Necessary preliminary tasks

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 BMW 328xi, 2012 BMW 328i, 2011 BMW 328xi, 2011 BMW 328i, and 2010 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.

Remove WHEEL
Read and comply with GENERAL INFORMATION .

After completing work: BLEED BRAKE 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: Identifying Brake Pedal Support

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IMPORTANT: Grip brake hose at square head (2) so that connecting piece can not rotate in retaining bracket.

Disconnect brake hose from brake line (1).

Installation:

Tightening torque 34 32 1AZ .

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

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Detach brake hose from brake caliper (3).

Installation:

Tightening torque 34 32 3AZ .

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.

Insert brake hose in bracket and screw onto brake pipe.

Lift out retaining spring (1).

Fig 3: Removing Retaining Spring

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Remove cover plug (1).

Pull brake pad wear sensor out of brake pad (right side only).

If necessary, replace brake pad wear sensor.

Fig 4: Identifying Brake Pad Sensor Cover Plug

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Unscrew guide bolts (1).

Remove brake caliper (2) by pulling forward.

Installation:

Tightening torque 34 21 4AZ .

Clean guide screws only; do not grease.

Check threads.

Replace all guide screws which are not in perfect condition.

Fig 5: Identifying Brake Caliper And Guide Bolts

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IMPORTANT: Mark any worn brake pads.
In the event of one-sided brake pad wear, do not change brake pads round.

Remove outer brake pad.

Inner brake pad is located with its spring in the piston.

Clean brake pads.

Do not grease backs of brake pads sleeve.

Fig 6: Removing Brake Pads Sleeve

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