Poly-V belt pulley, with free spin in the alternator (Manufacturer Bosch) - remove and install — VW

🧭 Before you start

Fits: platform codes 6A1, 6A5

• Special tools named: VAG 1332, torque wrench

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• The insertion element (1) must be removed from the rod (2) .

🔩 Torque settings

Values can differ between engine variants — check the code stamped on your block.

ℹ️ Always cross-check the exact figure against your vehicle's factory manual before final tightening — a wrong torque can damage the engine. These values are extracted from workshop data and may not cover every variant or revision.

📋 Procedure

1. Remove the alternator .
2. Fasten the alternator in the fastening points in a vise.
3. If installed, remove the free-spin poly-V belt pulley protection cover.
4. Insert the Multiple adapter T10474(1) in the alternator pulley along with the ring spanner (17 mm).
5. Insert the internal hex socket or TORX (2) in the alternator shaft.

6. Spin the alternator shaft clockwise (left thread), holding it with the ring spanner.
7. Manually immobilize the alternator pulley and turn its axle until the pulley can be removed.
8. The insertion element (1) must be removed from the rod (2) .
9. Turn the rod(2) to 180° and reinsert the insertion element.
10. Adjust the torque wrench spinning direction in the insertion element to the left.
11. First, manually install the free-spin alternator pulley until the stop.
12. Insert the Multiple adapter T10474(1) in the alternator pulley along with the ring spanner (17 mm).
13. Insert the internal hex socket or TORX (2) in the alternator shaft.
14. Turn the alternator axle using the "Torque wrench - 40 to 200 Nm (fit. 1/2"")"VAG 1332(3) anticlockwise to tighten the free-spin Poly-V belt pulley. — 200 Nm (148 lb-ft)
15. Tighten the fastening nut to a torque of 80 Nm. — 80 Nm (59 lb-ft)

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