TorqFix

Removing and installing poly V-belt, 4-cylinder diesel engine — AUDI

Removing and installing poly V-belt, 4-cylinder diesel engine on Audi: 18 steps. 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.

18 steps

🧭 Before you start

Fits: platform codes 70A, 7DA

Don't miss

  • When fitting used poly V-belts observe the direction of rotation marked on removal!When fitting belt, ensure that poly V-belt seats correctly in pulleys!
  • Push alternator down at least 3 times onto stop with tensioning lever3297 to ensure the alternator moves freely.
  • When tightening keep to the following sequence, do not use the alternator for support and do not touch poly V-belt.

📋 Procedure

  1. Unscrew alternator securing bolts (1) and (2) at least one turn.
  2. Lower alternator with tensioning lever3297 and remove poly V-belt from alternator pulley.
  3. Removing V-belt for power assisted steering vane pump Running gear, axles, steering from January 199648Repairing power assisted steering . [Note: When fitting used poly V-belts observe the direction of rotation marked on removal!When fitting belt, ensure that poly V-belt seats correctly in pulleys!]
  4. Fit poly V-belt to crankshaft pulley, vibration damper and coolant pump pulley.
  5. Installing V-belt for power assisted steering vane pump Running gear, axles, steering from January 199648Repairing power assisted steering .
AUDI? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Lower alternator with tensioning lever3297 and place poly V-belt on alternator pulley.
  2. Push alternator down at least 3 times onto stop with tensioning lever3297 to ensure the alternator moves freely.
  3. With alternator still detached, allow engine to run at idling speed for at least 10 seconds.
  4. Switch off engine and tighten alternator securing bolts.
  5. Tighten threaded connections to specified torque settings . [Note: When tightening keep to the following sequence, do not use the alternator for support and do not touch poly V-belt.] [Note: Before removing, mark the top side and direction of rotation of the poly V-belt. When installing, ensure correct fitting position and direction of rotation. If the belt is installed in the wrong position or against direction of rotation, the belt will be destroyed!]
  6. Lift tensioning roller with poly V-belt lever3299 and remove poly V-belt from alternator belt pulley.
  7. Removing V-belt for power assisted steering vane pump Running gear, axles, steering from January 199648Repairing power assisted steering .
  8. Remove poly V-belt. [Note: When fitting used poly V-belts observe the direction of rotation marked on removal!When fitting belt, ensure that poly V-belt seats correctly in pulleys!]
  9. Fit poly V-belt to crankshaft pulley/vibration damper and coolant pump pulley.
  10. Lift tensioning roller with poly V-belt lever3299 and fit poly V-belt onto alternator belt pulley.
  11. Lower tensioning roller onto poly V-belt with poly V-belt lever3299.
  12. Installing V-belt for power assisted steering vane pump Running gear, axles, steering from January 199648Repairing power assisted steering .
  13. Start engine and check belt running.

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.