Removing and installing Bosch poly V-belt pulley with freewheel — VW
Removing and installing Bosch poly V-belt pulley with freewheel on VW: 15 steps. 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.
🧭 Before you start
Fits: VW Golf V / Jetta (1K, 2003–2009); platform code AJ5
- Special tools named: 3400, torque wrench
Don't miss
- The direction of rotation of the alternatorC is marked by an arrow on the front label (direction of rotation of poly V-belt). Turn adapterVAS 3400 respectively when removing or installing.
- Loosen bolt by turning it opposite to direction marked on alternatorC, counterhold with a ring spanner.
- Use ring spanner to counterhold multi-point adapterVAS 3400.
📋 Procedure
- Remove alternatorC.
- Clamp alternatorC in a vice at securing points.
- Remove protective cap from poly V-belt pulley with freewheel. [Note: The direction of rotation of the alternatorC is marked by an arrow on the front label (direction of rotation of poly V-belt). Turn adapterVAS 3400 respectively when removing or installing.]
- Insert multi-point adapterVAS 3400 with ring spanner in alternatorC poly V-belt pulley with freewheel.
- Insert M10 multi-point bit (1) into alternator shaft.
- Loosen bolt by turning it opposite to direction marked on alternatorC, counterhold with a ring spanner.
- Hold poly V-belt pulley with freewheel stationary by hand and turn input shaft of alternatorC until poly V-belt pulley with freewheel can be removed.
- First screw poly V-belt pulley with freewheel on drive shaft of three-phase alternatorC by hand as far as limit stop.
- Release socket drive (1) and pull grip (2) off.
- Turn grip (2) of torque wrenchV.A.G 1332 180° and reinsert socket drive (1).
- Set turning direction of torque wrench at socket drive.
- Insert M10 multi-point bit (1) into alternator shaft.
- Use ring spanner to counterhold multi-point adapterVAS 3400.
- Tighten poly V-belt pulley with freewheel by turning alternatorC in direction of arrow marked on alternatorC using torque wrenchV.A.G 1332.
- Tighten threaded connections to specified torques .
Other VW procedures
- Removing engine · 41 torque figures
- Removing and installing camshaft – VW Golf Cabriolet · 47 torque figures
- Adjusting valve timing – VW Passat B5 · 83 torque figures
- Removing and installing camshafts – VW Passat B6 · 39 torque figures
- Removing and installing coolant pump · 53 torque figures
- Removing and installing theft-protected engine control units
- Removing, installing and adjusting brake light switchF and brake pedal switch F47 · 1 torque figures
- 6-speed manual gearbox 01E, four-wheel drive — Repairing gearbox housing
- Renewing window regulator, Cabriolet
- Removing and installing over-centre spring, Passat, Passat CC, CC, Touran to approx. 05.03 and Eos
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.