Volkswagen Passat 1995 Official Factory Repair Manual page 3546

Front brake caliper, servicing (Teves/Ate)
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.SU01.47.3
Fig. 1 Piston, pressing out of cylinder using
compressed air
Note:
Place a piece of wood in the recess to prevent
damaging the piston.
Fig. 2 Piston seal, removing
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12/7/2004