2018 INFINITI Q50 Headlight

5-138Starting and driving
NOTE:
It may take some time until the Idling Stop
System activates under the following con-
ditions:
.when the battery is discharged.
. when the outside temperature is low or
high.
. when the battery is replaced or the
battery terminal is disconnected for
extended periods and then reconnected.
NOTE:
When the Idling Stop System indicator light
illuminates, the engine starts running auto-
matically under at least one of the following
conditions:
. The brake pedal is released with the shift
lever in the D (Drive) or N (Neutral)
position.
. The shift lever is placed in the D (Drive)
or R (Reverse) position from the N
(Neutral) or P (Park) position.
. The driver’s seat belt is unfastened, or
the driver’s door is open.
. The battery voltage becomes low (due to
electrical load from other vehicle sys-
tems like headlights, heaters, etc., or
auxiliary devices connected to the 12
volt socket inside the vehicle).
. The vehicle speed is above about 1 MPH
(2 km/h). .
The front defroster is operated.
. The rear window defroster is operated.
. When the temperature inside the vehicle
is lower than approximately 68°F
(20°C).
. When the temperature inside the vehicle
is higher than approximately 86°F
(30°C). (When the air conditioner is
off, the Idling Stop System will operate.)
. When the front defroster is turned on.
(The engine may not starts depending
on the outside temperature.)
. When more than 3 minutes have elapsed
since the Idling Stop System was active.
. When the accelerator pedal is depressed.
. When the steering wheel is operated.
(The steering wheel operation may be-
come heavy, but this is not a malfunc-
tion.)
. When the battery capacity is low.
. When the power consumption is high.
. When the shift lever is placed in the R
(Reverse) position.
NOTE:
The following condition will prevent the
Idling Stop System from automatically re-
starting the engine. Starting the engine
with the ignition switch operation is then
necessary: .
The hood is open.
Use this system while waiting at stoplight,
etc. When the vehicle is stopped for long
periods of time, turn off the engine.
When the engine is stopped by the Idling
Stop System, heating, cooling and dehumi-
difying functions will be deactivated. To
avoid the air conditioning functions from
being deactivated, turn off the Idling Stop
mode by pushing the Idling Stop OFF switch.
RETROGRADE MOVEMENT
CONTROL FUNCTION
This system is designed to reduce the retro-
grade movement that occurs while the
driver’s foot changes from depressing the
brake pedal to the accelerator pedal when
moving the vehicle while the Idling Stop
System is active on a hilly road.
IDLING STOP SYSTEM DISPLAY
The status of the Idling Stop System can be
checked in the vehicle information display.

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.

8 Do-it-yourself
Maintenance precautions ................................................ 8-3
Engine compartment check locations .......................... 8-4VR30DDTT engine....................................................... 8-4
2.0L turbo gasoline engine........................................ 8-5
Engine cooling system (for VR30DDTT
engine models).................................................................... 8-6
Checking engine coolant level ................................. 8-7
Changing engine coolant............................................ 8-7
Engine cooling system (for 2.0L turbo gasoline
engine models).................................................................... 8-8
Checking engine coolant level................................... 8-8
Changing engine coolant............................................ 8-9
Intercooler cooling system (for VR30DDTT
engine models).................................................................... 8-9 Checking intercooler coolant level........................ 8-10
Changing intercooler coolant................................. 8-10
Engine oil.....................................................................\
...... 8-10 Checking engine oil level .......................................... 8-11
Changing engine oil and filter................................. 8-11
Automatic Transmission Fluid (ATF).......................... 8-13
Power steering fluid (models with hydraulic pump
electric power steering).................................................. 8-14
Brake fluid...................................................................\
....... 8-14
Window washer fluid...................................................... 8-15 Battery........................................................................\
........ 8-16
Main battery location.............................................. 8-16
Auxiliary battery location (for 2.0L turbo
gasoline engine models).......................................... 8-17
Checking battery fluid level................................... 8-17
Jump starting............................................................. 8-18
Variable voltage control system ................................. 8-19
Drive belts ........................................................................\
. 8-19
Spark plugs....................................................................... 8-20 Replacing spark plugs............................................. 8-20
Air cleaner........................................................................\
.. 8-21
Windshield wiper blades ............................................... 8-21 Cleaning....................................................................... 8-21
Replacing..................................................................... 8-22
Brakes..................................................................\
............... 8-22 Self-adjusting brakes............................................... 8-22
Brake pad wear warning........................................ 8-22
Fuses...................................................................\
................ 8-23 Engine compartment.............................................. 8-24
Passenger compartment ........................................ 8-25
Intelligent Key battery replacement........................... 8-26
Lights........................................................................\
......... 8-28 Headlights................................................................... 8-29
Exterior and interior lights..................................... 8-29

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

8-26Do-it-yourself
NOTE:
If the extended storage fuse switch mal-
functions or if the fuse is open, it is not
necessary to replace the switch. In this case,
remove the extended storage fuse switch
and replace it with a new fuse of the same
rating.
How to remove the extended storage fuse
switch:
1. To remove the extended storage fuseswitch, be sure the ignition switch is in
the OFF or LOCK position.
2. Be sure the headlight switch is in the OFF position.
3. Remove the fuse box cover.
4. Pinch the locking tabs
found on each
side of the storage fuse switch.
5. Pull the storage fuse switch straight out from the fuse box
.
CAUTION
Be careful not to allow children to
swallow the battery and removed parts.
JVM0317X
To replace the battery:
1. Release the lock knob at the back of theIntelligent Key and remove the mechan-
ical key.
2. Insert a flat-blade screwdriver wrapped with a cloth into the slit of the corner and
twist it to separate the upper part from
INTELLIGENT KEY BATTERY
REPLACEMENT

8-28Do-it-yourself
JVM0828X
1. Headlight (high-beam)
2. Headlight (low-beam)
3. Parking light, daytime running light
4. Map light
5. Rear personal light
6. Side turn signal light
7. Front turn signal light
8. Fog light
9. Front side marker light
10. Step light
11. Courtesy light
12. High-mounted stop light
13. Back-up light
14. Tail light
15. Rear turn signal light
16. Tail/stop light
17. Rear side marker light
18. License plate light
19. Trunk light
LIGHTS

HEADLIGHTS
If replacement is required, it is recommended
you visit an INFINITI retailer for this service.
Fog may temporarily form inside the lens of
the exterior lights in the rain or in a car wash.
A temperature difference between the inside
and the outside of the lens causes the fog.
This is not a malfunction. If large drops of
water collect inside the lens, it is recom-
mended you visit an INFINITI retailer for this
service.
EXTERIOR AND INTERIOR LIGHTS
ItemWattage (W)Bulb No.
Headlight* High/Low beams LED—
Front turn signal light* LED—
Front fog light* LED—
Parking light*/Daytime running light* LED—
Front side marker light* LED—
Side turn signal light* LED—
Rear combination light* back-up LED—
turn signal LED—
tail LED—
tail/stop LED—
side marker LED—
License plate light* LED—
Map light* LED—
Rear personal light 8—
Vanity mirror light* 1.8—
Step light 5—
Console box light* 2—
Inside door handle light* (if so equipped) LED—
Door trim light* (if so equipped) LED—
Front cup holder light* LED—
Footwell light* LED—
Trunk light 3.4—
Do-it-yourself8-29