engine INFINITI G-COUPE 2011 Manual Online

Jacking up the vehicle and removing
the damaged tire
WARNING
●Never get under the vehicle while it is sup-
ported only by the jack. If it is necessary to
work under the vehicle, support it with
safety stands.
● Use only the jack provided with your vehicle
to lift the vehicle. Do not use the jack pro-
vided with your vehicle on other vehicles.
The jack is designed for lifting only your ve-
hicle during a tire change.
● Use the correct jack-up points. Never use any
other part of the vehicle for jack support.
● Never jack up the vehicle more than
necessary.
● Never use blocks on or under the jack.
● Do not start or run the engine while vehicle is
on the jack, as it may cause the vehicle to
move. This is especially true for vehicles
with limited slip differentials.
● Do not allow passengers to stay in the ve-
hicle while it is on the jack.
Carefully read the caution label attached to the
jack body and the following instructions.
1. Place the jack directly under the jack-up point as illustrated so the top of the jack
contacts the vehicle at the jack-up point.
Align the jack head between the two
notches in the front or the rear as shown.
Also fit the groove of the jack head be-
tween the notches as shown.
The jack should be used on level firm ground.
Jack-up point
CE1089-A
In case of emergency6-5

5. Securely store the flat tire and jackingequipment in the vehicle.
6. Place the spare tire cover and the trunk floor carpeting over the damaged tire.
7. Close the trunk.
WARNING
● Always make sure that the spare tire and
jacking equipment are properly secured af-
ter use. Such items can become dangerous
projectiles in an accident or sudden stop.
● The T-type spare tire and small size spare
tire are designed for emergency use. See
specific instructions under the heading
“WHEELS AND TIRES” in the “8. Maintenance
and do-it-yourself” section.
If needed, Roadside Assistance is available.
Please see your Warranty Information Booklet
or Roadside Assistance I.D. Card for the toll-free
number to call (U.S.) or Warranty Information
Booklet (Canada). To start your engine with a booster battery, the
instructions and precautions below must be
followed.
WARNING
●
If done incorrectly, jump starting can lead to
a battery explosion, resulting in severe in-
jury or death. It could also damage your
vehicle.
● Explosive hydrogen gas is always present in
the vicinity of the battery. Keep all sparks
and flames away from the battery.
● Do not allow battery fluid to come into con-
tact with eyes, skin, clothing or painted sur-
faces. Battery fluid is a corrosive sulphuric
acid solution which can cause severe burns.
If the fluid should come into contact with
anything, immediately flush the contacted
area with water.
● Keep the battery out of the reach of children.
● The booster battery must be rated at 12
volts. Use of an improperly rated battery can
damage your vehicle. ●
Whenever working on or near a battery, al-
ways wear suitable eye protectors (for ex-
ample, goggles or industrial safety spec-
tacles) and remove rings, metal bands, or
any other jewelry. Do not lean over the bat-
tery when jump starting.
● Do not attempt to jump start a frozen battery.
It could explode and cause serious injury.
● Your vehicle has an automatic engine cool-
ing fan. It could come on at any time. Keep
hands and other objects away from it.
If needed, Roadside Assistance is available.
Please see your Warranty Information Booklet
or Roadside Assistance I.D. Card for the toll-free
number to call (U.S.) or Warranty Information
Booklet (Canada).
JUMP STARTING
6-8In case of emergency

