2013 INFINITI M-HEV cooling

8-6Maintenance and do-it-yourself
ing the service plug can cause severe
burns or electric shock that may result in
serious injury or death.
. The hybrid system uses high voltage up
to 408V. The system can be hot while
and after starting. Be careful of both the
high voltage and the high temperature.
Obey the caution labels attached to the
vehicle.
. Park the vehicle on a level surface, apply
the parking brake securely and block the
wheels to prevent the vehicle from
moving. Move the shift selector to P
(Park).
. Be sure the ignition switch is in the OFF
or LOCK position when performing any
parts replacement or repairs.
. The engine can start at any time without
warning when the Hybrid System is in
the READY to drive mode. If you must
work with the Hybrid System in the
READY to drive mode, keep your hands,
clothing, hair and tools away from fans,
belts and any other parts that can move.
. 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.
. Your vehicle is equipped with an auto-
matic 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 disconnect the negative
battery cable before working near the
fan.
. 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
supported 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 the fuel tank and
battery.
CAUTION
.Do not work under the hood while the
engine is hot. Turn the hybrid system 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 damage the environment. Always
conform to local regulations for disposal
of vehicle fluid.
. Never leave the engine or the transmis-
sion related component harness connec-
tor disconnected while the ignition
switch is in the ON position.
. Never connect or disconnect the battery
or any transistorized component while
the ignition switch is in the ON position.
This “8. Maintenance and do-it-yourself”
section gives instructions regarding only
those items which are relatively easy for an
owner to perform.
A genuine INFINITI Service Manual is also
available. (See “Owner’s Manual/Service
Manual order information” in the“9.
Technical and consumer information” sec-
tion.)
You should be aware that incomplete or
improper servicing may result in operating
difficulties or excessive emissions, and
could affect your warranty coverage. If in
doubt about any servicing, we recommend

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 anti-freeze 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” in the“6. In case of
emergency” section of this manual.
. 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 manufacture’s instruc-
tions to maintain minimum antifreeze
protection to −348F(−378C). The use of
other types of coolant solutions other
than Genuine NISSAN Long Life Anti-
freeze/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 nondis-
tilled water will reduce the life expec-
tancy of the factory-fill coolant. Refer to
the INFINITI Service and Maintenance
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.

The inverter 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 inverter
cooling system additives are not neces-
sary.
WARNING
.Never remove the coolant reservoir cap
when the engine and inverter are hot.
Wait until the engine and inverter cool
down. Serious burns could be caused by
high pressure fluid escaping from the
radiator.
. The inverter reservoir is equipped with a
pressure type cap. To prevent engine and
inverter damage, use only a genuine
NISSAN inverter reservoir cap.
CAUTION
.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 manufatururer’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 inverter cooling sys-
tem.
. The life expectancy of the factory-fill
coolant is 125,000 miles (200,000 km)
or 15 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.
. Never use any additives in the coolant
such as radiator sealer in the cooling
system. This may cause damage to
electrical equipment such as the motor
and inverter, and also to engine and
transmission.
Maintenance and do-it-yourself8-11
INVERTER COOLING SYSTEM

8-12Maintenance and do-it-yourself
JVM0038X
CHECKING INVERTER COOLANT LE-
VEL
Check the coolant level in the reservoir
when the engine and inverter are cold. If
the coolant level is below the MIN level
*B,
add coolant to the MAX level
*A.
If the inverter cooling system frequently
requires coolant, have it checked by an
INFINITI retailer.
CHANGING INVERTER COOLANT
An INFINITI ratailer can change the inverter
coolant. The service procedure can be
found in the INFINITI Service Manual.
Improper servicing can result in inverter
overheating.
WARNING
. To avoid the danger of being scalded,
never change the coolant when the
inverter is hot.
. Never remove the cap when the inverter
is hot. Serious burns could be caused by
high pressure fluid escaping from the
inverter coolant reservoir.
. 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 the reach of children
and pets.
Inverter coolant must be disposed of
properly. Check your local regulations.
SDI2045
VQ35HR engine
CHECKING ENGINE OIL LEVEL
1. Park the vehicle on a level surface and
apply the parking brake.
2. Run the engine until it reaches operat- ing temperature.
3. Turn off the engine. Wait more than 15
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 within the
range
*1. If the oil level is below*2,
ENGINE OIL

9-2Technical and consumer information
The following are approximate capacities. The actual refill capacities may be a little different. When refilling, follow the procedure
instructed in the“8. Maintenance and do-it-yourself” section to determine the proper refill capacity.
Capacity (Approximate)
Recommended specifications
US measure Imp measure Liter
Fuel 17-7/8 gal 14-7/8 gal 67.4 See “Fuel recommendation”later in this section.
Engine oil*4
Drain and refill
With oil filter change 5-1/8 qt
4-3/8 qt 4.9
.Engine oil with API Certification Mark*1
. Viscosity SAE 5W-30
Without oil filter change 4-7/8 qt 4.0 qt 4.6
Engine cooling system With reservoir 9-1/8 qt7-5/8 qt 8.6 Pre-diluted Genuine NISSAN Long Life Antifreeze/Coolant (blue) or equivalent
Reservoir 7/8 qt3/4 qt 0.8
Inverter cooling system With reservoir 2-3/4 qt2-1/4 qt 2.6
Pre-diluted Genuine NISSAN Long Life Antifreeze/Coolant (blue) or equivalent
Reservoir 1/2 qt
1/2 qt 0.5
Automatic transmission fluid ——— Genuine NISSAN Matic S ATF*2
Differential gear oil ——— API GL-5 Synthetic Gear Oil, Viscosity SAE 75W-90*3
Power steering fluid (PSF) Refill to the proper oil level according to the instructions in the “8.
Maintenance and do-it-yourself” section. Genuine NISSAN E-PSF or equivalent*5
Brake fluid Genuine NISSAN Super Heavy Duty Brake Fluid*6 or equivalent DOT 3
Multi-purpose grease Without limited slip differential NLGI No. 2 (Lithium soap base)
With limited slip differential
Air conditioning system refrigerant ——— HFC-134a (R-134a)*7
Air conditioning system lubricants ——— ND-OIL11
Window washer fluid ——— Genuine NISSAN Windshield Washer Concentrate Cleaner & Antifreeze or equivalent
CAPACITIES AND RECOMMENDED FUEL/
LUBRICANTS

E
ECO drive indicator light ................................... 2-18
ECO mode ......................................................... 5-19
ECO pedal system ............................................. 5-20
Economy
Fuel ............................................................. 5-89
Efficient use of your vehicle ............ Hybrid System-8
Elapsed time ..................................................... 2-31
Elapsed time and trip odometer ........................ 2-31
Emergency hybrid system shut off ...................... 6-2
Emergency shut-off system ............. Hybrid System-4
Emission control information label .................... 9-11
Emission control system warranty ..................... 9-18
Energy flow ............................ Hybrid System-5, 4-11
Energy monitor ................................................. 2-29
Energy monitors .............................. Hybrid System-5
Engine Before starting the INFINITI Direct Response
Hybrid
TMSystem .......................................... 5-12
Break-in schedule ........................................ 5-89
Capacities and
recommended fuel/lubricants ........................ 9-2
Changing engine coolant ............................. 8-10
Changing engine oil and filter ...................... 8-13
Checking engine coolant level ...................... 8-10
Checking engine oil level ............................. 8-12
Emergency engine shut off ........................... 5-11
Engine block heater ................................... 5-102
Engine compartment check locations ............. 8-7
Engine cooling system ................................... 8-9 Engine oil .................................................... 8-12
Engine oil and oil filter recommendation ........ 9-6
Engine oil replacement indicator .................. 2-27
Engine oil viscosity ........................................ 9-7
Engine serial number ................................... 9-10
Engine specifications ..................................... 9-8
If your vehicle overheats .............................. 6-12
Starting the INFINITI Direct Response
Hybrid
TMSystem .......................................... 5-13
Engine coolant temperature gauge .................... 2-32
Entry/exit function Automatic drive positioner ........................... 3-28
EV mode odometer and twin trip odometer ....... 2-31
Event Data Recorders (EDR) ............................... 9-21
Exhaust gas (carbon monoxide) .......................... 5-3
F
F.M.V.S.S./C.M.V.S.S. certification label ............. 9-10
Fail-safe ............................................................ 5-16
Filter Air cleaner housing filter .............................. 8-20
Changing engine oil and filter ...................... 8-13
Flashers (See hazard warning flasher switch) .... 2-45
Flat tire ............................................................... 6-2
Flat towing ........................................................ 9-17
Floor mat ............................................................ 7-6
Fluid
Automatic transmission fluid (ATF) ............... 8-15
Brake fluid ................................................... 8-16
Capacities and
recommended fuel/lubricants ........................ 9-2 Engine coolant ............................................... 8-9
Engine oil .................................................... 8-12
Power steering fluid ..................................... 8-15
Window washer fluid ................................... 8-17
FM-AM-SAT radio with Compact Disc
(CD) player ........................................................ 4-65
Fog light switch ................................................ 2-44
Forest Air
TM....................................................... 4-43
Forward Collision Warning (FCW) system ........... 5-81
Front passenger air bag and status light ........... 1-45
Front power seat adjustment ............................... 1-3
Front seat Front seat adjustment .................................... 1-3
Front-seat active head restraints ......................... 1-7
Fuel Capacities and
recommended fuel/lubricants ........................ 9-2
Fuel economy............................................... 5-89
Fuel economy information (display) .............. 4-12
Fuel octane rating .......................................... 9-4
Fuel recommendation ..................................... 9-4
Fuel-filler cap ............................................... 3-22
Fuel-filler door ............................................. 3-22
Gauge ............................................................ 2-8
Fuel economy history ...................... Hybrid System-7
Fuses ................................................................ 8-24
Fusible links ..................................................... 8-24
G
Garage door opener
HomeLink®Universal Transceiver ................. 2-66
10-3

Key operating range ....................................... 3-8
Key operation .............................................. 3-10
Warning signals ........................................... 3-12
Interior light control switch ............................... 2-64
Interior light replacement .................................. 8-30
Interior lights .................................................... 2-64
Interior trunk lid release ................................... 3-21
Inverter cooling system ..................................... 8-11
iPod
®player operation ..................................... 4-82
ISOFIX child restraint ........................................ 1-22
J
Jump starting ...................................................... 6-9
K
Keyless entry (See remote keyless
entry system) .................................................... 3-14
Keys ................................................................... 3-2 For Intelligent Key system .............................. 3-7
L
Labels
Air bag warning labels ................................. 1-51
Air conditioner specification label ................ 9-11
Emission control information label ............... 9-11
Engine serial number ................................... 9-10
F.M.V.S.S./C.M.V.S.S. certification label ........ 9-10
Tire and Loading information label ...... 8-34, 9-11
Vehicle identification number (VIN) ................ 9-9 Lane Departure Prevention (LDP) ON
indicator light ................................................... 2-19
Lane Departure Prevention (LDP) system ........... 5-26
Lane departure warning (LDW) system .............. 5-22
Lane Departure Warning (LDW) system/Lane
Departure Prevention (LDP) system ................... 5-22
Lane departure warning light ............................ 2-14
LATCH system ................................................... 1-22
LDP system operation ....................................... 5-27
LDW system operation ...................................... 5-23
License plate Installing front license plate ......................... 9-12
Light
Air bag warning light ................................... 1-51
Bulb replacement ......................................... 8-29
Fog light switch ........................................... 2-44
Headlight switch .......................................... 2-40
Headlights bulb replacement ....................... 8-29
Indicator lights ............................................ 2-17
Interior light control switch .......................... 2-64
Interior lights ............................................... 2-64
Map lights ................................................... 2-64
Personal lights ............................................. 2-64
Replacement ................................................ 8-29
Trunk light ................................................... 2-66
Vanity mirror lights ...................................... 2-65
Warning/indicator lights and
audible reminders ........................................ 2-11
Xenon headlights ......................................... 2-39
Lights Exterior and interior light replacement ......... 8-30 Li-ion battery state of charge and
acceleration guide ............................................ 2-29
Linking intelligent key ....................................... 4-48
Lithium-ion (Li-ion) battery .............. Hybrid System-2
Loading information (See vehicle
loading information) ......................................... 9-13
Lock
Automatic door locks ..................................... 3-6
Door locks ..................................................... 3-4
Power door lock ............................................. 3-4
Trunk lid ...................................................... 3-18
Locking with mechanical key ............................... 3-4
Loose fuel cap warning ............................ 2-25, 3-23
Low outside temperature warning ..................... 2-26
Low tire pressure warning light ......................... 2-15
Low tire pressure warning system
(See tire pressure monitoring
system (TPMS)) ................................... 5-4, 6-2, 8-32
M
Maintenance
Battery ......................................................... 8-18
General maintenance ..................................... 8-3
Indicators for maintenance (dot matrix) ........ 2-27
Inside the vehicle .......................................... 8-3
Maintenance information (display) ............... 4-14
Maintenance precautions ............................... 8-5
Maintenance requirements ............................. 8-2
Outside the vehicle ........................................ 8-3
Seat belt maintenance ................................. 1-17
Under the hood and vehicle ........................... 8-4
10-5