2014 INFINITI Q50-HYBRID cooling

8-10Maintenance and do-it-yourself
JVM0251X
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
.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.
. 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.
Maintenance and do-it-yourself8-11
INVERTER COOLING SYSTEM

8-12Maintenance and do-it-yourself
JVM0326X
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
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,
remove the oil filler cap and pour
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 20 gal16-5/8 gal 76See“Fuel information” (P.9-4).
Engine oil*1
Drain and refill
With oil filter change 5-1/8 qt
4-3/8 qt 4.9
.Genuine NISSAN engine oil or equivalent*2
. Engine oil with API Certification Mark*3
. Viscosity SAE 5W-30
Without oil filter change 4-7/8 qt
4.0 qt 4.6
Engine cooling system With reservoir 11-3/8 qt9-1/2 qt 10.8 Pre-diluted Genuine NISSAN Long Life Antifreeze/Coolant (blue) or equivalent
Reservoir 1 qt3/4 qt 0.9
Inverter cooling system With reservoir 2-1/2 qt2-1/8 qt 2.4
Pre-diluted Genuine NISSAN Long Life Antifreeze/Coolant (blue) or equivalent
Reservoir 3/8 qt
3/8 qt 0.4
Automatic transmission fluid ——— Genuine NISSAN Matic S ATF*4
Differential gear oil ——— Front: Genuine NISSAN Differential Oil Hypoid Super GL-5 80W-90 or API GL-5, Viscosity SAE
80W-90*5
Rear: API GL-5 Synthetic Gear Oil, Viscosity SAE 75W-90*6
Transfer fluid ——— Genuine NISSAN Matic J ATF*7
Brake fluid Refill to the proper oil level according to the instructions in the “8.
Maintenance and do-it-yourself” section. Genuine NISSAN Super Heavy Duty Brake Fluid*8 or equivalent DOT 3
Multi-purpose grease ——— NLGI No. 2 (Lithium soap base)
Air conditioning system refrigerant ——— HFC-134a (R-134a)*9
Air conditioning system lubricants ——— AE-10
Window washer fluid ——— Genuine NISSAN Windshield Washer Concentrate Cleaner & Antifreeze or equivalent
*1:
For additional information, see “Engine oil”(P.8-12) for changing engine oil.*2:INFINITI recommends Genuine NISSAN Ester Engine Oil available at your INFINITI retailer.*3:For additional information, see “Engine oil and oil filter recommendation” (P.9-6).*4:Using automatic transmission fluid other than Genuine NISSAN Matic S ATF will cause deterioration in driveability and automatic transmission durability, and may damage the automatic
transmission, which is not covered by the INFINITI new vehicle limited warranty.
*5For hot climates, viscosity SAE 90 is suitable for ambient temperatures above 328F(0 8C).
CAPACITIES AND RECOMMENDED FUEL/
LUBRICANTS

10-2
LATCH system .............................................. 1-21
Precautions on child restraints ..................... 1-19
Child safety ...................................................... 1-17
Child safety rear door lock .................................. 3-6
Chimes Audible reminders ....................................... 2-20
Seat belt warning light and chime ............... 2-17
Circuit breaker Fusible link .................................................. 8-23
Cleaning exterior and interior ....................... 7-2, 7-5
Clock ................................................................ 2-34
Coat hooks ....................................................... 2-53
Cockpit ............................................................... 2-3
Cold weather driving ....................................... 5-113
Compass ............................................................. 2-9
Console box ...................................................... 2-52
Coolant Capacities and recommended
fuel/ lubricants .............................................. 9-2
Changing engine coolant ............................. 8-10
Checking engine coolant level ...................... 8-10
Corrosion protection ........................................... 7-8
Courtesy light ................................................... 2-61
Cruise control ................................................... 5-56 Fixed speed cruise control (on ICC system) ... 5-74
Intelligent Cruise Control (ICC) system .......... 5-58
Cruise indicator ................................................ 2-27 Cup holders ...................................................... 2-49
Current fuel consumption .................................. 2-33D
Daytime running light system ........................... 2-45
Defroster switch Rear window and outside mirror
defroster switch ........................................... 2-41
Dimensions ....................................................... 9-10
Direct adaptive steering .................................. 5-104
Direct Response Hybrid
®System warning light
(hybrid system warning light) ............................ 2-14
Distance Control Assist (DCA) system ................ 5-79
Distance to empty ............................................. 2-33
Drive positioner ................................................ 3-28
Driver assist system indicator ........................... 2-28
Driving Cold weather driving .................................. 5-113
Driving with automatic transmission ............ 5-14
Precautions when starting and driving ........... 5-3
Driving aids ...................................................... 2-34
E
ECO drive indicator light ................................... 2-18
ECO mode ......................................................... 5-21
ECO pedal system ............................................. 5-22
Economy Fuel ........................................................... 5-100
Efficient use of your vehicle ............ Hybrid System-8
Elapsed time ..................................................... 2-33
Elapsed time and trip odometer ........................ 2-33
Emergency shut-off system ............. Hybrid System-4
Emission control information label .................... 9-12 Emission control system warranty ..................... 9-20
Energy flow ..................................... Hybrid System-5
Energy monitor ................................................. 2-31
Energy monitors .............................. Hybrid System-5
Engine
Break-in schedule ........................................ 5-99
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 hybrid system shut off ............... 5-12
Engine block heater ................................... 5-114
Engine compartment check locations ............. 8-7
Engine cooling system ................................... 8-9
Engine oil .................................................... 8-12
Engine oil and filter replacement indicator ... 2-29
Engine oil and oil filter recommendation ........ 9-6
Engine oil viscosity ........................................ 9-7
Engine serial number ................................... 9-12
Engine specifications ..................................... 9-8
If your vehicle overheats ................................ 6-7
Engine coolant temperature gauge .................... 2-33
Entry/exit function
Automatic drive positioner ........................... 3-28
EV mode odometer and twin trip odometer ....... 2-31
Event Data Recorders (EDR) ............................... 9-23
Exhaust gas (carbon monoxide) .......................... 5-3

