2004 INFINITI FX35 air bleeding

BR-1
BRAKE SYSTEM
F BRAKES
CONTENTS
C
D
E
G
H
I
J
K
L
M
SECTION BR
A
B
BR
Revision: 2004 November 2004 FX35/FX45
BRAKE SYSTEM
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Precautions for Brake System .................................. 3
PREPARATION ........................................................... 4
Commercial Service Tools ........................................ 4
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING ................................................ 5
NVH Troubleshooting Chart ..................................... 5
BRAKE PEDAL .......................................................... 6
Inspection and Adjustment ....................................... 6
PLAY AND CLEARANCE BETWEEN BRAKE
PEDAL AND FLOOR PANEL WITH PEDAL
DEPRESSED ........................................................ 6
ADJUSTMENT ...................................................... 7
Removal and Installation .......................................... 7
COMPONENT PARTS LOCATION ....................... 7
REMOVAL ............................................................. 8
INSPECTION AFTER REMOVAL ......................... 8
INSTALLATION ..................................................... 8
BRAKE FLUID ............................................................ 9
On-board Inspection ................................................. 9
LEVEL CHECK ..................................................... 9
Drain and Refill ......................................................... 9
Bleeding Brake System .......................................... 10
BRAKE PIPING AND HOSE .....................................11
Hydraulic Circuit ...................................................... 11
Removal and Installation of Front Brake Piping and
Brake Hose ............................................................. 11
REMOVAL ............................................................ 11
INSTALLATION .................................................... 11
Removal and Installation of Rear Brake Piping and
Brake Hose ............................................................ 12
REMOVAL ........................................................... 12
INSTALLATION ................................................... 12
Inspection After Installation .................................... 12
BRAKE MASTER CYLINDER .................................. 13
On-board Inspection ............................................... 13
LEAK INSPECTION ............................................ 13Removal and Installation ........................................ 13
REMOVAL ........................................................... 13
INSTALLATION ................................................... 13
Components ........................................................... 13
Disassembly and Assembly .................................... 14
DISASSEMBLY ................................................... 14
ASSEMBLY ......................................................... 14
BRAKE BOOSTER ................................................... 15
On-Vehicle Service ................................................. 15
OPERATING CHECK .......................................... 15
AIRTIGHT CHECK .............................................. 15
Removal and Installation ........................................ 16
REMOVAL ........................................................... 16
INSPECTION AFTER REMOVAL ....................... 16
INSTALLATION ................................................... 17
VACUUM LINES ....................................................... 18
Removal and Installation ........................................ 18
Inspection ............................................................... 18
VISUAL INSPECTION ......................................... 18
CHECK VALVE INSPECTION ............................. 19
FRONT DISC BRAKE ............................................... 20
On-vehicle Inspection ............................................. 20
PAD WEAR INSPECTION ................................... 20
Components ........................................................... 20
Removal and Installation of Brake Pad .................. 21
REMOVAL ........................................................... 21
INSTALLATION ................................................... 21
Removal and Installation of Brake Caliper Assembly
... 21
REMOVAL ........................................................... 21
INSTALLATION ................................................... 21
Disassembly and Assembly of Brake Caliper
Assembly ................................................................ 22
DISASSEMBLY ................................................... 22
CALIPER INSPECTION ...................................... 23
ASSEMBLY ......................................................... 23
DISC ROTOR INSPECTION ............................... 24
BRAKE BURNISHING PROCEDURE ................. 24
REAR DISC BRAKE ................................................. 25
On-vehicle Inspection ............................................. 25

BRAKE FLUID
BR-9
C
D
E
G
H
I
J
K
L
MA
B
BR
Revision: 2004 November 2004 FX35/FX45
BRAKE FLUIDPFP:KN100
On-board InspectionAFS001MV
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 leaks.

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

If brake warning lamp remains illuminated after parking lever is
released, check brake system for fluid leakage.
Drain and RefillAFS001MW
CAUTION:

Refill with new brake fluid “DOT3”.

Do not reuse drained brake fluid.

Do not let brake fluid splash on the painted surfaces of the body. This might damage the paint, so
when splashing it, immediately wipe off the area and wash away with water.

Before servicing, disconnect actuator connector or battery negative cable.
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.
Bleed Air. Refer to BR-10, "
Bleeding Brake System" .
SFIA1032E
BRA0007D
SBR995

BR-10
BRAKE FLUID
Revision: 2004 November 2004 FX35/FX45
Bleeding Brake SystemAFS001MX
CAUTION:
While bleeding, pay attention to master cylinder fluid level.
1. Turn ignition switch OFF and disconnect ABS actuator and electric unit (control unit) connector or battery
negative terminal.
2. Connect a vinyl tube to the rear right bleed valve.
3. Fully depress brake pedal 4 to 5 times.
4. With brake pedal depressed, loosen bleed valve to let the air out, and then tighten it immediately.
5. Repeat steps 3, 4 until no more air comes out.
6. Tighten bleed valve to the specified torque. Refer to BR-20, "
Components" (front disc brake), BR-25,
"Components" (rear disc brake).
7. In steps 2 to 6 below, with master cylinder reservoir tank filled at least half way, bleed air from the front left,
rear left, and front right bleed valve, in that order.

BRAKE PIPING AND HOSE
BR-11
C
D
E
G
H
I
J
K
L
MA
B
BR
Revision: 2004 November 2004 FX35/FX45
BRAKE PIPING AND HOSEPFP:46210
Hydraulic CircuitAFS001MY
CAUTION:

All hoses and piping (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 piping is an important safety part. If a brake fluid leak is detected, always disassemble
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 areas, wash it away with water immediately.

