Removing and installing poly V-belt pulley with a freewheel, manufacturer: Bosch — VW
Removing and installing poly V-belt pulley with a freewheel, manufacturer: Bosch on VW: 14 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 Polo 9N (2001–2009)
- Special tools named: 17 mm ring spanner, torque wrench
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- Loosen threaded connection by turning clockwise. Counterhold with ring spanner when doing this.
- Counterhold using adapterVAS 3400 and 17 mm ring spanner.
📋 Procedure
- Remove alternator.
- Clamp alternator in vice at brackets.
- Remove protective cap from poly V-belt pulley with freewheel.
- Insert multi-point adapterVAS 3400 with 17 mm ring spanner in alternator poly V-belt pulley with freewheel.
- Insert multi-point attachment M10 (1) in alternator shaft.
- Loosen threaded connection by turning clockwise. Counterhold with ring spanner when doing this.
- Hold poly V-belt pulley with freewheel by hand. Turn drive shaft of alternator until poly V-belt pulley with freewheel can be removed.
- First screw poly V-belt pulley with freewheel by hand as far as stop onto alternator drive shaft.
- Release connector (1) and pull it off grip (2).
- Turn grip (2) of torque wrench through 180 degrees and reinsert socket drive.
- Set turning direction of torque wrench to anti-clockwise on socket drive.
- Insert multi-point attachment M10 (1) in alternator shaft.
- Counterhold using adapterVAS 3400 and 17 mm ring spanner.
- Tighten poly V-belt pulley with freewheel by turning alternator drive shaft anti-clockwise using torque wrenchV.A.G 1332.
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
- Flange with rotor - insert under pressure · 5 torque figures
- Introduce flange with rotor under pressure · 5 torque figures
- Continuation for all versions · 6 torque figures
- Installation of the the flange with the rotor of the Engine speed sensor G28 · 4 torque figures
- VW variant -A CFNA/CFNB oil pump replacement · 4 torque figures
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.