3411520 Removing and installing/replacing front left or right brake caliper (Brembo)

WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 2011 BMW 328xi, 2011 BMW 328i, 2011 BMW 323i, 2010 BMW 335xi, and 2010 BMW 335i. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: The brake pad wear sensor must be replaced once it has been removed (brake pad wear sensor loses its retention capability in the brake pad).

Necessary preliminary tasks

Remove WHEELS .
Remove front BRAKE PAD SENSOR

NOTE: Read and comply with GENERAL INFORMATION .
After completing work: BLEED BRAKING SYSTEM

Press clutch pedal down to floor and secure with pedal support.

NOTE: The pedal support may only be released when the brake lines are reconnected.

This prevents brake fluid from emerging from the expansion tank and air from entering the system when the brake lines are opened.

Fig 1: Securing Clutch Pedal Down To Floor With Pedal Support

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If necessary, pull brake hose out of holder (1).

IMPORTANT: Grip brake hose at square head (3) to prevent connecting piece from turning in retaining bracket.

Disconnect brake hose from brake line (2).

Installation:

Tightening torque 34 32 1AZ .

Detach brake hose from brake caliper (4).

Installation:

Tightening torque 34 32 2AZ .

Fig 2: Identifying Brake Caliper, Brake Line, Brake Hose Square Head And Brake Hose Holder

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IMPORTANT: Never twist brake hose when installing it and avoid all contact with parts attached rigidly to the body.

NOTE: First tighten brake hose on brake caliper.
Move wheels into straight-ahead position.
Insert brake hose in bracket and screw onto brake pipe.

Release bolts (1) and pull off brake caliper with brake anchor plate towards rear.

Installation:

Tightening torque 34 11 FRONT BRAKE .

Fig 3: Identifying Brake Caliper Mounting Bolts

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Pull brake pads (1) off guide pins (2) and remove.

IMPORTANT: Mark any worn brake pads.
In the event of one-sided brake pad wear, do not change brake pads round.
Observe minimum thickness of brake pads. See FRONT BRAKE .

Installation:

Clean brake pads, brake caliper and guide pins.

Do not grease backs of brake pads sleeve.

Brake pads must be correctly seated on guide pins.

Fig 4: Pulling Brake Pads Off Guide Pin

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IMPORTANT: Do not grease brake pads and guides with anti-squeak paste.

Clean contact surface (1) of brake pistons.

Fig 5: Identifying Brake Piston Contact Surface

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