2008 INFINITI FX35 service

RSU-1
SUSPENSION
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SECTION RSU
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O PCONTENTS
REAR SUSPENSION
SERVICE INFORMATION .. ..........................2
PRECAUTIONS .............................................. .....2
Cautions .............................................................. ......2
PREPARATION ...................................................3
Special Service Tool ........................................... ......3
Commercial Service Tool ..........................................3
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING .............................
4
NVH Troubleshooting Chart ................................ ......4
REAR SUSPENSION ASSEMBLY .....................5
On-Vehicle Inspection and Service ..................... ......5
Wheel AlignmentInspection .......................................5
Removal and Installation ...........................................6
SHOCK ABSORBER ..........................................9
Removal and Installation ..................................... ......9
Disassembly and Assembly ......................................9
SUSPENSION ARM ..........................................11
Removal and Installation ..................................... ....11
RADIUS ROD ................................... .................13
Removal and Installation ..................................... ....13
FRONT LOWER LINK .......................................14
Removal and Installation .........................................14
REAR LOWER LINK & COIL SPRING .............15
Removal and Installation .........................................15
STABILIZER BAR .............................................16
Removal and Installation .........................................16
REAR SUSPENSION MEMBER .......................17
Removal and Installation ..................................... ....17
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
18
Wheel Alignment (Unladen*) ...................................18
Ball Joint ..................................................................18
Wheelarch Height (Unladen*) ..................................18
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RSU-2
< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
CautionsINFOID:0000000001327548
• When installing rubber bushings, final tightening must be carried out under unladen conditions with tires on
level ground. Oil will shorten the life of rubber bushings. Be sure to wipe off any spilled oil.
 Unladen conditions means that fuel, engine coolant and lubricant are full. Spare tire, jack, hand tools and
mats are in designated positions.
 After servicing suspension parts, be sure to check wheel alignment.
 Caulking nuts are not reusable. Always use new ones w hen installing. Since new caulking nuts are pre-oiled,
tighten as they are.
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PREPARATIONRSU-3
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PREPARATION
Special Service ToolINFOID:0000000001327549
The actual shapes of Kent-Moore tools may differ fr om those of special service tools illustrated here.
Commercial Service ToolINFOID:0000000001327550
Tool number
(Kent-Moore No.)
Tool name Description
ST3127S000
(See J −25765-A)
Preload gauge Measuring rotating torque of ball joint
ZZA0806D
Tool name
Description
Power tool Loosening bolts and nuts
PBIC0190E
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RSU-4
< SERVICE INFORMATION >
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000001327551
Use chart below to help you find the cause of the symp tom. If necessary, repair or replace these parts.
×: ApplicableReference page
RSU-6RSU-9—
—
—
RSU-6FSU-5RSU-16
NVH in PR section
NVH in RFD section
NVH in RAX and RSU section
NVH in WT section
NVH in WT section
NVH in RAX section
NVH in BR sectionNVH in PS section
Possible cause and SUSPECTED PARTS
Improper installation, looseness
Shock absorber deformation, damage or deflection
Bushing or mounting deterioration
Parts interference
Spring fatigue
Suspension looseness
Incorrect wheel alignment
Stabilizer bar fatigue
PROPELLER SHAFT
DIFFERENTIAL
REAR AXLE AND REAR SUSPENSION
TIRE
ROAD WHEEL
DRIVE SHAFT
BRAKE
STEERING
Symptom REAR SUSPENSION Noise
×××××× ××××××××
Shake ×××× × × ××××××
Vibration ××××× × ×× × ×
Shimmy ×××× × ××× ××
Judder ××× ××× ××
Poor quality ride or
handling ××××× ×× ×××
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REAR SUSPENSION ASSEMBLYRSU-5
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REAR SUSPENSION ASSEMBLY
On-Vehicle Inspection and ServiceINFOID:0000000001327552
Make sure the mounting conditions (looseness, ba ck lash) of each component and component status (wear,
damage) are normal.
INSPECTION OF BALL JOINT END PLAY
Measure axial end play by installing and moving up/down with an
iron pry bar or something similar between suspension arm and axle.
CAUTION:
Be careful not to damage ball joint boot.
SHOCK ABSORBER INSPECTION
Check shock absorber for oil leakage, damage and replace if necessary.
Wheel AlignmentInspectionINFOID:0000000001327553
DESCRIPTION
 Measure wheel alignment under unladen conditions. “U nladen conditions” means that fuel, engine coolant,
and lubricant are full. Spare tire, jack, hand tools and mats in designated positions.
PRELIMINARY INSPECTION
 Check tires for improper air pressure and wear.
 Check road wheels for runout.
 Check wheel bearing axial end play.
 Check ball joint axial end play of suspension arm.
 Check shock absorber operation.
 Check each mounting point of axle and suspension for looseness and deformation.
 Check each link, arm and member for cracks, deformation, and other damage.
