Removing and installing top part of sump: Audi A8 D2 3.3 TDI (AKF)

🧭 Before you start

Fits: Audi A8 D2 (4D)

• Opens: coolant
• Renewed: gaskets

Don't miss

• Replace gaskets, oil seals and O-rings.
• Wear safety goggles. — Clean sealing surfaces; surfaces must be free from oil and grease.
• Cut off tube nozzle at front mark (∅ of nozzle approx. 3 mm).

🔧 Engine codes this applies to

🔩 Torque settings

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

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. Remove rear sealing flange .
2. Remove oil pump .
3. Remove turbochargers: Left , right .
4. Remove oil filter bracket with oil cooler .
5. Unscrew and lift off guide tube for dipstick at cylinder head (arrow).

6. Remove charge pressure control solenoid valves at left engine support .
7. Unscrew hydraulic pump .
8. Unscrew holder for hydraulic pump and air conditioner compressor .
9. Remove left engine support.
10. Unscrew left coolant drain pipe .
11. Screw out bolts (1) for top part of sump.
12. Press top part of sump off spring pins of cylinder block. [Note: Replace gaskets, oil seals and O-rings.]
13. Use rotating plastic brush for example to remove sealant remnants at top part of sump and cylinder block.
14. ⚠ Wear safety goggles. — Clean sealing surfaces; surfaces must be free from oil and grease.
15. Cut off tube nozzle at front mark (∅ of nozzle approx. 3 mm).
16. Apply sealant beads (1 ... 3) as shown to clean sealing surfaces of top part of sump. [Note: The sealant beads must not be thicker than indicated, as otherwise surplus sealant could ingress into the sump and clog the oil pump screen.After applying the sealant, the top part of the sump must be fitted within 5 minutes.Apply the sealant bead (1) with an inner radius (arrow) as shown. There is a bore in the cylinder block in this area.]
17. Fit top part of sump in position and pre-tighten all bolts for top part of sump/cylinder block diagonally to 5 Nm. — 5 Nm (3.7 lb-ft)
18. Tighten bolts (1) for top part of sump/cylinder block diagonally to 14 Nm. — 14 Nm (10 lb-ft)
19. Install oil pump .
20. Install front sealing flange .
21. Install rear sealing flange .
22. Fit drive plate .
23. Install bottom part of sump .
24. Install oil filter bracket with oil cooler .
25. Install turbochargers: Left , right .
26. Install engine .
27. Pour in engine oil and check oil level .

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