2011 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/Coolant (blue) and
50% water to provide year-round anti-freeze
and coolant protection. The antifreeze solution
contains rust and corrosion inhibitors. Addi-
tional engine cooling system additives are not
necessary.
WARNING
●Never remove the radiator or coolant reser-
voir 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” 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 Genuine NISSAN Long Life
Antifreeze/Coolant (blue) or equivalent.
Genuine NISSAN Long Life Antifreeze/
Coolant (blue) is pre-diluted to provide anti-
freeze protection to 34°F (37°C). If addi-
tional freeze protection is needed due to
weather where you operate your vehicle, add
Genuine NISSAN Long Life Antifreeze/
Coolant (blue) concentrate following the di-
rections on the container. If an equivalent
coolant other than Genuine NISSAN Long
Life Antifreeze/Coolant (blue) is used, follow
the coolant manufacturer’s instructions to
maintain minimum antifreeze protection to
34°F (37°C). The use of other types of
coolant solutions other than Genuine
NISSAN Long Life Antifreeze/ Coolant (blue)
or equivalent may damage the engine cool-
ing 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 Nissan Service and Maintenance
Guide for more details.
ENGINE COOLING SYSTEM
8-8Maintenance and do-it-yourself

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
1level. 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 fre-
quently, have it checked by an INFINITI retailer.
CHANGING ENGINE COOLANT
Major cooling system repairs should be per-
formed by an INFINITI retailer. 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.
SDI2043
VQ25HR engine
SDI2505
VQ37VHR engine
SDI2045
ENGINE OIL
Maintenance and do-it-yourself8-9

●If a methanol blend is used, it should contain
no more than 5% methanol (methyl alcohol,
wood alcohol). It should also contain a suit-
able amount of appropriate cosolvents and
corrosion inhibitors. If not properly formu-
lated with appropriate cosolvents and corro-
sion inhibitors, such methanol blends may
cause fuel system damage and/or vehicle
performance problems. At this time, suffi-
cient 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 experi-
enced after using oxygenate-blend fuels, imme-
diately 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. govern-
ment regulations require fuel ethanol dispens-
ing pumps to be identified by a small, square, orange and black label with the common abbre-
viation or the appropriate percentage for that
region.
Aftermarket fuel additives
INFINITI does not recommend the use of any
aftermarket fuel additives (Example: fuel injec-
tor cleaner, octane booster, intake valve de-
posit removers, etc.) which are sold commer-
cially. 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 per-
sistent, 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 mis-
use of the vehicle, for which INFINITI is not re-
sponsible.
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 fa-
cility.
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 specifi-
cally designed for E-85 fuel can damage fuel
system components and is not covered by
the INFINITI new vehicle limited warranty.
● E-85 is a mixture of approximately 85% fuel
ethanol and 15% unleaded gasoline.
● U.S. government regulations require 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.
Technical and consumer information9-5

CD/CF/USB memory care and cleaning . . . .4-81
Center multi-function control panel.......4-2
Child restraints ................. .1-21
Booster seats ................ .1-36
Installation using LATCH ...........1-26
Installation using the seat belts ......1-30
LATCH system ................ .1-23
Precautions on child restraints .......1-21
Top tether strap .............. .1-25
Child safety ................... .1-15
Child safety rear door lock ............3-6
Chimes Audible reminders ............. .2-17
Seat belt warning light and chime .....2-14
Cigarette lighter and ashtrays .........2-41
Circuit breaker, Fusible link ...........8-22
Cleaning exterior and interior ........7-2, 7-4
Climate control, Automatic climate control . .4-28
Clock ...................... .2-39
Clutch fluid ................... .8-13
Coat hooks ................... .2-47
Cockpit ...................... .2-2
Cold weather driving .............. .5-56
Compact Disc (CD) player
(See audio system) .............. .4-57
Compact spare tire .............. .8-42
Compass ..................... .2-7
Console box .................. .2-44
Controller, Center multi-function control
panel ....................... .4-4
Controls Control panel button .............4-2
INFINITI Controller .............. .4-4
Coolant Capacities and recommended fuel/
lubricants .................. .9-2Changing engine coolant
...........8-9
Checking engine coolant level ........8-9
Corrosion protection .............. .7-6
Cruise control .................. .5-19
Fixed speed cruise control
(on
ICC system) .............. .5-40
Intelligent cruise control (ICC) system . . .5-22
Cup holders .................. .2-42
Current fuel consumption ............2-24
D
Daytime running light system .........2-34
Defroster switch, Rear window and
outside mirror defroster switch .........2-31
Dimensions ................... .9-11
Distance to empty ............... .2-25
Door/trunk open warning ............2-21
Dot matrix liquid crystal display ........2-18
Drive belts ................... .8-17
Drive positioner ................ .3-29
Driving All-wheel drive (AWD) ............5-44
Cold weather driving .............5-56
Driving with automatic transmission . . . .5-12
Driving with manual transmission .....5-16
Precautions when starting and driving . . .5-2
DS (Drive Sport) mode ..............5-14
DVD player operation ............. .4-59
E
Economy, Fuel ................. .5-44
Elapsed time .................. .2-24
Elapsed time and trip odometer ........2-24Emission control information label . .
.....9-14
Emission control system warranty .......9-24
Engine Before starting the engine ..........5-11
Break-in schedule ............. .5-43
Capacities and recommended fuel/
lubricants .................. .9-2
Changing engine coolant ...........8-9
Changing engine oil and filter .......8-10
Checking engine coolant level ........8-9
Checking engine oil level ..........8-10
Coolant temperature gauge .........2-6
Emergency engine shut off .........5-10
Engine compartment check locations . . . .8-7
Engine cooling system ............8-8
Engine
oil.................. .8-9
Engine oil and oil filter recommendation . .9-6
Engine oil replacement indicator ......2-22
Engine oil viscosity ............. .9-6
Engine serial number ............9-13
Engine specifications .............9-8
Engine start operation indicator
(Automatic Transmission models) .....2-20
Engine start operation indicator (Manual
Transmission models) ............2-21
If your vehicle overheats ..........6-10
Starting the engine ............. .5-11
Entry/exit function ............... .3-29
Event Data Recorders (EDR) ...........9-26
Exhaust gas (carbon monoxide) .........5-2
F
F.M.V.S.S./C.M.V.S.S. certification label . . . .9-13
10-2

