Allroad Quattro V8-4.2L (BAS) (2004)
Brake Caliper: Service and Repair
Front Brake Caliper Piston (Brembo 18), Removing and Installing
Piston for front brake caliper, removing and installing
Special tools and equipment
^
3409 Assembly wedge
^
T10145 Piston resetting tool
Removing
-
Use compress air to press pistons out of brake caliper housing individually.
Note: Only one piston can be pressed out at a time. Hold the opposite piston in position in the brake caliper housing using a piston resetting tool
-a-.
Block the other pistons, e.g. using wooden blocks -b-. Place a wooden board -c- in front of the piston resetting tool to prevent the piston from
being damaged when being pressed out.
-
Remove sealing ring using assembly wedge 3409.
Note: Make sure the surface of the cylinder is not damaged during removal.
Installing
-
The surface of piston and sealing ring should be cleaned using only methylated spirits and then dried.
-
Thinly coat piston and sealing ring with assembly paste G 052 150 A2 before inserting.