radiator INFINITI FX35 2008 Manual Online

OIL SEALEM-223
< SERVICE INFORMATION > [VK45DE]
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1. Remove the following parts:
 Front engine undercover
 Radiator: Refer to CO-40, "
Component".
 Drive belt: Refer to EM-170, "
Component".
 Cooling fan: Refer to CO-48, "
Component (Crankshaft Driven type)".
 Rear plate cover: Refer to EM-183, "
Component".
2. Remove crankshaft pulley as follows:
a. Set ring gear stopper (SST).
b. Loosen crankshaft pulley bolt, and then pull crankshaft pulley with both hands to remove it.
CAUTION:
 Do not remove crankshaft pulley bolt. Keep loosenedcrankshaft pulley bolt in place to protect removed crank-
shaft pulley from dropping.
 Do not remove balance weight (inner hexagon bolt) at the
front of crankshaft pulley.
3. Remove front oil seal using suitable tool. CAUTION:
Be careful not to damage front cover and oil pump drive
spacer.
INSTALLATION
1. Apply new engine oil to both oil seal lip and dust seal lip of new front oil seal.
2. Install front oil seal. Install front oil seal so that each seal lip is oriented as shown in
the figure.
PBIC1656E
SBIA0358E
SBIA0359E
SEM715A
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EM-238
< SERVICE INFORMATION >[VK45DE]
ENGINE ASSEMBLY
1. Release fuel pressure. Refer to
EC-665, "Fuel Pressure Check".
2. Drain engine coolant from radiator. Refer to CO-37, "
Changing Engine Coolant".
CAUTION:
 Perform this step when engine is cold.
 Do not spill engine coolant on drive belts.
3. Disconnect both battery terminal. Refer to SC-4, "
How to Handle Battery".
4. Remove crankshaft position sensor (POS) from transmission. CAUTION:
 Handle carefully to avoid dropping and shocks.
 Do not disassemble.
 Do not allow metal powder to adhere to magnetic part at sensor tip.
 Do not place sensors in a location wh ere they are exposed to magnetism.
5. Remove the following parts:  Hood assembly: Refer to BL-13, "
Fitting Adjustment".
 Engine cover: Refer to EM-169
.
 Front and rear engine undercover
 Air duct (inlet), air duct and air cleaner case assembly: Refer to EM-173, "
Component".
 Drive belts: Refer to EM-170, "
Component".
 Radiator and radiator hoses (upper and lower): Refer to CO-40, "
Component".
 Front road wheels and tires
Engine Room LH
1. Disconnect engine room harness from the engine side and set it aside for easier work.
2. Disconnect heater hoses, and install plugs to avoid leakage of engine coolant.
3. Disconnect ground cable from exhaust manifold cover to vehicle.
4. Disconnect vacuum hose between vehicle and engine and set it aside.
5. Discharge refrigerant from A/C circuit. Refer to ATC-120, "
HFC-134a (R-134a) Service Procedure".
6. Remove A/C piping from A/C compressor, and temporarily fasten it on vehicle with a rope. Refer to AT C -
121, "Component".
Engine Room RH
1. Disconnect fuel feed hose and EVAP hose. Refer to EM-190, "Component".
CAUTION:
Fit plugs onto disconnected hose to prevent fuel leak.
2. Disconnect engine room harness from the engine side and set it aside for easier work.
3. Disconnect ground cable from exhaust manifold cover to vehicle.
4. Disconnect vacuum hose between vehicle and engine and set it aside.
5. Disconnect reservoir tank of power steering oil pum p from engine, and move it aside for easier work.
CAUTION:
When temporarily securing, keep reservoir tank upright to avoid a fluid leak.
Vehicle Underbody
1. Remove front cross bar. Refer to FSU-5, "On-Vehicle Inspection and Service".
2. Disconnect power steering oil pump from engine. Move it from its location and secure with a rope for eas-
ier work. Refer to PS-29, "
Removal and Installation (VK45DE Models)".
3. Remove A/T fluid cooler tube. Refer to AT-241, "
Removal and Installation (2WD Models)".
4. Remove exhaust front tube and center muffler with power tool. Refer to EX-3, "
Checking Exhaust Sys-
tem".
5. Remove RH and LH transverse link mounting bolts and nuts. Refer to FSU-13, "
Removal and Installation".
6. Disconnect stabilizer connecting rod lower. Refer to FSU-5, "
On-Vehicle Inspection and Service".
7. Remove A/T control rod at control device assembly side. Then temporarily secure it on transmission, so
that it does not sag. Refer to AT-205, "
Control Device Removal and Installation".
