2014 INFINITI Q50 oil

6-8In case of emergency
SCE0661
Installing the spare tire
The T-type spare tire (if so equipped) is
designed for emergency use. (See specific
instructions under the heading“Wheels
and tires” (P.8-29).)
1. Clean any mud or dirt from the surface between the wheel and hub.
2. Carefully put the spare tire on and tighten the wheel nuts finger tight.
3. With the wheel nut wrench, tighten wheel nuts alternately and evenly in the
sequence as illustrated (
*1,*2,*3,
*4,*5) until they are tight. 4. Lower the vehicle slowly until the tire
touches the ground. Then, with the
wheel nut wrench, tighten the wheel
nuts securely in the sequence as
illustrated. Lower the vehicle comple-
tely.
WARNING
. Incorrect wheel nuts or improperly tigh-
tened wheel nuts can cause the wheel to
become loose or come off. This could
cause an accident.
. Do not use oil or grease on the wheel
studs or nuts. This could cause the nuts
to become loose.
. Retighten the wheel nuts when the
vehicle has been driven for 600 miles
(1,000 km) (also in cases of a flat tire,
etc.).
.As soon as possible, tighten the
wheel nuts to the specified torque
with a torque wrench.
Wheel nut tightening torque: 80 ft-lb (108 N·m)
The wheel nuts must be kept tigh-
tened to specification at all times. It is recommended that wheel nuts be
tightened to specifications at each
lubrication interval.
.Adjust tire pressure to the COLD
pressure.
COLD pressure:
After the vehicle has been parked
for three hours or more or driven
less than 1 mile (1.6 km).
COLD tire pressures are shown on
the Tire and Loading Information
label affixed to the driver side center
pillar.

.Wax your vehicle only after a thorough
washing. Follow the instructions sup-
plied with the wax.
. Do not use a wax containing any
abrasives, cutting compounds or clea-
ners that may damage the vehicle
finish.
Machine compound or aggressive polish-
ing on a base coat/clear coat paint finish
may dull the finish or leave swirl marks.
REMOVING SPOTS
Remove tar and oil spots, industrial dust,
insects, and tree sap as quickly as possible
from the paint surface to avoid lasting
damage or staining. Special cleaning
products are available at an INFINITI
retailer or any automotive accessory
stores.
UNDERBODY
In areas where road salt is used in winter,
the underbody must be cleaned regularly.
This will prevent dirt and salt from building
up and causing the acceleration of corro-
sion on the underbody and suspension.
Before the winter period and again in the
spring, the underseal must be checked
and, if necessary, re-treated.
GLASS
Use glass cleaner to remove smoke and
dust film from the glass surfaces. It is
normal for glass to become coated with a
film after the vehicle is parked in the hot
sun. Glass cleaner and a soft cloth will
easily remove this film.
CAUTION
When cleaning the inside of the windows,
do not use sharp-edged tools, abrasive
cleaners or chlorine-based disinfectant clea-
ners. They could damage the electrical
conductors, radio antenna elements or rear
window defroster elements.
WHEELS
Wash the wheels when washing the vehicle
to maintain their appearance.
. Clean the inner side of the wheels when
the wheel is changed or the underside
of the vehicle is washed.
. Inspect wheel rims regularly for dents
or corrosion. Such damage may cause
loss of pressure or poor seal at the tire
bead. .
INFINITI recommends that the road
wheels be waxed to protect against
road salt in areas where it is used
during winter.
CAUTION
Do not use abrasive cleaners when washing
the wheels.
Aluminum alloy wheels
Wash regularly with a sponge dampened in
a mild soap solution, especially during
winter months in areas where road salt is
used. Salt could discolor the wheels if not
removed.
CAUTION
Follow the directions below to avoid stain-
ing or discoloring the wheels:
. Do not use a cleaner that uses strong
acid or alkali contents to clean the
wheels.
. Do not apply wheel cleaners to the
wheels when they are hot. The wheel
temperature should be the same as
Appearance and care7-3

