Audi A6 2005 Workshop Manual page 147

– 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.
– Hold piston with standard extension and ratchet attachment
as shown in illustration and press lightly onto 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
– Press piston into brake caliper housing by hand.
Note
The inner sealing lip on the protective cap will then locate in the
piston groove.
Note
After servicing and installing brake caliper, bleed brake system
⇒ page 154 .
Audi A6 2005 ➤ , Audi A6 Avant 2005 ➤
Brake system - Edition 04.2019
4. Brake calipers 2FNR 42 AL
141