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

🧭 Before you start

Remove the auxiliary heater exhaust bolts where fitted and the front noise insulation, then drain the oil. Unplug the oil gauge sender, detach the breather return hose and unbolt the bottom part of the sump. Clean both sealing faces completely, apply a thin sealant bead and fit the pan within the working time. Pre-tighten the bolts diagonally to 5 Nm, tighten them diagonally, then refill and check the oil level.

Fits: Audi A8 D2 (4D)

• Special tools named: V.A.G 1358
• Renewed: gaskets

Don't miss

• Sealant bead must not be thicker than shown; surplus can block the oil pump screen.
• Fit the bottom sump part within 5 minutes of applying sealant.
• Cut the tube nozzle at the front mark, about 3 mm.
• Pre-tighten all bolts diagonally to 5 Nm before final diagonal tightening.
• Wear safety goggles when brushing off old sealant; faces must be free of oil and grease.

Written for this job from the workshop steps below · TorqFix editorial.

🔧 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. On vehicles with auxiliary heater, screw out bolts (arrows) for attaching exhaust pipe of auxiliary/supplementary heater to noise insulation.
2. Unfasten quick-release fasteners (1) and detach front noise insulation.
3. Place used oil collector and extractorV.A.G 1782 or V.A.G 1358 A beneath engine.
4. Drain off engine oil.
5. Unplug connector (1) at oil gauge sender.

6. Detach crankcase breather return hose (2).
7. Unscrew bottom part of sump (arrow). [Note: Replace gaskets and seals.]
8. Use rotating plastic brush for example to remove sealant remnants at bottom and top part of sump.
9. ⚠ Wear safety goggles. — Clean sealing surfaces; surfaces must be free from oil and grease.
10. Cut off tube nozzle at front mark (∅ of nozzle approx. 3 mm).
11. Apply sealant bead (arrow) as shown to clean sealing surface of bottom part of sump. [Note: The sealant bead 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 bottom part of the sump must be fitted within 5 minutes.]
12. Fit bottom part of sump in position and pre-tighten all bolts diagonally to 5 Nm. — 5 Nm (3.7 lb-ft)
13. Diagonally tighten bolts for bottom part of sump.
14. Pour in engine oil and check oil level .

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