8. Remove rear plate cover from oil pan. Then remove bolts fixing drive plate to torque converter. Refer to EM-183, "
Component" and AT-241, "Removal and Installation (2WD Models)".
9. Remove transmission joint bolts which pierce at oil pan lower rear side. Refer to AT-241, "
Removal and
Installation (2WD Models)".
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GI-4
< SERVICE INFORMATION >
PRECAUTIONS
 To prevent serious burns:Avoid contact with hot metal parts.
Do not remove the radiator cap when the engine is hot.
 Dispose of or recycle drained oil or the solvent used for cleaning parts in an appropriate manner.
 Do not attempt to top off the fuel tank after the fuel pump nozzle
shuts off automatically.
Continued refueling may cause fuel overflow, resulting in fuel spray
and possibly a fire.
 Clean all disassembled parts in the designated liquid or solvent prior to inspection or assembly.
 Replace oil seals, gaskets, packings, O-rings, locking washers, cotter pins, self-locking nuts, etc. with new ones.
 Replace inner and outer races of tapered roller bearings and needle bearings as a set.
 Arrange the disassembled parts in accordance with their assembled locations and sequence.
 Do not touch the terminals of electrical com ponents which use microcomputers (such as ECM).
Static electricity may damage internal electronic components.
 After disconnecting vacuum or air hoses, atta ch a tag to indicate the proper connection.
 Use only the fluids and lubricants specified in this manual.
 Use approved bonding agent, sealants or their equivalents when required.
 Use hand tools, power tools (disassembly only) and recommended special tools where specified for safe and efficient service repairs.
 When repairing the fuel, oil, water, vacuum or exhaust systems,
check all affected lines for leaks.
 Before servicing the vehicle: Protect fenders, upholstery and carpeting with appropriate covers.
Take caution that keys, buckles or buttons do not scratch paint.
WARNING:
To prevent ECM from storing the diagnostic tro uble codes, do not carelessly disconnect the harness
connectors which are related to the engine cont rol system and TCM (transmission control module)
system. The connectors should be disconnected on ly when working according to the WORK FLOW of
TROUBLE DIAGNOSES in EC and AT sections.
Precaution for Three Way CatalystINFOID:0000000001325655
If a large amount of unburned fuel flows into the catalyst , the catalyst temperature will be excessively high. To
prevent this, follow the instructions.
 Use unleaded gasoline only. Leaded gasoline will seriously damage the three way catalyst.
 When checking for ignition spark or measuring engine compression, make tests quickly and only when nec- essary.
 Do not run engine when the fuel tank level is low, otherwise the engine may misfire, causing damage to the
catalyst.
SGI233
PBIC0190E
SGI234
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GW-8
< SERVICE INFORMATION >
SQUEAK AND RATTLE TROUBLE DIAGNOSES
Most of these incidents can be repaired by adjusting, securing or insulatingthe item(s) or component(s) caus-
ing the noise.
SUNROOF/HEADLINING
Noises in the sunroof/headlining area c an often be traced to one of the following:
1. Sunroof lid, rail, linkage or seals making a rattle or light knockingnoise
2. Sunvisor shaft shaking in the holder
3. Front or rear windshield touching headlining and squeaking
Again, pressing on the components to stop the noise while duplicatingthe conditions can isolate most of these
incidents. Repairs usually consistof insulating with felt cloth tape.
SEATS
When isolating seat noise it's important to note the pos ition the seatis in and the load placed on the seat when
the noise is present. These conditionsshould be duplic ated when verifying and isolating the cause of the
noise.
Cause of seat noise include:
1. Headrest rods and holder
2. A squeak between the seat pad cushion and frame
3. The rear seatback lock and bracket
These noises can be isolated by moving or pressing on the suspectedcomponents while duplicating the condi-
tions under which the noise occurs.Most of these incidents can be repaired by repositioning the component
orapplying urethane tape to the contact area.
UNDERHOOD
Some interior noise may be caused by components under the hood or onthe engine wall. The noise is then
transmitted into the passenger compartment.
Causes of transmitted underhood noise include:
1. Any component mounted to the engine wall
2. Components that pass through the engine wall
3. Engine wall mounts and connectors
4. Loose radiator mounting pins
5. Hood bumpers out of adjustment
6. Hood striker out of adjustment
These noises can be difficult to isolate since they cannot be reached from the interior of the vehicle. The best
method is to secure, move or insulate one component at a time and test drive the \
vehicle. Also, engine RPM
or load can be changed to isolate the noise. Repairs can usually be made by moving, adjusting, securing, or
insulating the component causing the noise.
