2019 INFINITI QX50 service

WARNING
∙ Use only new fluid from a sealed con-tainer. Old, inferior or contaminated fluid
may damage the brake system. The use of
improper fluids can damage the brake
system and affect the vehicle’s stopping
ability.
∙ Clean the filler cap before removing.
∙ Brake fluid is poisonous and should be stored carefully in marked containers out
of reach of children.
CAUTION
Do not spill the fluid on any painted sur-
faces. This will damage the paint. If fluid is
spilled, immediately wash the surface with
water.
Check the fluid level in the reservoir. If the
brake fluid is below the MIN line
B, the brake
warning light will illuminate. Add brake fluid
up to the MAX line
A. For additional infor-
mation on the recommended type of brake
fluid, refer to “Recommended
fluids/lubricants and capacities” in the “Tech-
nical and consumer information” section of
this manual.
If the brake fluid must be added frequently,
the brake system should be thoroughly
checked. It is recommended that you visit an
INFINITI retailer for this service.
For additional information on the location of
the brake fluid reservoir, refer to “Engine
compartment check locations” in this section.
WINDSHIELD-WASHER FLUID
RESERVOIR
Fill the windshield-washer fluid reservoir pe-
riodically. Add windshield-washer fluid when
the “Low Washer Fluid” warning message
shows on the vehicle information display.
To fill the windshield-washer fluid reservoir,
lift the cap off the reservoir and pour the
windshield-washer fluid into the reservoir
opening.
LDI3161LDI3162
BRAKE FLUID WINDSHIELD-WASHER FLUID
8-10Do-it-yourself

WARNING
∙ Do not expose the battery to flames, anelectrical spark or a cigarette. Hydrogen
gas generated by the battery is explo-
sive. Explosive gases can cause blindness
or injury. Do not allow battery fluid to
contact your skin, eyes, fabrics or painted
surfaces. Sulfuric acid can cause blind-
ness or injury. After touching a battery or
battery cap, do not touch or rub your
eyes. Thoroughly wash your hands. If the
acid contacts your eyes, skin or clothing,
immediately flush with water for at least
15 minutes and seek medical attention.
∙ Do not operate the vehicle if the fluid in the battery is low. Low battery fluid can
cause a higher load on the battery which
can generate heat, reduce battery life,
and in some cases lead to an explosion.
∙ When working on or near a battery, al- ways wear suitable eye protection and
remove all jewelry.
∙ Battery posts, terminals and related ac- cessories contain lead and lead com-
pounds. Wash hands after handling.
∙ Keep battery out of the reach of children.
∙ Do not tip the battery. Keep the vent caps tight and the battery level. NOTE:
Do not try to open the top of the battery.
This battery is not equipped with removable
vent caps.
Vehicles operated in high temperatures or
under severe conditions require frequent
checks of the battery fluid level.
JUMP STARTING
If jump starting is necessary, refer to “Jump
starting” in the “In case of emergency” section
of this manual. If the engine does not start by
jump starting, the battery may have to be
replaced. It is recommended that you visit an
INFINITI retailer for this service.
LDI2817
8-12Do-it-yourself

1. Visually inspect the belt for signs of un-usual wear, cuts, or fraying. If the belt is
in poor condition, have it replaced. It is
recommended that you visit an INFINITI
retailer for this service.
2. Have the belt checked regularly for con- dition.
REPLACING SPARK PLUGS
Iridium-tipped spark plugs
It is not necessary to replace iridium-tipped
Aspark plugs as frequently as conventional
type spark plugs because they last much lon-
ger. Follow the maintenance log shown in the
"Maintenance and schedules" section of this
manual. Do not service iridium-tipped spark
plugs by cleaning or regapping.
∙ Always replace spark plugs with recom-
mended or equivalent ones.
WARNING
Be sure the engine and 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.
If replacement is required, it is recommended
that you visit an INFINITI retailer for this
service.
SDI1895
SPARK PLUGS
8-14Do-it-yourself

WARNING
∙ Operating the engine with the air cleanerfilter off can cause you or others to be
burned. The air cleaner filter not only
cleans the intake air, it also stops the
flame if the engine backfires. If the air
cleaner is not installed and the engine
backfires, you could be burned. Never
drive with the air cleaner filter off. Be
cautious working on the engine when the
air cleaner is off. ∙ Never pour fuel into the throttle body or
attempt to start the engine with the air
cleaner removed. Doing so could result in
serious injury.
To remove the filter from the air cleaner, push
the tabs
Aand pull the cover upward.
The viscous paper type filter element should
not be cleaned and reused. Replace it accord-
ing to the maintenance log shown in the
“Maintenance and schedules” section of this
manual.
When replacing the air filter, wipe the inside
of the air cleaner housing and the cover with
a damp cloth.
NOTE:
After installing a new air cleaner filter, make
sure the air cleaner cover is seated in the
housing and latch the clips
A.
IN-CABIN MICROFILTER
The in-cabin microfilter restricts the entry of
airborne dust and pollen particles and re-
duces some objectionable outside odors. The
filter is located behind the glove box. For
additional information on change intervals,
refer to the "Maintenance and schedules"
section of this manual.
If replacement is required, it is recommended
that you visit an INFINITI retailer for this
service.
LDI3165
AIR CLEANER
Do-it-yourself8-15

CLEANING
If your windshield is not clear after using the
windshield-washer or if a wiper blade chat-
ters when running, wax or other material may
be on the blade or windshield.
Clean the outside of the windshield with a
washer solution or a mild detergent. Your
windshield is clean if beads do not form when
rinsing with clear water.
Clean each blade by wiping it with a cloth
soaked in a washer solution or a mild deter-
gent. Then rinse the blades with clear water.
If your windshield is still not clear after clean-
ing the blades and using the wiper, replace
the blades.
CAUTION
Worn windshield wiper blades can damage
the windshield and impair driver vision.
REPLACING
Replace the wiper blades if they are worn.
To replace the windshield wiper blades, fol-
low the procedure below:1. When ignition switch is ON or within 60 seconds after placing the ignition
switch from the ON to OFF position,
place the windshield wiper and washer
lever into the OFF position. 2. Rapidly lift the windshield wiper and
washer lever
Aupwards twice within
0.5 seconds. This action will cause the
wipers to automatically take the service
position.
LDI2476
WINDSHIELD WIPER BLADES
8-16Do-it-yourself

3. Once the wipers are in the service posi-tion, push the release tab
C.
4. Move the wiper blade down
Band re-
move.
5. Insert the new wiper blade onto the wiper arm until it clicks into place.
6. Rotate the wiper blade so the dimple is in the groove. 7. Finally, lift the windshield wiper and
washer lever to the mist position
Donce
and release. This action will cause the
wipers to resume the set position.
CAUTION
∙ After wiper blade replacement, return 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 arms may be dam-
aged from wind pressure. If you wax the surface of the hood, be careful
not to let wax get into the washer nozzle
F.
This may cause clogging or improper
windshield-washer operation. If wax gets
into the nozzle, remove it with a needle or
small pin
E.
LDI2785LDI2477
LDI3189
Do-it-yourself8-17

Rear window wiper blade
If checking or replacement is required, it is
recommended that you visit an INFINITI re-
tailer for this service.If the brakes do not operate properly, it is
recommended that you have the brakes
checked. It is recommended that you visit an
INFINITI retailer for this service.
Self-adjusting brakes
Your vehicle is equipped with self-adjusting
brakes.
The front and rear 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 nor-
mal. It is recommended that you visit an
INFINITI retailer for this service.
Brake pad wear indicators
The disc brake pads on your vehicle have
audible wear indicators. When a brake pad
requires replacement, a high pitched scraping
or screeching sound will be heard when the
vehicle is in motion. The noise will be heard
whether or not the brake pedal is depressed.
Have the brakes checked as soon as possible
if the wear indicator sound is heard.Under some driving or climate conditions, oc-
casional brake squeak, squeal or other noise
may be heard. Occasional brake noise during
light to moderate stops is normal and does
not affect the function or performance of the
brake system.
Proper brake inspection intervals should be
followed.
For additional information regard-
ing brake inspections, refer to the appropri-
ate maintenance schedule information in the
"Maintenance and schedules" section of this
manual.
BRAKES
8-18Do-it-yourself

5. If the fuse is openA, replace it with a
new fuse
B.
6. If a new fuse also opens, have the elec- trical system checked and repaired. It is
recommended that you visit an INFINITI
retailer for this service.
Fusible links
If the electrical equipment does not operate
and fuses are in good condition, check the
fusible links. If any of these fusible links are
melted, replace with only Genuine NISSAN
parts.
PASSENGER COMPARTMENT
WARNING
Never use a fuse of higher or lower amper-
age rating than that specified on the fuse
box cover. This could damage the electrical
system or electronic control units or cause a
fire.
If any electrical equipment does not operate,
check for an open fuse. NOTE:
The fuse box is located on the driver’s side of
the instrument panel.
1. Be sure the ignition switch and the head- light switch are OFF.
2. Remove the fuse box cover
Awith a
suitable tool. Use a cloth to avoid dam-
aging the trim.
3. Locate the fuse that needs to be re- placed.
4. Remove the fuse with the fuse puller
B.
LDI3200LDI3167
8-20Do-it-yourself