TorqFix

Adapting functions and components — VW

Adapting functions and components on VW: 15 steps, engines ACK, ADR, AEB, AFB. What to remove, in what order, and what to check after.

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

15 steps 40 engine codes engine codes merged from 32 documented variants

🧭 Before you start

Fits: VW Passat B5 (3B)

  • Special tools named: VAS 5051

📋 Procedure

  1. Connect vehicle diagnosis, testing and information systemVAS 5051 as follows:
  2. Pull cover off in direction of arrow.
  3. Connect diagnosis cableVAS 5051/5A or VAS 5051/6A to diagnosis connection.
  4. Connect diagnosis cableVAS 5051/5A or VAS 5051/6A to diagnosis connection.
  5. Switch on tester (arrow).
ACK? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Switch ignition on.
  2. Touch field "“Guided fault finding”" on screen.
  3. Select one after the other:
  4. Confirm data.
  5. Press "“GoTo”" button.
  6. Select "“Function/component selection”".
  7. Then press "“Drive (Rep. Gr. 01;10…26; 28…39)”".
  8. Select respective engine code.
  9. Select respective repair group, depending on what requires testing.
  10. Depending on test, select the component or functions via "“Functions”" or "“Electrical components”" on the screen.

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.