check engine INFINITI QX30 2018 Repair Manual

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-
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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

Propeller shaft(s):
Check for damage, looseness, and grease
leakage. (4WD/AWD).
Steering gear and linkage, axle and suspen-
sion parts, drive shaft boots:
Check for damage, looseness, and leakage of
oil or grease. Under severe driving conditions,
inspect more frequently
Tire rotation:
Tires should be rotated every 5,000 miles
(8,000 km) according to the instructions un-
der "Tire rotation*" earlier in this section.
When rotating tires, check for damage and
uneven wear. Replace if necessary.
Transmission fluid/oil, differential oil,
transfer case oil:
Visually inspect for signs of leakage at speci-
fied intervals.To ensure smooth, trouble-free, safe and
economical driving, INFINITI provides two
maintenance schedules that may be used,
depending upon the conditions in which you
usually drive. These schedules contain both
distance and time intervals, up to 120,000
miles (192,000 km)/144 months. For most
people, the odometer reading will indicate
when service is needed. However, if you drive
very little, your vehicle should be serviced at
the regular time intervals shown in the sched-
ule.
After 120,000 miles (192,000 km)/144
months, continue maintenance at the same
mileage/time intervals.
ADDITIONAL MAINTENANCE
ITEMS FOR SEVERE OPERATING
SYSTEMS
Additional maintenance items for severe op-
erating conditions; should be performed on
vehicles that are driven under especially de-
manding conditions. Additional maintenance
items should be performed if you primarily
operate your vehicle under the following con-
ditions:
•Repeated short trips of less than 5 miles in
normal temperatures or less than 10 miles
in freezing temperatures.
•Stop-and-go traffic in hot weather or low
speed driving for long distances.
•Driving in dusty conditions or on rough,
muddy or salt-spread roads.
•Towing a trailer, or using a camper or car-
top carrier.
OIL CHANGE MONITOR
This vehicle is equipped with oil change moni-
tor. It calculates engine oil and filter change
interval base on driving conditions. Driving in
severe conditions will shorten the engine oil
and filter change interval. When the Engine
Oil – Service Due Now warning appears in
the vehicle information display, the engine oil
and filter need to be replaced.
NOTE
For vehicles operated in Canada, both stan-
dard and severe maintenance items should
be performed at every interval.
MAINTENANCE SERVICE
MESSAGES
The maintenance service interval display in-
forms you of the next service due date.
NOTE
The maintenance service interval display
does not show any information on the engine
oil level.
MAINTENANCE SCHEDULES
Maintenance and Schedules9-7

•For frequent operation in mountainous
terrain or on poor road surfaces
•If the engine is often left idling for long
periods
In these or similar operating conditions, have,
for example, the air filter, engine oil and oil
filter changed more frequently. The tires must
be checked more frequently if the vehicle is
operated under increased loads. Further in-
formation can be obtained at an INFINITI
retailer.
Maintenance and Schedules9-9

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

Fuel containing MMT
MMT, or methylcyclopentadienyl manganese
tricarbonyl, is an octane boosting additive.
INFINITI does not recommend the use of fuel
containing MMT. Such fuel may adversely
affect vehicle performance, including the
emissions control system. Note that while
some fuel pumps label MMT content, not all
do, so you may have to consult your gasoline
retailer for more details.
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 en-
gine 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
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 ve-
hicle safety may be obtained from Transport
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 the Malfunction 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 seconds,
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
Technical information10-19