WARNING
Always follow the instructions below. Failure to
do so could result in damage to the charging
system and cause personal injury.
1. If the booster battery is in another vehicle
A, position the two vehicles (AandB)
to bring their batteries into close proxim-
ity to each other.
Do not allow the two vehicles to touch.
2. Apply parking brake. Move the selector lever to the P (Park) position (Automatic
transmission models). Move the shift le-
ver to the N (Neutral) position (Manual
transmission models). Switch off all un-
necessary electrical systems (light,
heater, air conditioner, etc.).
3. Remove vent caps on the battery (if so equipped). Cover the battery with a firmly
wrung out moist cloth
Cto reduce explo-
sion hazard. 4. Connect jumper cables in the sequence as
illustrated (
1→2→3→4).
For models with a steering wheel lock
mechanism:
If the battery is disconnected or discharged,
the steering wheel will lock and cannot be
turned. Supply power using jumper cables
before pushing the ignition switch and dis-
engaging the steering lock.
CAUTION
●Always connect positive (+) to positive (+)
and negative () to body ground (as illus-
trated) — not to the battery.
● Make sure the jumper cables do not touch
moving parts in the engine compartment and
that clamps do not contact any other metal.
5. Start the engine of the booster vehicleA
and let it run for a few minutes.
6. Keep the engine speed of the booster vehicle
Aat about 2,000 rpm, and start
the engine of the vehicle being jump
started
B.
SCE0653
In case of emergency6-9

CAUTION
Do not keep the starter motor engaged for more
than 10 seconds. If the engine does not start
right away, push the ignition switch to the OFF
position and wait 10 seconds before trying
again.
7. After starting your engine, carefully dis-connect the negative cable and then the
positive cable (
4→3→2→1).
8. 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.
9. Put the battery cover on.
Do not attempt to start the engine by pushing.
CAUTION
● Automatic transmission models cannot be
push-started or tow-started. Attempting 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.
If needed, Roadside Assistance is available.
Please see your Warranty Information Booklet
or Roadside Assistance I.D. Card for the toll-free
number to call (U.S.) or Warranty & Roadside
Assistance Information Booklet (Canada).
CAUTION
● Do not continue to drive if your vehicle over-
heats. 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, possi-
bly 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 and move the selector
lever to the P (Park) position (Automatic
transmission models). Move the shift lever
to the N (Neutral) position (Manual trans-
mission models).
Do not stop the engine.2. Turn off the climate control. Open all the windows, move the heater or air condi-
tioner temperature control to maximum
hot and fan control to high speed.
PUSH STARTING IF YOUR VEHICLE OVERHEATS
6-10In case of emergency

3. If engine overheating is caused by climb-ing 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.
4. Get out of the vehicle. Look and listen for steam or coolant escaping from the radia-
tor 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.
5. Open the engine hood.
WARNING
If steam or water is coming from the engine,
stand clear to prevent getting burned.
6. Visually check drive belts for damage or looseness. Also check if the cooling fan is
running. The radiator hoses and radiator
should not leak water. If coolant is leak-
ing 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.
7. After the engine cools down, check thecoolant level in the reservoir tank with the
engine running. Add coolant to the reser-
voir tank if necessary. Have your vehicle
repaired at the nearest INFINITI retailer.
If needed, Roadside Assistance is available.
Please see your Warranty Information Booklet
or Roadside Assistance I.D. Card for the toll-free
number to call (U.S.) or Warranty & Roadside
Assistance Information Booklet (Canada). When towing your vehicle, all State (Provincial
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 appli-
cable laws and procedures for towing. To assure
proper towing and to prevent accidental dam-
age to your vehicle, INFINITI recommends that
you have a service operator tow your vehicle. It
is advisable to have the service operator care-
fully read the following precautions.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 transmis-
sion, axles, steering system and powertrain
are in working condition. If any unit is dam-
aged, dollies must be used.
● Always attach safety chains before towing.
TOWING YOUR VEHICLE
In case of emergency6-11

