Preparing work on the carbon ceramic brake

NOTE: TECHNICAL INFORMATION
Work on the carbon-ceramic brake disc may be performed exclusively by specially trained service personnel.
The service personnel must have received the proper training.

NOTE: TECHNICAL INFORMATION
Carbon-ceramic brake discs may not be modified/manipulated.
Retightening or disassembling brake components is not permitted.
Bore holes may not be mechanically processed. Counter-boring is not permitted.

When working on the brake system, proceed with particular caution and observe all NOTES .
The brake system is one of the most important safety systems on any vehicle.
Only remove and install wheels with the aid of the wheel jack.
This avoids damage to the carbon ceramic brake disc and brake caliper.
Ensure that the carbon ceramic brake disc is not subject to any impact stresses or collisions with hard materials.

This avoids damage to the ceramic surfaces and edges.

Ensure that the contact surfaces of the hub and the contact surfaces of the rim are not damaged.

Check

Check carbon ceramic brake disc for wear.

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: TECHNICAL INFORMATION
For additional information, see: REFERENCE SAMPLE CATALOG FOR ASSESSING VISUAL QUALITY OF CARBON CERAMIC BRAKE DISCS IN NEW CONDITION or REFERENCE SAMPLE CATALOG FOR ASSESSING VISUAL QUALITY OF CARBON CERAMIC BRAKE DISCS IN USED CONDITION .

Result

» Spalling on the edges of the friction ring of the carbon ceramic brake disc exceed permitted amount.

Brake discs which have been subjected to a high impact stress, such as from having fallen, must no longer be used. The brake disc is unusable due to visible and non-visible damage!

Measure

For additional information, see: REFERENCE SAMPLE CATALOG FOR ASSESSING VISUAL QUALITY OF CARBON CERAMIC BRAKE DISCS IN NEW CONDITION or REFERENCE SAMPLE CATALOG FOR ASSESSING VISUAL QUALITY OF CARBON CERAMIC BRAKE DISCS IN USED CONDITION .

Check

NOTE: TECHNICAL INFORMATION
Brake cleaner may not be used.

Check carbon ceramic brake discs for dirt.

Result

» The carbon ceramic brake disc is very dirty.

Measure

For additional information, see: REFERENCE SAMPLE CATALOG FOR ASSESSING VISUAL QUALITY OF CARBON CERAMIC BRAKE DISCS IN USED CONDITION .

Measure

Only if required: While observing the Safety Instructions, clean carbon ceramic brake disc with a high pressure cleaner.

Measure

For stubborn dirt in the bores: Carefully clean the bores manually with a suitable auxiliary tool (e.g. punch).