2007 INFINITI FX35 brake

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING BR-5
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Revision: 2006 July 2007 FX35/FX45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartNFS000LR
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: Applicable
Reference page
BR-19
,
BR-25
BR-19
, BR-25
BR-19
, BR-25—
—
BR-24, BR-30—
—
—
BR-24, BR-30—
NVH in PR section
NVH in FFD and RFD section
NVH in FAX, RAX and FSU, RSU section
NVH in WT section
NVH in WT section
NVH in FAX and RAX section
NVH in PS section
Possible cause and
SUSPECTED PARTS
Pads - damaged
Pads - uneven wear
Shims damaged
Rotor imbalance
Rotor damage
Rotor runout
Rotor deformation
Rotor deflection
Rotor rust
Rotor thickness variation
Drum out of round
PROPELLER SHAFT
DIFFERENTIAL
AXLE AND SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
STEERING
Symptom BRAKE Noise
××× ×× ×××
××
Shake ×××××
××
Shimmy, Judder ××××××× ××× ×

BR-6
BRAKE PEDAL
Revision: 2006 July 2007 FX35/FX45
BRAKE PEDALPFP:46501
Inspection and AdjustmentNFS000LS
Play and clearance between brake pedal and floor panel with pedal depressed
1. Check brake pedal height from dash lower panel.
2. Adjust height referring to the following specifications.
ADJUSTMENT
1. Loosen stop lamp switch and ASCD cancel switch (or brake switch) by rotating it counterclockwise by 45 °.
2. Loosen lock nut (A) on input rod, then rotate input rod to set pedal to the specified height, and tighten lock nut (A). Refer to
BR-15, "
Components" .
CAUTION:
Make sure the threaded end of input rod stays inside clevis.
3. With pedal pulled and held by hand, press stop lamp switch and ASCD cancel switch (or brake switch) until its threaded end con-
tacts stopper rubber.
4. With the threaded end of stop lamp switch and ASCD cancel switch (or brake switch) contacting stopper rubber, rotate switch
clockwise by 45 ° to secure.
CAUTION:
Make sure that the clearance “C” between stopper rubber
and threaded end of stop lamp switch and ASCD cancel
switch (or brake switch) is within the standard.
5. Check pedal play. CAUTION:
Make sure that stop lamps go off when pedal is released.
6. Start engine to check brake pedal depressed height.
H Brake pedal height (from dash
lower panel top surface) 161.5
− 171.5 mm (6.358 − 6.752 in)
D Depressed pedal height [under a
force of 490 N (50 kg, 110 lb) with
engine running] More than 95 mm (3.74 in)
C Clearance between stopper rubber
and the threaded end of stop lamp
switch and ASCD cancel switch (or
brake switch) 0.74
− 1.96 mm (0.0291 −0.0772 in)
A Pedal play 3 − 11 mm (0.12 − 0.43 in)
SFIA2380E
PFIA0819E

BRAKE PEDAL BR-7
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Revision: 2006 July 2007 FX35/FX45
ComponentsNFS000OA
Removal and InstallationNFS000LT
REMOVAL
1. Remove front kicking plate (driver side). Refer to EI-40, "KICKING PLATE" .
2. Remove dash side finisher (driver side). Refer to EI-39, "
DASH SIDE FINISHER" .
3. Remove instrument lower panel (driver side). Refer to IP-10, "
INSTRUMENT PANEL ASSEMBLY" .
4. Remove steering column assembly. Refer to PS-13, "
Removal and Installation" .
5. Remove stop lamp switch and ASCD cancel switch (or brake switch) from pedal assembly.
6. Remove snap pin and clevis pin from brake booster clevis.
7. Remove mounting nuts and bolt from bracket, and remove brake pedal assembly from vehicle.
1. Clevis pin 2. Snap pin 3. Brake pedal assembly
4. Stopper rubber 5. Pedal pad 6. ASCD cancel switch (Models with ASCD)
Brake switch (Models with ICC)
7. Stop lamp switch 8. Clip
SFIA1940E
SFIA0159E

BR-8
BRAKE PEDAL
Revision: 2006 July 2007 FX35/FX45
INSPECTION AFTER REMOVAL

Make sure the rivets in the upper part of brake pedal are not
deformed.

Make sure that joint length “L” of sub-bracket and sliding plate is
5.5 mm (0.217 in) or more.

Replace brake pedal assembly if any non-standard condition is
detected.

Check clevis pin and plastic stopper for damage and deforma-
tion. Replace clevis pin if there are.
INSTALLATION
Installation in the reverse order of removal.

After installing brake pedal assembly to the vehicle, adjust brake pedal height. Refer to BR-6, "Inspection
and Adjustment" .
SFIA2487E
SBR997

BRAKE FLUID BR-9
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Revision: 2006 July 2007 FX35/FX45
BRAKE FLUIDPFP:KN100
On-Board InspectionNFS000LU
LEVEL CHECK

Make sure the fluid level in reservoir tank is within the standard
(between MAX and MIN lines).

Visually check around reservoir tank for fluid leakage.

If fluid level is excessively low, check brake system for leakage.

Release parking brake pedal and see if brake warning lamp
goes off. If not, check brake system for fluid leakage.
Drain and RefillNFS000LV
CAUTION:

Refill with new brake fluid “DOT3”.

