34 11 020 Removing and installing or replacing front left or right brake caliper (TRW)

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Necessary preliminary tasks:

Remove wheels
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: Clutch Pedal And 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:

For tightening torque refer to 34 32 1AZ in 34 32 BRAKE LINES .

Detach brake hose from brake caliper (4).

Installation:

For tightening torque refer to 34 32 2AZ in 34 32 BRAKE LINES .

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

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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.

Pull brake pad wear sensor (1) towards rear out of lining (left side only).

If necessary, replace brake pad wear sensor.

Unscrew guide bolts (3).

If necessary, grip at hexagon head (2).

Remove brake caliper by pulling upwards.

Installation:

Replace guide screws.

For tightening torque refer to 34 11 5AZ in 34 11 FRONT BRAKE .

Fig 3: Brake Pad Wear Sensor, Hexagon Head And Guide Bolts

Courtesy of BMW OF NORTH AMERICA, INC.