engine INFINITI Q70 2014 Owner's Manual

Black plate (444,1)
[ Edit: 2013/ 10/ 21 Model: Y51-D ]
8-6Maintenance and do-it-yourself
even when the engine is off.
CAUTION
.Do not work under the hood while the
engine is hot. Turn the engine off and
wait until it cools down.
. Avoid direct contact with used engine oil
and coolant. Improperly disposed engine
oil, coolant, and/or other vehicle fluids
can damage the environment. Always
conform to local regulations for disposal
of vehicle fluid.
This “8. Maintenance and do-it-yourself”
section gives instructions regarding only
those items which are relatively easy for an
owner to perform.
A genuine INFINITI Service Manual is also
available. (See “Owner’s Manual/Service
Manual order information” (P.9-23).)
You should be aware that incomplete or
improper servicing may result in operating
difficulties or excessive emissions, and
could affect your warranty coverage. If in
doubt about any servicing, we recommend
that it be done by an INFINITI retailer.
Condition:

Black plate (445,1)
[ Edit: 2013/ 10/ 21 Model: Y51-D ]
Y51D-V-E01-40355A41-7F10-4734-AE5E-6CAA3DAE4D37
SDI2569
VK56VD ENGINEY51D-V-E01-E9D8FF24-AD48-40B9-8D74-62D279278F91To remove the engine compartment cover,
unhook the clips
*1located as illustrated.
Loosen the bolts
*Aand then pull the
cover upward.
Maintenance and do-it-yourself8-7
ENGINE COMPARTMENT CHECK LOCATIONS
Condition:

Black plate (446,1)
[ Edit: 2013/ 10/ 21 Model: Y51-D ]
8-8Maintenance and do-it-yourself
SDI2538
1. Battery
2. Fuse/fusible link holder
3. Engine oil filler cap
4. Brake fluid reservoir
5. Window washer fluid reservoir
6. Power steering fluid reservoir
7. Air cleaner
8. Radiator filler cap
9. Engine coolant reservoir
10. Engine oil dipstick
11. Drive belts
12. Fuse/fusible link holder
Condition:

Black plate (447,1)
[ Edit: 2013/ 10/ 21 Model: Y51-D ]
SDI2551
VQ37VHR ENGINEY51D-V-E01-624AD3D6-4034-4C42-96DA-D1FCECFC3235To remove the engine compartment cover,
unhook the clips located as illustrated.
Maintenance and do-it-yourself8-9
Condition:

Black plate (448,1)
[ Edit: 2013/ 10/ 21 Model: Y51-D ]
8-10Maintenance and do-it-yourself
JVC0538X
Type AGUID-5752B3A4-D8FF-4961-9160-5090555FCE311. Fuse/fusible link holder
2. Battery
3. Engine oil filler cap
4. Brake fluid reservoir
5. Window washer fluid reservoir
6. Power steering fluid reservoir
7. Air cleaner
8. Radiator filler cap
9. Engine coolant reservoir
10. Engine oil dipstick
11. Drive belts
Condition:

Black plate (449,1)
[ Edit: 2013/ 10/ 21 Model: Y51-D ]
JVC0539X
Type BGUID-CA2406D1-CA97-4C99-9B20-6F21F956C6CA1. Fuse/fusible link holder
2. Battery
3. Engine oil filler cap
4. Brake fluid reservoir
5. Window washer fluid reservoir
6. Power steering fluid reservoir
7. Air cleaner
8. Radiator filler cap
9. Engine coolant reservoir
10. Engine oil dipstick
11. Drive belts
Maintenance and do-it-yourself8-11
Condition:

Black plate (450,1)
[ Edit: 2013/ 10/ 21 Model: Y51-D ]
8-12Maintenance and do-it-yourself
Y51D-V-E01-662E477D-FA0C-4DA9-8B55-B58B05C7E362The engine cooling system is filled at the
factory with a pre-diluted mixture of 50%
Genuine NISSAN Long Life Antifreeze/Cool-
ant (blue) and 50% water to provide year-
round anti-freeze and coolant protection.
The anti-freeze solution contains rust and
corrosion inhibitors. Additional engine
cooling system additives are not neces-
sary.
WARNING
.Never remove the radiator cap when the
engine is hot. Wait until the engine and
radiator cool down. Serious burns could
be caused by high pressure fluid escap-
ing from the radiator. See precautions in
“If your vehicle overheats” (P.6-12).
. The radiator is equipped with a pressure
type radiator cap. To prevent engine
damage, use only a genuine NISSAN
radiator cap.
CAUTION
.Never use any cooling system additives
such as radiator sealer. Additives may
clog the cooling system and cause damage to the engine, transmission
and/or cooling system.
. When adding or replacing coolant, be
sure to use only Genuine NISSAN Long
Life Antifreeze/Coolant (blue) or equiva-
lent. Genuine NISSAN Long Life Anti-
freeze/Coolant (blue) is pre-diluted to
provide antifreeze protection to −348F
(−378C). If additional freeze protection is
needed due to weather where you
operate your vehicle, add Genuine
NISSAN Long Life Antifreeze/Coolant
(blue) concentrate following the direc-
tions on the container. If an equivalent
coolant other than Genuine NISSAN Long
Life Antifreeze/Coolant (blue) is used,
follow the coolant manufacture’s instruc-
tions to maintain minimum antifreeze
protection to −348F (−378C). The use of
other types of coolant solutions other
than Genuine NISSAN Long Life Anti-
freeze/Coolant (blue) or equivalent may
damage the engine cooling system.
. The life expectancy of the factory-fill
coolant is 105,000 miles (168,000 km)
or 7 years. Mixing any other type of
coolant other than Genuine NISSAN Long
Life Antifreeze/Coolant (blue) , including
Genuine NISSAN Long Life Antifreeze/ Coolant (green), or the use of non-
distilled water will reduce the life
expectancy of the factory-fill coolant.
Refer to the INFINITI Service and Main-
tenance Guide for more details.
ENGINE COOLING SYSTEM
Condition:

Black plate (451,1)
[ Edit: 2013/ 10/ 21 Model: Y51-D ]
SDI2043
CHECKING ENGINE COOLANT LEVELY51D-V-E01-84AE9FA6-E55B-4D94-91B9-C765423765DC
Type AGUID-ADA6E49A-21E7-4E48-8999-4B103F566062Check 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.
SDI2624
Type BGUID-341ED9AB-6462-4E58-94AF-F9670CA91ED2Check the coolant level in the reservoir
tank when the engine is running and after
it reaches normal operating temperature. If
the coolant level is below MIN level
*2,
add coolant up to the MAX level
*1. 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 cap above the radiator upper hose
opening and also add it to the reservoir
tank up to the MAX level
*1. Put on the
filler cap above the radiator upper hose
and with the reservoir cap open, start the
Maintenance and do-it-yourself8-13
Condition:

Black plate (452,1)
[ Edit: 2013/ 10/ 21 Model: Y51-D ]
8-14Maintenance and do-it-yourself
engine. Run the engine until it reaches
normal operating temperature. Add coolant
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 COOLANTY51D-V-E01-A426F257-7E1C-4FDD-BCE7-CC70502D59EAMajor 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.
Y51D-V-E01-A7C453B1-918A-4063-9B01-B06D637810DF
SDI2541
VK56VD engine
SDI2045
VQ37VHR engine
ENGINE OIL
Condition:

Black plate (453,1)
[ Edit: 2013/ 10/ 21 Model: Y51-D ]
CHECKING ENGINE OIL LEVELY51D-V-E01-F1375A53-9C95-4044-9249-810C01D32BB11. 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 FILTERY51D-V-E01-9647A2B0-4907-4EB7-83BB-101487A3007A
Vehicle set-upY51D-V-E01-A77DD255-330F-4511-9453-9FE2A63539431. 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 under
the vehicle jack-up points.
.A suitable adapter should be at-tached to the jack stand saddle.
5. Remove the plastic engine undercover.
.Remove the small plastic clip at the center point of the undercover.
.Then remove the other bolts thathold the undercover in place.
CAUTION
Make sure the correct lifting and support
points are used to avoid vehicle damage.
Maintenance and do-it-yourself8-15
Condition: