Audi Workshop Service and Repair Manuals
HOME
FEATURES
MENU
INDEX
ABOUT US
Renewing protective caps and guide pins - FBC brakes >
< Servicing brake caliper - FBC brakes
A4 Mk3
Brake system
Brakes, hydraulics, regulator, servo
Servicing brake caliper - FBC brakes
Removing and installing piston for front brake caliper- FBC brakes
Removing and installing piston for front brake caliper- FBC brakes
Removing and installing piston for front brake caliper- FBC brakes
Removing
Special tools and workshop equipment required
t
Assembly paste -G 052 150 A2-
t
Removal wedge -3409-
t
Piston resetting appliance -T10145-
–
Force piston out of brake caliper housing using compressed air.
Note
Place a piece of wood in the recess to prevent damaging the piston.
–
Take out seal.
–
To do so, use removal wedge -3409-.
Note
When removing ensure that the bore of the cylinder is not damaged.
Installing
–
The surface of the piston and seal should be cleaned using only methylated spirits and then dried.
–
Apply a thin coat of assembly paste -G 052 150 A2- to piston and seal before inserting.
–
Insert inner seal into groove
-arrow-
in brake caliper.
–
Push protective cap onto brake caliper housing and press it in so that it makes contact all round.
–
At this stage it should not be possible to remove the protective cap from the brake caliper housing by hand.
–
Apply a thin coat of assembly paste -G 052 150 A2- 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.
–
Press brake piston into caliper using piston resetting appliance -T10145-.
Keep the piston straight to avoid damaging the seal.
Note
The inner sealing lip on the protective cap will then locate in the piston groove.
Brake system
Brakes, hydraulics, regulator, servo
Servicing brake caliper - FBC brakes
Removing and installing piston for front brake caliper- FBC brakes
Renewing protective caps and guide pins - FBC brakes >
< Servicing brake caliper - FBC brakes