abs INFINITI FX35 2008 Service Manual

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-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)
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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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SHOCK ABSORBERRSU-9
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SHOCK ABSORBER
Removal and InstallationINFOID:0000000001327555
REMOVAL
1. Remove tires from vehicle with power tool.
2. Set jack under rear lower link.
3. Remove fixing bolt in lower side of shock absorber assembly with power tool.
4. Remove fixing nuts in upper side of shock absorber assembly with power tool and remove shock absorber assembly from
vehicle.
INSPECTION AFTER REMOVAL
 Check shock absorber assembly for deformation, cracks, or damage, and replace if necessary.
 Check piston rod for damage, uneven wear, or distortion, and replace if necessary.
 Check welded and sealed areas for oil leakage, and replace if necessary.
INSTALLATION
 Refer to RSU-6, "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 shock absorber assembly lower side (rubber b\
ushing) under unladen conditions
with tires on level ground. Check wheel alignment. Refer to RSU-18, "
Wheel Alignment (Unladen*)".
 After adjusting wheel alignment, adjust neutral position of steering angle sensor. Refer to BRC-8, "
Adjust-
ment of Steering Angle Sensor Neutral Position".
Disassembly and AssemblyINFOID:0000000001327556
DISASSEMBLY
CAUTION:
Make sure piston rod on shock absorber is not damaged when removing components from shock
absorber.
1. Remove mounting seal fr om mounting seal bracket.
2. Wrap a shop cloth around lower side of shock absorber and fix it in a vise. CAUTION:
Do not set the cylindrical part of shock absorber in vise.
3. Fix piston rod with hexagon wrench, and remove piston rod lock nut.
4. Remove mounting seal bracke t, bushing, distance tube, bound
bumper cover and bound bumper from shock absorber.
INSPECTION AFTER DISASSEMBLY
Bound Bumper and Bushing
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RSU-10
< SERVICE INFORMATION >
SHOCK ABSORBER
Check bound bumper and bushing for cracks, deformation or other damage. Replace if necessary.
ASSEMBLY
 Refer to RSU-6, "Removal and Installation" for tightening torque. Assembly in the reverse order of disas-
sembly.
NOTE:
 Refer to component parts location and do not reuse non-reusable parts.
 Make sure piston rod on shock absorber is not damaged when attaching components to shock absorber.
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RSU-14
< SERVICE INFORMATION >
FRONT LOWER LINK
FRONT LOWER LINK
Removal and InstallationINFOID:0000000001327559
REMOVAL
1. Remove tires from vehicle with power tool.
2. Set jack under rear lower link.
3. Remove front lower link protector.
4. Remove shock absorber assembly from vehicle. Refer to RSU-9, "
Removal and Installation".
5. Remove fixing nut and bolt between front lower link and axle with power tool.
6. Remove fixing nut and bolt between front lower li nk and rear suspension member with power tool.
7. Remove front lower link from vehicle.
INSPECTION AFTER REMOVAL
Check front lower link and bushing for any deforma tion, crack, or damage. Replace if necessary.
INSTALLATION
 Refer to RSU-6, "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 rear suspension member and axle installation position (rubber bushing) under
unladen conditions with tires on level ground. Check wheel alignment. Refer to RSU-5, "
Wheel AlignmentIn-
spection".
 After adjusting wheel alignment, adjust neutral position of steering angle sensor. Refer to BRC-8, "
Adjust-
ment of Steering Angle Sensor Neutral Position".
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REAR LOWER LINK & COIL SPRINGRSU-15
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REAR LOWER LINK & COIL SPRING
Removal and InstallationINFOID:0000000001327560
REMOVAL
1. Remove tire with power tool.
2. Set jack under rear lower link.
3. Loosen fixing bolt and nut between rear lower link and suspension member, and then remove fixing bolt and nut between rear axle and rear lower link with power tool.
4. Slowly lower jack, then remove upper seat, co il spring and rubber seat from rear lower link.
5. Remove fixing bolt and nut between rear suspensi on member and rear lower link with power tool.
INSPECTION AFTER REMOVAL
 Check rear lower link, bushing and coil spring for deformation, cracks, and damage. Replace rear lower link
and coil spring if necessary.
INSTALLATION
 Refer to RSU-6, "Removal and Installation"for tightening torque. Install in the reverse order of removal.
CAUTION:
Refer to component parts location an d do not reuse non-reusable parts.
 Make sure upper seat is attached as shown in the figure.
NOTE:
Insert bracket tabs (3) and the inside protrusion on upper seat into
each other beforehand as shown in the figure.
 Match up rubber seat indentions and rear lower link grooves and
attach.
NOTE:
Make sure spring is not upside down. The top and bottom are indi-
cated by paint color.
 Perform final tightening of rear suspension mem ber and axle installation position (rubber bushing) under
unladen conditions with tires on level ground. Check wheel alignment. Refer to RSU-18, "
Wheel Alignment
(Unladen*)".
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REAR SUSPENSION MEMBERRSU-17
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REAR SUSPENSION MEMBER
Removal and InstallationINFOID:0000000001327562
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. Refer to BRC-52
.
4. Remove height sensor harness from rear suspension member (if equipped).
5. Remove center muffler and main muffler. Refer to EX-3
.
6. Remove stabilizer bar. Refer to RSU-16, "
Removal and Installation".
7. Remove rear drive shaft. Refer to RAX-10
.
8. Remove propeller shaft. Refer to PR-7
.
9. Remove rear final drive. Refer to RFD-16, "
Removal and Installation".
10. Separate attachments between parking brake cable and vehicle and rear suspension member. Refer to PB-4
.
11. Remove rear lower link and coil spring. Refer to RSU-14, "
Removal and Installation".
12. Remove fixing bolt in lower side of shock absorber with power tool.
13. Set jack under rear suspension member.
14. Remove fixing bolts and nuts of tunnel stay and member stay with power tool, then remove those parts from vehicle and rear suspension member.
15. Remove fixing bolts and nuts of rear pin stay with pow er tool and then remove rear pin stay from vehicle
and rear suspension member.
16. Slowly lowering jack, then remove rear suspension me mber, suspension arm, radius rod, front lower link
and axle from vehicle as a unit.
17. Remove fixing bolts and nuts with power tool, then re move suspension arm, front lower link, and radius
rod from rear suspension member.
INSPECTION AFTER REMOVAL
Check rear suspension member for deformation, cracks, and other damage and replace if necessary.
INSTALLATION
 Refer to RSU-6, "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".
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