Checking.....................8-4
Coolant level .................8-4
Engine oil level ................8-5
Child restraints .................1-19
Anchorage ..................1-23
ISOFIX installation .............1-24
Precautions .................1-20
Childsafety...................1-17 Rear door locks ................3-7
Cleaning ......................7-3
Alloy wheels ..................7-3
Chromeparts.................7-3
Exterior ....................7-2
Glass......................7-3
Interior.....................7-4
Leatherseatcovers.............7-6
Removing spots ...............7-3
Seat belts ...................7-5
Underbody ..................7-3
Washing ....................7-2
Waxing .....................7-2
Clock.......................2-77 Adjusting time ................2-77
Coat hooks ...................2-81
Cockpit......................0-6 Overview ................0-6,2-2
Cold weather ..................5-97
Battery....................5-97
Drivingonsnoworice...........5-98
Engine coolant ...............5-97
Precautions .................5-97 Special equipment
.............5-98
Tire equipment ...............5-97
Compact Disc (CD) ..............4-71
Player ................4-71,4-127
Compartment .................2-87
Connecting ...................4-90
Bluetooth® device .............4-90
Bluetooth® Hands-Free Phone .....4-88
Coolant .....................10-2
Capacities ..................10-2
Changing engine coolant ..........8-4
Checking coolant level ...........8-4
Cold weather ................5-97
Engine cooling system ...........8-3
Temperature gauge .............2-6
Corrosionprotection..............7-7 Environmental factors ............7-7
Cruisecontrol .................5-46 Canceling ..................5-48
Operation ..................5-47
Cupholders ..................2-80
Customer assistance ............4-124
D
Defroster....................2-63
Switch ....................2-63
Dimensions...................10-9 Engine ....................10-7
Tires.....................10-8 Display .....................
2-70
Brightness.................. 2-70
Vehicle information display ........2-15
Warningsandindicators ......... 2-29
Doors .......................3-7
Liftgate....................3-7
Locking key ..................3-5
Locks .....................3-4
Map pocket ................. 2-83
Drive belts ....................8-12
Driving ......................5-20
Automatic Transmission .........5-20
Coldweather................5-97
Idle Stop/Start System ..........5-29
Onsnoworice...............5-98
Precautions..................5-4
E
Emergency key ..................3-2
Engine ......................5-18
Before starting ............... 5-18
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
Coldweather................5-97
Compartment .............0-9,8-3
Coolingsystem................8-3
11-2Index

M
Maintenance...................9-2
General maintenance .........9-2,9-5
Log......................9-15
Precautions ..................8-2
Requirements .................9-2
Schedules ...................9-7
Seat belts ..................1-16
Standard maintenance ..........9-10
Maplights ...................2-86
Meters and gauges ...............2-4
Engine coolant temperature ........2-6
Fuel.......................2-7
Overview ...................0-8
Speedometer .................2-5
Tachometer ..................2-6
Mirrors .....................3-18
Anti-glare rear view mirror ........3-18
Exterior rear view mirrors .........3-18
Interior rear view mirrors .........3-18
Vanity mirror ................3-18
Vanity mirror lights .............2-87
Mobile Apps .................4-104
Monitorsystem................4-135 Troubleshooting .............4-135
Moving object detection (MOD) ......4-38
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
Parcelshelf...................2-84
Installation .................2-84
Removal ...................2-84
Parking.....................5-88 Brake.....................5-27
Parking sensor system ...........5-76
Sonar function ...............5-76
Parkingsensors................5-82 OFF switch .................5-82 Phone
......................4-88
Duringacall.................4-89
Favorites ...................4-97
Makingacall................4-88
Phonebook ................. 4-97
Receiving a call ...............4-89
Selection...................4-88
Settings................... 4-94
Power .......................3-6
Door lock switch ...............3-6
Outlet .................... 2-78
Seat adjustment ...............1-3
Steering...................5-90
Windows ................... 2-73
Precautions ...................4-53
Audio .....................4-53
Boosterseats................1-35
Brake.....................5-91
Childrestraints...............1-20
Intelligent Parking Assist (IPA) ......5-71
Maintenance .................8-2
Safety.....................4-2
Seat belt usage ...............1-10
Starting and driving .............5-4
Supplemental Restraint System .....1-38
Tire Pressure Monitoring System
(TPMS) .....................5-5
Pregnant women ................1-12
Protection ....................7-7 Corrosion...................7-7
Index11-5