2003 INFINITI G35 parking brake

CAUTIONO Never tow automatic transmission
models with the rear wheels on the ground or four wheels on the ground
(forward or backward) as this may
cause serious and expensive damage
to the transmission.
If it is necessary to tow the vehicle
with the front wheels raised, always
use towing dollies under the rear
wheels.
O When towing rear wheel drive models
with the front wheels on the ground
or on towing dollies:
Turn the ignition key to the OFF posi-
tion, and secure the steering wheel in
a straight ahead position with a rope
or similar device. Never secure the
steering wheel by turning the ignition
key to the LOCK position. This may
damage the steering lock mecha-
nism.
O If you have to tow manual transmis-
sion models with the rear wheels on
the ground or four wheels on the
ground (if you do not use towing
dollies): O Always release the parking brake.
O Move the transmission shift lever
to the N (Neutral) position.
O Observe the following restricted tow-
ing speeds and distances for manual
transmission models only:
O Speed: Below 60 MPH (95 km/h)
O Distance: Less than 500 miles (800
km)
If the speed or distance must necessarily be
greater, remove the propeller shaft before tow-
ing to prevent damage to the transmission.SCE0387
6-12 In case of emergency
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8 Do-it-yourself Maintenance precautions .......................................... 8-2
Engine compartment check locations ....................... 8-4
Engine cooling system .............................................. 8-5
Checking engine coolant level ............................. 8-5
Changing engine coolant ..................................... 8-6
Engine oil .................................................................. 8-7
Checking engine oil level ..................................... 8-7
Changing engine oil and filter .............................. 8-8
Automatic transmission fluid ................................... 8-10
Power steering fluid ................................................ 8-10
Brake and clutch fluid ............................................. 8-11
Brake fluid .......................................................... 8-11
Clutch fluid.......................................................... 8-11
Window washer fluid ............................................... 8-12
Battery ..................................................................... 8-13
Jump starting ...................................................... 8-14
Drive belts ............................................................... 8-14
Spark plugs ............................................................. 8-15
Replacing spark plugs ........................................ 8-15
Air cleaner ............................................................... 8-16
Windshield wiper blades ......................................... 8-16
Cleaning ............................................................. 8-16
Replacing............................................................ 8-17 Parking brake and brake pedal ............................... 8-18
Checking parking brake ..................................... 8-18
Checking brake pedal ........................................ 8-18
Brake booster ..................................................... 8-19
Fuses....................................................................... 8-20
Engine compartment .......................................... 8-20
Passenger compartment .................................... 8-21
Keyfob battery replacement .................................... 8-21
Lights ....................................................................... 8-23
Headlights........................................................... 8-25
Exterior and interior lights .................................. 8-26
Wheels and tires ..................................................... 8-30
Tire pressure ...................................................... 8-30
Types of tires...................................................... 8-30
Tire chains .......................................................... 8-31
Changing wheels and tires ................................. 8-32
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When performing any inspection or mainte-
nance work on your vehicle, always take care
to prevent serious accidental injury to yourself
or damage to the vehicle. The following are
general precautions which should be closely
observed.
WARNINGO Park the vehicle on a level surface,
apply the parking brake securely and
block the wheels to prevent the ve-
hicle from moving. For a manual
transmission, move the shift lever to
N (Neutral) position. For an automatic
transmission, move the selector lever
to P (Park) position.
O Be sure the ignition key is OFF or
LOCK when performing any parts re-
placement or repairs.
O If you must work with the engine
running, keep your hands, clothing,
hair and tools away from moving
fans, belts and any other moving
parts.
O It is advised to secure or remove any loose clothing and any jewelry, such
as rings, watches, etc. before work-
ing on your vehicle.
O Always wear eye protection when-
ever you work on your vehicle.
O If you must run the engine in an
enclosed space such as a garage, be
sure there is proper ventilation for
exhaust gases to escape.
O Never get under the vehicle while it is
supported only by a jack. If it is nec-
essary to work under the vehicle,
support it with safety stands.
O Keep smoking materials, flame and
sparks away from fuel and the bat-
tery.
O On gasoline engine models with the
Multiport Fuel Injection (MFI) System,
the fuel filter or fuel lines should be
serviced by an INFINITI retailer be-
cause the fuel lines are under high
pressure even when the engine is off. CAUTION O Do not work under the hood while the
engine is hot. Turn off the engine and
wait until it cools down.
O Never connect or disconnect either
the battery or any transistorized com-
ponent connector while the ignition
key is on.
O Never leave any engine or automatic
transmission related component har-
ness connector disconnected while
the ignition key is on.
