strut INFINITI FX35 2008 Service Manual

BRC-6
< SERVICE INFORMATION >[VDC/TCS/ABS]
PRECAUTIONS
 If the following components are replaced with non-genui
ne components or converted, VDC OFF indicator
lamp and SLIP indicator lamp may turn on or the VDC system may not operate properly. Components
related to suspension (shock absorber, strut, spring, bushing, etc.), Tires, wheels (exclude specified size),
components related to brake (pad, rotor, caliper, etc. ), components related to engine (muffler, ECM, etc.),
components related to body reinforcement (roll bar, tower bar, etc.).
 Driving in the condition of breakage or excessive wear of suspension, tires or components related to the
brakes may cause VDC OFF indicator lamp and SLIP indicator lamp turn on, and the VDC system may not
operate properly.
 When the TCS or VDC is activated by sudden accele ration or sudden turn, some noise may occur. The
noise is a result of the normal operation of the TCS and VDC.
 When driving on roads which have extreme slopes (s uch as mountainous roads) or high banks (such as
sharp carves on a freeway), the VDC may not operate nor mally, or VDC OFF indicator lamp and SLIP indi-
cator lamp may turn on. However, this is not a malfunction, if normal operation can be resumed after restart-
ing engine.
 Sudden turns (such as spin turns, acceleration turns) , drifting, etc. When VDC function is OFF (VDC OFF
SW ON) may cause the G sensor system indicate a malf unction. However, this is not a malfunction, if nor-
mal operation can be resumed after restarting engine.
 Change 4 tires at a time. Be sure to use specified- size tires that have the same brand name and pattern.
Wheel sensor errors can be detected be self-diagnosis when tires have wide abrasion variations or the size
is different from the genuine tires.
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FRONT WHEEL HUB AND KNUCKLEFAX-5
< SERVICE INFORMATION > [2WD]
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6. Use a ball joint remover (SST) to remove steering outer socket from steering knuckle. Be careful not to damage ball joint boot.
CAUTION:
Tighten temporarily mounting nut to prevent damage to
threads and to prevent ball jo int remover (SST) from com-
ing off.
7. Remove cotter pin at transve rse link, then loosen mounting nut.
8. Use a ball joint remover (SST) to remove transverse link from steering knuckle. Be careful not to damage ball joint boot.
CAUTION:
Tighten temporarily mounting nut to prevent damage to
threads and to prevent ball jo int remover (SST) from com-
ing off.
9. Remove fixing bolts and nuts between strut assembly and steer- ing knuckle with power tool.
10. Remove steering knuckle from vehicle.
11. Remove fixing bolts between steering knuckle and wheel hub and bearing assembly with power tool.
12. Remove splash guard and wheel hub and bearing assembly from steering knuckle.
INSPECTION AFTER REMOVAL
Check for deformity, cracks and damage on each parts, replace if necessary.
Ball Joint Inspection
 Check for boot breakage, axial looseness, and torque of transverse link and steering outer socket ball joint.
Refer to FSU-13
, PS-17.
INSTALLATION
 Refer to "Removal and Installation" for tightening torque. Install in the reverse order of removal.
NOTE:
Refer to component parts location and do not reuse non-reusable parts.
 After removing/installing or replacing axle components, check wheel alignment. Refer to FSU-5, "
Wheel
Alignment Inspection".
 After adjusting wheel alignment, adjust neutral position of steering angle sensor. Refer to BRC-8, "
Adjust-
ment of Steering Angle Sensor Neutral Position".
 Check the following item after service
- Installation condition of wheel sensor harness
SDIA1434E
SDIA1435E
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FAX-12
< SERVICE INFORMATION >[AWD]
FRONT WHEEL HUB AND KNUCKLE
5. Remove cotter pin, then remove lock nut from drive shaft.
6. Remove steering outer socket and cotter pin
at steering knuckle, then loosen mounting nut.
