Brake Pads: Checking Thickness - Audi R8 2015 Maintenance Manual

3.15

Brake pads: checking thickness

Special tools and workshop equipment required
♦ Test pin - T40139- : Use the side with the thin probe (brake
symbol) to measure brake pad thickness.
♦ Metal ruler
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Table of test values and procedure guidelines: with respect to the correctness of information in this document. Copyright by AUDI AG.
Brake version
Front axle:
Steel
Ceramic
Rear axle:
Steel
Ceramic
Check only the thickness of the outer brake pads.
Step 1 - checking brake pads, front axle:
– Before you begin: Push sliding ring towards tip of test pin as
far as it will go.
– Bring tip of test pin into contact with brake disc.
– Slide test pin towards brake pad until test pin makes contact
with backplate of brake pad.
– Remove test pin and read off brake pad wear value -a- from
scale on tool.
– Repeat procedure on opposite side of vehicle.
– If brake pad thickness has reached wear limit (see table of test
values and procedure guidelines
pads ⇒ Rep. gr. 46 ; Brake system; Removing and installing
brake pads .
Step 2 - checking brake pads, rear axle:
– Remove rear wheels.
Brake pad wear limit including backplate, not including
damper plate
[mm]
8.5
8.5
8.5
8.5
⇒ page 27 ): Renew brake
Audi R8 2015 ➤
Maintenance - Edition 03.2016
3. Maintenance
27