34 11 220 Removing and installing/replacing both front brake discs

Special tools required:

34 1 280

IMPORTANT: Brake discs must only be replaced in pairs (per axle).
Fit new brake discs only together with new brake pads.

Necessary preliminary tasks:

REMOVE FRONT BRAKE PADS .

After completing work, read and comply with notes on BREAKING-IN NEW BRAKE DISCS/BRAKE PADS .

Release screws (1).

Remove brake caliper with brake anchor plate in direction of arrow and tie up.

Installation note:

Tightening torque 34 11 2AZ .

Fig 1: Removing Brake Caliper With Brake Anchor Plate

Courtesy of BMW OF NORTH AMERICA, INC.

Check minimum brake disc thickness:

Position special tool 34 1 280 at three measuring points in area (1) and measure.
Compare measuring result and lowest value with SETPOINT VALUE .

Fig 2: Checking Minimum Brake Disc Thickness
Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: New brake pads may only be fitted if the brake disc thickness is greater than the MINIMUM BRAKE DISC THICKNESS (MIN TH).

Release screw (1) and remove brake disc.

Installation note:

Replace screw (1).

Tightening torque 34 11 1AZ .

Clean contact surface of wheel hub thoroughly and remove any traces of rust if necessary.

Irregularities in the contact surface can cause distortion in the brake disc!

Fig 3: Removing Brake Disc Screw

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: When removing the brake disc: On no account strike the friction ring with a hammer or similar object! If necessary, carefully tap with a rubber mallet against the brake disc chamber.