Flange with rotor - insert under pressure — VW

🧭 Before you start

• Special tools named: VAG 1331, torque wrench, feeler gauge

Don't miss

• The internal part of the Fitter and the assembly case must be on the same plane.
• Do not remove the rotor from the flange nor change its position in relation to the latter.
• Make sure the flange is flat and totally supported on the Fitter.
• Make sure the rotor remains fastened to the Fitter T10017 during the flange installation.
• Insert the Allen screws (A) into approx. 5 threads on the crankshaft flange.

🔩 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. Move the hexagonal nut (A) just before the tightening flat surface (B) of the threaded spindle.
2. Fasten the Fitter by the tightening surface (B) of the threaded part on a vise.
3. Press the assembly case (C) downwards, so that it is supported on the hexagonal nut (A)(arrow). [Note: The internal part of the Fitter and the assembly case must be on the same plane.]
4. Remove the safety clip (A) from the new flange. [Note: Do not remove the rotor from the flange nor change its position in relation to the latter.]
5. Place the flange on a flat and clean surface, with the supporting side in the engine case facing upwards.

6. Press the sealing lip thrust ring (A) downwards in the arrow direction until it lies on the flat surface.
7. Place the flange's front part on the Fitter, in order that the guide pin (A) is inserted into the rotor's hole (B). [Note: Make sure the flange is flat and totally supported on the Fitter.]
8. Press the sealing lip thrust ring (B) while tightening the three screws (A) against the Fitter surface, so that the guide pin can no longer escape from the rotor's hole. [Note: Make sure the rotor remains fastened to the Fitter T10017 during the flange installation.]
9. Screw the hexagonal nut (A) up to the end of the threaded part.
10. Press the threaded part of the Fitter in the direction of the arrow until the hexagonal nut (A) touches the assembly case (C).
11. Align the flat side of the assembly case with the sealing surface on the side of the block oil crankcase.
12. Screw the Fitter with Allen screws (A) to the crankshaft flange. [Note: Insert the Allen screws (A) into approx. 5 threads on the crankshaft flange.]
13. Screw two screws M 6 × 35 mm (A) to guide the flange on the engine block.
14. Move the assembly case (A) manually in direction of the arrow until the sealing lip thrust ring (B) touches the crankshaft flange (C). [Note: The guide pin (D) of the Fitter is inserted into a threaded hole on the crankshaft during assembly. Thus, the definitive rotor assembly position is determined.]
15. Keep the assembly case in this position and manually tighten Allen screws of the assembly device.
16. Insert the hexagonal nut (E) into the threaded hole until it touches the assembly case (A).
17. Tighten the Fitter hexagonal nut with the Torque wrench - 5 to 50 Nm (enc. 1/2")VAG 1331 and Open socket SW 24VAG 1332/11. Tightening torque: 35 Nm. [Note: After tightening the hexagonal nut with 35 Nm, there must still be a small gap between the engine block and the flange.] — 50 Nm (37 lb-ft)
18. Screw the hexagonal nut (A) up to the end of the threaded part.
19. Remove screws M 6 × 35 mm (B) from the engine block.
20. Remove the three screws (C) from the flange.
21. Remove the fitter.
22. Remove the sealing lip thrust ring.
23. Place the Vernier caliper spindle against the crankshaft flange (A) (splined surface).
24. Measure with a feeler gauge (A) the distance (a) between the Vernier caliper spindle and the rotor.
25. Press rotor again
26. Remove the fitter.
27. Screw the sealing flange fastening screws alternately in a cross pattern. Tightening torque: 10 Nm. — 10 Nm (7.4 lb-ft)
28. Install the engine speed sensor (arrow). Tightening torque: 5 Nm. — 5 Nm (3.7 lb-ft)
29. Install oil crankcase .
30. Install the intermediate plate.
31. Install the flywheel with new screws.
32. Move the assembly case (A) manually in the flange direction (B).
33. Install two screws M 6 × 35 mm (A) to guide the flange (B) on the engine block.
34. Screw the hexagonal nut (D) manually to the threaded part until it lies on the assembly case (A).
35. Tighten hex nut on the assembly device with Torque wrench - 5 to 50 Nm ( enc. 1/2")VAG 1331 and open mouth wrenchV.A.G 1332/11: Tightening torque: 40 Nm. — 50 Nm (37 lb-ft)
36. Check the assembly position of the rotor on the crankshaft again .
37. Tighten the fitter hexagonal nut to 45 Nm once more. — 45 Nm (33 lb-ft)
38. Check the assembly position of the sensor rotor on the crankshaft again.

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