Audi A8 2003 Workshop Manual page 111

– Press brake piston onto stop in brake caliper after passing the
compressor nut.
Note
Make sure not to damage the compressor nut.
– Piston resetting appliance -T10145- can also be used to press
in the brake piston.
– Make sure that the protective cap is located in the groove of
the brake piston when the piston is pressed in all the way.
– Insert pad retaining springs.
– Measure the pad thicknesses of both brake pads without back‐
plates and make a note of the lower value.
Note
Round off the measured value to a whole number. The value
should be between 3 and 14. Use new brake pads if the measured
value is less than 3.
– Fit brake pads.
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6. Rear brake calipers for electronic parking brake and handbrake (EPB)
Audi A8 2003 ➤
Brake system - Edition 03.2013
105