spark plugs replace INFINITI QX30 2018 Owners Manual

8 Do-it-yourself
Maintenance precautions.................8-2
Engine compartment check locations .........8-3
2.0L Gasoline engine ................ .8-3
Engine cooling system .................. .8-3
Checking engine coolant level ............8-4
Changing engine coolant ...............8-4
Engine oil .......................... .8-5
Checking engine oil level ...............8-5
Changing engine oil ................. .8-5
Changing engine oil filter ...............8-6
Automatic Transmission Fluid (ATF) ..........8-7
Brake fluid ......................... .8-7
Window washer fluid .................. .8-8
Battery ........................... .8-9
Accessing Vehicle battery ..............8-10
Maintenance free battery ..............8-10
Models with Idle Stop/Start System .......8-11
Battery replacement ................ .8-11
Reinitialisation procedure after battery
reconnection ..................... .8-12
Jump-starting .................... .8-12
Drive belt ......................... .8-12
Spark plugs ........................ .8-13
Air cleaner filter ..................... .8-13
Wiper blades ....................... .8-13Cleaning
........................ .8-13
Replacing front window wiper blades ......8-14
Replacing rear window wiper blade .......8-16
Brakes ........................... .8-17
Self-adjusting brakes ................ .8-17
Fuses ............................ .8-17
Before replacing a fuse ...............8-17
Engine compartment ................ .8-17
Passenger compartment ..............8-18
Intelligent Key battery replacement ........
.8-20
Checking

the battery ................ .8-20
Replacing the battery ............... .8-20
Lights ........................... .8-22
Exterior and interior lights ..............8-22
Replacement procedures ..............8-24
Wheels and tires ..................... .8-27
Tire Pressure ..................... .8-27
Tire inflation pressure ............... .8-29
Tire labeling ..................... .8-29
Types of tires ..................... .8-31
Tire chains ...................... .8-32
Tire wear and damage ............... .8-33
Tire rotation ..................... .8-34
Replacing wheels and tires .............8-34
Wheel balance .................... .8-35

Replace the spark plugs according to the
maintenance schedule shown in a separate
maintenance booklet.
If replacement is required, it is recommended
that you visit an INFINITI retailer.
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 re-
move the spark plugs. An incorrect
socket can cause damage to the spark
plugs. It is recommended that you visit an INFINITI
retailer if checking or replacement is required.
WARNING
•Operating the engine with the air
cleaner filter 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.
CLEANING
If the windshield or rear window is not clear
after using the window washer or if a wiper
blade chatters when running, wax or other
material may be on the blade or windshield.
Clean the outside of the windshield or rear
window with a washer solution or a mild
detergent. The windshield or rear window is
clean if beads do not form when rinsing with
clear water.
Clean the blade by wiping it with a cloth
soaked in a washer solution or a mild deter-
gent. Then rinse the blade with clear water. If
the windshield or rear window is still not clear
after cleaning the blades and using the wiper,
replace the blades.
CAUTION
Worn windshield wiper blades can damage
the windshield and impair driver vision.
SPARK PLUGS AIR CLEANER FILTERWIPER BLADES
Do-it-yourself8-13

For recommended fuel, lubricants, fluids,
grease, and refrigerant, refer to "Recom-
mended fluids/lubricants and capacities" in
the "10. Technical information" section.
EMISSION CONTROL SYSTEM
MAINTENANCE
Drive belts*:
Check engine drive belts for wear, fraying or
cracking and for proper tension. Replace any
damaged drive belts
Engine air filter*:
Replace at specified intervals. When driving
for prolonged periods in dusty conditions,
check/replace the filter more frequently.
Engine coolant*:
Replace coolant at the specified interval.
When adding or replacing coolant, be sure to
use only Genuine INFINITI Engine Coolant or
equivalent in its quality (BASF Glysantin®
G40®). (For additional information, refer to
"Engine cooling system" in the "9. Mainte-
nance and Schedules" sectionnanceand
SchedulesMaintenance and Schedules" sec-
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NOTE
Mixing any other type of coolant or the use
of non-distilled water may reduce the rec-
ommended service interval of the coolant.
Engine oil and oil filter:
Replace engine oil and oil filter at the speci-
fied intervals. For recommended oil grade
and viscosity refer to "Recommended fluids/
lubricants and capacities" in the "10. Techni-
cal information" section calinformationTech-
nical information" section information"
section.
Fuel filter:
Replace the fuel filter and drain the water at
the specified intervals.
Fuel lines*:
Check the fuel hoses, piping and connections
for leaks, looseness, or deterioration. Tighten
connections or replace parts as necessary.
Spark plugs:
Replace at specified intervals. Install new
plugs of the type as originally equipped.
CHASSIS AND BODY
MAINTENANCE
Brake lines and cables:
Visually inspect for proper installation. Check
for chafing, cracks, deterioration, and signs
of leaking. Replace any deteriorated or dam-
aged parts immediately.
Brake pads, rotors, drums, & linings:
Check for wear, deterioration and fluid leaks.
Replace any deteriorated or damaged parts
immediately.
Exhaust system:
Visually inspect the exhaust pipes, muffler
and hangers for leaks, cracks, deterioration,
and damage. Tighten connections or replace
parts as necessary.
In-cabin microfilter:
Replace at specified intervals. When driving
for prolonged periods in dusty conditions, re-
place the filter more frequently.
9-6Maintenance and Schedules

The following tables show the standard maintenance schedule. Depending upon weather and atmospheric conditions, varying road surfaces,
individual driving habits and vehicle usage, additional or more frequent maintenance may be required. After 120,000 miles (192,000 km)/144
months, continue maintenance at the same mileage/time intervals.
EMISSION CONTROL SYSTEM MAINTENANCE (FOR 2.0L TURBO GASOLINE ENGINE)
Abbreviations: I = Inspect and correct or replace as necessary, R = Replace
MAINTENANCE OPERATIONmiles x
1,000 MAINTENANCE INTERVAL
Perform at number of miles,
kilometers or months, whichever comes first. 51015202530354045505560
(km x
1,000) (8) (16) (24) (32) (40) (48) (56) (64) (72) (80) (88) (96)
months 6 12 18 24 30 36 42 48 54 60 66 72
Engine compartment See NOTE (1)
V-belt See NOTE
(2) I*
I*I*
Replace every 155,000 miles or 180 months
Air cleaner filter Replace every 45,000 miles or 48 months
Fuel lines I*I*I*
Fuel filter See NOTE
(3)
Engine coolant* Replace every 155,000 miles or 180 months
Engine oil RR RRRR
Engine oil filter RR RRRR
Spark plugs Replace every 45,000 miles or 48 months
STANDARD MAINTENANCE
9-10Maintenance and Schedules

Abbreviations: I = Inspect and correct or replace as necessary, R = Replace
MAINTENANCE OPERATIONmiles x
1,000 MAINTENANCE INTERVAL
Perform at number of miles, kilo- meters or months, whichever comes first. 65 70 75 80 85 90 95 100 105 110 115 120
(km x
1,000) (104) (112) (120) (128) (136) (144) (152) (160) (168) (176) (184) (192)
months 78 84 90 96 102 108 114 120 126 132 138 144
Engine compartment See NOTE (1)
V-belt See NOTE
(2) I*
I*I*
Replace every 155,000 miles or 180 months
Air cleaner filter Replace every 45,000 miles or 48 months
Fuel lines I*I*I*
Fuel filter See NOTE
(3)
Engine coolant* Replace every 155,000 miles or 180 months
Engine oil RR RRRR
Engine oil filter RR RRRR
Spark plugs Replace every 45,000 miles or 48 months
NOTE:
(1) All visible parts checked for leaks and damage.
(2) In visible area only.
(3) Maintenance-free item.
* Maintenance items and intervals with ”*” are recommended by INFINITI for reliable vehicle operation. The owner need not perform such
maintenance in order to maintain the emission warranty or manufacturer recall liability. Other maintenance items and intervals are required
9-12Maintenance and Schedules