O Avoid direct contact with used engine
oil and coolant. Improperly disposed
engine oil, engine coolant and/or
other vehicle fluids can hurt the envi-
ronment. Always conform to local
regulations for disposal of vehicle
fluid.
This ª8. Do-it-yourselfº section gives instruc-
tions regarding only those items which are
relatively easy for an owner to perform.
A genuine INFINITI Service Manual is alsoMAINTENANCE PRECAUTIONS
8-2 Do-it-yourself
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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
Do-it-yourself
8-7
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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
8-8 Do-it-yourself
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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
Do-it-yourself
8-15
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CHECKING PARKING BRAKE
Pedal type From the released position, depress the park-
ing brake pedal slowly and firmly, and check
the distance between the initial and final posi-
tion of the pedal. If it is out of the range shown
above, see your INFINITI retailer.
Lever type From the released position, pull the parking
brake lever up slowly and firmly. If the number
of clicks is out of the range listed above, see
your INFINITI retailer.
CHECKING BRAKE PEDAL With the engine running, check the distance
between the upper surface of the pedal and
the metal floor. If it is out of the range shown
above, see your INFINITI retailer.
Self-adjusting brakes Your vehicle is equipped with self-adjusting
brakes.
The disc-type brakes self-adjust every time the
brake pedal is applied.SDI1391 SDI1447 DI1020MK
PARKING BRAKE AND BRAKE
PEDAL
8-18 Do-it-yourself
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Seat belts: Check that all parts of the seat belt
system (For example, buckles, anchors, ad-
justers and retractors) operate properly and
smoothly, and are installed securely. Check
the belt webbing for cuts, fraying, wear or
damage.
Accelerator pedal: Check the pedal for
smooth operation and make sure the pedal
does not catch or require uneven effort. Keep
the floor mat away from the pedal.
Clutch pedal*: Make sure the pedal operates
smoothly and check that it has the proper free
play.
Brakes: Check that the brakes do not pull the
vehicle to one side when applied.
Brake pedal*: Check the pedal for smooth
operation and make sure it has the proper
distance under it when depressed fully. Check
the brake booster function. Be sure to keep the
floor mat away from the pedal.
Parking brake*: Check that the lever has the
proper travel and confirm that your vehicle is
held securely on a fairly steep hill with only the
parking brake applied.
Automatic transmission P (Park) mecha-
nism: On a fairly steep hill check that your
vehicle is held securely with the selector lever in the P (Park) position without applying any
brakes.
Under the hood and vehicle The maintenance items listed here should be
checked periodically (For example, each time
you check the engine oil or refuel).
Windshield washer fluid*: Check that there
is adequate fluid in the tank.
Engine coolant level*: Check the coolant
level when the engine is cold.
Radiator and hoses: Check the front of the
radiator and clean off any dirt, insects, leaves,
etc., that may have accumulated. Make sure
the hoses have no cracks, deformation, dete-
rioration or loose connections.
Brake and clutch fluid level*: Make sure that
the brake and clutch fluid level is between the
MAX and MIN lines on the reservoir.
Battery*: Check the fluid level in each cell.
It should be between the MAX and MIN lines.
Vehicles operated in high temperatures or
under severe conditions require frequent
checks of the battery fluid level.
Engine drive belts*: Make sure that no belt is
frayed, worn, cracked or oily.
Engine oil level*: Check the level after park- ing the vehicle on a level spot and turning off
the engine. (Wait at least 10 minutes for the oil
to drain back into the oil pan.)
Power steering fluid level* and lines: Check
the level when the fluid is cold and the engine
is turned off. Check the lines for proper attach-
ment, leaks, cracks, etc.
Exhaust system: Make sure there are no
loose supports, cracks or holes. If the sound of
the exhaust seems unusual or there is a smell
of exhaust fumes, immediately locate the
trouble and correct it. See ªPrecautions when
starting and drivingº in the ª5. Starting and
drivingº section for exhaust gas (Carbon mon-
oxide).
Underbody: The underbody is frequently ex-
posed to corrosive substances such as those
used on icy roads or to control dust. It is very
important to remove these substances, other-
wise rust will form on the floor pan, frame, fuel
lines and around the exhaust system. At the
end of winter, the underbody should be thor-
oughly flushed with plain water, being careful
to clean those areas where mud and dirt may
accumulate. For additional information, see
ªCleaning exteriorº in the ª7. Appearance and
careº section.
Fluid leaks: Check under the vehicle for fuel,
oil, water or other fluid leaks after the vehicle
9-4 Maintenance
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