check engine INFINITI QX30 2018 Repair Manual

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 1,000MAINTENANCE 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 filterReplace every 45,000 miles or 48 months
Fuel linesI* I* I*
Fuel filter See NOTE (3)
Engine coolant*Replace every 155,000 miles or 180 months
Engine oil R R R R R R
Engine oil filter R R R R R R
Spark plugsReplace 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
STANDARD MAINTENANCE
Maintenance and Schedules9-9

Abbreviations: I = Inspect and correct or replace as necessary, R = Replace
MAINTENANCE OPERATIONmiles x 1,000MAINTENANCE INTERVAL
Perform at number of miles, kilometers 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 filterReplace every 45,000 miles or 48 months
Fuel linesI* I* I*
Fuel filter See NOTE (3)
Engine coolant*Replace every 155,000 miles or 180 months
Engine oil R R R R R R
Engine oil filter R R R R R R
Spark plugsReplace 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
9-10Maintenance and Schedules

Aftermarket fuel additives
INFINITI does not recommend the use of any
aftermarket fuel additives (Example: fuel in-
jector cleaner, octane booster, intake valve
deposit removers, etc.) which are sold com-
mercially. Many of these additives intended
for gum, varnish or deposit removal may con-
tain active solvent or similar ingredients that
can be harmful to the fuel system and engine.
Octane rating tips
Using unleaded gasoline with an octane rat-
ing lower than recommended above can
cause persistent, heavy spark knock. (Spark
knock is a metallic rapping noise.) If severe,
this can lead to engine damage. If you detect
a persistent heavy spark knock even when
using gasoline of the stated octane rating, or
if you hear steady spark knock while holding
a steady speed on level roads, it is recom-
mended you have an INFINITI retailer cor-
rect the condition. Failure to correct the con-
dition is misuse of the vehicle, for which
INFINITI is not responsible.
Incorrect ignition timing will result in knock-
ing, after-run and/or overheating. This in turn
may cause excessive fuel consumption or
damage to the engine. If any of the above
symptoms are encountered, have your ve-
hicle checked. It is recommended you visit an
INFINITI retailer.However, now and then you may notice light
spark knock for a short time while accelerat-
ing or driving up hills. This is no cause for
concern, because you get the greatest fuel
benefit when there is light spark knock for a
short time under heavy engine load.
ENGINE OIL AND OIL FILTER
RECOMMENDATIONS
Selecting the correct oil
It is essential to choose the correct grade,
quality, and viscosity engine oil to ensure sat-
isfactory engine life and performance. For
additional information, refer to "Recom-
mended fluids/lubricants and capacities"
earlier in this section.
Select only engine oils that meet the MB229.5
specification and SAE viscosity standard. These
oils have the MB229.5 specification label on the
container. Oils which do not have the specified
quality label should not be used as they could
cause engine damage.
Oil additives
INFINITI does not recommend the use of oil
additives. The use of an oil additive is not
necessary when the proper oil type is used
and maintenance intervals are followed.
Oil which may contain foreign matter or has
been previously used should not be used.
Oil viscosity
The engine oil viscosity or thickness changes
with temperature. Because of this, it is impor-
tant that the engine oil viscosity be selected
based on the temperatures at which the vehicle
will be operated before the next oil change.
Choosing an oil viscosity other than that recom-
mended could cause serious engine damage.
Outside Temperature Range
Anticipated Before Next Oil Change
GASOLINE ENGINE OIL
JVT0428X
Technical information10-5

