2011 INFINITI G-CONVERTIBLE spark plugs replace

8 Maintenance and do-it-yourself
Maintenance requirement.......................... 8-2
Scheduled maintenance ........................ 8-2
General maintenance ........................... 8-2
Where to go for service ......................... 8-2
General maintenance .............................. 8-2
Explanation of maintenance items ............... 8-2
Maintenance precautions .......................... 8-5
Engine compartment check locations ................ 8-6
VQ37VHR engine ............................... 8-6
Engine cooling system ............................. 8-7
Checking engine coolant level ................... 8-7
Changing engine coolant ........................ 8-8
Engine oil ........................................ 8-8
Checking engine oil level ....................... 8-8
Changing engine oil and filter ................... 8-9
Automatic transmission fluid .......................8-11
Power steering fluid ............................... 8-11
Brake and clutch fluid ............................ 8-12
Brake fluid ................................... 8-12
Clutch fluid (if so equipped) ....................8-12
Window washer fluid ............................. 8-13
Battery .......................................... 8-13
Jump starting ................................. 8-15Variable voltage control system
...................8-15
Drive belt ........................................ 8-16
Spark plugs ..................................... 8-16
Replacing spark plugs ......................... 8-17
Air cleaner ....................................... 8-17
Windshield wiper blades .......................... 8-18
Cleaning ...................................... 8-18
Replacing ..................................... 8-18
Brakes .......................................... 8-19
Self-adjusting brakes .......................... 8-19
Brake pad wear warning ....................... 8-19
Fuses ........................................... 8-20
Engine compartment ........................... 8-20
Passenger compartment ....................... 8-21
Intelligent Key battery replacement ................8-22
Lights ........................................... 8-24
Headlights .................................... 8-25
Exterior

and interior lights ..................... 8-25
Wheels and tires ................................. 8-27
Tire pressure .................................. 8-27
Tire labeling .................................. 8-30
Types of tires ................................. 8-32
Tire chains ................................... 8-32
Changing wheels and tires..................... 8-33

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 the 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 loose, have
it replaced or adjusted by an INFINITI
retailer.
2. Have the belt condition checked regularly.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.
VQ37VHR engine
SDI2119
DRIVE BELT SPARK PLUGS
8-16Maintenance and do-it-yourself

REPLACING SPARK PLUGS
If replacement is required, see an INFINITI re-
tailer for servicing.
Iridium-tipped spark plugs
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 maintenance schedule in
“INFINITI Service and Maintenance Guide”, but
do not reuse them by cleaning or regapping.
Always replace spark plugs with recommended
or equivalent ones.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 mainte-
nance intervals. See “INFINITI Service and Main-
tenance Guide” for maintenance 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
is not there, and the engine backfires, you
could be burned. Do not drive with the air
cleaner removed, and be careful when work-
ing on the engine with the air cleaner
removed.
● Never pour fuel into the throttle body or at-
tempt to start the engine with the air cleaner
removed. Doing so could result in serious
injury.
SDI2020
SDI2363
AIR CLEANER
Maintenance and do-it-yourself8-17

Driver-side memory.............3-37
Heated seats ................ .2-37
Seats ..................... .1-2
Security system, Vehicle security system . . .2-26
Security system (INFINITI Vehicle
Immobilizer System), Engine start .......2-27
Selector lever Shift lock release .............. .5-16
Separator, Retractable hard top ........3-20
Servicing climate control ............4-36
SETTING button ................. .4-12
Shift “P” warning (Automatic Transmission
models) ..................... .2-18
Shift lock release, Transmission ........5-16
Shifting Automatic transmission ...........5-12
Manual transmission .............5-16
Sliding front passenger’s seat ..........1-5
Sonar system .................. .5-45
Sonar system off switch .............5-47
Spare tire .................... .9-8
Spark plugs ................... .8-16
Speedometer ................... .2-5
Starting Before starting the engine ..........5-11
Jump starting ................ .6-14
Precautions when starting and driving . . .5-2
Push starting ................ .6-16
Starting the engine ............. .5-11
STATUS button .................. .4-7
Status light, Front passenger air bag .....1-42
Steering Power steering fluid .............8-11
Power steering system ...........5-47
Steering lock ................. .5-9
Steering lock release malfunction indicator
................... .2-18
Steering-wheel-mounted controls for
audio .................... .4-82
Tilt/telescopic steering ...........3-33
Storage ..................... .2-43
Storage box .................. .2-46
Sun visors ................... .3-34
Supplemental
air bag warning labels .....1-48
Supplemental air bag warning light . . .1-48, 2-12
Supplemental restraint system .........1-35
Precautions on supplemental restraint
system .................... .1-35
Switch Autolight switch .............. .2-32
Fog light switch .............. .2-36
Hazard warning flasher switch .......2-36
Headlight switch .............. .2-32
Ignition switch ............... .5-12
Ignition switch manual transmission
models .................... .5-16
Power door lock switch ............3-5
Rear window and outside mirror defroster
switch .................... .2-31
Retractable hard top switch .....3-23, 3-25
Turn signal switch ............. .2-35
Vehicle dynamic control (VDC) off switch .2-39
T
Tachometer ................... .2-6
Temperature gauge, Engine coolant
temperature gauge ............... .2-6
Theft (INFINITI Vehicle Immobilizer System),
Engine start ................... .2-27
Thigh extension ................. .1-5Three-way catalyst
................ .5-2
Tilt/telescopic steering .............3-33
Tire Pressure, Low tire pressure warning
light ..................... .2-10
Sealant .................... .6-3
Tire replacement indicator . . .......2-22
Tires Emergency tire puncture repair kit .....6-3
Flat tire .................... .6-2
Low tire pressure warning system ......5-3
Spare tire .................. .8-35
Tire and Loading information label .8-28, 9-11
Tire chains ................. .8-32
Tire dressing ................. .7-3
Tire pressure ................ .8-27
Tire pressure monitoring system
(TPMS) .................. .5-3, 6-2
Tire rotation ................ .8-33
Types of tires ................ .8-32
Uniform
tire quality grading .........9-19
Wheel/tire size ............... .9-8
Wheels and tires .............. .8-27
Top, Retractable hard top ............3-18
Touch screen system .............. .4-4
Towing Flat towing ................. .9-19
Tow truck towing .............. .6-17
Towing a trailer ............... .9-19
TPMS, Tire pressure monitoring system .....5-3
TPMS, Tire pressure warning system ......6-2
Trailer towing .................. .9-19
Transceiver, HomeLink Universal
Transceiver ................... .2-51
Transmission Automatic transmission fluid (ATF) .....8-11
10-6