Audi A6 2005 Workshop Manual page 150

Audi A6 2005 ➤ , Audi A6 Avant 2005 ➤
Brake system - Edition 04.2019
– Take out seal.
– Item -1-: Piston resetting appliance -T10145-
Note
When removing ensure that the bore of the cylinder is not dam‐
aged.
Installing
WARNING
The brake pistons have different diameters. When re-installing,
please make sure that each of the brake pistons is inserted in
the correct aperture in the brake caliper.
– The surface of the piston and seal should be cleaned using
only methylated spirits and then dried.
– Apply a small amount of assembly paste to piston and seal
before inserting.
– Insert inner seal in groove in brake caliper housing with re‐
moval wedge 3409.
– Press in protective cap with special tool -1- and -2-.
– Item -1-: Assembly tool for protective caps -T10146/5-
– Item -2-: Piston resetting appliance -T10145-
– Push protective cap onto brake caliper housing and press it
on so that it makes contact all round.
Use jaw protectors
– At this stage it should not be possible to remove the protective
cap from the brake caliper housing by hand.
– Apply a small amount of assembly paste to piston and seal
before inserting.
– Press brake piston lightly against protective cap.
Keep the piston straight to avoid damaging the seal.
– Inflate protective cap with compressed air (maximum 3 bar).
The protective cap will then locate around the brake piston.
Use jaw protectors
144
Rep. gr.47 - Brakes - hydraulics