TorqFix

Installing upper sump: VW Passat B5 4.0 (BDN, BDP)

Step-by-step installing upper sump for the VW Passat B5 4.0 (BDN/BDP): 5 steps, 1 torque figure. What to remove, what to tighten and to how many Nm, what.

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

5 steps 2 engine codes 1 torque figure

🧭 Before you start

Fits: VW Passat B5 (3B)

🔧 Engine codes this applies to

🔩 Torque settings

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

TorqueFastener / step
40 Nm (30 lb-ft)Tighten sump/gearbox bolts

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. Fit the upper sump with a new seal and install it.
  2. Tighten bolts in sequence shown and observe the different lengths of the bolts:
  3. Tighten sump/gearbox bolts to 40 Nm. — 40 Nm (30 lb-ft)
  4. Install subframe: Running gear, axles, steering - front and four-wheel drive40Repairing front suspension; Removing and installing subframe
  5. Install poly V-belt .

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.