TorqFix

Removing and installing rear silencer — VW

Removing and installing rear silencer on VW: 15 steps, engines CFNA, CFNB, CHYA, CHYB. 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.

15 steps 40 engine codes engine codes merged from 17 documented variants

📋 Procedure

  1. Observe safety precautions when working on the high-voltage system (see the separate procedure).
  2. Disconnect electrical connector (1).
  3. Unscrew bolts (2).
  4. Remove engine compartment cooling fan V116(3).
  5. Remove service flap for luggage compartment General body repairs, exterior 66. Mouldings/trims/extensions.
CFNA? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Disconnect electrical connector (1).
  2. Remove wiring harness (2) from retainer, and place it to one side.
  3. Remove clamp (3).
  4. Remove nuts (2).
  5. Remove bolts (1).
  6. Loosen clamp (1) for exhaust pipe.
  7. Remove nuts (2 and 3).
  8. Remove rear silencer (4) through service flap in luggage compartment.
  9. Align exhaust pipe relative to underbody, and tighten clamp.
  10. Re-energise high-voltage system 93Re-energising high-voltage system.

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

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Workshop data on this page last updated 20 Sep 2026.