Do not reuse drained brake fluid.

Be careful not to splash brake fluid on painted areas; it way cause paint damage. If brake fluid is
splashed on painted surfaces of body, immediately wipe it off and them wash it away with water
immediately.

Before working, disconnect connectors of ABS actuator and electric unit (control unit) or battery
negative terminal.
1. Connect a vinyl tube to each bleed valve.
2. Depress brake pedal, loosen each bleed valve, and gradually remove brake fluid.
3. Make sure there is no foreign material in reservoir tank, and refill with new brake fluid.
4. Rest foot on brake pedal. Loosen bleed valve. Slowly depress pedal until it stops. Tighten bleed valve. Release brake pedal.
Repeat this process a few times, then pause to add new brake
fluid to master cylinder. Continue until new brake fluid flows out.
5. Bleed Air. Refer to BR-10, "
Bleeding Brake System" .
SFIA1032E
BRA0007D
SBR995

BR-10
BRAKE FLUID
Revision: 2006 July 2007 FX35/FX45
Bleeding Brake SystemNFS000LW
CAUTION:

Carefully monitor brake fluid level in reservoir tank
during bleeding operation.

Refill with new brake fluid “DOT 3”. Make sure it is at least
half way at all times while bleeding air out of system.

Place a container under master cylinder not to spill brake
fluid.

Turn ignition switch OFF and disconnect ABS actuator and
electric unit (control unit) or battery negative terminal.

Bleed air in the following order. Right rear brake → Left
front brake → Left rear brake → Right front brake
1. Connect a transparent vinyl tube to bleed valve.
2. Fully depress brake pedal several times.
3. With brake pedal depressed, open bleed valve to release air.
4. Close bleed valve.
5. Release brake pedal slowly.
6. Repeat steps 2, through 5, until clear brake fluid comes out of bleed valve.
SBR995
SBR419C

BRAKE TUBE AND HOSE BR-11
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Revision: 2006 July 2007 FX35/FX45
BRAKE TUBE AND HOSEPFP:46210
Hydraulic CircuitNFS000LX
CAUTION:

All brake hoses and tubes must be free from excessive bending, twisting and pulling.

Make sure there is no interference with other parts when turning steering both clockwise and
counterclockwise.

The brake tubes and hoses is an important safety part. If a brake fluid leak is detected, always dis-
assemble the parts. Replace applicable part with a new one, if necessary.

Be careful not to splash brake fluid on painted areas; it way cause paint damage. If brake fluid is
splashed on painted surfaces of body, immediately wipe it off and them wash it away with water
immediately.

Do not bend or twist brake hose sharply, or strongly pull it.

When removing components, cover brake line connections so that no dirt, no dust, or other for-
eign matter gets in.

Refill with new brake fluid “ DOT 3 ”.

Do not reuse drained brake fluid.
Removal and Installation of Front Brake Tube and Brake Hose NFS000LY
REMOVAL
1. Drain brake fluid. Refer to BR-9, "Drain and Refill" .
2. Using a flare nut wrench, remove brake tube from brake hose.
3. Remove union bolt and remove brake hose from caliper assembly.
4. Remove lock plate and remove brake hose from vehicle.
INSTALLATION
1. Position brake hose by aligning with the protrusion on caliper assembly, and them tighten union bolt to the specified torque.
CAUTION:
Do not reuse copper washer.
2. Install brake hose to brake tube. Temporarily tighten flare nut by hand as much as possible. Secure them it to bracket with lock
plate.
3. Using a flare nut torque wrench, tighten flare nut to the specified torque.
4. Refill brake fluid and bleed air. Refer to BR-10, "
Bleeding Brake
System" .
PFIA0818E
SFIA1204E

BR-12
BRAKE TUBE AND HOSE
Revision: 2006 July 2007 FX35/FX45
Removal and Installation of Rear Brake Piping and Brake Hose NFS000LZ
REMOVAL
1. Drain brake fluid. Refer to BR-9, "Drain and Refill" .
2. Using a flare nut wrench, remove brake tube from brake hose.
3. Remove union bolt, and then remove brake hose from caliper assembly.
4. Remove lock nut plate and remove brake hose from vehicle.
INSTALLATION
1. Install brake hose to caliper assembly positioning hole and then tighten union bolt to the specified torque. Refer to BR-11, "
Hydraulic Circuit" .
CAUTION:
Do not reuse copper washer.
2. Connect brake hose to brake tube. Temporarily tighten flare nut by hand as much as possible.
3. Tighten brake hose mounting bolt to the specified torque.
4. Using a flare nut torque wrench, tighten flare nut to the specified torque. Refer to BR-11, "
Hydraulic Circuit" .
5. After installation, bleed air. Refer to BR-10, "
Bleeding Brake
System" .
Inspection After InstallationNFS000M0
CAUTION:
If a leak is detected at the connections, retighten it or replace damaged part if necessary.
1. Check brake lines (tubes and hoses), and connections for fluid leakage, damage, twist, deformation, con- tact with other parts, and loose connections.
2. While depressing brake pedal under a force of 785 N (80 kg, 177 lb) with engine running for approximately 5 seconds, check for fluid leak from each part.
SFIA1942E