Installation of the the flange with the rotor of the Engine speed sensor G28 — VW

🔧 Engine codes this applies to

🔩 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.

📐 15 workshop diagrams for BKR

Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.

📋 Procedure

1. Install the hex nut (A) to just before the tightening flat surface (B) of the threaded spindle.
2. Fasten the Fitter on the tightening surface (B) of the threaded part in a vise.
3. Press the assembly housing (C) downwards, so that it is supported on the hex nut (A)(arrow). [Note: The inner part of the Fitter and assembly housing must be on the same plane.]
4. Remove the safety clip (A) from the new flange. [Note: The Engine speed sensor G28 rotor cannot be removed from the flange or turned.]
5. Place the flange with the front part on a flat and clean surface.

6. Press the sealing lip thrust ring (A) downwards in the direction of the arrow until it lies on the flat surface.
7. Place the flange with the front part on the Fitter, in such a way that the fastening pin (A) is inserted into the (B) hole of the Engine speed sensor G28rotor. [Note: Make sure the flange is flat in the Fitter.]
8. Press the sealing lip thrust ring (B) while tightening the three splined screws (A) against the Fittersurface, so that the fastening pin can no longer escape from the hole on the Engine speed sensor G28rotor. [Note: Ensure the Engine speed sensor G28 rotor remains fastened to the Fitter during flange installation.]
9. Install the hex nut (A) to the end of the threaded part.
10. Press the threaded part of the Fitter in the direction of the arrow until the hex nut (A) touches the assembly housing (C).
11. Align the flat side of the assembly housing with the sealing surface on crankcase side of the block.
12. Screw the Fitter with Allen screws (A) to the crankshaft trunnion. [Note: Insert Allen screws (A) by approx. 5 threaded wire on the crankshaft trunnion.]
13. Install two screws M 6 × 35 mm (A) to guide the flange in the engine block.
14. Move the assembly case (A) manually in the arrow direction until the sealing lip thrust ring (B) touches the crankshaft flange (C). [Note: The guide pin (D)Fitter is inserted into a threaded hole on the crankshaft during assembly. Thus, the Engine speed sensor G28rotor reaches the definitive assembly position.]
15. Keep the assembly housing in this position and manually tighten both Allen screws on the assembly device.
16. Screw the hex nut (E) manually to the threaded part until it lies on the assembly housing (A).
17. Tighten hexagonal nut on the Fitter using the Torque wrench - 5 to 50 Nm (fit. 1/2")VAG 1331 and Open socket SW 24VAG 1332/11. Tightening torque: 35 Nm. [Note: After tightening the hex nut with 35 Nm of torque, there should still be a small clearance between the engine block and flange.] — 50 Nm (37 lb-ft)
18. Install the hex nut (A) to the end of the threaded part.
19. Install both screws M6×35 mm (B) on the engine block.
20. Loosen the three splined screws (C) from the flange.
21. Remove the Fitter.
22. Remove the sealing lip thrust ring.
23. Place the Vernier calliper stem or a steel ruler against the crankshaft flange (A) (splined surface).
24. By using a feeler gauge (A), measure distance (a) between the Vernier calliper stem and the Engine speed sensor G28 rotor.
25. Press the Engine speed sensor G28 rotor further down.
26. Remove the Fitter.
27. Screw the flange fastening screws alternately in a cross pattern. Tightening torque: 10 Nm. — 10 Nm (7.4 lb-ft)
28. Install the Engine speed sensor G28(arrow). Tightening torque: 5 Nm. — 5 Nm (3.7 lb-ft)
29. Install the oil pan .
30. Install intermediate plate.
31. Install flywheel using new screws.
32. Move the assembly housing (A) manually in the direction of the flange(B).
33. Install two screws M6×35 mm (A) to guide the flange(B) in the engine block.
34. Install hex nut (D) manually on the threaded part until it lies on the assembly housing (A).
35. Tighten hexagonal nut on the Fitter using the Torque wrench - 5 to 50 Nm (fit. 1/2")VAG 1331 and Open socket SW 24VAG 1332/11. Tightening torque: 40 Nm. — 50 Nm (37 lb-ft)
36. Check again the assembly position of the Engine speed sensor G28 rotor on the crankshaft.
37. Tighten the hex nut of the fitter with 45 Nm of torque once more. — 45 Nm (33 lb-ft)
38. Check again the assembly position of the Engine speed sensor G28 rotor on the crankshaft.

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