2019 NISSAN MAXIMA spark plugs

8 Do-it-yourself
Maintenance precautions.......................8-2
Engine compartment check locations ...........8-3
Engine cooling system ..........................8-4
Checking engine coolant level ................8-5
Changing engine coolant .....................8-5
Engine oil ........................................8-6
Checking engine oil level .....................8-6
Changing engine oil and oil filter ..............8-6
Continuously Variable Transmission (CVT)
fluid ............................................ 8-10
Power Steering Fluid (PSF) .......................8-11
Brake fluid ....................................... 8-11
Windshield-washer fluid ........................8-12
Windshield-washer fluid reservoir ............8-12
Battery......................................... 8-13
Jump starting ............................... 8-14
Drive belt ....................................... 8-15
Spark plugs .................................... 8-15
Replacing spark plugs ....................... 8-15
Air cleaner ...................................... 8-16
In-cabin microfilter .......................... 8-16Windshield wiper blades
........................8-17
Cleaning .................................... 8-17
Replacing ................................... 8-17
Brakes.......................................... 8-18
Fuses ........................................... 8-19
Engine compartment ....................... 8-19
Passenger compartment ....................8-20
Battery replacement ........................... 8-21
NISSAN Intelligent Key® ......................8-22
Lights .......................................... 8-23
Headlights ................................... 8-23
Front park/turn signal/side marker
light ......................................... 8-23
Fog lights (if so equipped) ...................8-23
Exterior and interior lights ...................8-24
Wheels and tires ................................ 8-26
Tire pressure ................................ 8-26
Tire labeling ................................. 8-30
T ypes

of tires ................................ 8-33
Tire chains .................................. 8-34
Changing wheels and tires ..................8-34

1. Crankshaf t pulley
2. Drive belt automatic tensioner pul-ley
3. Generator pulley
4. Air conditioner compressor pulley
WARNING
Be sure the ignition switch is placed in
the OFF or LOCK position before servic-
ing drive belt. The engine could rotate
unexpectedly. 1. Visually inspect the belt for signs of un-
usual wear, cuts, fraying or looseness. If
the belt is in poor condition or is loose,
have it replaced or adjusted. It is recom-
mended that you visit a NISSAN dealer
for this service.
2. Have the belt checked regularly for condition and tension in accordance
with the maintenance schedule found
in the “Maintenance and schedules”
section of this manual.
REPLACING SPARK PLUGS
Iridium-tipped spark plugs
It is not necessary to replace iridium-
tipped
Aspark plugs as frequently as con-
ventional type spark plugs because they
last much longer. Follow the maintenance
log shown in the “Maintenance and sched-
ules” section of this manual. Do not service
iridium-tipped spark plugs by cleaning or
regapping.
∙ Always replace spark plugs with rec-
ommended or equivalent ones.
VQ35DE engine
LDI2131SDI1895
DRIVE BELT SPARK PLUGS
Do-it-yourself8-15

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 damage the spark plugs.
If replacement is required, it is recom-
mended that you visit a NISSAN dealer for
this service.
The air cleaner filter should not be cleaned
and reused. Replace it according to the
maintenance log shown in the “Mainte-
nance and schedules” section of this
manual. When replacing the filter, wipe the
inside of the air cleaner filter housing and
the cover with a damp cloth.
To remove the air cleaner filter:∙ Unlatch the clips
Aand move the air
cleaner cover upward.
∙ Remove the air cleaner filter.
∙ Wipe the inside of the air cleaner filter housing and cover with a damp cloth.
WARNING
∙ Operating the engine with the aircleaner removed can cause you or
others to be burned. The air cleaner
not only cleans the air, it stops the
flame if the engine backfires. If it isn’t
there, and the engine backfires, you
could be burned. Do not drive with the
air cleaner removed, and be careful
when working on the engine with the
air cleaner removed.
∙ 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.
IN-CABIN MICROFILTER
The in-cabin microfilter restricts the entry
of airborne dust and pollen particles and
reduces some objectionable outside
odors. The filter is located behind the glove
box. For additional information, refer to the
“Maintenance and schedules” section of
this manual for change intervals.
If replacement is required, it is recom-
mended that you visit a NISSAN dealer for
this service.
LDI2756
AIR CLEANER
8-16Do-it-yourself