For Canada:
If you believe that your vehicle has a defect
which could cause a crash or could cause
injury or death, you should immediately in-
form Transport Canada in addition to notify-
ing INFINITI.
If Transport Canada receives complaints, it
may open an investigation, and if it finds that
a safety defect exists in a group of vehicles, it
may request that INFINITI conduct a recall
campaign. However, Transport Canada can-
not become involved in individual problems
between you, your retailer, or INFINITI.
You may contact Transport Canada’s Defect
Investigations and Recalls Division toll free
at 1-800-333- 0510. You may also report
safety defects online at:
https://wwwapps.tc.gc.ca/Saf-Sec- Sur/7/
PCDB-BDPP/Index.aspx.
Additional information concerning motor
vehicle safety may be obtained from Trans-
port Canada’s Road Safety Information
Center at 1-800-333- 0371 or online at
www.tc.gc.ca/roadsafety (English speakers)
or www.tc.gc.ca/securiteroutiere (French
speakers).
To notify INFINITI of any safety concerns
please contact our Consumer Information
Center toll free at 1-800- 361-4792.WARNING
A vehicle equipped with All-Wheel Drive
(AWD) should never be tested using a two
wheel dynamometer (such as the dyna-
mometers used by some states for emis-
sions testing), or similar equipment. Make
sure you inform test facility personnel that
your vehicle is equipped with AWD before
it is placed on a dynamometer. Using the
wrong test equipment may result in trans-
mission damage or unexpected vehicle
movement which could result in serious ve-
hicle damage or personal injury.
Due to legal requirements in some states and
Canadian Provinces, your vehicle may be re-
quired to be in what is called the “ready con-
dition” for an Inspection/Maintenance (I/M)
test of the emission control system.
The vehicle is set to the “ready condition”
when it is driven through certain driving pat-
terns. Usually, the “ready condition” can be
obtained by ordinary usage of the vehicle.
If a powertrain system component is repaired
or the battery is disconnected, the vehicle
may be reset to a “not ready condition”. Be-
fore taking the I/M test, check the vehicle’s
inspection/maintenance test readiness con-
dition. Place the ignition switch in the ON
position without starting the engine. If theMalfunction Indicator Light (MIL) comes on
steady for 20 seconds and then blinks for
10 seconds, the I/M test condition is “not
ready”. If the MIL does not blink after 20 sec-
onds, the I/M test condition is “ready”.
It is recommended you contact an INFINITI
retailer to set the “ready condition” or to pre-
pare the vehicle for testing.
READINESS FOR INSPECTION/
MAINTENANCE (I/M) TEST
10-18Technical information

11 Index
A
ABS (Anti-lock Braking System).......2-9
Warning light................2-9
Active sound enhancement.........5-69
Operation..................5-69
Adaptive Front lighting System.......2-67
Aids.......................5-62
Forward emergency braking system . .5-62
Hill Start Assist (HSA)..........5-95
Intelligent Parking Assist (IPA).....5-70
Air bags....................1-45
Front passenger air bag switch.....1-45
Overview...................0-2
Repair and replacement.........1-54
Supplemental Restraint System.....1-37
Warning light............1-53, 2-12
Air cleaner filter................8-13
Air conditioner................4-29
Heater and air conditioner........4-29
Refrigerant and lubricant........10-6
Servicing..................4-38
Specification label............10-11
Air fresheners..................7-4
Antenna....................4-39
Anti-theft alarm system...........2-60
Around View Monitor............4-11
Moving object detection (MOD). . . .4-24Settings...................4-20
Audible reminders..............2-14
Automatic transmission............8-7
Fluid (ATF)..................8-7
Operation..................5-18
B
Battery......................8-9
Caution label................8-9
Cold weather...............5-96
Jump-starting...............6-10
Replacement - Intelligent Key......8-20
Saver system................2-89
Vehicle battery...............8-9
Blind Spot Warning (BSW) system.....5-36
Booster seats.................1-34
Precautions.................1-34
Brakes.....................8-17
ABS (Anti-Lock Braking System). . . .5-91
Adjustment.................8-17
Fluid......................8-7
Forward emergency braking system . .5-62
Parking brake...............5-27
Precautions................5-90
System...................5-90
Warning light................2-9
Break-in schedule..............5-84Brightness...................2-71
Instrument panel..............2-71
C
Capacities and recommendations.....10-2
Coolant...................10-2
Fuel.....................10-2
Oil......................10-2
Refrigerant.................10-2
Card holder..................2-81
CB radio....................4-39
Changing....................8-4
Engine coolant...............8-4
Engine oil...................8-5
Engine oil filter...............8-6
Tires and wheels.............8-34
Checking.....................8-4
Coolant level.................8-4
Engine oil level...............8-5
Child restraints................1-19
Anchorage.................1-22
ISOFIX installation............1-23
Precautions.................1-19
Child safety..................1-17
Rear door locks...............3-7
Cleaning.....................7-3
Alloy wheels.................7-3

Chrome parts.................7-3
Exterior....................7-2
Glass......................7-3
Interior.....................7-4
Leather seat covers.............7-6
Removing spots...............7-3
Seat belts...................7-5
Underbody..................7-3
Washing....................7-2
Waxing.....................7-2
Clock.......................2-79
Adjusting time................2-79
Coat hooks...................2-83
Cockpit......................0-6
Overview................0-6, 2-2
Cold weather..................5-96
Battery....................5-96
Driving on snow or ice...........5-97
Engine coolant...............5-96
Precautions.................5-96
Special equipment.............5-97
Tire equipment...............5-96
Compartment.................2-89
Coolant.....................10-2
Capacities..................10-2
Changing engine coolant..........8-4
Checking coolant level...........8-4
Cold weather................5-96
Engine cooling system...........8-3
Temperature gauge.............2-6Corrosion protection..............7-7
Environmental factors............7-7
Cruise control.................5-46
Canceling.................
.5-48
Operation..................5-47
Cup holders...................2-82
D
Defroster....................2-64
Switch....................2-64
Dimensions...................10-8
Engine....................10-7
Tires.....................10-8
Display......................2-71
Brightness..................2-71
Vehicle information display........2-15
Warnings and indicators.........2-29
Doors.......................3-7
Lift gate....................3-7
Locking key..................3-5
Locks.....................3-4
Map pocket.................2-84
Drive belts....................8-12
Driving......................5-18
Automatic Transmission..........5-18
Cold weather................5-96
Idle Stop/Start System..........5-29
On snow or ice...............5-97
Precautions..................5-2
E
Emergency key..................3-2
Engine......................5-16
Before starting...............5-16
Changing engine coolant..........8-4
Changing engine oil.............8-5
Changing oil filter..............8-6
Checking coolant level...........8-4
Checking engine oil level..........8-5
Cold weather................5-96
Compartment.............0-9, 8-3
Cooling system................8-3
Data.....................10-7
Oil .......................8-5
Serial number...............10-10
Spark plugs.................8-12
Starting...................5-16
Event data recorders (EDR)........10-19
Exhaust gas...................5-2
Precautions..................5-2
Exterior......................7-2
Cleaning....................7-2
Lights....................8-23
Overview...................0-3
Exterior rear view mirrors..........3-18
11-2Index

Vanity mirror................3-18
Vanity mirror lights.............2-89
Moving object detection (MOD)......4-24
O
Oil........................10-2
Capacities and recommendations. . . .10-2
Changing engine oil.............8-5
Changing engine oil filter..........8-6
Checking engine oil level..........8-5
Overheating..................6-13
Engine....................6-13
Engine coolant temperature gauge. . . .2-6
Overview.....................0-6
Cockpit.................0-6, 2-2
Engine compartment.........0-9, 8-3
Exterior....................0-3
Interior.....................0-5
Seats, Seat belts, Supplemental restraint
system.....................0-2
P
Parcel shelf...................2-85
Installation..................2-86
Removal...................2-85
Parking.....................5-87
Brake.....................5-27
Parking sensor system...........5-76Sonar function...............5-76
Parking sensors................5-81
OFF switch.................5-81
Phone......................4-39
Power.......................3-6
Door lock switch...............3-6
Outlet....................2-79
Seat adjustment...............1-4
Steering...................5-89
Windows..................2-74
Precautions...................1-34
Booster seats................1-34
Brake.....................5-90
Child restraints...............1-19
Intelligent Parking Assist (IPA)......5-70
Maintenance.................8-2
Safety.....................4-2
Seat belt usage...............1-10
Starting and driving.............5-2
Supplemental Restraint System.....1-37
Tire Pressure Monitoring System
(TPMS)....................5-3
Pregnant women................1-12
Protection....................7-7
Corrosion...................7-7
Push-button ignition.............5-14
Push-starting..................6-12
R
Rear seats....................1-5
Folding.....................1-6
RearView monitor................4-3
Maintenance................4-11
Repairing....................8-25
Headlights..................8-25
Replacement..................1-54
Air bags...................1-54
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.................8-12
Tires and wheels..............8-34
Wiper blades................8-13
Roof.......................2-78
Glass.....................2-78
Sunshade operation............2-78
Roof Rack....................2-86
S
Safety......................1-17
Children...................1-17
Child safety rear door locks........3-7
Head restraints................1-7
Injured persons...............1-12
Index11-5