8 Maintenance and do-it-yourself
Maintenance requirement.......................... 8-2
Scheduled maintenance ........................ 8-2
General maintenance ........................... 8-2
Where to go for service ......................... 8-2
General maintenance .............................. 8-2
Explanation of maintenance items ............... 8-2
Maintenance precautions .......................... 8-5
Engine compartment check locations ................ 8-7
VQ25HR/VQ37VHR engine ....................... 8-7
Engine cooling system ............................. 8-8
Checking engine coolant level ................... 8-9
Changing engine coolant ........................ 8-9
Engine oil ........................................ 8-9
Checking engine oil level ......................8-10
Changing engine oil and filter ..................8-10
Automatic transmission fluid ......................8-12
Power steering fluid .............................. 8-12
Brake and clutch fluid ............................ 8-13
Brake fluid ................................... 8-13
Clutch fluid (if so equipped) ....................8-13
Window washer fluid ............................. 8-14Battery
.......................................... 8-14
Coupe ........................................ 8-14
Sedan and coupe ............................. 8-15
Jump starting ................................. 8-16
Variable voltage control system ...................8-16
Drive belts ....................................... 8-17
Spark plugs ..................................... 8-18
Replacing spark plugs ......................... 8-18
Air cleaner ....................................... 8-18
Windshield wiper blades .......................... 8-19
Cleaning ...................................... 8-19
Replacing ..................................... 8-20
Brakes .......................................... 8-21
Self-adjusting brakes .......................... 8-21
Brake pad wear warning ....................... 8-21
Fuses ........................................... 8-21
Engine compartment ........................... 8-21
Passenger compartment ....................... 8-23
Intelligent
Key battery replacement ................8-24

Your new INFINITI has been designed to have
minimum maintenance requirements with long
service intervals to save you both time and
money. However, some day-to-day and regular
maintenance is essential to maintain your
INFINITI’s fine mechanical condition, as well as
its emission and engine performance.
It is the owner’s responsibility to make sure that
the scheduled 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.
SCHEDULED MAINTENANCE
For your convenience, both required and op-
tional scheduled maintenance items are de-
scribed and listed in your “INFINITI Service and
Maintenance Guide”. You must refer to that
guide to ensure that necessary maintenance is
performed on your INFINITI at regular intervals.
GENERAL MAINTENANCE
General maintenance includes those items
which should be checked during normal day-to-
day operation. They are essential for propervehicle operation. It is your responsibility to
perform these procedures regularly as pre-
scribed.
Performing general maintenance checks re-
quires minimal mechanical skill and only a few
general automotive tools.
These checks or inspections can be done by
yourself, a qualified technician or, if you prefer,
an INFINITI retailer.
WHERE TO GO FOR SERVICE
If maintenance service is required or your ve-
hicle appears to malfunction, have the systems
checked and serviced by an INFINITI retailer.
INFINITI technicians are well-trained specialists
and are kept up to date with the latest service
information through technical bulletins, service
tips, and in-retailership information systems.
They are completely qualified to work on
INFINITI vehicles
beforework begins.
You can be confident that an INFINITI retailer’s
service department performs the best job to
meet the maintenance requirements on your
vehicle — in a reliable and economical 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 an
INFINITI retailer do it promptly. In addition, you
should notify an INFINITI retailer if you think
that repairs are required.
When performing any checks or maintenance
work, see “MAINTENANCE PRECAUTIONS” later
in this section.EXPLANATION OF MAINTENANCE
ITEMS
Additional information on the following items
with “*” is found later in this section.
Outside the vehicle
The maintenance items listed here should be
performed from time to time, unless otherwise
specified.
Doors and engine hood:
Check that all doors
and the engine hood, operate properly. Also
ensure that all latches lock securely. Lubricate
hinges, latches, latch pins, rollers and links if
necessary. Make sure that the secondary latch
keeps the hood from opening when the primary
latch is released.
MAINTENANCE REQUIREMENT GENERAL MAINTENANCE
8-2Maintenance and do-it-yourself