7. Use a ball joint remover (SST) to remove steering outer socket from steering knuckle. Be careful not to damage ball joint boot.
CAUTION:
To prevent damage to threads and to prevent ball joint
remover (SST) from coming off suddenly, temporarily
tighten mounting nut.
8. Using a puller (suitable tool), remove wheel hub and bearing assembly from drive shaft. NOTE:
 When removing wheel hub and bearing assembly, do not apply an excessive angle to drive shaft joint.
Also be careful not to excessively extend slide joint.
 Do not hang over drive shaft with out support.
9. Remove wheel hub and bearing assembly fixing bolt.
10. Remove splash guard and wheel hub and bearing assembly from steering knuckle.
11. Remove strut assembly and steering knuckle fixing bolts and nuts.
12. Remove transverse link and steering knuckle fixing bolt and nut.
13. Remove steering knuckle from vehicle.
INSPECTION AFTER REMOVAL
Check for deformity, cracks and damage on each parts, replace if necessary.
Ball Joint Inspection
Check for boot breakage, axial looseness, and torque of transverse link and steering outer socket ball joint.
Refer to FSU-13
, PS-17.
INSTALLATION
CAUTION:
Be sure to replace the new differential side oil seal every removal of drive shaft. Refer to FFD-12
.
 Refer to "Removal and Installation"for tightening torque. Install in the reverse order of removal. NOTE:
Refer to component parts location and do not reuse non-reusable parts.
 To assemble disc rotor and wheel hub and bearing assembly, align the marks.
(When not using the alignment mark, refer to BR-19, "
Removal
and Installation of Brake Caliper Assembly".)
SGIA0488E
SDIA1480E
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FRONT DRIVE SHAFTFAX-13
< SERVICE INFORMATION > [AWD]
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FRONT DRIVE SHAFT
On-Vehicle InspectionINFOID:0000000001327515
 Check drive shaft mounting point and joint for looseness and other damage.
 Check boot for cracks and other damage. CAUTION:
Replace entire drive shaft assembly when noi se or vibration occur from drive shaft.
DRIVE SHAFT BOOT REPLACEMENT
1. Remove tires from vehicle with power tool.
2. Remove undercover with power tool.
3. Remove cotter pin. Then remove lock nut from drive shaft with power tool.
4. Remove wheel sensor harness fr om strut assembly. Refer to BRC-52
.
CAUTION:
Do not pull on wheel sensor harness.
5. Remove brake hose lock plate. Then remove brake hose from strut assembly. Refer to BR-10
.
6. Remove fixing bolts and nuts between strut assembly and steering knuckle with power tool.
7. Remove drive shaft from wheel hub and bearing assembly.
8. Using a puller (suitable tool), remove drive shaft from steering knuckle.
CAUTION:
When removing drive shaf t, do not apply an excessive
angle to drive shaft joint. Al so be careful not to excessively
extend slide joint.
9. Remove boot bands, and then remove boot from joint sub-assembly.
10. Screw a drive shaft puller (suitable tool) into joint sub-assembly screw part to a length of 30 mm (1.18 in) or more. Support drive
shaft with one hand and pull out joint sub-assembly with a slid-
ing hammer (suitable tool) from shaft.
CAUTION:
• Align a sliding hammer and drive shaft and remove them
by pulling firmly and uniformly.
 If joint sub-assembly cannot be pulled out, try after
removing drive shaft from vehicle.
11. Remove the circular clip from shaft.
12. Remove boot from shaft.
13. Clean the old grease on joint sub-assembly with paper towels.
SDIA0972J
SDIA0881J
SDIA2489E
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FRONT DRIVE SHAFTFAX-15
< SERVICE INFORMATION > [AWD]
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CAUTION:
 If the boot mounting length is outside the standard, it may cause breakage in the boot.
 Be careful not to touch the inside of the bo ot with a tip of a flat-bladed screwdriver.
