2008 INFINITI FX35 hot

LT-4
< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001612924
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SUPPLEMENTAL RESTRAINT SYS-
TEM” and “SEAT BELTS” of this Service Manual.
WARNING:
• To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISS AN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the “SUPPLEMEN TAL RESTRAINT SYSTEM”.
 Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
General Precaution for Service OperationINFOID:0000000001328264
 Never work with wet hands.
 Xenon headlamp includes high voltage generating part. Be sure to disconnect battery negative cable (negative terminal) or power
fuse before removing, installing, or touching the xenon headlamp
(including lamp bulb).
 Turn the lighting switch OFF before disconnecting and connecting the connector.
 When turning the xenon headlamp on and while it is illuminated, never touch the harness, bulb, and socket of the headlamp.
 When checking the headlamp on/off operation, check it on vehicle
and with the power connected to the vehicle-side connector.
 Do not touch the headlamp bulb glass surface with bare hands or allow oil or grease to get on it. Do not touch the headl amp bulb just after the headlamp is turned off, because
it is very hot.
 Install the xenon headlamp bulb socket co rrectly. If it is installed improperly, high-voltage leak or corona dis-
charge may occur that can melt the bulb, connecto r, and housing. Do not illuminate the xenon headlamp
bulb out of the headlamp housing. Doing so can cause fire and harm your eyes.
 When the bulb has burned out, wrap it in a thick vinyl bag and discard. Do not break the bulb.
 Leaving the bulb removed from the headlamp housing for a long period of time can deteriorate the perfor- mance of the lens and reflector (dirt, clouding). Al ways prepare a new bulb and have it on hand when replac-
ing the bulb.
 When adjusting the headlamp aiming, turn the aiming adjus tment screw only in the tightening direction. (If it
is necessary to loosen the screw, first fully loosen the screw, and then turn it in the tightening direction.)
 Do not use organic solvent (paint thinner or gasoline) to clean lamps and to remove old sealant.
PKID0793E
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LU-6
< SERVICE INFORMATION >[VQ35DE]
ENGINE OIL
WARNING:
• Be careful not to get burn your
self, as engine oil may be hot.
 Oil pressure check should be done in “Parking position”.
1. Check the engine oil level. Refer to "ENGINE OIL LEVEL".
2. Remove front engine undercover with power tool.
3. Disconnect harness connector at oil pressure sensor, and remove oil pressure sensor using deep socket (commercial ser-
vice tool).
CAUTION:
Do not drop or shock oil pressure switch.
4. Install the oil pressure gauge (SST) and hose (SST).
5. Start the engine and warm it up to normal operating temperature.
6. Check the engine oil pressure with engine running under no-load. NOTE:
When the engine oil temperature is low, the engine oil pressure becomes high.
Engine oil pressure [Engi ne oil temperature at 80 °C (176 °F)]
Unit: kPa (kg/cm2, psi)
If difference is extreme, check engine oil passage and oil pump for engine oil leaks.
7. After the inspections, install oil pressure switch as follows:
a. Remove old liquid gasket adhering to oil pressure switch and the mating surface.
b. Apply liquid gasket and tighten oil pressure switch to the specification. Use Genuine RTV Silicone Seal ant or equivalent. Refer to GI-44, "
Recommended Chemical Prod-
uct and Sealant".
SBIA0452E
SBIA0453E
SLC926
Engine speed Approximate discharge pressure
Idle speed More than 98 (1.0, 14)2,000 rpm More than 294 (3.0, 43)
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
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ENGINE OILLU-7
< SERVICE INFORMATION > [VQ35DE]
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Oc. After warming up engine, make sure there is no leakage of engine oil with running engine.
Changing Engine OilINFOID:0000000001325814
WARNING:
 Be careful not to get burn yourself, as engine oil may be hot.
 Prolonged and repeated contact with used engine
oil may cause skin cancer. Try to avoid direct skin
contact with used engine oil. If skin contact is made, wash thorough ly with soap or hand cleaner as
soon as possible.
1. Remove front engine undercover with power tool.
2. Warm up the engine, and check for engine oil leakage from engine components. Refer to LU-5, "
Inspec-
tion".
3. Stop the engine and wait for 10 minutes.
4. Loosen oil filler cap and then remove drain plug.
5. Drain engine oil.
6. Install drain plug with new washer. Refer to EM-30, "
Component (2WD Models)".
CAUTION:
Be sure to clean drain plug and install with new washer.