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SQUEAK AND RATTLE TROUBLE DIAGNOSESIP-7
< SERVICE INFORMATION >
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Most of these incidents can be repaired by adjusting, se curing or insulating the item(s) or component(s) caus-
ing the noise.
SUNROOF/HEADLINING
Noises in the sunroof/headlining area can often be traced to one of the following:
1. Sunroof lid, rail, linkage or seals making a rattle or light knocking noise
2. Sunvisor shaft shaking in the holder
3. Front or rear windshield touching headlining and squeaking
Again, pressing on the components to stop the noise while duplicating the conditions can isolate most of these
incidents. Repairs usually consist of insulating with felt cloth tape.
SEATS
When isolating seat noise it's important to note the pos ition the seat is in and the load placed on the seat when
the noise is present. These conditions should be duplic ated when verifying and isolating the cause of the
noise.
Cause of seat noise include:
1. Headrest rods and holder
2. A squeak between the seat pad cushion and frame
3. The rear seatback lock and bracket
These noises can be isolated by moving or pressing on the suspected components while duplicating the con-
ditions under which the noise occurs. Most of thes e incidents can be repaired by repositioning the component
or applying urethane tape to the contact area.
UNDERHOOD
Some interior noise may be caused by components under the hood or on the engine wall. The noise is then
transmitted into the passenger compartment.
Causes of transmitted underhood noise include:
1. Any component mounted to the engine wall
2. Components that pass through the engine wall
3. Engine wall mounts and connectors
4. Loose radiator mounting pins
5. Hood bumpers out of adjustment
6. Hood striker out of adjustment
These noises can be difficult to isolate since they cannot be reached from the interior of the vehicle. The best
method is to secure, move or insulate one component at a time and test drive the vehicle. Also, engine RPM
or load can be changed to isolate the noise. Repairs c an usually be made by moving, adjusting securing, or
insulating the component causing the noise.
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HEADLAMP - XENON TYPE -LT-29
< SERVICE INFORMATION >
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1. Turn lighting switch OFF.
2. Disconnect the battery cable from the negative terminal or remove power fuse.
3. Remove air cleaner case (when replacing LH bulb). Refer to EM-173
(VK45) or refer to EM-17 (VQ35).
4. Remove radiator reservoir tank (when replacing RH bulb). Refer to CO-40
(VK45) or refer to CO-13 (VQ35).
5. Turn plastic cap counterclockwise and unlock it.
6. Turn bulb socket counterclockwise and unlock it.
7. Unlock retaining spring and remove bulb from headlamp.
8. Installation is the reverse order of removal. NOTE:
After installation, perform aiming adjustment. Refer to LT-27, "
Aiming Adjustment".
DAYTIME/PARKING LAMP
1. Turn lighting switch OFF.
2. Remove air cleaner case (when replacing LH bulb of VK45).
Refer to EM-173
.
3. Turn bulb socket counterclockwise and unlock it.
4. Remove bulb from its socket.
5. Installation is the reverse order of removal.
FRONT TURN SIGNAL LAMP
1. Turn lighting switch OFF.
2. Turn bulb socket counterclockwise with suitable tool and unlock it.
3. Remove bulb from its socket.
4. Installation is the reverse order of removal.
FRONT SIDE MARKER LAMP
1. Turn lighting switch OFF.
2. Turn bulb socket counterclockwise and unlock it.
3. Remove bulb from its socket.
4. Installation is the reverse order of removal.
CAUTION:Headlamp high/low beam (Xenon) : 12 V - 35 W (D2S)
PKIC9730E
Daytime/Parking lamp : 12 V - 21/5 W
PKIC9732E
Front turn signal lamp : 12 V - 21 W (amber)
SKIA6182E
Front side marker lamp : 12 V - 3.8 W
SKIA5552E
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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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OIL COOLERLU-27
< SERVICE INFORMATION > [VK45DE]
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OIL COOLER
ComponentINFOID:0000000001325832
Removal and InstallationINFOID:0000000001325833
WARNING:
Be careful not to get burn yourself, as
engine oil and engine coolant are hot.
REMOVAL
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-37, "
Changing Engine Coolant" and
EM-241, "
Component".
NOTE:
Perform this step when removing water pipe.
3. Remove oil filter. Refer to LU-26, "
Removal and Installation".
CAUTION:
Do not spill engine oil on drive belts.
4. Disconnect water hoses from oil cooler.  When removing oil cooler only, pinching water hoses near oil cooler to prevent engine coolant spilling.
CAUTION:
 Perform this step when engine is cold.
 Do not spill engine coolant on the drive belt.
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.