10-4
Indicator lights ................................................. 2-18
INFINITI Direct Response
Hybrid
®System .............................. Hybrid System-2
Before starting the INFINITI Direct Response
Hybrid
®System ........................................... 5-13
Starting the INFINITI Direct Response
Hybrid
®System ........................................... 5-14
INFINITI Drive Mode Selector ............................. 5-21
Infiniti InTouch Owner’s Manual .......................... 4-2
INFINITI Vehicle Immobilizer System .................. 2-37 Engine start ................................................. 2-37
Inside mirror ..................................................... 3-25
Inspection/maintenance (I/M) test .................... 9-22
Instrument brightness control ........................... 2-46
Instrument panel ................................................ 2-5
Intelligent All-Wheel Drive (AWD) ..................... 5-101
Intelligent Cruise Control (ICC) system ............... 5-58
Intelligent Cruise Control (ICC) system
ON indicator ..................................................... 2-28
Intelligent Key ..................................................... 3-2
Intelligent Key system ......................................... 3-6 Battery replacement ..................................... 8-25
Key operating range ....................................... 3-8
Key operation ................................................ 3-9
Warning signals ........................................... 3-12
Interior light control switch ............................... 2-59
Interior light replacement .................................. 8-28
Interior lights .................................................... 2-58
Interior trunk lid release ................................... 3-21
Inverter cooling system ..................................... 8-11
ISOFIX child restraint ........................................ 1-21
J
Jump starting ...................................................... 6-5
K
Keyless entry (See remote keyless
entry system) .................................................... 3-14
Keys ................................................................... 3-2 For Intelligent Key system .............................. 3-6
L
LabelsAir bag warning labels ................................. 1-50
Air conditioner specification label ................ 9-13
Emission control information label ............... 9-12
Engine serial number ................................... 9-12
F.M.V.S.S./C.M.V.S.S. certification label ........ 9-12
Tire and Loading information label ...... 8-31, 9-13
Vehicle identification number (VIN) .............. 9-11
Lane Departure Prevention (LDP) system ........... 5-33
Lane Departure Warning (LDW) system .............. 5-31
Lane Departure Warning (LDW) system/Lane
Departure Prevention (LDP) system ................... 5-30
LATCH system ................................................... 1-21
License plate Installing front license plate ......................... 9-14
Light Air bag warning light ................................... 1-50
Bulb replacement ......................................... 8-27 Fog light switch ........................................... 2-47
Headlight switch .......................................... 2-41
Indicator lights ............................................ 2-18
Interior light control switch .......................... 2-59
Interior lights ............................................... 2-58
Map lights ................................................... 2-58
Personal lights ............................................. 2-59
Replacement ................................................ 8-27
Trunk light ................................................... 2-60
Vanity mirror lights ...................................... 2-60
Warning/indicator lights and
audible reminders ........................................ 2-12
Lights
Exterior and interior light replacement ......... 8-28
Lithium-ion (Li-ion) battery .............. Hybrid System-2
Loading information (See vehicle
loading information) ......................................... 9-16
Lock Automatic door locks ..................................... 3-5
Door locks ..................................................... 3-4
Power door lock ............................................. 3-4
Trunk lid ...................................................... 3-19
Locking with mechanical key ............................... 3-4
Log-in function .................................................. 3-14
Loose Fuel Cap warning ........................... 2-25, 3-23
Low fuel warning light ...................................... 2-15
Low outside temperature warning ..................... 2-27
Low tire pressure warning light ......................... 2-15
Low tire pressure warning system (See Tire Pressure
Monitoring System (TPMS)) ................. 5-4, 6-3, 8-30