TorqFix

RS6 (4F) BUH ancillary drive belt — AUDI

RS6 (4F) BUH ancillary drive belt on Audi: 28 steps, engines BUH. What to remove, in what order, and what to check after.

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

28 steps 1 engine code

🧭 Before you start

Fits: platform code RS6

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  • At removal, mark the direction of rotation; when refitting ensure the drive belt rotates in the same direction

🔧 Engine codes this applies to

BUH

📋 Procedure

  1. Remove the front bumper cover
  2. Remove the cover
  3. Remove the bolt
  4. Note: Do not disconnect
  5. Remove the bolt
BUH? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Note: Do not disconnect
  2. Disconnect the electrical connector
  3. Note: Do not disconnect
  4. Disconnect the electrical connector
  5. Note: Do not disconnect
  6. Disconnect the electrical connector
  7. Remove the bolts
  8. Remove the cover
  9. Loosen the bolts
  10. Note: Do not remove
  11. Loosen the bolts
  12. Note: Do not remove
  13. Remove the nuts
  14. On both sides
  15. Disconnect the power steering oil cooler hose
  16. Secure to the vehicle
  17. Turn the special tool clockwise
  18. Torx:
  19. Turn the tensioner anti-clockwise
  20. Remove the ancillary drive belt
  21. Note: At removal, mark the direction of rotation; when refitting ensure the drive belt rotates in the same direction

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

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Workshop data on this page last updated 20 Sep 2026.