Brake Caliper Piston

Brake Caliper Piston

Special tools, testers and auxiliary items required

• Resetting and Extracting Tool (T 10165)

• Trim Removal Wedge (3409)

Removing

- Remove piston from brake caliper by turning knurled wheel toward left.

Insert piston compressing and extracting tool so collar makes contact on piston.






• For pistons that are difficult to move, an open-end wrench (size 13 mm) can be applied at the appropriate wrench surface - arrow A -.

- Remove seal with (3409).






Installing

- The surface of the piston and seal must only be cleaned with mineral spirits and then dried.

- Thinly coat piston and seal with assembly paste G 052 150 A2 before inserting.

- Place protective cap with outer sealing lip on piston.






- Insert inner sealing lip in cylinder groove with (3409).

Hold piston in front of brake caliper for this procedure.






- Install the piston by turning knurled wheel toward right.

- Use special tool 10165/1 for assistance when installing.






• Insert piston compressing and extracting tool so collar makes contact on brake caliper.

• The automatic adjustment in brake caliper is destroyed when piston is moved with piston resetting tool (for example T 10145) or footbrake is operated.