Switch INFINITI Q50 2018 Owners Manual

JVE0194X
2.0L turbo gasoline engine
4. For 2.0L turbo gasoline engine model:
Pull up the engine cover and remove it.
5. Connect jumper cables in the sequence as illustrated (
???).
CAUTION
.Always connect positive (+) to posi-
tive (+) and negative (−) to body
ground (as illustrated) − not to the
battery.
. Make sure the jumper cables do not
touch moving parts in the engine
compartment and that clamps do
not contact any other metal. 6. Start the engine of the booster vehicle
and let it run for a few minutes.
7. Keep the engine speed of the booster vehicle
at about 2,000 rpm, and start
the engine of the vehicle being jump
started
.
CAUTION
Do not keep the starter motor engaged
for more than 10 seconds. If the engine
does not start right away, push the
ignition switch to the OFF position and
wait 10 seconds before trying again.
8. After starting your engine, carefully disconnect the negative cable and then
the positive cable (
???).
9. Replace the vent caps (if so equipped). Be sure to dispose of the cloth used to
cover the vent holes as it may be
contaminated with corrosive acid.
10. Put the battery cover and the engine cover back to the original location.
NOTE:
For 2.0L turbo gasoline engine models, if
the engine cannot be started after the
procedure above, the auxiliary battery
may be discharged. Connect the jumper cables to the auxiliary battery and apply
the procedure shown in “Auxiliary battery
(for 2.0L turbo gasoline engine models)”
(P.6-14).
In case of emergency6-13

6-14In case of emergency
JVE0142X
2.0L turbo gasoline engine
AUXILIARY BATTERY (for 2.0L
turbo gasoline engine models)
1. If the booster battery is in anothervehicle, position the two vehiclesandto bring the batteries into close
proximity to each other.
CAUTION
. Do not allow the two vehicles to
touch.
2. Apply the parking brake. 3. Move the shift lever to the “P” (Park)
position.
4. Switch off all unnecessary electrical systems (headlights, heater, air condi-
tioner, etc.).
5. Push the ignition switch to the “OFF” position.

JVE0143X
6. Open the trunk.
7. Remove the clip
, then remove the
trunk trim.
8. Remove the vent caps, if so equipped, on the battery.
9. Connect the jumper cables in the se- quence as illustrated (
,,,).
CAUTION
.Always connect positive +to posi-
tive +and negative 7to body
ground, NOT to the battery’s nega-
tive 7. .
Be sure that the jumper cables do not
touch moving parts in the engine
compartment.
. Be sure that the jumper cable’s
clamps do not contact any other
metal.
10. Start the engine of the booster vehicle
and let it run for a few minutes.
11. Depress the accelerator pedal of the booster vehicle
at about 2,000 rpm.
12. Start the engine of the jumped vehicle
in the normal manner.
CAUTION
Never keep the starter motor engaged
for more than 10 seconds. If the engine
does not start right away, push the
ignition switch to the “LOCK” position
and wait at least 10 seconds before
trying again.
13. After the engine is started, carefully disconnect the jumper cables in the
opposite sequence from that illustrated
(
,,,).
14. Replace the vent caps, if removed.
15. Replace the trunk trim.
NOTE:
. If the engine cannot be started after the
procedure above, both the main and the
auxiliary batteries may be discharged.
Jump-start the vehicle by connecting
one set of the jumper cables to the main
battery and another set of the jumper
cables to the auxiliary battery at the
same time, using the procedure for
jump-starting each battery.
. If the engine cannot be started, even
when the main and the auxiliary bat-
teries are jump-started at the same
time, it is recommended you contact an
In case of emergency6-15

6-18In case of emergency
towing.
For information about towing your vehicle
behind a recreational vehicle (RV), see “Flat
towing” (P.10-22) of this manual.
SCE0788
Two-Wheel Drive (2WD) models
TOWING RECOMMENDED BY
INFINITI
Two-Wheel Drive (2WD) models
INFINITI recommends that your vehicle be
towed with the driving (rear) wheels off the
ground or place the vehicle on a flat bed
truck as illustrated.
CAUTION
. Never tow automatic transmission
models with the rear wheels on the
ground or four wheels on the ground (forward or backward), as this may
cause serious and expensive damage
to the transmission. If it is necessary
to tow the vehicle with the front
wheels raised, always use towing
dollies under the rear wheels.
. When towing rear wheel drive models
with the front wheels on the ground
or on towing dollies: Push the ignition
switch to the ACC or ON position,
and secure the steering wheel in a
straight-ahead position with a rope
or similar device.

