continues, see your INFINITI retailer.
BRAKE BOOSTER Check the brake booster function as follows:
1. With the engine off, press and release the
brake pedal several times. When brake
pedal movement (distance of travel) re-
mains the same from one pedal application
to the next, continue on to the next step.
2. While depressing the brake pedal, start the
engine. The pedal height should drop a
little.
3. With the brake pedal depressed, stop the
engine. Keeping the pedal depressed for
about 30 seconds, the pedal height should
not change.
4. Run the engine for one minute without
depressing the brake pedal, then turn it off.
Depress the brake pedal several times. The
pedal travel distance will decrease gradu-
ally with each depression as the vacuum is
released from the booster. If the brakes do not operate properly, see your
INFINITI retailer.
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9 Maintenance General maintenance ................................................ 9-2
Explanation of maintenance items ....................... 9-3
Periodic maintenance schedules .............................. 9-5 Schedule 1 ........................................................... 9-5
Schedule 2 ........................................................... 9-5
Explanation of maintenance items ..................... 9-10
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Your new INFINITI has been designed to have
minimum maintenance requirements with
longer service intervals to save you both time
and money. However, some day-to-day and
regular maintenance is essential to maintain
your INFINITI's good mechanical condition, as
well as its emission and engine performance.
It is the owner's responsibility to make sure
that the specified maintenance, as well as
general maintenance, is performed.
As the vehicle owner, you are the only one
who can ensure that your vehicle receives the
proper maintenance care. You are a vital link
in the maintenance chain.
General maintenance:
General maintenance includes those items
which should be checked during normal
day-to-day operation of the vehicle. They are
essential if your vehicle is to continue to
operate properly. It is your responsibility to
perform these procedures regularly as
prescribed.
These checks or inspections can be done by
yourself, a qualified technician or, if you prefer,
your INFINITI retailer.
Periodic maintenance:
The maintenance items listed in this part are required to be serviced at regular intervals.
However, under severe driving conditions, ad-
ditional or more frequent maintenance will be
required.
Where to go for service:
If maintenance service is required or your
vehicle appears to malfunction, have the sys-
tems checked and serviced by an authorized
INFINITI retailer.
INFINITI technicians are well-trained special-
ists and are kept up to date with the latest
service information through technical bulletins,
service tips, and in-dealership information sys-
tems. They are completely qualified to work on
INFINITI vehicles before work begins.
You can be confident that your INFINITI
retailer's service department performs the
best job to meet the maintenance
requirements on your vehicle Ð in a reliable
and economic way. During the normal day-to-day operation of the
vehicle, general maintenance should be per-
formed regularly as prescribed in this section.
If you detect any unusual sounds, vibrations or
smell, be sure to check for the cause or have
your INFINITI retailer do it promptly. In addi-
tion, you should notify your INFINITI retailer if
you think that repairs are required.
When performing any checks or maintenance
work, see ªMaintenance precautionsº in the ª8.
Do-it-yourselfº section.GENERAL MAINTENANCE
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EXPLANATION OF MAINTENANCE
ITEMS Additional information on the following
items with ª*º is found in the ª8. Do-it-
yourselfº section.
Outside the vehicle The maintenance items listed here should be
performed from time to time, unless otherwise
specified.
Tires*: Check the pressure with a gauge at
least once a month and always prior to long
distance trips. If necessary, adjust the pres-
sure in all tires, including the spare, to the
specified pressure. Check carefully for dam-
age, cuts or excessive wear.
Wheel nuts*: When checking the tires, make
sure no nuts are missing, and check for any
loose nuts. Tighten if necessary.
Tire rotation*: Tires should be rotated every
7,500 miles (12,000 km) (Sedan).
Tires cannot be rotated (Coupe).
Wheel alignment and balance: If the vehicle
pulls to either side while driving on a straight
and level road, or if you detect uneven or
abnormal tire wear, there may be a need for
wheel alignment. If the steering wheel or seat vibrates at normal
highway speeds, wheel balancing may be
needed.
For additional information regarding tires, refer
to ªImportant Tire Safety Informationº (US) or
ªTire Safety Informationº (Canada) in the
INFINITI Warranty Information booklet.
Windshield: Clean the windshield on a regu-
lar basis. Check the windshield at least every
six months for cracks or other damage. Have a
damaged windshield repaired by a qualified
repair facility.
Windshield wiper blades*: Check for cracks
or wear if they do not wipe properly.
Doors and engine hood: Check that all doors
and the engine hood, operate properly. Also
ensure that all latches lock securely. Lubricate
hinges and latches if necessary. Make sure
that the secondary latch keeps the hood from
opening when the primary latch is released.
When driving in areas using road salt or other
corrosive materials, check lubrication fre-
quently.
Inside the vehicle The maintenance items listed here should be
checked on a regular basis, such as when performing periodic maintenance, cleaning the
vehicle, etc.
Lights*: Clean the headlights on a regular
basis. Make sure that the headlights, stop
lights, tail lights, turn signal lights, and other
lights are all operating properly and installed
securely. Also check headlight aim.
Warning lights and chimes: Make sure that
all warning lights and chimes are operating
properly.
Windshield wiper and washer*: Check that
the wipers and washer operate properly and
that the wipers do not streak.
Windshield defroster: Check that the air
comes out of the defroster outlets properly and
in sufficient quantity when operating the heater
or air conditioner.
Steering wheel: Check for changes in the
steering conditions, such as excessive free
play, hard steering or strange noises.
Seats: Check seat position controls such as
seat adjusters, seatback recliner, etc. to en-
sure they operate smoothly and that all latches
lock securely in every position. Check that the
head restraints move up and down smoothly
and that the locks (if so equipped) hold se-
curely in all latched positions. Maintenance
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