NOTE:
NISSAN does not advocate the use of
non-OEM approved af termarket flush-
ing systems and strongly advises
against performing these services on a
NISSAN product. Many of the af termar-
ket flushing systems use non-OEM ap-
proved chemicals or solvents, the use of
which has not been validated by NISSAN.
For recommended fuel, lubricants, fluids,
grease, and refrigerant, refer to “Recom-
mended fluids/lubricants and capaci-
ties” in the “Technical and consumer in-
formation” section of this manual.
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 inter-
vals. 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 replac-
ing coolant, be sure to use only Genuine
NISSAN Long Life Antifreeze/Coolant (blue)
or equivalent with the proper mixture. (For
additional information on the proper mix-
ture for your area, refer to “Engine cooling
system” in the “Do-it-yourself ” section of
this manual.)
NOTE: Mixing any other type of coolant or
the use of non-distilled water may reduce
the recommended service interval of the
coolant.
Engine oil and oil filter: Replace engine oil
and oil filter at the specified intervals. For
recommended oil grade and viscosity refer
to “Recommended fluids/lubricants and
capacities” in the “Technical and consumer
information” section of this manual.
Fuel lines*: Check the fuel hoses, piping
and connections for leaks, looseness, or
deterioration. Tighten connections or re-
place parts as necessary.
Spark plugs: Replace at specified intervals.
Install new plugs of the same type as origi-
nally 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 damaged
parts immediately.
Brake pads and rotors: Check for wear,
deterioration and fluid leaks. Replace any
deteriorated or damaged parts immedi-
ately.
Exhaust system: Visually inspect the ex-
haust 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 peri-
ods in dusty conditions, replace the filter
more frequently.
Steering gear and linkage, axle and sus-
pension parts, drive shaf t boots: Check
for damage, looseness, and leakage of oil
or grease. Under severe driving conditions,
inspect 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 re-
quired.Af ter 120,000 miles
(192,000 km)/144 months, continue
maintenance at the same mileage/time
interval.
EMISSION CONTROL SYSTEM MAINTENANCE
Abbreviations: I = Inspect and correct or replace as necessary, R = Replace
MAINTENANCE OPERATION
Perform at number of miles, kilometers or months, whichever comes first. miles x 1,000
(km x 1,000) Months MAINTENANCE INTERVAL
5
(8) 6 10
(16) 12 15
(24) 18 20
(32) 24 25
(40) 30 30
(48) 36 35
(56) 42 40
(64) 48 45
(72) 54 50
(80) 60 55
(88) 66 60
(96) 72
Drive belts See NOTE (1) I*I*I*
Air cleaner filter See NOTE (2) RR
EVAP vapor lines I*I*I*
Fuel lines I*I*I*
Fuel filter See NOTE (3)
Engine coolant* See NOTE (4)(5)
Engine oil RRRRRRRRRRRR
Engine oil filter RRRRRRRRRRRR
Spark plugs See NOTE (6)Replace every 105,000 miles (168,000 km)
Intake and exhaust valve clearances* See NOTE (7)
STANDARD MAINTENANCE
9-8Maintenance and schedules

MAINTENANCE OPERATION
Perform at number of miles, kilometers or months, whichever comes first. miles x 1,000
(km x 1,000) Months MAINTENANCE INTERVAL
65
(104) 78 70
(112) 84 75
(120) 90 80
(128) 96 85
(136) 102 90
(144) 108 95
(152) 114 100
(160) 120 105
(168) 126 110
(176) 132 115
(184) 138 120
(192) 144
Drive belts See NOTE (1)I*I*I*I*I*I*
Air cleaner filter See NOTE (2) RR
EVAP vapor lines I*I*I*
Fuel lines I*I*I*
Fuel filter See NOTE (3)
Engine coolant* See NOTE (4)(5)
Engine oil RRRRRRRRRRRR
Engine oil filter RRRRRRRRRRRR
Spark plugs See NOTE (6)Replace every 105,000 miles (168,000 km)
Intake and exhaust valve clearances* See NOTE (7)
NOTE:
(1) Af ter 40,000 miles (64,000 km) or 48 months, inspect every 10,000 miles (16,000 km) or 12 months. Replace the drive belts if
found damaged.
(2) If operating mainly in dusty conditions, more frequent maintenance may be required.
(3) Periodic maintenance is not required.
(4) First replacement interval is 105,000 miles (168,000 km) or 84 months. Af ter first replacement, replace every 75,000 miles
(120,000 km) or 60 months.
(5) Use only Genuine NISSAN Long Life Antifreeze/Coolant (blue) or equivalent with proper mixture ratio of 50% antifreeze and 50%
demineralized or distilled water. Mixing any other type of coolant or the use of non-distilled water may reduce the life expectancy
of the factory fill coolant.
(6) Replace spark plug when the plug gap exceeds 0.053 in (1.35 mm) even if within specified periodic replacement mileage.
(7) Periodic maintenance is not required. However, if valve noise increased, inspect valve clearance.
* Maintenance items and intervals with “*” are recommended by NISSAN 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.
Maintenance and schedules9-9