When performing any inspection or main-
tenance work on your vehicle, always take
care to prevent serious accidental injury to
yourself or damage to the vehicle. The
following are general precautions which
should be closely observed.
WARNING
.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
lever to P (Park).
. Be sure the ignition switch is in the
OFF or LOCK position when per-
forming any parts replacement or
repairs.
. Never connect or disconnect the
battery or any transistorized compo-
nent while the ignition switch is in the
ON position.
. Never leave the engine or automatic
transmission related component har-
nesses disconnected while the igni-
tion switch is in the ON position.
. If you must work with the engine
running, keep your hands, clothing,
hair and tools away from moving
fans, belts and any other moving parts.
. 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 when-
ever you work on your vehicle.
. 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 fuel tank and the
battery.
. Your vehicle is equipped with an
automatic engine cooling fan. It may
come on at any time without warn-
ing, even if the ignition key is in the
OFF position and the engine is not
running. To avoid injury, always dis-
connect the negative battery cable
before working near the fan.
. Because the fuel lines are under high
pressure even when the engine is off,
it is recommended you visit an
INFINITI retailer for service of the fuel filter or fuel lines.
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 en-
gine oil and coolant. Improperly dis-
posed engine oil, coolant, and/or
other vehicle fluids can damage the
environment. Always conform to lo-
cal regulations for disposal of vehicle
fluid.
This “8. Do-it-yourself” section gives in-
structions 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.10-26).)
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, it is recommended you
have it done by an INFINITI retailer.
Do-it-yourself8-3
MAINTENANCE PRECAUTIONS

CAUTION
.Do not ground accessories directly to
the battery terminal. Doing so will
bypass the variable voltage control
system and the vehicle battery may
not charge completely.
. Use electrical accessories with the
engine running to avoid discharging
the vehicle battery.
The variable voltage control system mea-
sures the amount of electrical discharge
from the battery and controls voltage gen-
erated by the generator.
JVM0655X
VR30DDTT engine
1. Water pump
2. Alternator
3. Drive belt auto-tensioner
4. Crankshaft pulley
5. Air conditioner compressor
JVM0433X
2.0L turbo gasoline engine
1. Water pump
2. Crankshaft pulley
3. Drive belt auto-tensioner
4. Air conditioner compressor
5. Alternator
WARNING
Be sure the ignition switch is in the OFF
or LOCK position before servicing drive
belts. The engine could rotate unexpect-
edly.
Do-it-yourself8-19
VARIABLE VOLTAGE CONTROL SYSTEMDRIVE BELTS

8-20Do-it-yourself
1. Visually inspect each belt for signs ofunusual wear, cuts, fraying or looseness.
If the belt is in poor condition or loose,
have it replaced or adjusted. It is recom-
mended you visit an INFINITI retailer for
this service.
2. Have the belts checked regularly for condition and tension in accordance with
the maintenance schedule shown in the
“9. Maintenance and schedules” section.
WARNING
Be sure the engine and the ignition
switch are off and that the parking
brake is engaged securely.
CAUTION
Be sure to use the correct socket to
remove the spark plugs. An incorrect
socket can damage the spark plugs.
SDI2020
REPLACING SPARK PLUGS
If replacement is required, it is recommended
you visit an INFINITI retailer for this service.
Iridium-tipped spark plugs
It is not necessary to replace the iridium-
tipped spark plugs as frequently as the
conventional type spark plugs since they will
last much longer. Follow the maintenance
schedule shown in the “9. Maintenance and
schedules” section, but do not reuse them by
cleaning or regapping.
Always replace spark plugs with recom-
mended or equivalent ones.
SPARK PLUGS