1. Oil filter 2. Connector bolt 3. Water hose
4. Water pipe 5. Oil cooler 6. O-ring
7. Oil pan (left side) 8. Water hose 9. Relief valve
PBIC2977E
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MA-4
< SERVICE INFORMATION >
GENERAL MAINTENANCE
UNDER THE HOOD AND VEHICLE
The maintenance items listed here should be checked periodically (e.g. each time you check the engine oil or refuel).
Accelerator pedalCheck the pedal for smooth operation and make sure the pedal does not catch
or require uneven effort. Keep the floor mats away from the pedal. —
Brakes Check that the brake does not pull the vehicle to one side when applied. —
Brake pedal and
booster Check the pedal for smooth operation and make sure it has the proper distance
under it when depressed fully. Check the brake booster function. Be sure to
keep the floor mats away from the pedal. BR-5
,
BR-14
Parking brake Check that the pedal has the proper travel and make sure that the vehicle is
held securely on a fairly steep hill when only the parking brake is applied. PB-3
Automatic transmis-
sion "Park" mecha-
nismCheck that the lock release button on the selector lever operates properly and
smoothly. On a fairly steep hill check that the vehicle is held securely with the
selector lever in the P (Park) position without applying any brakes.
—
Item
Reference page
Item Reference page
Windshield washer
fluid Check that there is adequate fluid in the tank. —
Engine coolant level Check the coolant level when the engine is cold. MA-12
, MA-19
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, de-
terioration or loose connections. —
Brake fluid level Make sure that the brake fluid level is between the “MAX” and “MIN” lines on the
reservoir. MA-32

Battery Check the fluid level in each cell. It should be between the “MAX” and “MIN”
lines. Vehicles operated in high temperatures or under severe conditions re-
quire frequent checks of the battery fluid level. SC-4
Engine drive belts
Make sure that no belt is frayed, worn, cracked or oily. MA-11, MA-19
Engine oil level Check the level on the oil level gauge after parking the vehicle on a level spot
and turning off the engine. MA-15,
MA-22
Power steering fluid
level and lines Check the level on the dipstick with the engine off. Check the lines for improper
attachment, leaks, cracks, etc.
MA-33
Exhaust system
Make sure there are no loose supports, cracks or holes. If the sound of the ex-
haust seems unusual or there is a smell of exhaust fumes, immediately locate
the trouble and correct it. MA-26
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 sub-
stances, 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
can easily accumulate. —
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 gasoline fumes are evident, check for
the cause and correct it immediately. —
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MA-12
< SERVICE INFORMATION >
ENGINE MAINTENANCE (VQ35DE ENGINE)
 When belt is replaced with a new one, adjust it to value for “New belt” to accommodate for insuffi-
cient adaptability with pulley grooves.
 When deflection or tension of belt being used exceeds “Limit”, adjust it to value for “After adjust-
ment”.
 When checking belt deflection or te nsion immediately after installation, first adjust it to the specified
value. Then, after turning crankshaft two turns or mo re, re-adjust to the specified value to avoid vari-
ation in deflection between pulleys.
 When installing belt, make sure that it is correctly engaged with pulley grooves.
 Keep engine oil, working fluid and engine coolant away from belt and pulley grooves.
 Do not twist or bend belt excessively.
ALTERNATOR AND POWER STEERING OIL PUMP BELT
1. Remove front engine undercover with power tool.
2. Loosen idler pulley lock nut (A) and adjust tension by turning adjusting bolt (B).
 For the specified belt tension, refer to EM-14, "
Checking Drive
Belts".
3. Tighten nut (A).
A/C COMPRESSOR BELT
1. Remove front engine undercover with power tool.
2. Loosen idler pulley lock nut (C) and adjust tension by turning adjusting bolt (D).  For the specified belt tension, refer to EM-14, "
Checking Drive Belts".
3. Tighten nut (C).
Changing Engine CoolantINFOID:0000000001328902
WARNING:
 To avoid being scalded, do not change en gine coolant when the engine is hot.
 Wrap a thick cloth around radiator cap and carefully remove radiator cap. First, turn radiator cap a
quarter of a turn to release built-up pressu re. Then turn radiator cap all the way.
 Be careful not to allow engine coolant to contact drive belts.
DRAINING ENGINE COOLANT
1. Remove front engine undercover with power tool.
1 : Alternator and power steering oil pump belt
2: A/C compressor belt
3 : Power steering oil pump
4 : Idler pulley
5 : Alternator
6 : Crankshaft pulley
7: A/C compressor
: 34.8 N·m (3.5 kg-m, 26 ft-lb)
JPBIA0423ZZ
: 34.8 N·m (3.5 kg-m, 26 ft-lb)
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