Removing and installing brake caliper piston FN 3: VW Golf Cabriolet
Step-by-step removing and installing brake caliper piston FN 3 for the VW Golf Cabriolet: 12 steps. What to remove, in what order, and what to check after.
Workshop procedure for VW — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: VW Golf Cabriolet (517, 2011–2016)
- Special tools named: 3409, T10146/6
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- The surfaces of the piston and seal must be cleaned only with methylated spirits and then dried.
📋 Procedure
- Press piston out of brake caliper using compressed air.
- Lever off protective cap from brake caliper using wedge 3409.
- Remove seal using wedge 3409.
- The surfaces of the piston and seal must be cleaned only with methylated spirits and then dried.
- Apply a thin coat of assembly paste G 052 150 A2 to piston and seal before inserting.
- Insert seal into brake caliper.
- Insert protective cap (A) in assembly tool T10146/6 (1).
- Using assembly tool (1) and piston resetting tool (2), press protective cap onto brake caliper so that it is fully in contact all around brake caliper.
- At this stage it should not be possible to remove protective cap from brake caliper by hand.
- Press piston lightly onto protective cap and lock it in this position using assembly wedge (2), for example.
- Blow air into protective cap using compressed air (max 3 bar) (1). During this step protective cap will spring on piston.
- Press piston into brake caliper using piston resetting tool (1).
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Who makes these pages, and how
TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.