Largerchildren...............1-21
Precautions on seat belt usage .....1-11
Pregnant women ..............1-14
Seat belt extenders ............1-19
Seat belt maintenance ..........1-19
Seatbelts................1-11, 7-8
Shoulder belt height adjustment . . . .1-18
Three-pointtypewithretractor.....1-15
Seat belt extenders ..............1-19
Seatbeltwarninglight.........1-14, 2-14
Seats Adjustment ..................1-2
Armrests .................. .1-7
Automatic drive
positioner ........3-33,3-34,3-35,3-36
Frontseats..................1-2
Heatedseats................2-58
Rearseat...................1-5
Security indicator light ............2-16
Security system (NISSAN Vehicle Immobilizer
System), engine start ..........2-45,5-14
Security systems Vehicle security system .........2-44
Self-adjustingbrakes.............8-18
Service manual order form .........10-20
Servicing air conditioner ...........4-33
Shif ting Continuously Variable Transmission
(CVT) .....................5-18
Shoulder belt height adjustment ......1-18
Spark plug replacement ...........8-15
Spark plugs ...................8-15
Specifications .................10-8
Speedometer ................2-4,2-5
Speedometer and odometer ........2-4
Spotlights(Seemaplight)..........2-76 SRS warning label
...............1-64
Stability control ................5-130
Standard maintenance ............9-8
Starting Before starting the engine ........5-14
Jumpstarting.............6-9,8-14
Precautions when starting and
driving.....................5-4
Push starting ................6-11
Starting the engine ............5-15
Starting the engine ..............5-15
Steering Heated steering wheel ..........2-60
Powersteeringfluid............8-11
Powersteeringsystem.........5-127
Steering wheel .................3-27
Stoplight....................8-24
Storage.....................2-65
Storagetray ..................2-66
Sunglasses case ................2-67
Sunglasses holder ...............2-67
Sunroof ...................2-72,7-6
Sunvisors....................3-29
Supplemental air bag warning
light.....................1-64, 2-14
Supplemental front impact air bag
system ..................... .1-51
Supplemental restraint system Information and warning labels . . . .1-64
Pr ec

autions on supplemental restraint
system ....................1-44
Supplemental restraint system
(Supplemental air bag system) .......1-44
Switch Autolightswitch..............2-50
Automaticpowerwindowswitch....2-71 Foglightswitch..............2-55
Hazard warning flasher switch
......6-2
Headlight and turn signal switch ....2-50
Headlightcontrolswitch.........2-50
Instrument brightness control .....2-54
Power door lock switch ..........3-6
Rear window and outside mirror
defrosterswitch..............2-49
Turn signal switch .............2-55
T
Tachometer ...................2-6
Temperature gauge Engine coolant temperature gauge . .2-6
Thef t (NISSAN Vehicle Immobilizer System),
engine start ...............2-45,5-14
Three-waycatalyst...............5-5
Tire Flattire..................6-3,6-4
Spare tire ................6-5,8-37
Tire and Loading Information label . .10-12
Tire chains .................8-34
Tire pressure ................8-26
Tirerotation ................8-34
Types of tires ................8-33
Uniform tire quality grading .......10-17
Wheels and tires ..............8-26
Wheel/tire size ...............10-9
Tire pressure Low tire pressure warning light .....2-11
Tire Pressure Monitoring System (TPMS) . .5-5
Towing 4-wheel drive models ...........6-13
Flattowing.................10-16
11-6