Wear Assessment By Checking Thickness Of Brake Disc - Audi A6 2005 Workshop Manual

---------
----------
----------
----------
----------
----------
----------
----------
If one of the three wear limits defined below has been reached,
do NOT continue using the brake disc.
The brake disc must be renewed.
WARNING
If one brake disc is damaged or worn, the other discs must also
be checked for damage and wear.
3.1 Wear assessment by checking thick‐
ness of brake disc
Special tools and workshop equipment required
♦ Use a commercially available caliper gauge or micrometer
gauge.
The minimum permissible thickness of the brake disc is engraved
as "min.th." on the brake disc hub.
– Measure the brake disc thickness -x- at three points on the
periphery next to the individual wear indicators.--
Note
If the thickness is x = min. th. + 0.2 mm, additionally check the
wear of the brake disc by inspecting the wear indicators
⇒ page 14 .
If the thickness of the brake disc is less than or equal to the min‐
imum permissible thickness "min.th.", do NOT continue using the
brake disc. The brake disc must be renewed.
WARNING
If one brake disc is damaged or worn, the other discs must also
be checked for damage and wear.
3.2 Wear assessment by checking thick‐
ness of brake disc
Brake disc with minimum weight stamped on hub:
Special tools and workshop equipment required
♦ Use a commercially available caliper gauge or micrometer
gauge.
↓↓
3. Weighing brake disc
⇒ page 15
Minimum weight not reached
↓↓
Brake disc OK
Minimum weight reached
↓↓
Renew brake disc
Audi A6 2005 ➤ , Audi A6 Avant 2005 ➤
Brake system - Edition 04.2019
3. Assessing degree of wear on ceramic brake discs
13