audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Chipping on ceramic brake discs > < Cracks in area of bolt connection on ceramic brake discs
Edge fractures
Edge fractures
On these models (8E and 8H), ceramic brakes are fitted only at the front.
   
Edge fractures -arrow- are caused by mechanical damage to the edges.
Permissible:
t  max. width / depth = 2 mm
t  max. length = 10 mm
t  max. 3 edge fractures per brake disc
If any of the criteria listed above are exceeded, the brake disc must be renewed.
Always renew brake discs on both sides of axle if:
t  renewal is necessary because of brake disc wear
t  there has been a technical modification to the replacement brake disc (indicated by changed part number).
Always renew brake discs on both sides of axle → Chapter.
When doing so, always renew the brake pads on both sides of the vehicle → Chapter.
  A00-10353

Chipping on ceramic brake discs > < Cracks in area of bolt connection on ceramic brake discs