Data .....................10-7
Oil .......................8-5
Serial number...............10-11
Spark plugs .................8-13
Starting ...................5-18
Event data recorders (EDR) ........10-20
Exhaust gas ...................5-4
Precautions ..................5-4
Exterior......................7-2 Cleaning ....................7-2
Lights ....................8-22
Overview ...................0-3
Exterior rear view mirrors ..........3-18
F
Filter.......................8-13
Air cleaner ..................8-13
Engine Oil ...................8-6
Flat tire ......................6-2
Floormats....................7-5
Fluids ......................10-2 Air conditioner ...............10-2
Automatic transmission fluid (ATF) ....8-7
Brake......................8-7
Coolant ....................8-3
Engine Oil ...................8-5
Recommendations and capacities ....10-2
Window washer ...............8-8 Foglights....................2-70
Bulbinformation..............8-22
Location ...................2-70
Forward emergency braking system ....5-63
Limitations..................5-67
Four-wheel drive ...............5-87
Freeing trapped vehicle ............6-15
Fuel .......................10-2 Capacities ..................10-2
Filler cap ...................3-16
Filler lid ....................3-16
Gauge .....................2-7
Fuel economy .................5-87
Fuel efficient driving tips ...........5-86
Fuses ......................8-17 Engine compartment ............8-17
Passenger compartment .........8-18
G
Gasoline......................2-7
Gauge .....................2-7
Gauges ......................2-6
Engine coolant temperature ........2-6
Fuel.......................2-7
Meters and gauges .............2-4
Speedometer .................2-5
Tachometer ..................2-6
Glass........................7-3 Cleaning ....................7-3 Glassroof....................2-76
Sunshade operation ............2-76
Glovebox....................2-79
H
Hazard ......................6-2 Warning flasher switch ...........6-2
Headlights ...................8-25
Bulb replacement ..............8-25
Replacement (bulb) ............8-24
Switch ....................2-64
Head restraints/Headrests ..........1-7
Adjustment ..................1-8
Installation ..................1-9
Removal....................1-8
Heatedseats..................2-72 Operation ..................2-72
Precautions.................2-72
Heater and air conditioner ..........4-43
Hill Start Assist (HSA) .............5-96
HomeLink® Universal Transceiver .....2-88
Ifyourvehicleisstolen........... 2-91
Operating .................. 2-91
Programming ................2-88
Troubleshooting ..............2-90
Hood .......................3-15
Closing....................3-15
Engine compartment .........0-9,8-3
Opening ...................3-15
Index11-3

Push-button ignition.............5-16
Push-starting ..................6-12
R
Rear seats....................1-5
Folding.....................1-6
RearView monitor ...............4-17
Maintenance ................4-25
Repairing ....................8-24
Headlights ..................8-24
Replacement ..................1-56
Air bags ...................1-56
Air cleaner filter ...............8-13
Engine coolant ................8-4
Engine oil ...................8-5
Engine oil filter ................8-6
Intelligent Key battery ...........8-20
Spark plugs .................8-13
Tires and wheels ..............8-34
Wiper blades ................8-13
Roof .......................2-76
Glass.....................2-76
Sunshade operation ............2-76
Roof Rack ...................2-84
S
Safety......................1-17
Children ...................1-17 Child safety rear door locks
........3-7
Head restraints ................1-7
Injuredpersons...............1-13
Precautions..................4-2
Pregnant women ..............1-12
Reporting safety defects ........10-18
Seat belts ................1-10,1-13
Adjustment .................1-16
Children-Infants..............1-18
Children-Larger..............1-18
Children - Small ...............1-18
Childsafety .................1-17
Cleaning ....................7-5
Maintenance ................1-16
Overview...................0-2
Precautions.................1-10
Warninglight................2-11
Warnings...................1-13
Seats .......................1-2
Adjustment ..................1-3
Adjustment (Manual) ............1-3
Boosterseats................1-35
Head restraints ................1-7
Heating....................2-72
Leather ....................7-6
Memory ...................3-21
Overview...................0-2
Rear ......................1-5
Rear seats - Folding .............1-6
Seat belts ..................1-10
Security system ................2-59 Servicing
.................... 4-52
Airconditioner ............... 4-52
Sonar function .................5-82
OFF switch ................. 5-82
Spark plugs ...................8-13
Information.................8-13
Replacement ................8-13
Speedometer ...................2-5
Starting .....................5-18
Before starting the engine ........5-18
Engine ....................5-18
Jump-starting ................6-10
Precautions..................5-4
Push-starting ................6-12
Steering.....................5-90 Power steering system ..........5-90
Steeringlock.................5-15
Steeringlock..................5-15
Steering wheel .................3-17
Adjustment .................3-17
Steering wheel controls ............4-3
Storage..................... 2-79
Luggage hooks ...............2-82
Luggage net ................. 2-83
Map pocket ................. 2-83
Sunshade ....................2-76
Operation ..................2-76
Sun visors ....................3-18
Supplemental Restraint System .......1-38
Overview ...................0-2
11-6Index