22. Secure the large and small ends of the boot with new boot bands using the boot band crimping tool [SST: KV40107300
( – )] as shown in the figure.
NOTE:
Secure boot band so that dimension “M” meets the specification
as shown.
23. Secure joint sub-assembly and shaft, and then make sure that they are in the correct position when rotating boot. Install them
with new boot band when boot installation positions become
incorrect.
24. Insert drive shaft to wheel hub and bearing assembly, and then temporarily tighten hub lock nut.
25. Install nuts and bolts to steering knuckle and strut.
26. Install break hose bracket to strut assembly. BR-10, "
Removal and Installation of Front Brake Tube and
Brake Hose".
27. Install wheel sensor to strut assembly. Refer to BRC-52
.
28. Tighten the hub lock nut to the specified torque.
29. Install cotter pin.
30. Install tires to vehicle.
Removal and Installation (Left Side)INFOID:0000000001327516
COMPONENTS
REMOVAL
1. Remove tires from vehicle with power tool. Boot installation length (L) : 136 mm (5.35 in)
RAC1133D
Dimension “M” : 2.0 – 3.0 mm (0.079 – 0.118 in)
DSF0047D
1. Cotter pin 2. Washer 3. Drive shaft
Refer to
GI-8, "
Component", for the symbols in the figure.
PDIA1218E
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FAX-16
< SERVICE INFORMATION >[AWD]
FRONT DRIVE SHAFT
2. Remove undercover with power tool.
3. Remove cotter pin. Then remove lock nut from drive shaft with power tool.
4. Remove wheel sensor harness from strut assembly. Refer to
BRC-52
.
CAUTION:
Do not pull on wheel sensor harness.
5. Remove brake hose lock plate. Then remove brake hose from strut assembly. Refer to BR-10
.
6. Remove fixing bolts and nuts between strut assembly and steering knuckle with power tool.
7. Using a puller (suitable tool), remove drive shaft from steering knuckle.
CAUTION:
When removing drive shaft, do not apply an excessive
angle to drive shaft joint. Al so be careful not to excessively
extend slide joint.
8. Remove fixing bolt of front final drive side assembly drive shaft with power tool, then remove drive shaft from vehicle.
INSPECTION AFTER REMOVAL
 Move joint up/down, left /right, and in the axial direct ion. Check for any rough movement or significant loose-
ness.
 Check boot for cracks or other damage, and also for grease leak- age.
 If a trouble is found, disassemble drive shaft, and then replace with
new one.
INSTALLATION
 Refer to "Removal and Installation (Left Side)" for tight ening torque. Install in the reverse order of removal.
NOTE:
Refer to component parts location and do not reuse non-reusable parts.
 Check the following item after service.
- Installation condition of wheel sensor harness
Removal and Installation (Right Side)INFOID:0000000001327517
COMPONENTS
SDIA0972J
SDIA1046J
1. Cotter pin 2. Washer 3. Drive shaft
Refer to GI-8, "
Component", for the symbols in the figure.
PDIA1219E
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FRONT DRIVE SHAFTFAX-17
< SERVICE INFORMATION > [AWD]
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Removal
1. Remove tires from vehicle with power tool.
2. Remove undercover with power tool.
3. Remove cotter pin. Then remove lock nut from drive shaft with power tool.
4. Remove wheel sensor harness fr om strut assembly. Refer to BRC-52
.
CAUTION:
Do not pull on wheel sensor harness.
5. Remove brake hose lock prate. Then remove brake hose from strut assembly. Refer to BR-10
.
6. Remove fixing bolts and nuts between strut assembly and steering knuckle with power tool.
7. Using a puller (suitable tool), remove drive shaft from steering knuckle.
CAUTION:
When removing drive shaf t, do not apply an excessive
angle to drive shaft joint. Al so be careful not to excessively
extend slide joint.
