ignition NISSAN ALTIMA 2018 Owner´s Manual

1. Crankshaf t pulley
2. Drive belt automatic tensioner pul-ley
3. Generator pulley
4. Air 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
SPARK PLUGS
Do-it-yourself8-17

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.
NOTE:
The air cleaner filter should not be
cleaned and reused.
Replace the air cleaner filter according to
the maintenance log shown in the ”Mainte-
nance and schedules” section of this
manual.
To remove the air cleaner filter:∙ Unlatch the clips and move the air cleaner cover upward.
∙ Remove the air cleaner filter. ∙ Wipe the inside of the air cleaner filter
housing and the cover with a damp
cloth.
QR25DE
LDI2117
VQ35DE
LDI2118
AIR CLEANER
8-18Do-it-yourself

ENGINE COMPARTMENT
WARNING
Never use a fuse of a higher or lower
amperage rating than that specified on
the fuse box cover. This could damage
the electrical system or electronic con-
trol units or cause a fire.
If any electrical equipment does not come
on, check for an open fuse. 1. Be sure the ignition switch and the headlight switch are OFF.
2. Open the engine hood. 3. Remove the fuse box cover by pushing
the tab and lif ting the cover up.
4. Remove the fuse with the fuse puller. The fuse puller is located in the center
of the fuse block in the passenger
compartment.
5. If the fuse is open
A, 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 a NISSAN
dealer for this service.
Fusible links
If the electrical equipment does not oper-
ate and fuses are in good condition, check
the fusible links. If any of these fusible links
are melted, replace with only Genuine
NISSAN parts.
LDI2133LDI0456
8-22Do-it-yourself

PASSENGER COMPARTMENT
WARNING
Never use a fuse of higher or lower am-
perage 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 oper-
ate, check for an open fuse.
1. Be sure the ignition switch and the headlight switch are in the OFF posi-
tion.
2. Pull the fuse box cover to remove.
3. Remove the fuse with the fuse puller
A.
LDI2869LDI2827
Do-it-yourself8-23

Fuel containing MMT
MMT, or methylcyclopentadienyl manga-
nese tricarbonyl, is an octane boosting ad-
ditive. NISSAN does not recommend the
use of fuel containing MMT. Such fuel may
adversely affect vehicle performance, in-
cluding 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 de-
tails.
Af termarket fuel additives
NISSAN does not recommend the use of
any af termarket fuel additives (for ex-
ample, fuel injector cleaner, octane
booster, intake valve deposit removers,
etc.) which are sold commercially. Many of
these additives intended for gum, varnish
or deposit removal may contain active sol-
vents or similar ingredients that can be
harmful to the fuel system and engine.
Octane rating tips
Using unleaded gasoline with an octane
rating lower than recommended 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 heavyspark 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 that you have a NISSAN dealer
correct the condition. Failure to correct
the condition is misuse of the vehicle, for
which NISSAN is not responsible.
Incorrect ignition timing may result in
spark knock, af ter-run and/or overheating,
which may cause excessive fuel consump-
tion or engine damage. If any of the above
symptoms are encountered, have your ve-
hicle checked. It is recommended that you
visit a NISSAN dealer for servicing.
However, now and then you may notice
light spark knock for a short time while
accelerating or driving up hills. This is not
a cause for concern, because you get the
greatest fuel benefit when there is light
spark knock for a short time under heavy
engine load.
Technical and consumer information10-5

ENGINE
ModelQR25DE VQ35DE
Type Gasoline, 4-cycle, DOHCGasoline, 4-cycle, DOHC
Cylinder arrangement 4-cylinder in-line6-cylinder, V-block, Slanted at 60°
Bore x Stroke in (mm) 3.504 x 3.937 (89.0 x 100.0)3.760 x 3.205 (95.5 x 81.4)
Displacement cu in (cm
3)151.82 (2,488) 213.45 (3,498)
Firing order 1–3–4–21–2–3–4–5–6
Idle speed
No adjustment is necessary.
CVT (in “N” position)
Ignition timing (degree B.T.D.C. at idle
speed)
CO%atidle
Spark plug
FXE20HE-11CFXE22HR-11
Spark plug gap (Nominal) in (mm)0.043 (1.1) 0.043 (1.1)
Camshaf t operation Timing chainTiming chain
This spark ignition system complies with the Canadian standard ICES-002.
SPECIFICATIONS
10-8Technical and consumer information

