(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

NOTE: TECHNICAL INFORMATION
For additional information, see reference sample catalog for assessing visual quality of carbon ceramic brake discs in NEW and USED condition.
Ensure that the contact surfaces of the hub and the contact surfaces of the rim are not damaged

Check

NOTE: For additional information see: ASSESSING CARBON-CERAMIC BRAKE DISCS FOR WEAR .

Check carbon ceramic brake disc for wear

Courtesy of BMW OF NORTH AMERICA, INC.

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!

See ASSESSING CARBON CERAMIC BRAKE DISC FOR WEAR .

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

See reference sample catalog for assessing visual quality of carbon ceramic brake discs in NEW and USED condition.

Corrective measure

Only if required: While observing the applicable safety information, clean carbon ceramic brake disc with a high pressure cleaner.

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