Nissan Sentra B18 (2020-2025) Service Manual: Removal and Installation

Removal and Installation

Warning:

Clean dust on the brake caliper and the brake pads using a vacuum dust collector to minimize the hazards of airborne particles or other material.

CAUTION:

• Do not depress the brake pedal while removing the brake pads because the piston may pop out.

• Do not 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.

• Do not bend, twist, or pull the brake hoses and piping.

• Do not reuse drained brake fluid.

Note:

When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spilling.

REMOVAL

Observe the brake fluid level in the master cylinder reservoir tank. Partially drain brake fluid if necessary. Refer to Draining.

Remove the front wheel and tire using power tool. Refer to Removal and Installation .

Secure the disc brake rotor using wheel nuts.

Remove the union bolt, the copper sealing washers, and disconnect the brake hose from the brake caliper. Discard the copper sealing washers. Refer to Exploded View.

CAUTION:

Do not reuse copper sealing washers.

Remove the slide pin bolts. Refer to Exploded View.

Remove the brake caliper from the torque member.

CAUTION:

Do not drop the brake pads, the shims, or the brake caliper.

Remove the brake pads, shims, and pad retainers from the torque member. Refer to Exploded View.

CAUTION:

• Do not damage the pad retainers or the piston boot.

• Do not drop the brake pads, shims, or pad retainers.

• Note the position of components during removal to aid with installation.

Remove the torque member bolts and the torque member.

INSTALLATION

Install the torque member and the torque member bolts. Tighten the torque member bolts to the specified torque. Refer to Exploded View.

Install the brake pads, shims, and pad retainers to the torque member. Refer to Exploded View.

CAUTION:

Do not drop the brake pads, shims, or pad retainers.

Install the brake caliper to the torque member.

Install the slide pin bolts. Tighten the slide pin bolts to the specified torque.

Assemble the union bolt (1) and the copper sealing washers (2) to the brake hose and install it as an assembly to the brake caliper. Align the brake hose part (A) with the brake caliper assembly projection (B), and tighten the union bolt to the specified torque. Refer to Exploded View.

CAUTION:

Do not reuse copper sealing washers.

Refill with new brake fluid and bleed air from the brake system. Refer to Bleeding Brake System.

CAUTION:

• Do not reuse drained brake fluid.

• Do not spill or splash brake fluid on the disc brake rotor.

Depress the brake pedal several times and perform the inspection after installation.

Install the front wheel and tire. Refer to Removal and Installation.

INSPECTION AFTER INSTALLATION

Check the drag of the front disc brake. If any drag is found, perform the following procedure: Remove the brake pads. Refer to Removal and Installation. Using a suitable tool, press the piston into the brake caliper body.

CAUTION:

Do not damage the piston boot.

Install the brake pads. Depress the brake pedal several times. Check the drag of the front disc brake again. If any drag is found, disassemble the brake caliper body. Refer to Disassembly and Assembly.

Burnish contact surfaces after replacing the brake caliper or if a soft pedal occurs at very low mileage. Refer to Periodic Maintenance Operation.