 Check vehicle posture.
GENERAL INFORMATION AND RECOMMENDATIONS
 A four-wheel thrust alignment should be performed.
- This type of alignment is recomm ended for any NISSAN/INFINITI vehicle.
- The four-wheel “thrust” process helps ensure that t he vehicle is properly aligned and the steering wheel is
centered.
- The alignment rack itself should be capable of accepting any NISSAN/INFINITI vehicle.
- The rack should be checked to ensure that it is level.
 Make sure the machine is properly calibrated.
- Your alignment equipment should be regularly ca librated in order to give correct information.
- Check with the manufacturer of your specific equi pment for their recommended Service/Calibration Sched-
ule.
THE ALIGNMENT PROCESS
IMPORTANT:
Use only the alignment specificati ons listed in this Service Manual.
 When displaying the alignment settings, many alignment machines use “indicators”: (Green/red, plus or
minus, Go/No Go). Do NOT use these indicators.
- The alignment specifications programmed into your machine that operate these indicators may not be cor-
rect.
- This may result in an ERROR.
 Some newer alignment machines are equipped with an optional “Rolling Compensation” method to “com-
pensate” the sensors (alignment targets or head units). DO NOT use this “Rolling Compensation”
method. Standard value
Axial end play : 0 mm (0 in)
SEIA0245J
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RSU-6
< SERVICE INFORMATION >
REAR SUSPENSION ASSEMBLY
- Use the “Jacking Compensation Method”. After installing the alignment targets or head units, raise the vehi-
cle and rotate the wheels 1/2 turn both ways.
- See Instructions in the alignment machine you're using for more information on this.
CAMBER INSPECTION
 Measure camber of both right and left wheels with a suitable align-
ment gauge and adjust in accordance with the following proce-
dures.
If outside the standard value, adjust with adjusting bolt in front
lower link.
NOTE:
After adjusting camber, be sure to check toe-in.
TOE-IN
If toe-in is not within the specif ication, adjust with adjusting bolt in
rear lower link.
CAUTION:
Be sure to adjust equally on RH and LH side with adjusting bolt.
If toe-in is not still within the specification, inspect and replace any
damaged or worn rear suspension parts.
Removal and InstallationINFOID:0000000001327554
COMPONENTS
Standard value
Camber : Refer to RSU-18
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SRA096A
SEIA0318E
SEIA0319E
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REAR SUSPENSION ASSEMBLYRSU-7
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1. Bushing 2. Mounting seal 3. Mounting seal bracket
4. Distance tube 5. Bound bumper cover 6. Bound bumper
7. Shock absorber 8. Upper seat 9. Coil spring
10. Rubber seat 11. Rear lower link 12. Axle assembly
13. Cotter pin 14. Radius rod 15. Front lower link protector
16. Front lower link 17. Stopper rubber 18. Shock absorber assembly
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RSU-8
< SERVICE INFORMATION >
REAR SUSPENSION ASSEMBLY
REMOVAL
1. Remove tires from vehicle with power tool.
2. Remove brake caliper with power tool. Hang it in a place where it will not interfere with work. Refer to BR-
24.
NOTE:
Avoid depressing brake pedal while brake caliper is removed.
3. Remove wheel sensor from rear final drive, t hen remove wheel sensor harness from rear suspension
member.
4. Remove height sensor harness from rear suspension member (if equipped).
5. Remove center muffler and main muffler. Refer to EX-3, "
Component".
6. Remove stabilizer bar. Refer to RSU-16, "
Removal and Installation".
7. Remove rear propeller shaft. Refer to PR-9, "
Removal and Installation".
8. Separate attachments between parking brake cable and vehicle and rear suspension member.
9. Remove rear lower link and coil spring. Refer to RSU-14, "
Removal and Installation".
10. Remove fixing bolt in lower side of shock absorber with power tool.
11. Set jack under rear final drive.
12. Remove fixing bolts and nuts of tunnel stay and mem ber stay with power tool, then remove those parts
from vehicle.
13. Remove fixing bolts and nuts of rear pin stay with pow er tool and then remove rear pin stay from vehicle.
14. Gradually lowering jack, remove rear suspension assembly.
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.
 Perform final tightening of installation position of links (rubber bushing) under unladen conditions with tires on level ground. Check wheel alignment. Refer to RSU-5, "
Wheel AlignmentInspection".
 After adjusting wheel alignment, adjust neutral position of steering angle sensor. Refer to BRC-8, "
Adjust-
ment of Steering Angle Sensor Neutral Position".
19. Suspension arm 20. Stabilizer connecting rod mounting
bracket21. Stabilizer connecting rod
22. Rear pin stay 23. Rear suspension member 24. Stabilizer bar
25. Stabilizer bushing 26. Stabilizer clamp 27. Member stay
28. Tunnel stay A: With height sensor B: Without height sensor
Refer to GI-8, "
Component", for the symbols in the figure.
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