8-22Do-it-yourself
SDI2048
REPLACING
Replace the wiper blades if they are worn.
Before replacing the wiper blades, the wiper
should be in the fully up position to avoid
scratching the engine hood or damaging the
wiper arm. To pull up the wiper arm, see
“Wiper and washer switch” (P.2-33).
1. Pull the wiper arm.
2. Push the release tab
, and then move
the wiper blade down the wiper arm
while pushing the release tab to remove.
3. Insert the new wiper blade onto the wiper arm until a click sounds. 4. Rotate the wiper blade so the dimple is in
the groove.
CAUTION
.After wiper blade replacement, re-
turn the wiper arm to its original
position;
otherwise it may be damaged when
the hood is opened.
. Make sure the wiper blades contact
the glass; otherwise the arm may be
damaged from wind pressure. If the brakes do not operate properly, have
the brakes checked. It is recommended you
visit an INFINITI retailer for this service.
SELF-ADJUSTING BRAKES
Your vehicle is equipped with self-adjusting
brakes.
The disc-type brakes self-adjust every time
the brake pedal is applied.
WARNING
Have your brake system checked if the
brake pedal height does not return to
normal. It is recommended you visit an
INFINITI retailer for this service.
BRAKE PAD WEAR WARNING
The disc brake pads have audible wear
warnings. When a brake pad requires repla-
cement, it will make a high pitched scraping
sound when the vehicle is in motion. This
scraping sound will first occur only when the
brake pedal is depressed. After more wear of
the brake pad, the sound will always be
heard even if the brake pedal is not
depressed. Have the brakes checked as soon
as possible if the wear warning sound is
heard.
BRAKES

8-24Do-it-yourself
JVM0306X
2.0L turbo gasoline engine model (trunk)
ENGINE COMPARTMENT
WARNING
Never use a fuse of a higher or lower
amperage rating than that specified on
the fuse box cover. This could damage
the electrical system or electronic con-
trol units or cause a fire.
If any electrical equipment does not operate,
check for an open fuse.
1. Be sure the ignition switch is placed in the OFF or LOCK position and the headlight switch is turned to OFF.
2. Open the engine hood.
3. Remove the fuse/fusible link holder cover.
4. Remove the fuse with the fuse puller.
SDI1754
5. If the fuse is open, replace it with a
new fuse. Spare fuses are stored in the
passenger compartment fuse box.
6. If a new fuse also opens, have the electrical system checked and repaired.
It is recommended you visit an INFINITI
retailer for this service.
Fusible links
If any electrical equipment does not operate
and fuses are in good condition, check the
fusible links. If any of these fusible links are
melted, replace only with genuine INFINITI
parts.

JVM0256X
PASSENGER COMPARTMENT
WARNING
Never use a fuse of a higher or lower
amperage rating than that specified on
the fuse box cover. This could damage
the electrical system or electronic con-
trol units or cause a fire.
If any electrical equipment does not operate,
check for an open fuse.
1. Be sure the ignition switch is placed in the OFF or LOCK position and the
headlight switch is turned to OFF. 2. Open the fuse box lid.
3. Remove the fuse with the fuse puller
.
4. If the fuse is open, replace it with a new fuse.
5. If a new fuse also opens, have the electrical system checked and repaired.
It is recommended you visit an INFINITI
retailer for this service. Spare fuses are
stored in the fuse box.
JVM0257X
Extended storage fuse switch (if so
equipped)
To reduce battery drain, the extended
storage fuse switch comes from the factory
switched off. Prior to delivery of your
vehicle, the switch is pushed in (switched
on) and should always remain on.
If the extended storage fuse switch is not
pushed in (switched on), the “Shipping Mode
On, Push Storage Fuse” warning may appear
in the vehicle information display. See “20.
Extended storage fuse warning” (P.2-23).
If any electrical equipment does not operate,
remove the extended storage fuse switch
and check for an open fuse.
Do-it-yourself8-25