2012 INFINITI G-COUPE engine overheat

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.6-10) 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.
Maintenance and do-it-yourself8-9
ENGINE COOLING SYSTEM

8-10Maintenance and do-it-yourself
SDI2043
CHECKING ENGINE COOLANT LEVEL
Check the coolant levelin the reservoir
when the engine is cold. If the coolant
level is below MIN
*2, open the reservoir
tank cap and add coolant up to the MAX
*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
*1.
Tighten the cap securely after adding
engine coolant. If the cooling system requires coolant
frequently, 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 reach of children and
pets.
Engine coolant must be disposed of
properly. Check your local regulations.

.If an oxygenate-blend, excepting a
methanol blend, is used, it should
contain no more than 10% oxygenate.
(MTBE may, however, be added up to
15%.)
. If a methanol blend is used, it should
contain no more than 5% methanol
(methyl alcohol, wood alcohol). It
should also contain a suitable amount
of appropriate cosolvents and corro-
sion inhibitors. If not properly formu-
lated with appropriate cosolvents and
corrosion inhibitors, such methanol
blends may cause fuel system damage
and/or vehicle performance problems.
At this time, sufficient data is not
available to ensure that all methanol
blends are suitable for use in INFINITI
vehicles.
If any undesirable driveability problems
such as engine stalling or hard hot starting
are experienced after using oxygenate-
blend fuels, immediately change to a
non-oxygenate fuel or a fuel with a low
blend of MTBE.
Take care not to spill gasoline during
refueling. Gasoline containing oxygenates
can cause paint damage.E-85 fuel
E-85 fuel is a mixture of approximately
85% fuel ethanol and 15% unleaded
gasoline. E-85 can only be used in a
Flexible Fuel Vehicle (FFV). Do not use E-
85 fuel in your vehicle. U.S. government
regulations require fuel ethanol dispensing
pumps to be identified by a small, square,
orange and black label with the common
abbreviation or the appropriate percentage
for that region.
Aftermarket fuel additives
INFINITI does not recommend the use of
any aftermarket fuel additives (Example:
fuel injector cleaner, octane booster, intake
valve deposit removers, etc.) which are
sold commercially. Many of these additives
intended for gum, varnish or deposit
removal may contain active solvent or
similar ingredients that can be harmful to
the fuel system and engine.
Octane rating tips
Using unleaded gasoline with an octane
rating lower than recommended above can
cause persistent, heavy spark knock.
(Spark knock is a metallic rapping noise.)
If severe, this can lead to engine damage.
If you detect a persistent heavy spark knock even when using gasoline of the
stated octane rating, or if you hear steady
spark knock while holding a steady speed
on level roads, have an INFINITI retailer
correct the condition. Failure to correct the
condition is misuse of the vehicle, for
which INFINITI is not responsible.
Incorrect ignition timing will result in
knocking, after-run or overheating. This in
turn may cause excessive fuel consumption
or damage to the engine. If any of the
above symptoms are encountered, have
your vehicle checked at an INFINITI retailer
or other competent service facility.
However, now and then you may notice
light spark knock for a short time while
accelerating or driving up hills. This is no
cause for concern, because you get the
greatest fuel benefit when there is light
spark knock for a short time under heavy
engine load.CAUTION
.
Your vehicle is not designed to run on E-
85 fuel. Using E-85 fuel in a vehicle not
specifically designed for E-85 fuel can
damage fuel system components and is
not covered by the INFINITI new vehicle
Technical and consumer information9-5

