Infiniti FX35 / FX45. Manual - part 897

RSU-4

< SERVICE INFORMATION >

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NVH Troubleshooting Chart

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Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.

×

: Applicable

Reference page

RSU-6

RSU-9

—

—

—

RSU-6

FS

U-

5

RSU-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 

section

NVH in PS 

section

Possible cause and SUSPECTED PARTS

Imp

rop

er i

ns

ta

lla

ti

o

n,

 lo

os

en

es

s

Sh

oc

k 

ab

so

rbe

r de

form

a

tio

n, 

dam

a

g

e

 or d

e

flec

ti

on

Bu

sh

in

g o

r m

o

u

n

ti

ng

 de

teri

ora

tio

n

Part

s interf

erence

S

p

rin

g

 f

a

ti

gu

e

Su

sp

en

si

on

 lo

os

en

es

s

In

co

rrec

t wh

ee

l a

lig

nm

en

t

S

tab

ili

ze

r ba

r fa

tig

u

e

PROPELLER S

H

AFT

DIFF

ERENTIAL

REAR A

X

LE 

AND REAR SUSP

ENSION

TI

RE

ROAD   

WHEEL

DRIVE SHAFT

BRAKE

STE

E

RING

Symptom

REAR SUSPENSION

Noise

×

×

×

×

×

×

×

×

×

×

×

×

×

×

Shake

×

×

×

×

×

×

×

×

×

×

×

×

Vibration

×

×

×

×

×

×

×

×

×

×

Shimmy

×

×

×

×

×

×

×

×

×

×

Judder 

×

×

×

×

×

×

×

×

Poor quality ride or 
handling

×

×

×

×

×

×

×

×

×

×

REAR SUSPENSION ASSEMBLY

RSU-5

< SERVICE INFORMATION >

C

D

F

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J

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A

B

RSU

N

O

P

REAR SUSPENSION ASSEMBLY

On-Vehicle Inspection and Service

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Make sure the mounting conditions (looseness, back 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 AlignmentInspection

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DESCRIPTION

• Measure wheel alignment under unladen conditions. “Unladen 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 recommended for any NISSAN/INFINITI vehicle.
- The four-wheel “thrust” process helps ensure that the 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 calibrated in order to give correct information.
- Check with the manufacturer of your specific equipment for their recommended Service/Calibration Sched-

ule.

THE ALIGNMENT PROCESS

IMPORTANT:
Use only the alignment specifications 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

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 specification, 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 Installation

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COMPONENTS

Standard value

Camber

: Refer to 

RSU-18

.

SRA096A

SEIA0318E

SEIA0319E

REAR SUSPENSION ASSEMBLY

RSU-7

< SERVICE INFORMATION >

C

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RSU

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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

JPEIB0031GB