8. Pry off drive shaft from front final drive assembly side as shown in the figure.
INSPECTION AFTER REMOVAL
 Move joint up/down, left/right, and in the axial directi on. Check for any rough movement or significant loose-
ness.
 Check boot for cracks or other damage, and also for grease leak- age.
 If a trouble is found, disassemble drive shaft, and then replace with
new one.
INSTALLATION
 Refer to "Removal and installation (Right Side)" for ti ghtening torque. Install in the reverse order of removal.
NOTE:
Refer to component parts location and do not reuse non-reusable parts.
 Check the following item after service.
- Installation condition of wheel sensor harness.
SDIA0972J
SDIA1489E
SFA108A
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FSU-1
SUSPENSION
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FRONT SUSPENSION
SERVICE INFORMATION .. ..........................2
PRECAUTIONS .............................................. .....2
Caution ................................................................ ......2
PREPARATION ...................................................3
Special Service Tool ........................................... ......3
Commercial Service Tool ..........................................3
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING .............................
4
NVH Troubleshooting Chart ................................ ......4
FRONT SUSPENSION ASSEMBLY ...................5
On-Vehicle Inspection and Service ..................... ......5
Wheel Alignment Inspection ......................................5
Removal and Installation ...........................................6
COIL SPRING AND STRUT ..............................10
Removal and Installation ..................................... ....10
Disassembly and Assembly .....................................11
TRANSVERSE LINK .........................................13
Removal and Installation ..................................... ....13
STABILIZER BAR .............................................15
Removal and Installation .........................................15
FRONT SUSPENSION MEMBER .....................16
Removal and Installation .........................................16
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
17
Wheel Alignment (Unladen*) ...................................17
Ball Joint ..................................................................17
Wheelarch Height (Unladen*) ..................................17
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PREPARATIONFSU-3
< SERVICE INFORMATION >
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PREPARATION
Special Service ToolINFOID:0000000001327534
The actual shapes of Kent-Moore tools may differ fr om those of special service tools illustrated here.
Commercial Service ToolINFOID:0000000001327535
Tool number
(Kent-Moore No.)
Tool name Description
HT72520000
(J-25730-A)
Ball joint remover
a: 33 mm (1.30 in)
b: 50 mm (1.97 in)
r: 11.5 mm (0.453 in)  Removing steering outer socket
 Removing transverse link
ST35652000
( — )
Strut attachment Disassembling and assembling strut
ST3127 S000
(See J-25765-A)
Preload gauge Measuring rotating torque of ball joint
NT546
ZZA0807D
ZZA0806D
Tool name
Description
Spring compressor Removing coil spring
Power tool Loosening bolts and nuts
S-NT717
PBIC0190E
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FSU-4
< SERVICE INFORMATION >
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000001327536
Use chart below to help you find the cause of the symp tom. If necessary, repair or replace these parts.
×: ApplicableReference page
FSU-6FSU-11
—
—
—
FSU-6FSU-5FSU-15
NVH in PR section
NVH in RFD section
NVH in FAX and FSU section
NVH in WT section
NVH in WT section
NVH in FAX section NVH in BR sectionNVH in PS section
Possible cause and SUSPECTED PARTS
Improper installation, looseness
Strut deformation, damage or deflection
Bushing or mounting deterioration
Parts interference
Spring fatigue
Suspension looseness
Incorrect wheel alignment
Stabilizer bar fatigue
PROPELLER SHAFT (For AWD models)
DIFFERENTIAL (For AWD models)
FRONT AXLE AND FRONT SUSPENSION
TIRE
ROAD WHEEL
DRIVE SHAFT (For AWD models)
BRAKE
STEERING
Symptom FRONT SUSPENSION Noise
××××× × ××× ×××××
Shake ×××× × × × ×××××
Vibration ××××× × ×× × ×
Shimmy ×××× × ××× ××
Judder ××× ××× ××
Poor quality ride or han-
dling ×× × × × ×× × × ×
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