Oil filter replacement indicator.......2-22
Operation, Indicators for operation ......2-20
Outside air temperature .............2-25
Outside mirrors ................. .3-27
Overheat, If your vehicle overheats ......6-10
Owner’s Manual/Service Manual order
information ................... .9-26
P
Panic alarm ................... .3-15
Parking Brake break-in ............... .5-50
Parking brake operation ...........5-18
Parking brake release warning .......2-21
Parking on hills .............. .5-46
Personal lights ................. .2-53
Phone Bluetooth hands-free phone system
(models with navigation system) ......4-84
Bluetooth hands-free phone system
(models without navigation system) . . . .4-95
Car phone or CB radio ...........4-84
Power Front seat adjustment .............1-3
Power door lock ............... .3-4
Power outlet ................ .2-40
Power steering fluid .............8-12
Power steering system ...........5-49
Power windows .............. .2-48
Pre-crash seat belts .............. .1-16
Precautions Audio operation .............. .4-38
Braking precautions .............5-49
Child restraints ............... .1-21Cruise control
................ .5-19
Maintenance ................. .8-5
Seat belt usage ............... .1-13
Supplemental restraint system .......1-40
When starting and driving ..........5-2
Preview function ................ .5-50
Preview

function (for Intelligent cruise
control system) ................. .5-43
Preview Function warning light .........2-14
Push starting .................. .6-10
Push warning (Automatic Transmission
models) ..................... .2-20
Push-button ignition switch .........5-8, 5-9
R
Radio ...................... .4-38
Car phone or CB radio ...........4-84
FM-AM-SAT radio with Compact Disc
(CD) player ................. .4-54
Rain-sensing auto wiper system ........2-30
Rapid air pressure loss ..............5-6
Readiness for inspection/maintenance
(I/M) test (US only) .............. .9-25
Rear door lock, Child safety rear door lock. . .3-6
Rear seats .................... .1-7
Rear window and outside mirror defroster
switch ...................... .2-31
Rearview monitor ................ .4-21
Recorders, Event data ............. .9-26
Registering your vehicle in another country . .9-12
Remote keyless entry system ..........3-14
Reporting safety defects ............9-24
Roadside assistance program ..........6-2
Rollover ...................... .5-5Roof, Moonroof
................. .2-52
S
Safety, Child seat belts .............1-15
Satellite radio operation .............4-55
Seat adjustment Front power seat adjustment .........1-3
Front seats .................. .1-3
Seat belt(s) Child safety ................. .1-15
Infants .................... .1-16
Injured persons ............... .1-16
Larger children ............... .1-16
Pre-crash seat belts .............1-16
Precautions on seat belt usage .......1-13
Pregnant women .............. .1-16
Seat belt cleaning .............. .7-5
Seat

belt extenders .............1-20
Seat belt maintenance ............1-20
Seat belt warning light and chime .....2-14
Seat belts .................. .1-13
Seat belts with pretensioners . . . .....1-52
Shoulder belt height adjustment ......1-19
Small children ................ .1-16
Three-point type .............. .1-17
Seat synchronization function .........3-30
Seat(s) Driver-side memory .............3-29
Heated seats ................ .2-37
Seats ..................... .1-2
Security system, Vehicle security system . . .2-27
Security system (INFINITI Vehicle Immobilizer
System), Engine start ............. .2-28
Selector lever, Shift lock release . . ......5-16
10-5