2012 INFINITI G37 Owners Manual

Black plate (424,1)
[ Edit: 2012/ 1/ 17 Model: V36-D ]8-18 Maintenance 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
* 1
and LOWER LEVEL
* 2
lines.
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
* 1
line.
If the side of the battery is not clear,
check the distilled water level by
looking directly above the cell; the
condition
* 1
indicates OK and the
conditions
* 2
needs 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 STARTING GUID-6645B036-2286-48B9-B8ED-5E16B522CC2D
If jump starting is necessary, see “ Jump
starting ” (P.6-8). If the engine does not
start by jump starting, the battery may
have to be replaced. Contact an INFINITI
retailer.

Black plate (425,1)
[ Edit: 2012/ 1/ 17 Model: V36-D ]GUID-943BC148-9A3A-474D-8113-30A996E2E73B
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-2598C543-2A3B-4E05-90F6-3739930B5F0C
SDI2117
VQ25HR engine
1. Power steering fluid pump
2. Alternator
3. Crankshaft pulley
4. Air conditioner compressor
! : Tension checking points SDI2119
VQ37VHR 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-
Maintenance and do-it-yourself
8-19VARIABLE VOLTAGE CONTROL SYSTEM DRIVE BELTS

Black plate (426,1)
[ Edit: 2012/ 1/ 17 Model: V36-D ]8-20 Maintenance and do-it-yourselfess. 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 ” . GUID-B889B2DB-0702-4E25-998D-9EFCEB6380ED
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 PLUGS GUID-89AEBA13-D3D8-4D70-90D6-4674BC5CE9C3
If replacement is required, see an INFINITI
retailer for servicing.
Iridium-tipped spark plugs GUID-4C8CEFDE-424F-4945-8A13-7DFAE22BFEE0
It is not necessary to replace the iridium-
tipped spark plugs as frequently as the
conventional type spark plugs since they
will last much longer. Follow the main-
tenance schedule in “ INFINITI Service and
Maintenance Guide ” , but do not reuse
them by cleaning or regapping.SPARK PLUGS

Black plate (427,1)
[ Edit: 2012/ 1/ 17 Model: V36-D ]Always replace spark plugs with recom-
mended or equivalent ones. GUID-FC3BF8A1-4ABE-43E9-86D6-8E1A682A1F74
SDI2033
Remove the retainers
* 1
as 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-yourself
8-21AIR CLEANER

Black plate (428,1)
[ Edit: 2012/ 1/ 17 Model: V36-D ]8-22 Maintenance and do-it-yourself GUID-A955C9CB-68EE-4F40-BDE3-B34F06DBBB5F
CLEANING GUID-6C23CE69-2F5F-4308-B251-F9AFF7FCD33D
If your windshield is not clear after using
the windshield washer or if a wiper blade
chatters when running, wax or other
material may be on the blade or wind-
shield.
Clean the outside of the windshield with a
washer solution or a mild detergent. Your
windshield is clean if beads do not form
when rinsing with clear water.
Clean each blade by wiping it with a cloth
soaked in a washer solution or a mild
detergent. Then rinse the blade with clear
water. If your windshield is still not clear
after cleaning the blades and using the
wiper, replace the blades.
Worn windshield wiper blades can damage
the windshield and impair driver vision. SDI2048
REPLACING GUID-A30ECE65-328D-496B-A5F2-872EA27D63AA
Replace the wiper blades if they are worn.
1. Pull the wiper arm.
2. Push the release tab
* A
, and then
move the wiper blade down the wiper
arm
* 1
while pushing the release tab
to remove.
3. Insert the new wiper blade onto the
wiper arm until a click sounds.
4. Rotate the wiper blade so the dimple is
in the groove. CAUTION . 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

Black plate (429,1)
[ Edit: 2012/ 1/ 17 Model: V36-D ]SDI2362
Be careful not to clog the washer nozzle
* A
. This may cause improper windshield
washer operation. If the nozzle is clogged,
remove any objects with a needle or small
pin
* B
. Be careful not to damage the
nozzle. GUID-32FB5E6D-5B48-42A8-9F60-83E657B04471
If the brakes do not operate properly, have
the brakes checked by an INFINITI retailer.
SELF-ADJUSTING BRAKES GUID-2D98160D-8918-4BF3-999B-F13E2922E177
Your vehicle is equipped with self-adjust-
ing brakes.
The disc-type brakes self-adjust every time
the brake pedal is applied.
WARNING See an INFINITI retailer for a brake system
check if the brake pedal height does not
return to normal.
BRAKE PAD WEAR WARNING GUID-0D7DECB1-F0F3-4C66-A768-32FE17341FFF
The disc brake pads have audible wear
warnings. When a brake pad requires
replacement, it will make a high pitched
scraping sound when the vehicle is in
motion. This scraping sound will first occur
only when the brake pedal is depressed.
After more wear of the brake pad, the
sound will always be heard even if the
brake pedal is not depressed. Have the
brakes checked as soon as possible if the
wear warning sound is heard.
Under some driving or climate conditions, occasional brake squeak, squeal or other
noise may be heard. Occasional brake
noise during light to moderate stops is
normal and does not affect the function or
performance of the brake system.
Proper brake inspection intervals should
be followed. For additional information,
see the maintenance log section of your
“ INFINITI Service and Maintenance Guide ”
for maintenance intervals.
Maintenance and do-it-yourself
8-23BRAKES

Black plate (430,1)
[ Edit: 2012/ 1/ 17 Model: V36-D ]8-24 Maintenance and do-it-yourself GUID-41D7E39E-6F5A-404E-A0B5-F23908CDD33C
SDI1479A
ENGINE COMPARTMENT GUID-1BD473A4-2C19-4D87-ADC3-1791751AF8EF
CAUTIONNever 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 to
the OFF or LOCK position and the
headlight switch is turned to OFF. 2. Open the engine hood and remove the
cover on the battery and the fuse/
fusible link holder.
3. Remove the fuse/fusible link holder
cover.
4. Remove the fuse with the fuse puller.
SDI1754
5. If the fuse is open
* A
, replace it with a
new fuse
* B
. Spare fuses are stored in
the passenger compartment fuse box.
6. If a new fuse also opens, have the
electrical system checked and repaired
by an INFINITI retailer.
Fusible links GUID-E9133FFB-99A7-4084-8BC3-32BBC0B20EAC
If any electrical equipment does not
operate and fuses are in good condition,
check the fusible links. If any of these
fusible links are melted, replace only with
genuine INFINITI parts.FUSES

Black plate (431,1)
[ Edit: 2012/ 1/ 17 Model: V36-D ] SDI2034
PASSENGER COMPARTMENT GUID-B150D9E0-F345-4BB5-BF72-57CEBE3509C0
CAUTIONNever 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 to
the 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. SDI2704
Extended storage switch (if
equipped) GUID-686D0C65-BB54-46EA-AAE5-01212C2311DD
To reduce battery drain, the extended
storage switch comes from the factory
switched off. Prior to delivery of your
vehicle, the switch is pushed in (switched
on) and should always remain on.
If any electrical equipment does not
operate, remove the extended storage
switch and check for an open fuse.
NOTE:
If the extended storage switch malfunc-
tions, or if the fuse is open, it is not
necessary to replace the switch. In this
Maintenance and do-it-yourself
8-25