Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti M45 Y34 2003-2004 Approved M45-Y34-2004 br
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BRAKE SYSTEM
F BRAKES
A
SECTION
BRAKE SYSTEM
BR B
C
D
E
CONTENTS
PRECAUTIONS ......................................................... 3. INSTALLATION .................................................. 13 . BR
Precautions for Supplemental Restraint System Disassembly and Assembly ................................... 14 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- DISASSEMBLY .................................................. 14 .
SIONER" ................................................................. 3
. INSPECTION AFTER DISASSEMBLY ............... 16 . G
Precautions for Brake System ................................. 3 . ASSEMBLY ........................................................ 17.
PREPARATION .......................................................... 4
. BRAKE BOOSTER .................................................. 20 .
Commercial Service Tools ....................................... 4 . On-Vehicle Service ................................................ 20.
H
NOISE, VIBRATION AND HARSHNESS (NVH) OPERATING CHECK ......................................... 20 .
TROUBLESHOOTING ............................................... 5 . AIRTIGHT CHECK ............................................. 20 .
NVH Troubleshooting Chart .................................... 5 . Removal and Installation ....................................... 20 .
BRAKE PEDAL ......................................................... 6. REMOVAL .......................................................... 20
. I
Inspection and Adjustment ...................................... 6 . INSPECTION AFTER REMOVAL ...................... 21 .
PLAY AND CLEARANCE BETWEEN THE INSTALLATION .................................................. 21 .
BRAKE PEDAL AND FLOOR PANEL WITH VACUUM LINES ...................................................... 22 . J
PEDAL DEPRESSED .......................................... 6 . Removal and Installation ....................................... 22 .
ADJUSTMENT ..................................................... 7 . Inspection .............................................................. 22
.
Removal and Installation ......................................... 7 . VISUAL INSPECTION ........................................ 22 .
K
COMPONENT PARTS DRAWING ....................... 7 . CHECK VALVE INSPECTION ............................ 22 .
REMOVAL ............................................................ 8
. FRONT DISC BRAKE .............................................. 23 .
INSPECTION AFTER REMOVAL ........................ 8 . On-Board Inspection .............................................. 23 .
INSTALLATION .................................................... 8 . PAD WEAR INSPECTION .................................. 23 . L
BRAKE FLUID ........................................................... 9
. Components (CLZ31VA Type) ............................... 23 .
Checking Brake Fluid Level .................................... 9 . Pad Replacement .................................................. 24 .
Drain and Refill ........................................................ 9
. REMOVAL .......................................................... 24
. M
Bleeding Brake System ........................................... 9 . INSTALLATION .................................................. 25 .
BRAKE PIPING AND HOSE ....................................11 . Removal and Installation of Caliper Assembly ...... 25 .
Hydraulic Circuit .....................................................11
. REMOVAL .......................................................... 25
.
Front Brake Piping and Hose .................................11 . INSTALLATION .................................................. 26 .
REMOVAL ...........................................................11
. Disassembly and Assembly of Caliper Assembly ... 26
INSTALLATION ...................................................11 . DISASSEMBLY .................................................. 26 .
Rear Brake Piping and Hose ................................. 12 . CALIPER INSPECTION ..................................... 26 .
REMOVAL .......................................................... 12
. ASSEMBLY ........................................................ 27.
INSTALLATION .................................................. 12 . DISC ROTOR INSPECTION .............................. 28 .
Inspection .............................................................. 12
. Brake Burnishing Procedure .................................. 28 .
BRAKE MASTER CYLINDER ................................. 13 . REAR DISC BRAKE ................................................ 29 .
Components .......................................................... 13
. On-Board Inspection .............................................. 29 .
Removal and Installation ....................................... 13 . PAD WEAR INSPECTION .................................. 29 .
REMOVAL .......................................................... 13
. Component (AD14VD Type) .................................. 29 .
Pad Replacement .................................................. 30 .
REMOVAL .......................................................... 30
.
Revision: 2004 October BR-1 2004 M45
INSTALLATION ................................................... 30
. DISC ROTOR INSPECTION ..............................34 .
Removal and Installation of Caliper Assembly ...... 31 . Brake Burnishing Procedure ..................................34 .
REMOVAL .......................................................... 31
. SERVICE DATA AND SPECIFICATIONS (SDS) .....35 .
INSTALLATION ................................................... 31
. General Specifications ...........................................35.
Disassembly and Assembly of Caliper Assembly ... 31 Brake Pedal ...........................................................35
.
DISASSEMBLY .................................................. 31
. Check Valve ...........................................................35
.
INSPECTION AFTER DISASSEMBLY ............... 33 . Brake Booster ........................................................35
.
ASSEMBLY ........................................................ 33
. Front Disc Brake ....................................................35
.
Rear Disc Brake .....................................................36
.
Revision: 2004 October BR-2 2004 M45
PRECAUTIONS
PRECAUTIONS PFP:00001
A
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 B
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 C
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: D
q 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. E
q 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. BR
q 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.
G
Precautions for Brake System AFS000JU
q Recommended fluid is brake fluid "DOT 3".
H
q Never reuse drained brake fluid.
q Be careful not to splash brake fluid on painted areas.
q To clean or wash all parts of master cylinder, disc brake caliper and wheel cylinder, use clean brake fluid. I
q Never use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic system.
q Use flare nut wrench when removing and installing brake tube.
q When installing brake piping, be sure to check torque. J
q Before working, turn the ignition switch OFF and disconnect the
connectors for the VDC actuator or the battery negative termi-
nal. K
q 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 L
Procedure" in "Front Disc Brake" and BR-34, "Brake Burnishing
Procedure" in "Rear Disc Brake".
SBR686C
WARNING:
q Clean brake pads and shoes with a waste cloth, then wipe with a dust collector. M
Revision: 2004 October BR-3 2004 M45
PREPARATION
PREPARATION PFP:00002
Commercial Service Tools AFS000JV
Tool name Description
1.Flare nut crowfoot Removing and installing each brake
a:10 mm (0.39 in)/12 mm (0.47 in) piping
2.Torque wrench
S-NT360
Revision: 2004 October BR-4 2004 M45
Symptom
X: Applicable
Reference page
BRAKE
Possible cause and
SUSPECTED PARTS
Revision: 2004 October
Noise
Shake
Shimmy, Judder
NVH Troubleshooting Chart
Pads - damaged BR-23, BR-29
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