2013 INFINITI G SEDAN check engine

Black plate (405,1)
[ Edit: 2012/ 7/ 6 Model: V36-D ]
8 Maintenance and do-it-yourself
Maintenance requirement...
.................................... 8-3
Scheduled maintenance ...
.................................. 8-3
General maintenance ...
....................................... 8-3
Where to go for service ...
................................... 8-3
General maintenance ...
........................................... 8-3
Explanation of maintenance items ...
................... 8-3
Maintenance precautions ...
..................................... 8-6
Engine compartment check locations ...
................... 8-8
VQ37VHR engine ...
............................................. 8-8
Engine cooling system ...
......................................... 8-9
Checking engine coolant level ...
....................... 8-10
Changing engine coolant ...
............................... 8-10
Engine oil ...
.......................................................... 8-11
Checking engine oil level ...
............................... 8-11
Changing engine oil and filter ...
....................... 8-11
Automatic transmission fluid ...
............................. 8-13
Power steering fluid ...
........................................... 8-14
Brake and clutch fluid ...
....................................... 8-14
Brake fluid ...
.................................................... 8-15
Clutch fluid (if so equipped) ...
.......................... 8-15
Window washer fluid ...
......................................... 8-15
Battery ...
.............................................................. 8-16
Coupe ...
........................................................... 8-17
Sedan and coupe ...
.......................................... 8-17
Jump starting ...
................................................ 8-18 Variable voltage control system
...
......................... 8-19
Drive belts ...
........................................................ 8-19
Spark plugs ...
...................................................... 8-20
Replacing spark plugs ...
................................. 8-20
Air cleaner ...
........................................................ 8-21
Windshield wiper blades ...
................................... 8-22
Cleaning ...
...................................................... 8-22
Replacing ...
..................................................... 8-22
Brakes ...
.............................................................. 8-23
Self-adjusting brakes ...
................................... 8-23
Brake pad wear warning ...
.............................. 8-23
Fuses ...
................................................................ 8-24
Engine compartment ...
.................................... 8-24
Passenger compartment ...
............................... 8-25
Intelligent Key battery replacement ...
................... 8-26
Lights ...
................................................................ 8-28
Sedan ...
.......................................................... 8-28
Coupe ...
.......................................................... 8-29
Headlights ...
................................................... 8-30
Exterior and interior lights ...
........................... 8-30
Wheels and tires ...
............................................... 8-33
Tire pressure ...
............................................... 8-33
Tire labeling ...
................................................ 8-37
Types of tires ...
............................................... 8-39
Tire chains ...
................................................... 8-40
Condition:

Black plate (407,1)
[ Edit: 2012/ 7/ 6 Model: V36-D ]
GUID-7909F151-D270-426B-9317-ECCCF136345ASome day-to-day and regular maintenance
is essential to maintain your vehicle’s fine
mechanical condition, as well as its emis-
sion and engine performance.
It is the owner’s responsibility to make
sure that the scheduled maintenance, as
well as general maintenance, is performed.
As the vehicle owner, you are the only one
who can ensure that your vehicle receives
the proper maintenance. You are a vital link
in the maintenance chain.
SCHEDULED MAINTENANCEGUID-F67C0E74-FE81-4021-BFE9-6DCAA8B62868For your convenience, both required and
optional scheduled maintenance items are
described and listed in your“INFINITI
Service and Maintenance Guide”. You must
refer to that guide to ensure that necessary
maintenance is performed on your vehicle
at regular intervals.
GENERAL MAINTENANCEGUID-F5FB4C7E-7009-4482-8936-6B69512CBAEFGeneral maintenance includes those items
which should be checked during normal
day-to-day operation. They are essential for
proper vehicle operation. It is your respon-
sibility to perform these procedures reg-
ularly as prescribed.
Performing general maintenance checks requires minimal mechanical skill and only
a few general automotive tools.
These checks or inspections can be done
by yourself, a qualified technician or, if you
prefer, an INFINITI retailer.
WHERE TO GO FOR SERVICEGUID-36AD273A-936D-4E75-BA34-F3522084B4D1If maintenance service is required or your
vehicle appears to malfunction, have the
systems checked and serviced by an
INFINITI retailer.
INFINITI technicians are well-trained spe-
cialists and are kept up to date with the
latest service information through techni-
cal bulletins, service tips, and in-retailer-
ship information systems. They are
completely qualified to work on INFINITI
vehicles
beforework begins.
You can be confident that an INFINITI
retailer’s service department performs the
best job to meet the maintenance require-
ments on your vehicle.
GUID-D9BF222E-C089-4501-8A50-955A33E8DF3BDuring the normal day-to-day operation of
the vehicle, general maintenance should
be performed regularly as prescribed in
this section. If you detect any unusual
sounds, vibrations or smell, be sure to
check for the cause or have an INFINITI
retailer do it promptly. In addition, you
should notify an INFINITI retailer if you
think that repairs are required.
When performing any checks or mainte-
nance work, see “Maintenance precau-
tions” (P.8-6).
EXPLANATION OF MAINTENANCE
ITEMS
GUID-464D8334-4B6E-4650-8810-2AA00D8EFD2DAdditional information on the following
items with “*”is found later in this
section.
Outside the vehicleGUID-D21012E2-ED85-45D5-B3C1-02A03AE3EF12The maintenance items listed here should
be performed from time to time, unless
otherwise specified.
Doors and engine hood: Check that all
doors and the engine hood, operate
properly. Also ensure that all latches lock
securely. Lubricate hinges, latches, latch
pins, rollers and links if necessary. Make
sure that the secondary latch keeps the
hood from opening when the primary latch
Maintenance and do-it-yourself8-3
MAINTENANCE REQUIREMENT GENERAL MAINTENANCE
Condition:

Black plate (409,1)
[ Edit: 2012/ 7/ 6 Model: V36-D ]
securely. Check the belt webbing for cuts,
fraying, wear or damage.
Seats:Check seat position controls such as
seat adjusters, seatback recliner, etc. to
ensure they operate smoothly and that all
latches lock securely in every position.
Check that the head restraints move up
and down smoothly and that the locks (if
so equipped) hold securely in all latched
positions.
Steering wheel: Check for changes in the
steering conditions, such as excessive free
play, hard steering or strange noises.
Warning lights and chimes: Make sure that
all warning lights and chimes are operating
properly.
Windshield defroster: Check that the air
comes out of the defroster outlets properly
and in sufficient quantity when operating
the heater or air conditioner.
Windshield wiper and washer*: Check that
the wipers and washer operate properly
and that the wipers do not streak.
Under the hood and vehicleGUID-29B64B94-E77F-40DC-A4B2-6B5D542860EDThe maintenance items listed here should
be checked periodically (for example, each
time you check the engine oil or refuel). Battery*:
Check the fluid level in each cell.
It should be between the MAX and MIN
lines. Vehicles operated in high tempera-
tures or under severe condition require
frequent checks of the battery fluid level.
NOTE:
Care should be taken to avoid situations
that can lead to potential battery dis-
charge and potential no-start conditions
such as:
1. Installation or extended use of electro-
nic accessories that consume battery
power when the engine is not running
(Phone chargers, GPS, DVD players,
etc.)
2. Vehicle is not driven regularly and/or
only driven short distances.
In these cases, the battery may need to be
charged to maintain battery health.
Brake fluid level*: Make sure that the
brake fluid level is between the MAX and
MIN lines on the reservoir.
Engine coolant level*: Check the coolant
level when the engine is cold.
Engine drive belts*: Make sure that no belt
is frayed, worn, cracked or oily.
Engine oil level*: Check the level after parking the vehicle on a level spot and
turning off the engine. Wait more than 15
minutes for the oil to drain back into the oil
pan.
Exhaust system:
Make sure there are no
loose supports, cracks or holes. If the
sound of the exhaust seems unusual or
there is a smell of exhaust fumes, im-
mediately have the exhaust system in-
spected by an INFINITI retailer. (See
“Precautions when starting and driving”
(P.5-3) for exhaust gas (Carbon monoxide).)
Fluid leaks: Check under the vehicle for
fuel, oil, water or other fluid leaks after the
vehicle has been parked for a while. Water
dripping from the air conditioner after use
is normal. If you should notice any leaks or
if gasoline fumes are evident, check for the
cause and have it corrected immediately.
Power steering fluid level* and lines:
Check the level when the fluid is cold,
with the engine off. Check the lines for
proper attachment, leaks, cracks, etc.
Radiator and hoses: Check the front of the
radiator and clean off any dirt, insects,
leaves, etc., that may have accumulated.
Make sure the hoses have no cracks,
deformation, rot or loose connections.
Maintenance and do-it-yourself8-5
Condition:

Black plate (410,1)
[ Edit: 2012/ 7/ 6 Model: V36-D ]
8-6Maintenance and do-it-yourself
Underbody:The underbody is frequently
exposed to corrosive substances such as
those used on icy roads or to control dust.
It is very important to remove these
substances, otherwise rust will form on
the floor pan, frame, fuel lines and around
the exhaust system. At the end of winter,
the underbody should be thoroughly
flushed with plain water, being careful to
clean those areas where mud and dirt may
accumulate. For additional information,
see “Cleaning exterior” (P.7-2).
Windshield washer fluid*: Check that there
is adequate fluid in the reservoir.
GUID-DA5BC1C7-4A3F-402D-B20E-D7AF3C2C5866When performing any inspection or main-
tenance work on your vehicle, always take
care to prevent serious accidental injury to
yourself or damage to the vehicle. The
following are general precautions which
should be closely observed.
WARNING
. Park the vehicle on a level surface, apply
the parking brake securely and block the
wheels to prevent the vehicle from
moving. For manual transmission mod-
els, move the shift lever to N (Neutral).
For automatic transmission models,
move the selector lever to P (Park).
. Be sure the ignition switch is in the OFF
or LOCK position when performing any
parts replacement or repairs.
. Never connect or disconnect the battery
or any transistorized component while
the ignition switch is in the ON position.
. Never leave the engine or automatic
transmission related component har-
nesses disconnected while the ignition
switch is in the ON position.
. If you must work with the engine
running, keep your hands, clothing, hair and tools away from moving fans, belts
and any other moving parts.
. It is advisable to secure or remove any
loose clothing and remove any jewelry,
such as rings, watches, etc. before
working on your vehicle.
. Always wear eye protection whenever
you work on your vehicle.
. If you must run the engine in an
enclosed space such as a garage, be
sure there is proper ventilation for
exhaust gases to escape.
. Never get under the vehicle while it is
supported only by a jack. If it is
necessary to work under the vehicle,
support it with safety stands.
. Keep smoking materials, flame and
sparks away from fuel tank and the
battery.
. Your vehicle is equipped with an auto-
matic engine cooling fan. It may come on
at any time without warning, even if the
ignition key is in the OFF position and
the engine is not running. To avoid
injury, always disconnect the negative
battery cable before working near the
fan.
MAINTENANCE PRECAUTIONS
Condition:

Black plate (412,1)
[ Edit: 2012/ 7/ 6 Model: V36-D ]
8-8Maintenance and do-it-yourself
GUID-AFE9B83F-FA8B-4F31-955F-26554D8ED4E6
JVC0332X
VQ37VHR ENGINEGUID-7476C613-7968-488E-A6AE-1408D693BF3B1. Fuse/fusible link holder
2. Battery
3. Engine oil filler cap
4. Brake fluid reservoir5. Clutch fluid reservoir (Manual Trans-
mission models)
6. Window washer fluid reservoir
7. Power steering fluid reservoir
8. Air cleaner
9. Radiator filler cap 10. Drive belts
11. Engine coolant reservoir
12. Engine oil dipstick
ENGINE COMPARTMENT CHECK LOCATIONS
Condition:

Black plate (414,1)
[ Edit: 2012/ 7/ 6 Model: V36-D ]
8-10Maintenance and do-it-yourself
SDI2043
CHECKING ENGINE COOLANT LEVELGUID-0A58561D-6ED8-4332-9DEB-68F0F2BD40A6Check the coolant levelin the reservoir
when the engine is cold. If the coolant
level is below MIN
*2, open the reservoir
tank cap and add coolant up to the MAX
*1
level. If the reservoir tank is empty, check
the coolant level in the radiator when the
engine is cold. If there is insufficient
coolant in the radiator, fill the radiator
with coolant up to the filler opening and
also add it to the reservoir tank up to the
MAX level
*1.
Tighten the cap securely after adding
engine coolant. If the cooling system requires coolant
frequently, have it checked by an INFINITI
retailer.
CHANGING ENGINE COOLANTGUID-5414AC03-7904-49CD-BD61-168CF59A9756Major cooling system repairs should be
performed by an INFINITI retailer. The
service procedures can be found in the
appropriate INFINITI Service Manual.
Improper servicing can result in reduced
heater performance and engine overheat-
ing.
WARNING
.
To avoid the danger of being scalded,
never change the coolant when the
engine is hot.
. Never remove the radiator cap when the
engine is hot. Serious burns could be
caused by high pressure fluid escaping
from the radiator.
. Avoid direct skin contact with used
coolant. If skin contact is made, wash
thoroughly with soap or hand cleaner as
soon as possible.
. Keep coolant out of reach of children and
pets.
Engine coolant must be disposed of
properly. Check your local regulations.
Condition:

Black plate (415,1)
[ Edit: 2012/ 7/ 6 Model: V36-D ]
GUID-FB0623EB-5FAD-40C4-9AB0-442E7E1A0410
SDI2045
CHECKING ENGINE OIL LEVELGUID-EB400D20-7A84-4713-89BD-9708FBC8D0011. Park the vehicle on a level surface andapply the parking brake.
2. Run the engine until it reaches operat- ing temperature.
3. Turn off the engine. Wait more than 15
minutes for the oil to drain back into
the oil pan.
4. Remove the dipstick and wipe it clean. Reinsert it all the way.
5. Remove the dipstick again and check the oil level. It should be within the
range
*1. If the oil level is below*2,
remove the oil filler cap and pour recommended oil through the opening.
Do not overfill
*3.
6. Recheck oil level with the dipstick.
It is normal to add some oil between oil
maintenance intervals or during the break-
in period, depending on the severity of
operating conditions.
CAUTION
Oil level should be checked regularly.
Operating the engine with an insufficient
amount of oil can damage the engine, and
such damage is not covered by warranty.
CHANGING ENGINE OIL AND FILTERGUID-8EFE39B7-109C-4EBB-91A7-80DFF961CBD7
Vehicle set-upGUID-4BC77A05-BF08-445F-911E-85628C5344131. Park the vehicle on a level surface and apply the parking brake.
2. Run the engine until it reaches operat- ing temperature.
3. Turn the engine off and wait more than 15 minutes.
4. Raise and support the vehicle using a suitable floor jack and safety jack
stands.
.Place the safety jack stands underthe vehicle jack-up points.
.A suitable adapter should be at-tached to the jack stand saddle.
5. Remove the plastic engine undercover. a. Remove the small plastic clip at thecenter point of the undercover.
b. Then remove the other bolts that hold the undercover in place.
CAUTION
Make sure the correct lifting and support
points are used to avoid vehicle damage.
Maintenance and do-it-yourself8-11
ENGINE OIL
Condition:

Black plate (416,1)
[ Edit: 2012/ 7/ 6 Model: V36-D ]
8-12Maintenance and do-it-yourself
SDI2335
Two-wheel drive (2WD) models
Engine oil and filterGUID-189A8074-AB5D-4F02-B5E6-2CEF3A0EAAE31. Place a large drain pan under the drainplug.
2. Remove the oil filler cap.
3. Remove the drain plug
*1with a
wrench and completely drain the oil.
CAUTION
Be careful not to burn yourself, as the
engine oil is hot.
SDI2047
All-wheel drive (AWD) models.Waste oil must be disposed of
properly.
.Check your local regulations.
4. (Perform steps 4 to 7 only when the engine oil filter change is needed.)
Loosen the oil filter
*2with an oil filter
wrench. Remove the oil filter by turning
it by hand.
5. Wipe the engine oil filter mounting
surface with a clean rag.
CAUTION
Be sure to remove any old rubber gasket
remaining on the mounting surface of the
engine. Failure to do so could lead to engine
damage.
6. Coat the gasket on the new filter with
clean engine oil.
7. Screw in the oil filter clockwise until a slight resistance is felt, then tighten
additionally more than 2/3 turn.
Oil filter tightening torque:11 to 15 ft-lb
(14.7 to 20.5 N·m)
8. Clean and re-install the drain plug with a new washer. Securely tighten the
drain plug with a wrench.
Drain plug tightening torque:22 to 29 ft-lb
(29 to 39 N·m)
Do not use excessive force.
9. Refill engine with recommended oil and install the oil filler cap securely.
See “Capacities and recommended
fuel/lubricants” (P.9-2) for drain and
Condition: