service INFINITI FX35 2007 Service Manual

BRC-60
[VDC/TCS/ABS]
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)
Revision: 2006 July 2007 FX35/FX45
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)PFP:47660
Removal and InstallationNFS000O6
REMOVAL
1. Disconnect ABS actuator and electric unit (control unit) connector.
2. Loosen brake tube flare nuts, then remove brake tubes from ABS actuator and electric unit (control unit).
3. Remove LH side fender protector. Refer to EI-24, "
FENDER PROTECTOR" .
4. Remove ABS actuator and electric unit (control unit) mounting nuts.
5. Remove ABS actuator and electric unit (control unit) from vehicle.
CAUTION:
Be careful of the following when removing ABS actuator and electric unit (control unit).

If the part number on the part number label (pasted on actuator upper surface) is the same, ABS
actuator and electric unit (control unit) can not be used on another vehicle.
If it is used on another vehicle, ABS warning lamp, SLIP indicator lamp and VDC OFF indicator
lamp may turn ON or VDC/TCS/ABS may not operate normally.
When replacing ABS actuator and electric unit (control unit), must use new service parts.

Before servicing, disconnect battery cables.

To remove brake tube, use a flare nut torque wrench to prevent flare nuts and brake tube from
being damaged. To install, use a flare nut torque wrench (commercial service tool) and tighten to
the specified torque.

Do not apply excessive impact to actuator, such as dropping it.

Do not remove and install ABS actuator and electric unit (control unit) by holding harness.
PFIA0601E

ACTUATOR AND ELECTRIC UNIT (ASSEMBLY) BRC-61
[VDC/TCS/ABS]
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BRC
Revision: 2006 July 2007 FX35/FX45
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
Be careful of the following when installing ABS actuator and electric unit (control unit).

Tighten the mounting bolts and nuts to the specified torque.

After the work, bleed air from brake piping. Refer to BR-10, "Bleeding Brake System" .

After installing vehicle harness connector in the actuator, make sure connector is securely locked.

When replacing ABS actuator and electric unit (control unit), calibrate steering angle sensor neu-
tral position and decel G sensor. Refer to BRC-6, "
ON-VEHICLE SERVICE" .

CO-1
ENGINE COOLING SYSTEM
B ENGINE
CONTENTS
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SECTION
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CO
Revision: 2006 July 2007 FX35/FX45
ENGINE COOLING SYSTEM
VQ35DE
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 3
Precautions for Liquid Gasket ............................. ..... 3
REMOVAL OF LIQUID GASKET SEALING ..... ..... 3
LIQUID GASKET APPLICATION PROCEDURE ..... 3
PREPARATION ...................................................... ..... 5
Special Service Tools .......................................... ..... 5
Commercial Service Tools ................................... ..... 6
OVERHEATING CAUSE ANALYSIS ..................... ..... 7
Troubleshooting Chart ......................................... ..... 7
COOLING SYSTEM ............................................... ..... 9
Cooling Circuit ..................................................... ..... 9
System Chart ...................................................... ... 10
ENGINE COOLANT ............................................... ....11
Inspection ............................................................ .... 11
LEVEL CHECK ................................................ .... 11
LEAK CHECK .................................................. .... 11
Changing Engine Coolant ................................... .... 11
DRAINING ENGINE COOLANT ...................... .... 11
REFILLING ENGINE COOLANT ..................... ... 12
FLUSHING COOLING SYSTEM ...................... ... 13
RADIATOR ............................................................. ... 14
Components ........................................................ ... 14
Removal and Installation ..................................... ... 14
REMOVAL ........................................................ ... 14
INSTALLATION ................................................ ... 15
INSPECTION AFTER INSTALLATION ............ ... 15
Checking Radiator Cap ....................................... ... 15
Checking Radiator ............................................... ... 16
RADIATOR (ALUMINUM TYPE) ........................... ... 17
Components ........................................................ ... 17
Disassembly and Assembly ................................ ... 17
PREPARATION ................................................ ... 17
DISASSEMBLY ................................................ ... 17
ASSEMBLY ...................................................... ... 18
INSPECTION ................................................... ... 20 COOLING FAN .......................................................
... 21
Components ........................................................ ... 21
Removal and Installation ..................................... ... 21
REMOVAL ........................................................ ... 21
INSTALLATION ................................................ ... 21
INSPECTION AFTER INSTALLATION ............. ... 21
Disassembly and Assembly ................................. ... 21
DISASSEMBLY ................................................ ... 21
INSPECTION AFTER DISASSEMBLY ............. ... 21
ASSEMBLY ...................................................... ... 21
WATER PUMP ....................................................... ... 22
Components ........................................................ ... 22
Removal and Installation ..................................... ... 22
REMOVAL ........................................................ ... 22
INSPECTION AFTER REMOVAL .................... ... 24
INSTALLATION ................................................ ... 24
INSPECTION AFTER INSTALLATION ............. ... 26
WATER INLET AND THERMOSTAT ASSEMBLY . ... 27
Components ........................................................ ... 27
Removal and Installation ..................................... ... 27
REMOVAL ........................................................ ... 27
INSPECTION AFTER REMOVAL .................... ... 28
INSTALLATION ................................................ ... 28
INSPECTION AFTER INSTALLATION ............. ... 28
WATER OUTLET AND WATER PIPING ................ ... 29
Components ........................................................ ... 29
Removal and Installation ..................................... ... 29
REMOVAL ........................................................ ... 29
INSTALLATION ................................................ ... 30
INSPECTION AFTER INSTALLATION ............. ... 30
SERVICE DATA AND SPECIFICATIONS (SDS) ... ... 31
Standard and Limit ............................................... ... 31
ENGINE COOLANT CAPACITY (APPROXI-
MATE) ............................................................... ... 31
RADIATOR ....................................................... ... 31
THERMOSTAT ................................................. ... 31

CO-2Revision: 2006 July 2007 FX35/FX45
VK45DE
PRECAUTIONS ......................................................... 32
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .............................................................. ... 32
PREPARATION ...................................................... ... 33
Special Service Tools .......................................... ... 33
Commercial Service Tools ................................... ... 33
OVERHEATING CAUSE ANALYSIS ..................... ... 34
Troubleshooting Chart ......................................... ... 34
COOLING SYSTEM ............................................... ... 36
Cooling Circuit ..................................................... ... 36
System Chart ....................................................... ... 37
ENGINE COOLANT ............................................... ... 38
Inspection ............................................................ ... 38
LEVEL CHECK ................................................. ... 38
LEAK CHECK ................................................... ... 38
Changing Engine Coolant .................................... ... 38
DRAINING ENGINE COOLANT ....................... ... 38
REFILLING ENGINE COOLANT ...................... ... 39
FLUSHING COOLING SYSTEM ...................... ... 40
RADIATOR ............................................................. ... 41
Components ........................................................ ... 41
Removal and Installation ..................................... ... 41
REMOVAL ........................................................ ... 41
INSTALLATION ................................................. ... 43
INSPECTION AFTER INSTALLATION ............. ... 43
Checking Radiator Cap ....................................... ... 43
Checking Radiator ............................................... ... 44
RADIATOR (ALUMINUM TYPE) ............................ ... 45
Components ........................................................ ... 45
Disassembly and Assembly ................................. ... 45
PREPARATION ................................................ ... 45
DISASSEMBLY ................................................ ... 45
ASSEMBLY ...................................................... ... 46
INSPECTION .................................................... ... 48 COOLING FAN .......................................................
... 49
Components (Crankshaft Driven type) ................. ... 49
Removal and Installation ...................................... ... 49
REMOVAL ......................................................... ... 49
INSPECTION AFTER REMOVAL ..................... ... 49
INSTALLATION ................................................. ... 49
Components (Motor Driven Type) ........................ ... 50
Removal and Installation ...................................... ... 50
REMOVAL ......................................................... ... 50
INSTALLATION ................................................. ... 50
Disassembly and Assembly (Motor Driven Type) ... 50 DISASSEMBLY ................................................. ... 50
INSPECTION AFTER DISASSEMBLY ............. ... 50
ASSEMBLY ....................................................... ... 50
WATER PUMP ........................................................ ... 51
Components ......................................................... ... 51
Removal and Installation ...................................... ... 51
REMOVAL ......................................................... ... 51
INSPECTION AFTER REMOVAL ..................... ... 52
INSTALLATION ................................................. ... 52
INSPECTION AFTER INSTALLATION ............. ... 52
THERMOSTAT AND WATER CONTROL VALVE .. ... 53
Components ......................................................... ... 53
Removal and Installation ...................................... ... 54
REMOVAL ......................................................... ... 54
INSPECTION AFTER REMOVAL ..................... ... 54
INSTALLATION ................................................. ... 54
INSPECTION AFTER INSTALLATION ............. ... 55
SERVICE DATA AND SPECIFICATIONS (SDS) ... ... 56
Standard and Limit ............................................... ... 56
ENGINE COOLANT CAPACITY (APPROXI-
MATE) ............................................................... ... 56
RADIATOR ........................................................ ... 56
THERMOSTAT .................................................. ... 56
WATER CONTROL VALVE ............................... ... 56

PRECAUTIONS CO-3
[VQ35DE]
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Revision: 2006 July 2007 FX35/FX45
[VQ35DE]PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NBS003JN
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity 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 whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:

To avoid rendering the SRS inoperative, 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 per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for Liquid GasketNBS003JO
REMOVAL OF LIQUID GASKET SEALING

After removing mounting nuts and bolts, separate the mating
surface using the seal cutter (SST) and remove old liquid gasket
sealing.
CAUTION:
Be careful not to damage the mating surfaces.

Tap the seal cutter to insert it, and then slide it by tapping on the
side as shown in the figure.

In areas where seal cutter is difficult to use, use a plastic ham-
mer to lightly tap the parts, to remove it.
CAUTION:
If for some unavoidable reason tool such as a screwdriver
is used, be careful not to damage the mating surfaces.
LIQUID GASKET APPLICATION PROCEDURE
1. Using a scraper, remove old liquid gasket adhering to the liquid
gasket application surface and the mating surface.

Remove liquid gasket completely from the groove of the liquid
gasket application surface, mounting bolts, and bolt holes.
2. Wipe the liquid gasket application surface and the mating sur- face with white gasoline (lighting and heating use) to remove
adhering moisture, grease and foreign materials.
PBIC0002E
PBIC0003E

CO-4
[VQ35DE]
PRECAUTIONS
Revision: 2006 July 2007 FX35/FX45
3. Attach liquid gasket tube to the tube presser [SST: WS39930000
(—)].
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-48, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS" .
4. Apply liquid gasket without breaks to the specified location with the specified dimensions.

If there is a groove for the liquid gasket application, apply liq-
uid gasket to the groove.

As for the bolt holes, normally apply liquid gasket inside the
holes. Occasionally, it should be applied outside the holes.
Make sure to read the text of service manual.

Within five minutes of liquid gasket application, install the mat-
ing component.

If liquid gasket protrudes, wipe it off immediately.

Do not retighten after mounting bolts and nuts the installation.

After 30 minutes or more have passed from the installation, fill
engine oil and engine coolant.
CAUTION:
If there are specific instructions in this manual, observe them.
EMA0622D
SEM159F

PREPARATION CO-5
[VQ35DE]
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Revision: 2006 July 2007 FX35/FX45
PREPARATIONPFP:00002
Special Service ToolsNBS003JP
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name Description
EG17650301
(J33984-A)
Radiator cap tester adapter Adapting radiator cap tester to radiator cap
and radiator filler neck
a: 28 (1.10) dia.
b: 31.4 (1.236) dia.
c: 41.3 (1.626) dia.
Unit: mm (in)
KV99103510
(—)
Radiator plate pliers A Installing radiator upper and lower tanks
KV99103520
(—)
Radiator plate pliers B Removing radiator upper and lower tanks
KV10111100
(J37228)
Seal cutter Removing chain tensioner cover and water
pump cover
WS39930000
(—)
Tube presser Pressing the tube of liquid gasket
S-NT564
S-NT224
S-NT225
NT046
S-NT052

CO-6
[VQ35DE]
PREPARATION
Revision: 2006 July 2007 FX35/FX45
Commercial Service ToolsNBS003JQ
Tool nameDescription
Power tool Loosening nuts and bolts
Radiator cap tester Checking radiator and radiator cap
PBIC0190E
PBIC1982E

ENGINE COOLANT CO-11
[VQ35DE]
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Revision: 2006 July 2007 FX35/FX45
ENGINE COOLANTPFP:KQ100
InspectionNBS003JU
LEVEL CHECK

Check if the reservoir tank engine coolant level is within the
“MIN” to “MAX” when the engine is cool.

Adjust the engine coolant level as necessary.
LEAK CHECK

To check for leaks, apply pressure to the cooling system with the
radiator cap tester (commercial service tool) and radiator cap
tester adapter (SST).
WARNING:
Do not remove radiator cap when engine is hot. Serious
burns could occur from high-pressure engine coolant
escaping from radiator.
CAUTION:
Higher test pressure than specified may cause radiator
damage.
NOTE:
In a case that engine coolant decreases, replenish radiator with engine coolant.

If anything is found, repair or replace damaged parts.
Changing Engine CoolantNBS003JV
WARNING:

To avoid being scalded, do not change engine 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 pressure. Then turn radiator cap all the way.
DRAINING ENGINE COOLANT
1. Remove front engine undercover with power tool.
2. Open radiator drain plug at the bottom of radiator, and then remove radiator cap.
When draining all of engine coolant in the system, open water drain plugs on cylinder block. Refer
to EM-124, "
DISASSEMBLY" .
3. Remove reservoir tank as necessary, and drain engine coolant and clean reservoir tank before installing.
SMA412B
Testing pressure : 157 kPa (1.6 kg/cm
2 , 23 psi)
SLC756A
SBIA0444E

RADIATOR CO-15
[VQ35DE]
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Revision: 2006 July 2007 FX35/FX45
4. Remove reservoir tank and reservoir tank bracket.
5. Disconnect A/T fluid cooler hoses from radiator.

Install blind plug to avoid leakage of A/T fluid.
6. Removal radiator hoses (upper and lower) and reservoir tank hose. CAUTION:
Be careful not to allow engine coolant to contact drive belts.
7. Remove radiator cooling fan assembly. Refer to CO-21, "
COOLING FAN" .
8. Rotate two radiator upper mount brackets 90 degrees in the direction shown in the figure, and remove them.
9. Lift up and remove radiator. CAUTION:
Do not damage or scratch A/C condenser and radiator core
when removing.
INSTALLATION
Installation is the reverse order of removal.
INSPECTION AFTER INSTALLATION

Check for leaks of engine coolant using the radiator cap tester adapter [SST: EG17650301 (J33984-A)]
and the radiator cap tester (commercial service tool). Refer to CO-11, "
LEAK CHECK" .

Start and warm up the engine. Visually make sure that there is no leaks of engine coolant and A/T fluid.
Checking Radiator CapNBS003JY

Check valve seat of radiator cap.
–Check if valve seat is swollen to the extent that the edge of the
plunger cannot be seen when watching it vertically from the top.
–Check if valve seat has no soil and damage.
SBIA0447E
SBIA0448E
PBIC2816E