2012 INFINITI EX Owners Manual

8-16Maintenance and do-it-yourself
DI0137MA
Check the fluid level in each cell (Remove
the battery cover if it is necessary). It
should be between the UPPER LEVEL
*1and LOWER LEVEL*2lines.
If it is necessary to add fluid, add only
distilled water to bring the level to the
indicator in each filler opening. Do not
overfill.
SDI1480C
1. Remove the cell plugs*A.
2. Add distilled water up to the UPPER LEVEL
*1line.
If the side of the battery is not clear,
check the distilled water level by
looking directly above the cell; the
condition
*1indicates OK and the
condition
*2needs more to be added.
3. Tighten cell plugs
*A.
Vehicles operated in high temperatures or
under severe conditions require frequent
checks of the battery fluid level.
JUMP STARTINGGUID-2817327F-6E21-4AC8-B820-117364796C79

GUID-FC5633A2-FD59-4507-B12A-58F793B8DABB
CAUTION
.Do not ground accessories directly to the
battery terminal. Doing so will bypass
the variable voltage control system and
the vehicle battery may not charge
completely.
. Use electrical accessories with the en-
gine running to avoid discharging the
vehicle battery.
The variable voltage control system mea-
sures the amount of electrical discharge
from the battery and controls voltage
generated by the generator.
GUID-3686748E-2EEC-429B-BEFA-78191D702FA3
SDI2152
VQ35HR engine
1. Power steering fluid pump
2. Alternator
3. Crankshaft pulley
4. Air conditioner compressor
5. Drive belt auto-tensioner
WARNING
Be sure the ignition switch is in the OFF or
LOCK position before servicing drive belts.
The engine could rotate unexpectedly.
1. Visually inspect each belt for signs of
unusual wear, cuts, fraying or loosen- ess. If the belt is in poor condition or
loose, have it replaced or adjusted by
an INFINITI retailer.
2. Have the belts checked regularly for condition and tension in accordance
with the maintenance schedule in your
“INFINITI Service and Maintenance
Guide”.
Maintenance and do-it-yourself8-17
VARIABLE VOLTAGE CONTROL SYSTEM DRIVE BELTS

8-18Maintenance and do-it-yourself
GUID-AE6B98B2-820E-46ED-892B-D3D84FBE5412
WARNING
Be sure the engine and the ignition switch
are off and that the parking brake is
engaged securely.
CAUTION
Be sure to use the correct socket to remove
the spark plugs. An incorrect socket can
damage the spark plugs.
SDI2020
REPLACING SPARK PLUGSGUID-49D7E044-4B04-40E9-BA4E-CF0EA30A67B9

GUID-A762655D-D645-4C3F-90D2-925E81145437
SDI2033
Remove the retainers*1as illustrated and
pull out the filter element
*2.
The filter element should not be cleaned
and reused. Replace it according to the
maintenance intervals. See “INFINITI Ser-
vice and Maintenance Guide” for mainte-
nance intervals. When replacing the filter, wipe the inside of the air cleaner housing
and the cover with a damp cloth.
WARNING
.
Operating the engine with the air
cleaner removed can cause you or others
to be burned. The air cleaner not only
cleans the air, it stops 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.
Maintenance and do-it-yourself8-19
AIR CLEANER

8-20Maintenance and do-it-yourself
GUID-A37555B3-A7CF-470C-A82F-6EB00C4A167F
SDI2359
REPLACINGGUID-CC33F076-5352-485A-B942-6483BE320C2BCAUTION
.After wiper blade replacement, return
the wiper arm to its original position;
otherwise it may be damaged when the
hood is opened.
. Make sure the wiper blades contact the
glass; otherwise the arm may be da-
maged from wind pressure.
WINDSHIELD WIPER BLADES

SDI2362
If you wax the surface of the hood, be
careful not to let wax get into the washer
nozzle
*A. This may cause clogging or
improper windshield washer operation. If
wax gets into the nozzle, remove it with a
needle or small pin
*B. Be careful not to
damage the nozzle.
GUID-649120FF-FDF1-4DE9-947A-89118AE5CBB4
WARNING
See an INFINITI retailer for a brake system
check if the brake pedal height does not
return to normal.
BRAKE PAD WEAR WARNINGGUID-3F7FA7AA-7243-4983-92EC-7DB214A694D8

8-22Maintenance and do-it-yourself
SDI1479A
ENGINE COMPARTMENTGUID-2567A0EE-46EB-453B-A8E4-EC8A4F7728D6
CAUTION
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 cause a fire.
If any electrical equipment does not
operate, check for an open fuse.
Be sure the ignition switch is pushed to the
OFF or LOCK position and the headlight
switch is turned to OFF.1. Open the engine hood and remove the
battery cover.
2. Remove the fuse/fusible link holder
cover.
3. Remove the fuse with the fuse puller.
FUSES

SDI1754
4. If the fuse is open*A, replace it with a
new fuse
*B. Spare fuses are stored in
the passenger compartment fuse box.
5. If a new fuse also opens, have the electrical system checked and repaired
by an INFINITI retailer.
Fusible linksGUID-D68F7F2A-C051-4703-BF3D-2538DC1C2588
SDI2034
PASSENGER COMPARTMENTGUID-7BE21C6E-2FB4-4826-A46E-0409496E1464
CAUTION
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 cause a fire.
If any electrical equipment does not
operate, check for an open fuse.
1. Be sure the ignition switch is pushed tothe OFF or LOCK position and the
headlight switch is turned to OFF. 2. Open the fuse box lid.
3. Remove the fuse with the fuse puller
*A.
4. If the fuse is open, replace it with a new fuse.
5. If a new fuse also opens, have the electrical system checked and repaired
by an INFINITI retailer. Spare fuses are
stored in the fuse box.
Maintenance and do-it-yourself8-23