Infiniti M45 (Y34). Manual - part 256

 

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Infiniti M45 (Y34). Manual - part 256

 

 

PRECAUTIONS

BR-3

C

D

E

G

H

I

J

K

L

M

A

B

BR

PRECAUTIONS

PFP:00001

Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT 
BELT PRE-TENSIONER”

AFS0029V

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 Brake System

AFS000JU

Recommended fluid is brake fluid “DOT 3”.

Never reuse drained brake fluid.

Be careful not to splash brake fluid on painted areas.

To clean or wash all parts of master cylinder, disc brake caliper and wheel cylinder, use clean brake fluid.

Never use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic system.

Use flare nut wrench when removing and installing brake tube.

When installing brake piping, be sure to check torque.

Before working, turn the ignition switch OFF and disconnect the
connectors for the VDC actuator or the battery negative termi-
nal.

Burnish the brake contact surfaces after refinishing or replacing
drums or rotors, after replacing pads or linings, or if a soft pedal
occurs at very low mileage. Refer to 

BR-28, "Brake Burnishing

Procedure"

  in “Front Disc Brake” an

BR-34, "Brake Burnishing

Procedure"

  in “Rear Disc Brake”.

WARNING:

Clean brake pads and shoes with a waste cloth, then wipe with a dust collector.

SBR686C

BR-4

PREPARATION

PREPARATION

PFP:00002

Commercial Service Tools

AFS000JV

Tool name

Description

1.Flare nut crowfoot
 a:10 mm (0.39 in)/12 mm (0.47 in)
2.Torque wrench

Removing and installing each brake 
piping

S-NT360

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

BR-5

C

D

E

G

H

I

J

K

L

M

A

B

BR

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

PFP:00003

NVH Troubleshooting Chart

AFS000JW

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

X: Applicable

Reference page

BR-

2

3

BR-

2

9

BR-

2

3

BR-

2

9

BR-

2

3

BR-

2

9

BR-

2

8

BR-

3

4

BR-

2

8

BR-

3

4

N

V

H in

 PR s

e

c

ti

o

n

N

H

V

 in

 RFD s

e

c

ti

o

n

N

V

H in

 F

AX, RAX 

a

n

d

 FS

U

RSU s

e

c

ti

o

n

N

V

in

 W

T

 s

e

c

tio

n

N

V

in

 W

T

 s

e

c

tio

n

N

V

H in

 RAX s

e

c

ti

o

n

N

V

H in

 PS s

e

c

tio

n

Possible cause and
SUSPECTED PARTS

Pad

s

 -

 dam

age

d

Pad

s

 -

 unev

en w

ear

Shi

m

s dam

ag

ed

R

o

to

r i

m

bal

anc

e

Ro

to

r d

a

ma

g

e

R

o

to

r r

uno

ut

Ro

to

r d

e

fo

rm

a

ti

o

n

R

o

to

r d

e

fl

e

c

ti

o

n

Ro

to

r ru

s

t

R

o

to

r t

h

ickn

ess 

va

ri

at

io

n

D

rum

 ou

of

 r

oun

d

PROPELL

E

R SHAF

T

DIFFERENTIAL

AXL

E AND 

SUSPENSION

TIRES

ROAD W

H

EEL

D

R

IV

E

 SH

AF

T

STEERING

Symptom

BRAKE

Noise

×

×

×

×

×

×

×

×

×

×

Shake

×

×

×

×

×

×

×

Shimmy, Judder

×

×

×

×

×

×

×

×

×

×

×

BR-6

BRAKE PEDAL

BRAKE PEDAL

PFP:46501

Inspection and Adjustment

AFS000JX

PLAY AND CLEARANCE BETWEEN THE BRAKE PEDAL AND FLOOR PANEL WITH PEDAL 
DEPRESSED

1.

Check the brake pedal free height from the dash lower panel.

2.

Adjust the height referring to the following specifications.

SBR453DA

H

: Brake pedal height (from dash lower panel 
top surface)

 174 - 184 mm (6.85 - 7.24 in)

D

: Depressed pedal height [under a force of 490 
N (50 kg, 110 lb) with the engine running]

 90 mm (3.54 in) or more

C

1

  or C

2

: Clearance between the stopper rubber and 
the threaded end of the stop lamp switch and 
brake switch (or ASCD cancel switch)

 0.74 - 1.96 mm (0.0291 - 0.0772 in)

A

: Pedal play

 3 - 11 mm (0.12 - 0.43 in)

 

 

 

 

 

 

 

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