Engine speed sensor G28 rotor - further compression — VW

🧭 Before you start

Fits: platform codes 6A1, 6A5

• Special tools named: T10134, T10017K, VAG 1331, VAG 1332/11, torque wrench
• Also covered elsewhere: Diagnostics test device

Don't miss

• Make sure that the positioning pin of the Fitter T10134 or Fitter T10017K sits on the rotor hole of the Engine speed sensor G28.

🔧 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.

📋 Procedure

1. Install the Fitter T10134 or Fitter T10017K with manually tightened Allen bolts (E) on the crankshaft.
2. Make sure that the positioning pin of the Fitter T10134 or Fitter T10017K sits on the rotor hole of the Engine speed sensor G28.
3. Manually move the Fitter T10134 or Fitter T10017K towards the flange (1).
4. Manually turn the hex nut (B) in the threaded hole until it rests on the Fitter T10134 or Fitter T10017K.
5. Install guide pin for petrol/ethanol (red handle) engines (F) into the crankshaft.

6. Install M6x35 screws on the engine block.
7. Tighten the hex nut (B) of Fitter T10134 or Fitter T10017K by means of a torque wrench - 5 to 50 Nm (enc. 1/2") VAG 1331 and Open socket SW 24 VAG 1332/11 at torque: 40 Nm. — 50 Nm (37 lb-ft)
8. Check again the assembly position of the Engine speed sensor G28 rotor on the crankshaftInstallation position of the Engine speed sensor G28 rotor on the crankshaft - check.
9. Tighten the hexagonal nut on theFitter T10134 or Fitter T10017K to 45 Nm. — 45 Nm (33 lb-ft)
10. Check again the assembly position of the Engine speed sensor G28 rotor on the crankshaftInstallation position of the Engine speed sensor G28 rotor on the crankshaft - check.
11. Tighten flange screws
12. Install the upper crankcase Upper crankcase - remove and install.
13. Install lower crankcase Lower sump - remove and install.
14. Install intermediary plate
15. Install engine flywheel Flywheel - remove and install.
16. Check valve timing Valve timing - check.
17. After replacing the sensor rotor, combustion faults must be adjusted. For such, select the function Combustion fault adjustment replacement in Assisted functions ⇒ Diagnostics test device.

Other VW procedures

• Crankshaft seal (pulley side) - replace
• Lower sump - remove and install
• Throttle butterfly valve control unit J338 - remove and install
• Crankshaft flange with Engine speed sensor G28 rotor - remove
• Exhaust camshaft seal (gearbox side) - replace
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