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Removing and installing tunnel cross member - vehicles with 6-cyl. and 8-cyl. petrol engine, 6-cyl. TDI engine from 09.2008 onwards — AUDI

Removing and installing tunnel cross member - vehicles with 6-cyl. and 8-cyl. petrol engine, 6-cyl. TDI engine from 09.2008 onwards on Audi: 13 steps.

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

13 steps

🧭 Before you start

Fits: Audi A6 C6 (4F, 2004–2011)

Don't miss

  • To prevent damage, the flexible joints in the front exhaust pipe must not be bent further than 10°. — Tie up front exhaust pipe (right) to the side or support from below.

📋 Procedure

  1. Release fasteners marked (1, 2) and (arrow) (if fitted) and remove noise insulation panels.
  2. Unscrew bolts (1 … 3) and remove rear bracket for front exhaust pipe.
  3. Loosen clamps (1) and (2).
  4. Remove front exhaust pipe with catalytic converter (left-side) 26.
  5. ⚠ To prevent damage, the flexible joints in the front exhaust pipe must not be bent further than 10°. — Tie up front exhaust pipe (right) to the side or support from below.
AUDI? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Remove front cross member (arrows).
  2. Apply lifting column of engine and gearbox jackV.A.G 1383 A at transfer box behind tunnel cross member (place a block of wood between lifting column and transfer box).
  3. ⚠ Do not apply the lifting column with the block of wood under the oil pan of the gearbox.If a load is applied to the oil pan it will be damaged and will have to be renewed. — Use engine and gearbox jackV.A.G 1383 A to lift gearbox up slightly.
  4. Remove bolts (arrows) for tunnel cross member.
  5. Remove nuts (1).
  6. Remove tunnel cross member.
  7. Install tunnel cross member (2)40
  8. Install front exhaust pipe with catalytic converter (left-side) 26.

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.

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Workshop data on this page last updated 20 Sep 2026.