restraints move up and down smoothly and that
the locks (if so equipped) hold securely in all
latched positions.
Steering wheel:Check for changes in the steer-
ing conditions, such as excessive free play,
hard steering or strange noises.
Warning lights and chimes: Make sure that all
warning lights and chimes are operating prop-
erly.
Windshield defroster: Check that the air comes
out of the defroster outlets properly and in
sufficient quantity when operating the heater or
air conditioner.
Windshield wiper and washer*: Check that the
wipers and washer operate properly and that
the wipers do not streak.
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).
Battery*: Check the fluid level in each cell. It
should be between the MAX and MIN lines.
Vehicles operated in high temperatures or un-
der severe condition require frequent checks of
the battery fluid level. Brake fluid level*:
Make sure that the brake
fluid level is between the MAX and MIN lines on
the reservoir.
Engine coolant level*: Check the coolant level
when the engine is cold.
Engine drive belts*: Make sure that no belt is
frayed, worn, cracked or oily.
Engine oil level*: Check the level after parking
the vehicle on a level spot and turning off the
engine. Wait more than 15 minutes for the oil to
drain back into the oil pan.
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 have the exhaust
system inspected by an INFINITI retailer. (See
“PRECAUTIONS WHEN STARTING AND DRIVING”
in the “5. Starting and driving” section for
exhaust gas (Carbon monoxide).)
Fluid leaks: Check under the vehicle for fuel, oil,
water or other fluid leaks after the vehicle has
been parked for a while. Water dripping from
the air conditioner after use is normal. If you
should notice any leaks or if gasoline fumes are
evident, check for the cause and have it cor-
rected immediately. Power steering fluid level* and lines:
Check the
level when the fluid is cold, with the engine off.
Check the lines for proper attachment, leaks,
cracks, etc.
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, rot or loose
connections.
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
“CLEANING EXTERIOR” in the “7. Appearance
and care” section.
Windshield washer fluid*: Check that there is
adequate fluid in the reservoir.
8-4Maintenance and do-it-yourself

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 gen-
eral precautions which should be closely ob-
served.
WARNING
●Park the vehicle on a level surface, apply the
parking brake securely and block the wheels
to prevent the vehicle from moving. For
manual transmission models, move the shift
lever to N (Neutral). For automatic transmis-
sion models, move the selector lever to P
(Park).
● Be sure the ignition switch is in the OFF or
LOCK position when performing any parts
replacement or repairs.
● Never connect or disconnect the battery or
any transistorized component while the ig-
nition switch is in the ON position.
● Never leave the engine or automatic trans-
mission related component harnesses dis-
connected while the ignition switch is in the
ON position. ●
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.
● It is advisable to secure or remove any loose
clothing and remove any jewelry, such as
rings, watches, etc. before working on your
vehicle.
● Always wear eye protection whenever you
work on your vehicle.
● 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.
● Never get under the vehicle while it is sup-
ported only by a jack. If it is necessary to
work under the vehicle, support it with
safety stands.
● Keep smoking materials, flame and sparks
away from fuel tank and the battery. ●
Your vehicle is equipped with an automatic
engine cooling fan. It may come on at any
time without warning, even if the ignition
key is in the OFF position and the engine is
not running. To avoid injury, always discon-
nect the negative battery cable before work-
ing near the fan.
● The fuel filter or fuel lines should be serviced
by an INFINITI retailer because the fuel lines
are under high pressure even when the en-
gine is off.
CAUTION
● Do not work under the hood while the engine
is hot. Turn the engine off and wait until it
cools down.
● Avoid direct contact with used engine oil and
coolant. Improperly disposed engine oil,
coolant, and/or other vehicle fluids can dam-
age the environment. Always conform to lo-
cal regulations for disposal of vehicle fluid.
MAINTENANCE PRECAUTIONS
Maintenance and do-it-yourself8-5

VQ25HR/VQ37VHR ENGINE
1. Fuse/fusible link holder
2. Battery
3. Engine oil filler cap
4. Brake fluid reservoir5. 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 (for VQ37VHR engine
model)
13. Engine oil dipstick (for VQ25HR engine model)
SDI2709
ENGINE COMPARTMENT CHECK
LOCATIONS
Maintenance and do-it-yourself8-7