Engine start operation indicator (Manual
Transmission models) .................................. 2-23
If your vehicle overheats .............................. 6-10
Starting the engine ...................................... 5-13
Entry/exit function ............................................ 3-31
Event Data Recorders (EDR) ............................... 9-27
Exhaust gas (carbon monoxide) .......................... 5-3
F
F.M.V.S.S./C.M.V.S.S. certification label ............. 9-13
Filter Air cleaner housing filter .............................. 8-21
Changing engine oil and filter ...................... 8-11
Flashers (See hazard warning flasher switch) .... 2-39
Flat tire ............................................................... 6-2
Flat towing ........................................................ 9-23
Floor mat cleaning .............................................. 7-5
Fluid
Automatic transmission fluid (ATF) ............... 8-14
Brake and clutch fluid .................................. 8-15
Brake fluid ................................................... 8-15
Capacities and
recommended fuel/lubricants ........................ 9-2
Engine coolant ............................................... 8-9
Engine oil .................................................... 8-11
Power steering fluid ..................................... 8-14
Window washer fluid ................................... 8-16
FM-AM-SAT radio with Compact Disc
(CD) player ........................................................ 4-57
Fog light switch ................................................ 2-39
Front passenger air bag and status light ........... 1-49 Front power seat adjustment ............................... 1-3
Front seat, Front seat adjustment ........................ 1-3
Front-seat active head restraints ....................... 1-12
Fuel
Capacities and
recommended fuel/lubricants ........................ 9-2
Fuel economy............................................... 5-45
Fuel economy information (display) .............. 4-11
Fuel octane rating .......................................... 9-4
Fuel recommendation ..................................... 9-4
Fuel-filler cap ............................................... 3-23
Fuel-filler door ............................................. 3-23
Gauge ............................................................ 2-9
LOOSE FUEL CAP warning ............................. 3-25
Fuses ................................................................ 8-24
Fusible links ..................................................... 8-24
G
Garage door opener, HomeLink®
Universal Transceiver ........................................ 2-59
Gas cap ............................................................ 3-23
Gauge ................................................................. 2-6 Engine coolant temperature gauge ................. 2-8
Fuel gauge ..................................................... 2-9
Odometer....................................................... 2-7
Speedometer ................................................. 2-7
Tachometer .................................................... 2-8
Trip computer .............................................. 2-26
General maintenance ................................... 8-3, 8-4
Glove box ......................................................... 2-47
Golf bag stowing .............................................. 2-51
H
Hands-free phone system, Bluetooth®
(models with navigation system) ....................... 4-90
Hands-free phone system, Bluetooth®
(models without navigation system) ................ 4-100
Hazard warning flasher switch .......................... 2-39
Head restraints ................................................... 1-9
Headlights
Bulb replacement ......................................... 8-30
Headlight switch .......................................... 2-35
Xenon headlights ......................................... 2-34
Heated seats .................................................... 2-40
Heater, Automatic climate control ..................... 4-31
HomeLink
®Universal Transceiver ...................... 2-59
Hood release .................................................... 3-18
Hook, Coat hooks ............................................. 2-50
Horn ................................................................. 2-40
I
Ignition switch (Push-button) ................................................. 5-9
Manual transmission models ....................... 5-18
Immobilizer system ........................................... 2-30
In-cabin microfilter ............................................ 4-40
Indicator Dot matrix display ....................................... 2-20
Lights .......................................................... 2-18
INFINITI Vehicle Immobilizer System .................. 2-30
INFINITI voice recognition system .................... 4-114
10-3

Mechanical key (Intelligent Key system) .............. 3-3
Memory storage, Automatic drive positioner ..... 3-33
Meter, Trip computer ......................................... 2-26
Meters and gauges ............................................. 2-6Instrument brightness control ...................... 2-38
Mirror Inside mirror ................................................ 3-28
Outside mirrors ............................................ 3-29
Vanity mirror ................................................ 3-31
Monitor, Rearview monitor ................................ 4-23
Moonroof .......................................................... 2-55
N
New vehicle break-in ......................................... 5-45
No key warning ................................................. 2-22
O
Odometer............................................................ 2-7
Off-road recovery ................................................ 5-7
Oil
Capacities and
recommended fuel/lubricants ........................ 9-2
Changing engine oil and filter ...................... 8-11
Checking engine oil level ............................. 8-11
Engine oil .................................................... 8-11
Engine oil viscosity ........................................ 9-7
Oil filter replacement indicator ..................... 2-24
Operation, Indicators for operation ................... 2-22
Outside air temperature .................................... 2-27
Outside mirrors ................................................. 3-29 Overheat, If your vehicle overheats ................... 6-10
Owner’s Manual/Service Manual
order information .............................................. 9-28
P
Panic alarm ...................................................... 3-15
Parking
Brake break-in ............................................. 5-51
Parking brake operation ............................... 5-20
Parking brake release warning ..................... 2-23
Parking on hills ........................................... 5-47
Personal lights .................................................. 2-57
Phone Bluetooth
®hands-free phone system
(models with navigation system) .................. 4-90
Bluetooth
®hands-free phone system
(models without navigation system) ........... 4-100
Car phone or CB radio ................................. 4-89
Power Front seat adjustment .................................... 1-3
Power door lock ............................................. 3-4
Power outlet ................................................ 2-43
Power steering fluid ..................................... 8-14
Power steering system ................................. 5-50
Power windows ............................................ 2-52
Precautions Audio operation ........................................... 4-41
Braking precautions ..................................... 5-51
Child restraints ............................................ 1-23
Cruise control .............................................. 5-21
Maintenance .................................................. 8-6 Seat belt usage ........................................... 1-14
Supplemental restraint system ..................... 1-41
When starting and driving .............................. 5-3
Pre-crash seat belts .......................................... 1-16
Predictive course line settings .......................... 4-29
Preview function ............................................... 5-52
Preview function (for Intelligent cruise
control system) ................................................. 5-44
Preview Function warning light .......................... 2-16
Push starting .................................................... 6-10
Push warning (Automatic
Transmission models) ....................................... 2-22
Push-button ignition switch ....................... 5-9, 5-10
R
Radio ................................................................ 4-41 Car phone or CB radio ................................. 4-89
FM-AM-SAT radio with Compact Disc
(CD) player ................................................... 4-57
Rain-sensing auto wiper system ........................ 2-33
Rapid air pressure loss ....................................... 5-7
Readiness for inspection/maintenance (I/M) test
(US only) .......................................................... 9-27 Rear door lock, Child safety rear door lock ......... 3-6
Rear seats .......................................................... 1-7
Rear window and outside mirror
defroster switch ................................................ 2-34
Rearview monitor .............................................. 4-23
Recorders, Event data ....................................... 9-27
Registering your vehicle in another country ...... 9-11
Remote keyless entry system ............................ 3-14
10-5