Installing oil return line with oil reservoir: Audi A6 C6 5.0 (BUH)

🧭 Before you start

Fits: Audi A6 C6 (4F, 2004–2011)

Don't miss

• Disregard (items 1, 2).
• Do not reuse the oil return line.

🔧 Engine codes this applies to

📋 Procedure

1. Remove noise insulation panels (1) and (2)50.
2. Unscrew nuts (arrows) on both sides evenly and lower anti-roll bar. [Note: Disregard (items 1, 2).] [Note: Lay a cloth under the separating point to catch escaping engine oil.]
3. Remove nuts (1) and bolt (3).
4. Detach oil return hoses (arrows) and oil return line (2). [Note: Do not reuse the oil return line.]
5. Remove bolts (1).

6. Detach oil return line (2) and disconnect air hose (arrow). [Note: Do not reuse the oil return line.]
7. Remove bolts (arrows).
8. Place new oil return line (2) with oil reservoir in installation position.
9. Install air hose (arrow) (replace spring-type clip with hose clip).
10. Bolt oil return line with new seal onto turbocharger.
11. Install new oil return line (2).
12. Secure oil reservoir with new bolts (arrows).
13. Install anti-roll bar 40.
14. Check oil level 405.

Other AUDI procedures

• Allocation of main bearing shells for new crankshaft
• 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
• Removing and installing backrest cover and padding - split rear seat backrest with load-through hatch
• Removing and installing high-pressure pump - engine code CAPA
• Checking fuel system pressurisation pump G6 (electrical test) - A5 up to model year 2011, A4 up to model year 2012 (vehicles with front-wheel drive)
• Removing and installing starter - vehicles with 3.0 ltr. TFSI and 3.2 ltr. FSI engine