Separating front exhaust pipe and front silencer — AUDI
Separating front exhaust pipe and front silencer on Audi: 5 steps, 1 torque figure, engines ASN, BBJ, BDX, BKH.
Workshop procedure for AUDI — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: Audi A8 D3 (4E, 2002–2010)
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- Install clamps so that the bolt ends do not protrude beyond bottom of clamp.
- Before tightening bolt connection, align exhaust system free of stress .
🔩 Torque settings
Values can differ between engine variants — check the code stamped on your block.
| Torque | Fastener / step |
|---|---|
| 23 Nm (17 lb-ft) | Tighten bolt connections of 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
- ⚠ Wear safety goggles. — Separate the relevant exhaust pipe using the chain tube cutterVAS 6254 to cut at a right angle; cutting location is shown in illustration (arrows).
- Position the relevant clamp so that it aligns with centre of cutting location (arrows).
- Install clamps so that the bolt ends do not protrude beyond bottom of clamp.
- Before tightening bolt connection, align exhaust system free of stress .
- Tighten bolt connections of clamps evenly to 23 Nm. — 23 Nm (17 lb-ft)
Other AUDI procedures
- Renewing valve stem oil seals with cylinder head removed
- Removing and installing fuel delivery unit (left-side) with fuel system pressurisation pump G6
- Removing and installing fuel delivery unit (right-side) with fuel pump G23
- Removing and installing coolant pipe (left-side) – Audi Q7
- Checking secondary air pump relay J299 and activation – Audi
- Removing and installing toothed belt – Audi · 56 torque figures
- Removing engine – Audi A8 D3 · 41 torque figures
- Removing camshaft timing chain from camshafts – Audi A6/A7 C7 · 38 torque figures
- Installing engine – Audi A8 D4 · 36 torque figures
- Removing and installing camshaft timing chain · 29 torque figures
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.