Due to legal requirements in some states
and Canadian Provinces, your vehicle may
be required to be in what is called the
“ready condition” 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
patterns. Usually, the ready condition can
be obtained by ordinary usage of the ve-
hicle.
If a powertrain system component is re-
paired or the battery is disconnected, the
vehicle may be reset to a “not ready” condi-
tion. Before taking the I/M test, check the
vehicle’s inspection/maintenance test
readiness condition. 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 af ter 20 seconds, the I/M test condi-
tion is “ready”. It is recommended that you
visit a NISSAN dealer to set the “ready con-
dition” or to prepare the vehicle for testing.This vehicle is equipped with an EDR. The
main purpose of an EDR is to record, in
certain collision or near collision-like situa-
tions, such as an air bag deployment or
hitting a road obstacle, data that will assist
in understanding how a vehicle’s systems
performed. The EDR is designed to record
data related to vehicle dynamics and
safety systems for a short period of time,
typically 30 seconds or less. The EDR in this
vehicle is designed to record such data as:
∙ How various systems in your vehicle were operating;
∙ Whether or not the driver and passen- ger safety belts were buckled/fastened;
∙ How far (if at all) the driver was depress- ing the accelerator and/or brake pedal;
and,
∙ How fast the vehicle was traveling.
∙ Sounds are not recorded. These data can help provide a better un-
derstanding of the circumstances in which
collisions and injuries occur. NOTE: EDR
data are recorded by your vehicle only if a
nontrivial collision situation occurs; no data
are recorded by the EDR under normal driv-
ing conditions and no personal data (e.g.
name, gender, age and collision location)
are recorded. However, other parties, such
as law enforcement, could combine the
EDR data with the type of personally iden-
tif ying data routinely acquired during a col-
lision investigation.
To read data recorded by an EDR, special
equipment is required and access to the
vehicle or the EDR is needed. In addition to
the vehicle manufacturer and NISSAN
dealer, other parties, such as law enforce-
ment, that have the special equipment, can
read the information if they have access to
the vehicle or the EDR. EDR data will only be
accessed with the consent of the vehicle
owner or lessee or as otherwise required or
permitted by law.
READINESS FOR INSPECTION/
MAINTENANCE (I/M) TEST
EVENT DATA RECORDERS (EDR)
10-20Technical and consumer information

Engine oil...................8-7
Powersteeringfluid............8-11
Windshield-washer fluid .........8-13
F.M.V.S.S. certification label ..........10-11
Foglightswitch................2-40
Front air bag system
(See supplemental restraint system) . . . .1-51
Front and rear sonar system ........5-86
Front-door pocket ..............2-45
Front power seat adjustment ........1-4
Frontseats................... .1-2
Fuel Capacities and recommended
fuel/lubricants...............10-2
Fuel economy ...............5-78
Fuel-filler door and cap ..........3-26
Fuel-filler door lock opener lever ....3-26
Fuel gauge ..................2-6
Fueloctanerating.............10-5
Fuel recommendation ..........10-3
Loose fuel cap warning .........2-28
Fuelefficientdrivingtips...........5-77
Fuel-filler door .................3-26
Fuel gauge ....................2-6
Fuses .......................8-21
Fusiblelinks...................8-22
G
Garage door opener, HomeLink® Universal
Transceiver ............2-56,2-58,2-59
Gascap.....................3-26
Gauge Engine coolant temperature gauge . .2-5
Fuel gauge ..................2-6 Odometer
..................2-4
Speedometer ................2-4
Tachometer .................2-5
Trip odometer ................2-4
General maintenance .............9-2
Glovebox....................2-46
Gloveboxlock.................2-46
H
Hands-free phone system, Bluetooth® . .4-54
Hazard warning flasher switch ........6-2
Headlight and turn signal switch ......2-35
Headlightcontrolswitch...........2-35
Headlights ...................8-26
Headrestraints .................1-8
Heated seat switches .............2-41
Heated steering wheel switch .......2-42
Heater Heater and air conditioner
controls................4-13,4-21
Heater operation ..........4-14,4-22
Hill start assist system ............5-86
HomeLink® Universal
Transceiver ............2-56,2-58,2-59
Hood .......................3-23
Horn.......................2-40
I
Ignition switch Push-button ignition switch .......5-9
Immobilizer system ...........2-32,5-12
Important vehicle information label . . . .10-11In-cabinmicrofilter ..............8-19
Increasing fuel economy
...........5-78
Indicator NISSAN Intelligent Key® battery discharge
indicator...................5-11
Indicator lights and audible reminders
(See warning/indicator lights and audible
reminders) .................2-15,3-17
Inside automatic anti-glare mirror .....3-30
Instrument brightness control .......2-39
Instrument panel .............0-6,2-2
Instrument panel dimmer switch .....2-39
Intelligent

Cruise Control (ICC) .......5-43
Intelligent Forward Collision Warning
(I-FCW)......................5-65
Intelligent Key system Key operating range ............3-8
Key operation ................3-10
Mechanical key ...............3-3
Remote keyless entry operation ....3-13
Troubleshooting guide ..........3-18
Warning signals ..............3-18
Interiorlight...................2-54
Interiortrunklidrelease...........3-25
iPod®Player ..................4-44
ISOFIX child restraints .............1-25
J
Jumpstarting..............6-10,8-15
K
Key........................ .3-2
11-3