34 11 220 Removing And Installing/Replacing Both Front Carbon Ceramic Brake Discs (CSiC)

WARNING: This page does not describe the selected car, but rather 33 other vehicles, including the 2018 BMW M6, 2018 BMW 650i xDrive, 2018 BMW 650i, 2018 BMW 640i xDrive, and 2018 BMW 640i. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

34 1 280

IMPORTANT: It is imperative that you follow the GENERAL INFORMATION on handling the carbon ceramic brake (CSiC)!
Consult the BOUNDARY SAMPLES CATALOGUE to evaluate the visible quality of new carbon ceramic brake discs.
After completing repair work, read and comply with notes on BREAKING IN NEW BRAKE DISCS/BRAKE PADS .

Necessary preliminary tasks:

Only remove wheels with the help of a WHEEL JACK !
Failure to comply with this stipulation may give rise to damage to the brake disc or brake caliper!
Remove and clean/replace front BRAKE PADS

NOTE: Check the carbon ceramic brake discs for WEAR using the wear indicators

Replacement of a single brake disc (at front or rear axle) is approved for repair operations.

We recommend replacing both brake discs on an axle (especially on the front) during repairs owing to the danger that the brakes will otherwise pull to one side during the running-in phased and the associated risk that a repeat repair will be necessary.

At the same time, it is not absolutely imperative from the technical perspective. The decision ultimately should be made on a case-by-case basis, according to the wear on the pads and their wear and contact patterns.

Fig 1: Locating Carbon Ceramic Brake Discs Wear Points

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: 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!

Fig 2: Identifying Carbon Ceramic Brake Disc Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Release both screws (1) and carefully feed carbon ceramic brake disc (2) out of brake caliper!

NOTE: Brake caliper is moved backwards on the stud bolt (see also REMOVING BRAKE CALIPER )!
If required, completely remove brake caliper and suspend on spring strut

Installation note:

Replace screws.

Tightening torque 34 11 1AZ .