7. Refill with new engine oil. Engine oil specificat ion and viscosity:
Refer to MA-9, "
Fluids and Lubricants".
Engine oil capacity (Approximate):
Unit: (US qt, lmp qt)
CAUTION:
 When filling engine oil, do not pull out oil level gauge.
 The refill capacity depends on the engine oi l temperature and drain time. Use these specifica-
tions for reference only.
 Always use oil level gauge to determine the proper amount of engine oil in engine.
8. Warm up the engine and check area around drain plug and oil filter for engine oil leakage.
9. Stop the engine and wait for 10 minutes.
10. Check the engine oil level. Refer to LU-5, "
Inspection".
Oil pressure switch:
: 14.8 N·m (1.5 kg-m, 11 ft-lb)
Oil pan drain plug: : 34.3 N·m (3.5 kg-m, 25 ft-lb)
Drain and refill With oil filter change 4.7 (5, 4-1/8)
Without oil filter change 4.4 (4-5/8, 3-7/8)
Dry engine (Overhaul) 5.4 (5-3/4, 4-3/4)
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
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LU-8
< SERVICE INFORMATION >[VQ35DE]
OIL FILTER
OIL FILTER
Removal and InstallationINFOID:0000000001325815
REMOVAL
1. Remove front engine undercover with power tool.
2. Using oil filter wrench (SST), remove oil filter.
CAUTION:
 Oil filter is provided with relief valve. Use Genuine NissanOil Filter or equivalent.
 Be careful not to get burned when engine and engine oil may be hot.
 When removing, prepare a sh op cloth to absorb any
engine oil leakage or spillage.
 Do not allow engine oil to adhere to drive belts.
 Completely wipe off any engine oil that adheres to engine
and vehicle.
INSTALLATION
1. Remove foreign materials adhering to oil filter installation surface.
2. Apply engine oil to the oil seal contact surface of new oil filter.
3. Screw oil filter manually until it touches the installation surface,
then tighten it by 2/3 turn. Or tighten to the specification.
INSPECTION AFTER INSTALLATION
1. Check the engine oil level. Refer to LU-5, "Inspection".
SBIA0454E
SBIA0455E
SMA010
Oil filter:
: 17.7 N·m (1.8 kg-m, 13 ft-lb)
SMA229B
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
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LU-10
< SERVICE INFORMATION >[VQ35DE]
OIL FILTER BRACKET (AWD)
OIL FILTER BRACKET (AWD)
ComponentINFOID:0000000001325816
Removal and InstallationINFOID:0000000001325817
REMOVAL
WARNING:
Be careful not to get burn yourself, as engine oil may be hot.
1. Remove front engine undercover with power tool.
2. Using the oil filter wrench [SST: KV10115801 (J38956)], remove oil filter. Refer to
LU-8, "
Removal and
Installation".
CAUTION:
Do not spill engine oil on drive belt.
3. Remove oil cooler connector bolt, and then oil cooler with water hoses connected.
4. Disconnect oil temperature sensor and oi l pressure switch harness connectors.
5. Remove oil filter bracket from oil pan (upper).
6. Remove oil temperature sensor and oil pr essure switch from oil filter bracket.
INSTALLATION
Note the following, and install in the reverse order of removal.
 Install oil pressure switch and oil temperature sensor as follows:
- Remove old liquid gasket adhering to oil pressure switch and oil filter bracket.
- Apply liquid gasket and install oil pressure switch, and then oil temperature sensor with a new washer.
Use Genuine RTV Silicone Seal ant or equivalent. Refer to GI-44, "
Recommended Chemical Product
and Sealant".
1. Oil filter 2. Connector bolt 3. Oil cooler
4. O-ring 5. Relief valve 6. Oil filter bracket
7. Gasket 8. Oil pressure switch 9. Oil temperature sensor
10. Washer 11. Oil pan (upper)
SBIA0593E
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OIL COOLERLU-13
< SERVICE INFORMATION > [VQ35DE]
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AWD models
Removal and InstallationINFOID:0000000001325819
REMOVAL
WARNING:
Be careful not to get burn yourself, as en
gine oil and engine coolant may be hot.
NOTE:
When removing oil cooler only, step 2 is unnecessary.
1. Remove front engine undercover with power tool.
2. Drain engine coolant from radiator and cylinder block. Refer to CO-10, "
Changing Engine Coolant" and
EM-123, "
Disassembly and Assembly".