7-4Appearance and care
ambient temperature.
. Rinse the wheel to completely remove
the cleaner within 15 minutes after the
cleaner is applied.
Bright wheels (if so equipped)
The bright wheels use a different coating
process than typical aluminum alloy wheel
and they are not plated wheels. These
wheels are clear-coated and require the
following special cleaning. They should be
regularly washed with a soft sponge
soaked in a lot of water. After washing
with water, wipe clean with a dry, soft cloth
and dry completely. When there is chemical
or tire wax, or dirt such as an antifreeze
agent on the surface, wash them with
water as soon as possible.
CAUTION
.The surfaces of the wheels use a
different coating process than typical
aluminum alloy wheels. Do not use
aluminum alloy wheel cleaners or abra-
sive cleaners to clean the wheels. Using
such cleaners could damage the wheel
surfaces. .
Do not use an automatic car wash if the
vehicle is equipped with bright wheels.
The wheel coating may be damaged.
. Do not use a brush to wash the wheels if
the vehicle is equipped with bright
wheels. The wheel coating may be
damaged.
CHROME PARTS
Clean chrome parts regularly with a non-
abrasive chrome polish to maintain the
finish.
TIRE DRESSING
INFINITI does not recommend the use of
tire dressings. Tire manufacturers apply a
coating to the tires to help reduce dis-
coloration of the rubber. If a tire dressing is
applied to the tires, it may react with the
coating and form a compound. This com-
pound may come off the tire while driving
and stain the vehicle paint.
If you choose to use a tire dressing, take
the following precautions:
.Use a water-based tire dressing. The
coating on the tire dissolves more
easily with an oil-based tire dressing. .
Apply a light coat of tire dressing to
help prevent it from entering the tire
tread/grooves (where it would be diffi-
cult to remove).
. Wipe off excess tire dressing using a
dry towel. Make sure the tire dressing
is completely removed from the tire
tread/grooves.
. Allow the tire dressing to dry as
recommended by tire dressing manu-
facturer.

Occasionally remove loose dust from the
interior trim, plastic parts and seats using
a vacuum cleaner or soft bristled brush.
Wipe the vinyl and leather surfaces with a
clean, soft cloth dampened in mild soap
solution, then wipe clean with a dry soft
cloth.
Regular care and cleaning is required in
order to maintain the appearance of the
leather.
Before using any fabric protector, read the
manufacturer’s recommendations. Some
fabric protectors contain chemicals that
may stain or bleach the seat material.
Use a cloth dampened only with water, to
clean the meter and gauge lens.
WARNING
Do not use water or acidic cleaners (hot
steam cleaners) on the seat. This can
damage the seat or occupant classification
sensors. This can also affect the operation
of the air bag system and result in serious
personal injury.
CAUTION
. Never use benzine, thinner, or any
similar material.
. For cleaning, use a soft cloth, dampened
with water. Never use a rough cloth,
alcohol, benzine, thinner or any kind of
solvent or paper towel with a chemical
cleaning agent. They will scratch or
cause discoloration to the lens.
. Do not spray any liquid such as water on
the meter lens. Spraying liquid may
cause the system to malfunction.
. Small dirt particles can be abrasive and
damaging to the leather surfaces and
should be removed promptly. Do not use
saddle soap, car waxes, polishes, oils,
cleaning fluids, solvents, detergents or
ammonia-based cleaners as they may
damage the leather’s natural finish.
. Only use fabric protectors approved by
INFINITI.
. Do not use glass or plastic cleaner on
meter or gauge lens covers. It may
damage the lens cover.
AIR FRESHENERS
Most air fresheners use a solvent that
could affect the vehicle interior. If you use
an air freshener, take the following pre-
cautions:
.Hanging-type air fresheners can cause
permanent discoloration when they
contact vehicle interior surfaces. Place
the air freshener in a location that
allows it to hang free and not contact
an interior surface.
. Liquid-type air fresheners typically clip
on the vents. These products can cause
immediate damage and discoloration
when spilled on interior surfaces.
Carefully read and follow the manufac-
turer’s instructions before using air fresh-
eners.
MOONROOF SUNSHADE (if so
equipped)
The moonroof sunshade is made from a
suede material.
Clean the sunshade material as follows:
Appearance and care7-5
CLEANING INTERIOR

7-6Appearance and care
CAUTION
To help prevent damaging the sunshade
while cleaning:
.Do not rub the material with a cloth.
Doing so can damage the surface of the
material or cause a stain to spread.
. Never use benzine, thinner or any similar
chemical to clean the suede. This may
discolor the sunshade and damage the
surface.
. Clean water based stains by patting the
surface with a clean soft cloth dampened
in warm water. Press a clean dry cloth
onto the surface to remove as much
dampness as possible and then let air
dry.
. Clean oil based stains by patting the
surface with a clean soft cloth dampened
in warm water. Press a clean dry cloth
onto the surface to remove as much
dampness as possible and then let air
dry.
FLOOR MATS
WARNING
To avoid potential pedal interference that
may result in a collision or injury:
.NEVER place a floor mat on top of
another floor mat in the driver front
position.
. Use only genuine NISSAN floor mats
specifically designed for use in your
vehicle model. See your INFINITI retailer
for more information.
. Properly position the mats in the floor-
well using the floor mat positioning aid.
See “Floor mat positioning aid” (P.7-6).
The use of INFINITI floor mats can extend
the life of your vehicle carpet and make it
easier to clean the interior. Mats should be
maintained with regular cleaning and
replaced if they become excessively worn.
SAI0050
Front (example)
Floor mat positioning aid
This model includes front floor mat brack-
ets to act as floor mat positioning aid.
INFINITI floor mats have been specially
designed for your vehicle model. The front
floor mats have grommet holes in them. To
install, simply position the mat by placing
the floor mat bracket through the floor mat
grommet hole while centering the mat in
the floor pan contour.
Periodically check to make certain that the
mats are properly positioned.

8 Maintenance and do-it-yourself
Maintenance requirement .................................... 8-2Scheduled 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 ................... 8-6 VQ37VHR engine ............................................. 8-6
Engine cooling system ......................................... 8-8
Checking engine coolant level ......................... 8-9
Changing engine coolant ................................. 8-9
Engine oil .......................................................... 8-10
Checking engine oil level............................... 8-10
Changing engine oil and filter ....................... 8-10
Automatic transmission fluid ............................. 8-12
Power steering fluid (if so equipped) ................. 8-13
Brake fluid......................................................... 8-13
Window washer fluid ......................................... 8-14
Battery .............................................................. 8-15
Jump starting ................................................ 8-16
Variable voltage control system ......................... 8-17
Drive belts ......................................................... 8-17 Spark plugs ...................................................... 8-18
Replacing spark plugs ................................. 8-18
Air cleaner ........................................................ 8-19
Windshield wiper blades ................................... 8-20 Cleaning ...................................................... 8-20
Replacing..................................................... 8-20
Brakes .............................................................. 8-21 Self-adjusting brakes ................................... 8-21
Brake pad wear warning .............................. 8-21
Fuses ................................................................ 8-22
Engine compartment .................................... 8-22
Passenger compartment............................... 8-23
Intelligent Key battery replacement ................... 8-24
Lights................................................................ 8-26 Headlights ................................................... 8-27
Exterior and interior lights ........................... 8-27
Wheels and tires ............................................... 8-29 Tire pressure ............................................... 8-29
Tire labeling ................................................ 8-33
Types of tires............................................... 8-35
Tire chains ................................................... 8-37
Changing wheels and tires........................... 8-38

8-4Maintenance and do-it-yourself
seat adjusters, seatback recliner, etc. to
ensure they operate smoothly and that all
latches lock securely in every position.
Check that the head 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
steering 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
properly.
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 tempera- tures or under severe condition require
frequent checks of the battery fluid level.
NOTE:
Care should be taken to avoid situations
that can lead to potential battery dis-
charge and potential no-start conditions
such as:
1.
Installation or extended use of electro-
nic accessories that consume battery
power when the engine is not running
(Phone chargers, GPS, DVD players,
etc.)
2. Vehicle is not driven regularly and/or
only driven short distances.
In these cases, the battery may need to be
charged to maintain battery health.
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, im-
mediately have the exhaust system in-
spected by an INFINITI retailer. (See
“Precautions when starting and driving”
(P.5-3).)
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 corrected 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
exposed to corrosive substances such as
those used on icy roads or to control dust.

8-6Maintenance and do-it-yourself
even when the engine 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 damage the environment. Always
conform to local regulations for disposal
of vehicle fluid.
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” (P.9-23).)
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
that it be done by an INFINITI retailer.
JVM0249X
VQ37VHR ENGINE
To remove the engine compartment cover,
unhook the clips located as illustrated.
ENGINE COMPARTMENT CHECK LOCATIONS