Infiniti G35 (V35) Sedan. Manual - part 226

FRONT DISC BRAKE

BR-41

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• Never drop the brake pads, shims, and the shim covers.

INSTALLATION

WARNING:

Clean any dust from the brake caliper and brake pads with a vacuum dust collector. Never blow with
compressed air.

CAUTION:

• Never depress the brake pedal while removing the brake pads because the piston may pop out.
• Never spill or splash brake fluid on the disc rotor.

1.

Apply Copper based brake grease to the pad retainers before installing it to the torque member if the pad
retainers has been removed.

CAUTION:

• Securely assemble the pad retainers so that it will not be lifted up from the torque member.
• Never deform the pad retainers.

2.

Apply Copper based brake grease to the mating faces between the shims and the shim covers and install
them to the brake pad.

CAUTION:

Always replace the shims together with the shim covers when replacing the brake pad.

3.

Install the brake pads to the torque member.

CAUTION:

Both inner and outer pads have a pad return system on the
pad retainer. Install pad return lever (1) securely to pad wear
sensor (2).

4.

Install cylinder body to torque member.

CAUTION:

• Never damage the piston boot.
• In the case of replacing a pad with new one, check a brake

fluid level in the reservoir tank because brake fluid
returns to master cylinder reservoir tank when pressing
piston in.

NOTE:
Use a disc brake piston tool to easily press piston. 

5.

Install the lower sliding pin bolt and tighten it to the specified torque.

6.

Depress the brake pedal several times to check that no drag feel is present for the front disc brake.

7.

Install tires.

BRAKE PAD (2 PISTON TYPE) : Inspection and Adjustment

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INSPECTION AFTER REMOVAL

Replace the shims and the shim covers if rust is excessively attached.

ADJUSTMENT AFTER INSTALLATION

Brake Burnishing Procedure

Burnish contact surfaces between pads according to following procedure after refinishing or replacing pads, or
if a soft pedal occurs at very low mileage.

CAUTION:

• Be careful of vehicle speed because the brake does not operate easily until pads and disc rotor are

securely fitted.

• Only perform this procedure under safe road and traffic conditions. Use extreme caution.

1.

Drive vehicle on straight, flat road.

2.

Depress brake pedal with the power to stop vehicle within 3 to 5 seconds until the vehicle stops.

3.

Drive without depressing brake for a few minutes to cool the brake.

4.

Repeat steps 1 to 3 until pad and disc rotor are securely fitted.

BRAKE CALIPER ASSEMBLY (1 PISTON TYPE)

BRAKE CALIPER ASSEMBLY (1 PISTON TYPE) : Exploded View

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BR-42

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FRONT DISC BRAKE

BRAKE CALIPER ASSEMBLY (1 PISTON TYPE) : Removal and Installation

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REMOVAL

WARNING:

Clean any dust from the brake caliper and brake pads with a vacuum dust collector. Never blow with
compressed air.

CAUTION:

Never depress the brake pedal. Brake fluid may splash while removing the brake hose.

1.

Remove tires with power tool.

2.

Fix the disc rotor using wheel nuts.

3.

Drain brake fluid. Refer to 

BR-11, "Draining"

.

CAUTION:

Never spill or splash brake fluid on the disc rotor.

4.

Remove union bolt, and then disconnect brake hose from caliper assembly.

1.

Bleeder valve

2.

Cap

3.

Brake hose

4.

Union bolt

5.

Copper washer

6.

Protector

7.

Bushing

8.

Location pin

9.

Sliding pin

10. Sliding pin boot

11.

Cylinder body

12. Piston seal

13. Piston

14. Piston boot

15. Torque member

16. Inner pad

17. Pad wear sensor

18. Pad retainer

19. Pad return spring

20. Outer pad

1: Apply rubber grease.

2: Apply bentonite noise damping brake grease.

: Apply brake fluid.

Refer to 

GI-4, "Components"

 for symbols not described on the above.

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FRONT DISC BRAKE

BR-43

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5.

Remove torque member mounting bolts, and remove brake cali-
per assembly.

CAUTION:

Never drop brake pads and caliper assembly.

6.

Remove disc rotor.

CAUTION:

• Put matching marks on the wheel hub and bearing assem-

bly and the disc rotor before removing the disc rotor.

• Never drop disc rotor.

INSTALLATION

WARNING:

Clean any dust from the brake caliper and brake pads with a vacuum dust collector. Never blow with
compressed air.

CAUTION:

Never depress the brake pedal. Brake fluid may splash while removing the brake hose.
1.

Install disc rotor.

CAUTION:

Align the matching marks that have been made during removal when reusing the disc rotor.

2.

Install the brake caliper assembly to the vehicle and tighten the torque member mounting bolts to the
specified torque.

CAUTION:

Never spill or splash any grease and moisture on the brake caliper assembly mounting face,
threads, mounting bolts and washers. Wipe out any grease and moisture.

3.

Install brake hose to brake caliper assembly, and tighten union bolts to the specified torque.

4.

Refill with new brake fluid and perform the air bleeding. Refer to 

BR-12, "Bleeding Brake System"

.

CAUTION:

• Never reuse drained brake fluid.
• Never spill or splash brake fluid on the disc rotor.

5.

Check that no drag feel is present for the front disc brake.

6.

Install tires.

BRAKE CALIPER ASSEMBLY (1 PISTON TYPE) : Disassembly and Assembly

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DISASSEMBLY

NOTE:
The torque member, brake pads, pad return spring and pad retainers never need to be removed when disas-
sembling and assembling the cylinder body.

1.

Remove the protector and location pin and the sliding pin bolt, and remove the cylinder body from the
torque member.

CAUTION:

Never drop pads, pad return spring and pad retainers from torque member.

2.

Remove sliding pin and sliding pin boot from torque member.

3.

Place a wooden block as shown in the figure, and blow air from
union bolt mounting hole to remove piston and piston boot.

CAUTION:

Never get fingers caught in the pistons.

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BR-44

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FRONT DISC BRAKE

4.

Remove piston seal from cylinder body using suitable tool.

CAUTION:

Be careful not to damage a cylinder inner wall.

ASSEMBLY

1.

Apply brake fluid to piston seal (1), and install them to cylinder
body.

CAUTION:

Never reuse piston seal.

2.

Apply rubber grease to piston boot (1). Cover the piston (2) end
with piston boot, and then install cylinder side lip on piston boot
securely into a groove on cylinder body.

CAUTION:

Never reuse piston boot.

3.

Apply brake fluid to piston (1). Push piston into cylinder body by
hand and push piston boot (2) piston-side lip into the piston
groove.

CAUTION:

Press the piston evenly and vary the pressing point to pre-
vent cylinder inner wall from being rubbed.

4.

Install sliding pin and sliding pin boots to torque member.

5.

Install the cylinder body to the torque member and tighten the location pin and sliding pin bolt to the spec-
ified torque.

6.

Install the protector.

BRAKE CALIPER ASSEMBLY (1 PISTON TYPE) : Inspection and Adjustment

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INSPECTION AFTER DISASSEMBLY

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