NOTE:
Perform this step when removing water pipes.
3. Disconnect water hoses from oil cooler.  When removing oil cooler only, pinching water hoses near oil cooler to prevent engine coolant from spill-
ing out.
 Remaining engine coolant in piping will come out. Use a tray to collect it.
CAUTION:
 Perform this step when the engine is cold.
 Do not spill engine coolant on drive belts.
4. Using oil filter wrench [SST: KV10115801 (J38956)], remove oil filter. Refer to LU-8, "
Removal and Instal-
lation".
CAUTION:
Do not spill engine oil on drive belts.
5. Remove connector bolt, and remove oil cooler. CAUTION:
Do not spill engine oil to rubber parts such as drive belts and engine mounting insulator.
SBIA0584E
1. Oil filter 2. Connector bolt 3. Oil cooler
4. O-ring 5. Relief valve 6. Oil filter bracket
7. Water hose 8. Water hose 9. Water pipe
10. Water hose
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ENGINE OILLU-23
< SERVICE INFORMATION > [VK45DE]
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ENGINE OIL
InspectionINFOID:0000000001325829
ENGINE OIL LEVEL
NOTE:
Before starting engine, put vehicle horizontally and check
the engine oil level. If engine is already started, stop
it and allow 15 minutes before checking.
1. Pull out oil level gauge and wipe it clean.
2. Insert oil level gauge and make sure the engine oil level is within the range shown in the figure.
3. If it is out of range, adjust it.
ENGINE OIL APPEARANCE
 Check engine oil for white turbidity or heavy contamination.
 If engine oil becomes turbid and white, it is highl y probable that it is contaminated with engine coolant.
Repair or replace damaged parts.
ENGINE OIL LEAKAGE
Check for oil leakage around the following area.
Oil pan
 Oil pan drain plug
 Oil pressure switch
 Oil filter
 Oil cooler
 Intake valve timing control cover
 Intake valve timing control solenoid valve
 Front cover
 Chain tensioner cover
 Mating surface between cylinder block and cylinder head
 Mating surface between cylinder head and rocker cover
 Crankshaft oil seals (front and rear)
OIL PRESSURE CHECK
WARNING:
 Be careful not to burn yoursel f, as engine oil may be hot.
 Oil pressure check should be done in “Parking position”.
1. Check the engine oil level. Refer to "ENGINE OIL LEVEL".
2. Remove front engine undercover with power tool.
3. Disconnect harness connector at oil pressure switch, and remove oil pressure switch using deep socket (commercial ser-
vice tool).
CAUTION:
Do not drop or shock oil pressure switch.
PBIC0801E
PBIC1524E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
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LU-24
< SERVICE INFORMATION >[VK45DE]
ENGINE OIL
4. Install oil pressure gauge and hose (SST).
5. Start engine and warm it up to normal operating temperature.
6. Check the engine oil pressure with engine running under no-load.
NOTE:
When engine oil temperature is low, engine oil pressure becomes high.
Engine oil pressure [Eng ine oil temperature at 80°C (176 °F)]
Uni t: kPa (kg/cm2, psi)
If difference is extreme, check oil passage and oil pump for oil leaks.
7. After the inspections, install oil pressure switch as follows:
a. Remove old liquid gasket adhering to oil presser switch and engine.
b. Apply liquid gasket and tighten oil pressure switch to the specification. Use Genuine RTV Silicone Seal ant or equivalent. Refer to GI-44, "
Recommended Chemical Prod-
uct and Sealant".
c. After warming up engine, make sure there is no leakage of engine oil with running engine.
Changing Engine OilINFOID:0000000001325830
WARNING:
 Be careful not to burn yoursel f, as engine oil may be hot.
 Prolonged and repeated contact with used engine oil may cause ski n cancer. Try to avoid direct skin
contact with used engine oil. If skin contact is made, wash thoroughly with soap or hand cleaner as
soon as possible.
1. Remove front engine undercover with power tool.
2. Warm up engine, put vehicle horizontally and check for engine oil leakage from engine components. Refer
to LU-23, "
Inspection".
3. Stop engine and wait for 15 minutes.
4. Loosen oil filler cap, and then remove drain plug.
5. Drain engine oil.
SLC926
Engine speed Approximate discharge pressure
Idle speed More than 98 (1.0, 14)2,000 rpm More than 294 (3.0, 43)
: 14.8 N·m (1.5 kg-m, 11 ft-lb)
PBIC0993E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C