FN 3 Brake Caliper, Servicing

Brake pads, removing and installing

Special tools and equipment required





^ VAG 1331 Torque wrench or equivalent
^ Piston resetting tool

Removing

Note: If reusing brake pads, mark location and fit in same position when installing, otherwise uneven braking may occur!





^ Remove protective caps (arrows).





^ Using a screwdriver, pry brake pad retaining spring out of brake caliper housing (arrow) and remove.





^ Remove both guide pins (arrows) from brake caliper.
^ Remove brake caliper housing and secure with wire so that weight of brake caliper does not stress or damage brake hose.
^ Remove brake pads from brake caliper housing or from brake carrier.
^ Clean brake caliper housing, especially bonding surface for brake pad. Surfaces must be free of adhesive or grease residue.

Installing





Brake pads with specified direction of rotation
1 - Right-hand side piston brake pad
2 - Left-hand piston side brake pad with pad wear sensor
3 - Pad wear sensor connector

Note: Before inserting new brake pads, press the piston back into the cylinder with the piston resetting tool. Before pressing the piston back, draw off brake fluid from the brake fluid reservoir with a bleeder baffle. particularly if reservoir has been topped up, fluid will overflow and cause damage.





^ Press piston back.
^ Insert inner brake pad.





When the brake pad is installed, the arrow on the brake pad backing plate -A- must point downward. Ensure that the brake pad is installed correctly!
^ Install outer brake pad to brake carrier.
^ Pull protective foil off outer brake pad backing plate.





^ Install brake caliper housing with both guide pins (arrows) to brake carrier.
^ Install both protective caps.
^ Insert retaining spring into brake caliper housing.

Note: After replacing the brake pads, depress the pedal firmly several times with the vehicle stationary so that the brake pads are properly seated in their normal operating position.