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Disconnecting centre silencer and rear silencer - vehicles with four-wheel drive — AUDI

Disconnecting centre silencer and rear silencer - vehicles with four-wheel drive on Audi: 5 steps, 1 torque figure, engines AMB, AVJ, BEX, BFB.

Workshop procedure for AUDI — the exact step sequence and torque figures, straight from real workshop data.

5 steps 12 engine codes 1 torque figure

🧭 Before you start

Fits: Audi A4 Cabriolet B6/B7 (8H), Audi A4 B6/B7 (8E)

Don't miss

  • The middle indentation (of three) on the exhaust pipe is the cutting point.
  • Fit clamps so that ends of bolts do not protrude beyond bottom of clamp.

🔧 Engine codes this applies to

🔩 Torque settings

Values can differ between engine variants — check the code stamped on your block.

TorqueFastener / step
40 Nm (30 lb-ft)Tighten bolts on clamps evenly

ℹ️ Always cross-check the exact figure against your vehicle's factory manual before final tightening — a wrong torque can damage the engine. These values are extracted from workshop data and may not cover every variant or revision.

📋 Procedure

  1. Cut through exhaust pipes at a right angle at cutting point (arrows) using chain pipe cutterVAS 6254. [Note: The middle indentation (of three) on the exhaust pipe is the cutting point.]
  2. When reassembling, position the clamps (1) and (2) centrally over the cutting point.
  3. Fit clamps so that ends of bolts do not protrude beyond bottom of clamp.
  4. Align exhaust system so it is free of stress .
  5. Tighten bolts on clamps evenly to 40 Nm. — 40 Nm (30 lb-ft)

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.