SEAT Workshop Service and Repair Manuals

Removing and installing pistons for front brake calliper Consult the equivalence table for tools and equipment according to applicability between Seat / VW / Audi / Skoda → Chapter. Special tools and workshop equipment required

t  Removal wedge -3409-, see equivalent → Anchor

t  Piston resetting tool -T10145 -, see equivalent → Anchor t  Assembly paste → Spare parts catalogue Removal:

–  Force piston out of brake calliper housing using compressed air.   Note Place a piece of wood in the cavity so that the piston does not get damaged.

–  Remove the seal ring. –  To do this use removal wedge -3409-.   Note When removing protect the cylinder from damage. Installation

–  Insert sealing ring. –  To do this use removal wedge -3409-.

–  Fit the protective hood with the outer sealing lip over the piston. –  The piston and join ring surfaces can only be cleaned using alcohol and immediately dried. –  Before fitting the piston and seal ring, apply a thin coating of assembly paste → Parts catalogue

–  Using the removal wedge -3409-, insert the inner sealing lip into the groove of cylinder.   Note When doing this hold piston in front of calliper housing.

–  Insert the brake calliper piston using the tool - T10145 -.   Note The outer sealing lip of the protective cap will then locate in the groove on the piston.