Infiniti G37 Coupe. Manual — part 241
BR-2
BRAKE BOOSTER PRESSURE SENSOR . ...
Exploded View . . . . . . . . . . . . . ....
Removal and Installation . . . . . . . . . ....
Inspection . . . . . . . . . . . . . . . ...
VACUUM LINES . . . . . . . . . . . .
Exploded View . . . . . . . . . . . . . ....
Removal and Installation . . . . . . . . . ....
Inspection . . . . . . . . . . . . . . . ...
FRONT DISC BRAKE . . . . . . . . . .
BRAKE PAD (1 PISTON TYPE) . . . . . . . ...
BRAKE PAD (1 PISTON TYPE) : Exploded View ...
BRAKE PAD (1 PISTON TYPE) : Removal and In-
stallation . . . . . . . . . . . . . . . . .
BRAKE PAD (1 PISTON TYPE) : Inspection and
Adjustment . . . . . . . . . . . . . . . ..
BRAKE PAD (4 PISTON TYPE) . . . . . . . ...
BRAKE PAD (4 PISTON TYPE) : Exploded View ...
BRAKE PAD (4 PISTON TYPE) : Removal and In-
stallation . . . . . . . . . . . . . . . . .
BRAKE PAD (4 PISTON TYPE) : Inspection and
Adjustment . . . . . . . . . . . . . . . ..
BRAKE CALIPER ASSEMBLY (1 PISTON TYPE) ...
BRAKE CALIPER ASSEMBLY (1 PISTON TYPE)
: Exploded View . . . . . . . . . . . . . ..
BRAKE CALIPER ASSEMBLY (1 PISTON TYPE)
: Removal and Installation . . . . . . . . . ..
BRAKE CALIPER ASSEMBLY (1 PISTON TYPE)
: Disassembly and Assembly . . . . . . . . ..
BRAKE CALIPER ASSEMBLY (1 PISTON TYPE)
: Inspection and Adjustment . . . . . . . . ...
BRAKE CALIPER ASSEMBLY (4 PISTON TYPE) ...
BRAKE CALIPER ASSEMBLY (4 PISTON TYPE)
: Exploded View . . . . . . . . . . . . . ..
BRAKE CALIPER ASSEMBLY (4 PISTON TYPE)
: Removal and Installation . . . . . . . . . ..
BRAKE CALIPER ASSEMBLY (4 PISTON TYPE)
: Disassembly and Assembly . . . . . . . . ..
BRAKE CALIPER ASSEMBLY (4 PISTON TYPE)
: Inspection and Adjustment . . . . . . . . ...
REAR DISC BRAKE . . . . . . . . . . ..
BRAKE PAD (1 PISTON TYPE) . . . . . . . ...
BRAKE PAD (1 PISTON TYPE) : Exploded View ...
BRAKE PAD (1 PISTON TYPE) : Removal and In-
stallation . . . . . . . . . . . . . . . . ..
BRAKE PAD (1 PISTON TYPE) : Inspection and
Adjustment . . . . . . . . . . . . . . . ..
BRAKE PAD (2 PISTON TYPE) . . . . . . . ...
BRAKE PAD (2 PISTON TYPE) : Exploded View ...
BRAKE PAD (2 PISTON TYPE) : Removal and In-
stallation . . . . . . . . . . . . . . . . ..
BRAKE PAD (2 PISTON TYPE) : Inspection and
Adjustment . . . . . . . . . . . . . . . ..
BRAKE CALIPER ASSEMBLY (1 PISTON TYPE) ...
BRAKE CALIPER ASSEMBLY (1 PISTON TYPE)
: Exploded View . . . . . . . . . . . . . ..
BRAKE CALIPER ASSEMBLY (1 PISTON TYPE)
: Removal and Installation . . . . . . . . . ...
BRAKE CALIPER ASSEMBLY (1 PISTON TYPE)
: Disassembly and Assembly . . . . . . . . ..
BRAKE CALIPER ASSEMBLY (1 PISTON TYPE)
: Inspection and Adjustment . . . . . . . . .
BRAKE CALIPER ASSEMBLY (2 PISTON TYPE) ...
BRAKE CALIPER ASSEMBLY (2 PISTON TYPE)
: Exploded View . . . . . . . . . . . . . ..
BRAKE CALIPER ASSEMBLY (2 PISTON TYPE)
: Removal and Installation . . . . . . . . . ...
BRAKE CALIPER ASSEMBLY (2 PISTON TYPE)
: Disassembly and Assembly . . . . . . . . ..
BRAKE CALIPER ASSEMBLY (2 PISTON TYPE)
: Inspection and Adjustment . . . . . . . . .
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . ..
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . . . .
General Specifications . . . . . . . . . . .
Brake Pedal . . . . . . . . . . . . . . .
Brake Booster . . . . . . . . . . . . . . .
Front Disc Brake . . . . . . . . . . . . . .
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
BR-3
< SYMPTOM DIAGNOSIS >
C
D
E
G
H
I
J
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L
M
A
B
BR
N
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P
SYMPTOM DIAGNOSIS
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting Chart
INFOID:0000000001647814
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×
: Applicable
Reference page
,
,
,
,
,
,
,
,
,
,
,
NVH in PB
section
NVH in DLN
section
NHV in DLN
section
NVH in F
AX, RAX
and FSU, RSU section
NVH in WT
se
ct
io
n
NVH in WT
se
ct
io
n
NVH in RAX
section
NVH in ST
section
Possible cause and
SUSPECTED PARTS
Pad
s - da
ma
ge
d
Pad
s - un
ev
en
wea
r
Shi
ms
da
ma
ge
d
Ro
to
r im
ba
la
nc
e
Ro
to
r da
ma
ge
Rot
o
r runout
Ro
to
r de
fo
rm
a
tio
n
Ro
to
r de
fl
e
c
ti
o
n
Rot
o
r rust
Ro
to
r th
ic
kn
es
s va
ri
ati
o
n
Drum
o
u
t of
rou
n
d
PROPELLER SHAFT
DIFF
ERENTIAL
AXLE AND S
U
SPENSION
TI
RE
ROAD WHEE
L
DRIVE SHAFT
STE
E
RING
Symptom
BRAKE
Noise
×
×
×
×
×
×
×
×
×
×
Shake
×
×
×
×
×
×
×
Shimmy, Judder
×
×
×
×
×
×
×
×
×
×
×
BR-4
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001647815
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 AIRBAG” and “SEAT BELT” of this
Service Manual.
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 performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIRBAG”.
• 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 har-
ness connectors.
Precaution Necessary for Steering Wheel Rotation after Battery Disconnect
INFOID:0000000001647816
NOTE:
• Before removing and installing any control units, first turn the push-button ignition switch to the LOCK posi-
tion, then disconnect both battery cables.
• After finishing work, confirm that all control unit connectors are connected properly, then re-connect both
battery cables.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If a DTC is detected, perform trouble diagnosis according to self-diagnosis results.
This vehicle is equipped with a push-button ignition switch and a steering lock unit.
If the battery is disconnected or discharged, the steering wheel will lock and cannot be turned.
If turning the steering wheel is required with the battery disconnected or discharged, follow the procedure
below before starting the repair operation.
OPERATION PROCEDURE
1.
Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2.
Carry the Intelligent Key or insert it to the key slot and turn the push-button ignition switch to ACC position.
(At this time, the steering lock will be released.)
3.
Disconnect both battery cables. The steering lock will remain released with both battery cables discon-
nected and the steering wheel can be turned.
4.
Perform the necessary repair operation.
5.
When the repair work is completed, re-connect both battery cables. With the brake pedal released, turn
the push-button ignition switch from ACC position to ON position, then to LOCK position. (The steering
wheel will lock when the push-button ignition switch is turned to LOCK position.)
6.
Perform self-diagnosis check of all control units using CONSULT-III.
PRECAUTIONS
BR-5
< PRECAUTION >
C
D
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G
H
I
J
K
L
M
A
B
BR
N
O
P
Precaution for Procedure without Cowl Top Cover
INFOID:0000000001647817
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
Precaution for Brake System
INFOID:0000000001647818
WARNING:
Clean any dust from the front brake and rear brake with a vacuum dust collector. Never blow with com-
pressed air.
CAUTION:
• Only use “DOT 3” brake fluid. Refer to
MA-10, "Fluids and Lubricants"
.
• Never reuse drained brake fluid.
• Never spill or splash brake fluid on painted surfaces. Brake fluid may seriously damage paint. Wipe it
off immediately and wash with water if it gets on a painted surface.
• After pressing the brake pedal more deeply or harder than normal driving, such as air bleeding,
check each item of brake pedal. Adjust brake pedal if it is outside the standard value.
• Always clean with new brake fluid when cleaning the master cylinder, brake caliper and other com-
ponents.
• Never use mineral oils such as gasoline or light oil to clean. They may damage rubber parts and
cause improper operation.
• Always loosen the brake tube flare nut with a flare nut wrench.
• Tighten the brake tube flare nut to the specified torque with a
crowfoot (A) and torque wrench (B).
• Always confirm the specified tightening torque when install-
ing the brake pipes.
• Turn the ignition switch OFF and disconnect the ABS actuator
and electric unit (control unit) connector or the battery nega-
tive terminal before performing the work.
• Check that no brake fluid leakage is present after replacing
the parts.
• Burnish the brake contact surfaces after refinishing or replac-
ing rotors, after replacing pads, or if a soft pedal occurs at
very low mileage. Refer to
TYPE) : Inspection and Adjustment"
[front brake pad (1 piston type)],
ASSEMBLY (1 PISTON TYPE) : Inspection and Adjustment"
[front disc rotor (1 piston type)],
"BRAKE PAD (4 PISTON TYPE) : Inspection and Adjustment"
[front brake pad (4 piston type)],
"BRAKE CALIPER ASSEMBLY (4 PISTON TYPE) : Inspection and Adjustment"
[front disc rotor (4
BR-52, "BRAKE PAD (1 PISTON TYPE) : Inspection and Adjustment"
[rear brake pad (1
BR-58, "BRAKE CALIPER ASSEMBLY (1 PISTON TYPE) : Inspection and Adjustment"
[rear disc rotor (1 piston type)],
BR-55, "BRAKE PAD (2 PISTON TYPE) : Inspection and Adjustment"
[rear brake pad (2 piston type)],
BR-62, "BRAKE CALIPER ASSEMBLY (2 PISTON TYPE) : Inspection
[rear disc rotor (2 piston type)].
PIIB3706J
JPFIA0001ZZ
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