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

When removing components, cover connections so that no dirt, dust, or other foreign matter gets
in.

Refill with new brake fluid “ DOT 3 ”

Do not reuse drained brake fluid.
Removal and Installation of Front Brake Piping and Brake Hose AFS001MZ
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 the vehicle.
INSTALLATION
1. Install brake hose by aligning with the protrusion on caliper
assembly, and tighten union bolt to the specified torque.
NOTE:
Do not reuse copper washer.
2. Install brake hose to brake tube, partially tighten flare nut as far
as possible by hand, then secure it to bracket with lock plate.
3. Using a flare nut wrench, tighten flare nut to the specified
torque.
4. Refill brake fluid and bleed air. Refer to BR-10, "
Bleeding Brake
System" .
SFIA1941E
SFIA1204E

BR-12
BRAKE PIPING AND HOSE
Revision: 2004 November 2004 FX35/FX45
Removal and Installation of Rear Brake Piping and Brake Hose AFS001N0
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 bolt.
4. Remove union bolt, and then remove brake hose from caliper assembly.
INSTALLATION
1. Install brake hose to caliper assembly positioning hole and
tighten union bolt to the specified torque.
NOTE:
Do not reuse copper washer.
2. Install brake hose to brake tube, partially tighten flare nut as far
as possible by hand, then tighten bolt to the specified torque.
3. Using a flare nut wrench, tighten flare nut to the specified
torque.
4. Refill brake fluid and bleed air. Refer to BR-10, "
Bleeding Brake
System" .
Inspection After InstallationAFS001N1
CAUTION:
If a leak is detected at the connections, retighten it or, if necessary, replace the damaged part.
1. Check brake lines (tubes and hoses), and connections for fluid leaks, damage, twist, deformation, contact
with other parts, and loose connections. Replace any damage parts.
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 leakage from each part.: 23.5 N·m (2.4 kg-m, 17 ft-lb)
SFIA1942E

BRAKE MASTER CYLINDER
BR-13
C
D
E
G
H
I
J
K
L
MA
B
BR
Revision: 2004 November 2004 FX35/FX45
BRAKE MASTER CYLINDERPFP:46010
On-board InspectionAFS001N2
LEAK INSPECTION

Check for leaking in master cylinder attachment portion, reservoir tank, and brake tube connections.
Removal and InstallationAFS001N3
CAUTION:
Be careful not to splash brake fluid on painted areas; it way cause paint damage. If brake fluid is
splashed on painted areas, wash it away with water immediately.
REMOVAL
1. Drain brake fluid. Refer to BR-9, "Drain and Refill" .
2. Disconnect harness connectors for fluid level sensor and pressure sensor.
3. Using a flare nut wrench, disconnect brake tube from master cylinder assembly.
4. Remove master cylinder assembly fixing nut, remove master cylinder assembly from the vehicle. Refer to
BR-16, "
Removal and Installation" .
INSTALLATION

Install in the reverse order of removal.
–Refill brake fluid and bleed air. Refer to BR-10, "Bleeding Brake System" .
CAUTION:

Refill with new brake fluid “DOT3”.

Do not reuse drained brake fluid.
ComponentsAFS001N4
SFIA2157E

BRAKE BOOSTER
BR-17
C
D
E
G
H
I
J
K
L
MA
B
BR
Revision: 2004 November 2004 FX35/FX45
INSTALLATION
1. Loosen lock nut to adjust input rod length so that the length B (in
the figure) satisfies the specified value.
2. After adjusting “B”, temporarily tighten lock nut to install booster
assembly to the vehicle. At this time, make sure to install a gas-
ket between booster assembly and the dash panel.
3. Connect brake pedal with clevis of input rod.
4. Install pedal bracket mounting nuts and tighten them to the
specified torque.
5. Install brake piping from brake master cylinder to ABS actuator.
Refer to BR-11, "
Hydraulic Circuit" .
6. Install master cylinder to booster assembly. Refer to BR-16, "
Removal and Installation" .
7. Adjust the height and play of brake pedal.
8. Tighten lock nut of input rod to the specified torque.
9. Refill new brake fluid and bleed air. Refer to BR-10, "
Bleeding Brake System" . Length “B” : 125 mm (4.92 in)
SGIA0060E

BR-22
FRONT DISC BRAKE
Revision: 2004 November 2004 FX35/FX45
2. Install caliper assembly to the vehicle, and tighten bolts to the
specified torque.
CAUTION:
When attaching caliper assembly to the vehicle, wipe any
oil off knuckle spindle, washers and caliper assembly
attachment surfaces.
3. Install brake hose to brake caliper assembly, and tighten union
bolt to the specified torque.
CAUTION:

Do not reuse copper washers for union bolt.

Attach brake hose to caliper assembly together with
union bolt and washers.
4. Refill new brake fluid and bleed air. Refer to BR-10, "
Bleeding Brake System" .
5. Attach tires to the vehicle.
Disassembly and Assembly of Brake Caliper AssemblyAFS001S1
DISASSEMBLY
1. Remove sliding pin bolt, and then remove the pad, shim, shim cover, and pad retainer from the torque
member.
2. Remove sliding pins and sliding pin boots from torque member.
3. Place a wooden block as shown in the figure, and blow air from
union bolt mounting hole to remove pistons and piston boots.
CAUTION:
Do not get your fingers caught in piston.
4. Using a flat-bladed screwdriver, remove piston seal from cylin-
der body.
CAUTION:
Be careful not to damage cylinder inner wall.
SFIA1205E
SFIA1204E
MAA0272D
SFIA1301E