Infiniti FX35 / FX45. Manual - part 248

BRAKE FLUID

BR-9

< SERVICE INFORMATION >

C

D

E

G

H

I

J

K

L

M

A

B

BR

N

O

P

• 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

BR-10

< SERVICE INFORMATION >

BRAKE TUBE AND HOSE

BRAKE TUBE AND HOSE

Hydraulic Circuit

INFOID:0000000001327613

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 coun-

terclockwise.

• The brake tubes and hoses is an important safety part. If a brake fluid leak is detected, always disas-

semble 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 foreign

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

INFOID:0000000001327614

REMOVAL

1.

Drain brake fluid. Refer to 

BR-8, "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-8, "Bleeding Brake

System"

.

PFIA0818E

SFIA1204E

BRAKE TUBE AND HOSE

BR-11

< SERVICE INFORMATION >

C

D

E

G

H

I

J

K

L

M

A

B

BR

N

O

P

Removal and Installation of Rear Brake Piping and Brake Hose

INFOID:0000000001327615

REMOVAL

1.

Drain brake fluid. Refer to 

BR-8, "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-10, "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-10, "Hydraulic Circuit"

.

5.

After installation, bleed air. Refer to 

BR-8, "Bleeding Brake Sys-

tem"

.

Inspection After Installation

INFOID:0000000001327616

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

BR-12

< SERVICE INFORMATION >

BRAKE MASTER CYLINDER

BRAKE MASTER CYLINDER

On-Board Inspection

INFOID:0000000001327617

LEAK INSPECTION

• Check for leaking in a master cylinder installation surface, a reservoir tank installation surface, and brake

tube connections.

Component

INFOID:0000000001327618

Removal and Installation

INFOID:0000000001327619

CAUTION:

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 imme-
diately.

REMOVAL

1.

Remove cowl top cover. Refer to 

EI-23

.

2.

Drain brake fluid. Refer to 

BR-8, "Drain and Refill"

.

3.

Remove harness connectors for fluid level sensor and pressure sensor.

4.

Using a flare nut wrench, remove brake tube from master cylinder assembly.

1.

Reservoir cap

2.

Strainer

3.

Reservoir tank

4.

Grommet

5.

Cylinder body

6.

Pin

7.

Pressure sensor

8.

Pressure sensor (Only ICC models)

Refer to 

GI-8, "Component"

 and the followings for the symbols in the figure.

: Apply brake fluid.

PFIA0815E