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

Special tools required:

34 1 280
83 30 2 459 458

Attention!

If required, washers for increasing the coefficient of friction (1) can be installed in some vehicles between wheel hub/brake disc and between brake disc/wheel rim (also see applicable BMW parts catalogue).

These washers must be reinstalled or replaced in case of damage!

Center or install the washer for increasing the coefficient of friction (1) with the help of special tool 83 30 2 459 458 (3 centering pins) on the wheel hub!

Courtesy of BMW OF NORTH AMERICA, INC.

Necessary preliminary work:

Remove FRONT WHEELS .
Remove and clean BRAKE PADS .

NOTE: After completing the repair:
Read and comply with NOTES ON BREAKING IN NEW BRAKE DISCS/BRAKE PADS .

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.

NOTE: If the brake discs are replaced, you must also fit new brake pads.
Brake discs may only be replaced in pairs (on each axle).

Courtesy of BMW OF NORTH AMERICA, INC.

Attention!

New brake pads may only be fitted if the brake disc thickness is greater than the minimum brake disc thickness (MIN TH).

Attention!

To release brake disc: Do not under any circumstances strike friction ring with a hammer or similar!

If necessary, carefully tap on base of brake disc chamber with a rubber mallet.

Clean contact surface of brake disc at wheel hub thoroughly and remove traces of corrosion.

Unevenness on contact surface may result in distortion of brake disc!

Courtesy of BMW OF NORTH AMERICA, INC.

Release both screws (1) and remove brake disc (2).

Installation note:

Replace screws.

Tightening torque: 34 11 1AZ .