2010 INFINITI G37 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
Coupe ........................................ 8-13 Sedan and coupe ............................. 8-14
Jump starting ................................. 8-15
Variable voltage control system ................... 8-15
Drive belts ....................................... 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 ........................................... 8-23
Sedan ........................................ 8-23
Coupe ........................................ 8-24
Headlights .................................... 8-25
Exterior and interior lights ..................... 8-25
Wheels and tires ................................. 8-28
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04/21/10—debbie


1. Power steering fluid pump
2. Alternator
3. Crankshaft pulley
4. Air conditioner compressor
5. Drive belt auto-tensioner
WARNINGBe sure the ignition switch is in the OFF or LOCK
position before servicing drive belts. The en-
gine could rotate unexpectedly. 1. Visually inspect each belt for signs of
unusual 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 belts checked regularly for con-
dition and tension in accordance with the
maintenance schedule in your “INFINITI
Service and Maintenance Guide”. WARNINGBe sure the engine and the ignition switch are
off and that the parking brake is engaged
securely.
CAUTIONBe sure to use the correct socket to remove the
spark plugs. An incorrect socket can damage
the spark plugs.
VQ37VHR engine SDI2119
DRIVE BELTS SPARK PLUGS
8-16 Maintenance and do-it-yourself
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04/21/10—debbie


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
 1
as 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
isn’t 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
SDI2033AIR CLEANER
Maintenance and do-it-yourself
8-17
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04/21/10—debbie