Removing and installing piston for brake caliper FN 3: VW Touran I

🧭 Before you start

Fits: VW Touran I (1T, 2003–2015)

Don't miss

• The surfaces of the piston and seal must be cleaned only with methylated spirits and then dried.
• Apply thin coat of assembly pasteG 052 150 A2 to piston and seal before installing.

📋 Procedure

1. Press piston out of brake caliper using compressed air.
2. Lever off protective cap from brake caliper using removal wedge3409.
3. Remove seal using removal wedge3409.
4. The surfaces of the piston and seal must be cleaned only with methylated spirits and then dried.
5. Apply thin coat of assembly pasteG 052 150 A2 to piston and seal before installing.

6. Insert seal into brake caliper.
7. Fit protective cap (A) in assembly tool T10146/6(1).
8. Press protective cap onto brake caliper so that seal is fitted correctly all around using assembly tool (1) and piston resetting appliance T10145(2).
9. At this stage it should not be possible to remove protective cap from brake caliper by hand.
10. Press piston lightly onto protective seal and lock it in this position using assembly wedge (2), for example.
11. Blow out protective cap using compressed air (max 3 bar) (1). During this step protective cap will spring on piston.
12. Press piston into brake caliper using piston resetting tool T10145(1).

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