Check the main timing belt tensioning pulley — VW

🧭 Before you start

• Timing position: the crankshaft or camshaft is set and locked during this job
• Renewed: tensioning pulley

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• Place crankshaft on TDC of cylinder 1, via screw (2). The chamfered tooth on the crankshaft gear (1)must match the mark 4V on the flange/oil pump (arrow).

📋 Procedure

1. Remove the engine cover.
2. Remove the Poly-V belt.
3. Remove the upper mechanical distribution cover.
4. Remove the power steering oil pump and put it aside, together with the local hoses. Running gear48Steering.
5. Remove air conditioning compressor and move it away from the placeHeating, Ventilation87Air conditioning.

6. Remove the oil pump supporting pulley on the power steering/air conditioning compressor.
7. Remove the oil pump support on the power steering/air conditioning compressor.
8. Remove tensioning element from the Poly-V belt.
9. Remove crankshaft pulley / gear, by loosening the fastening screw with Wrench3415 and Stems3415/1.
10. Remove mechanical distribution lower cover.
11. Place crankshaft on TDC of cylinder 1, via screw (2). The chamfered tooth on the crankshaft gear (1)must match the mark 4V on the flange/oil pump (arrow).
12. Memorize the position of the tensioning pulley indicator arm (arrow). Press strongly the timing belt with the thumb. The indicator arm should move.
13. Remove thumb from belt.
14. Move the crankshaft by two turns towards the engine rotation direction.
15. Check the position of the indicator arm. The indicator arm shall return to the original position.
16. If this does not occur:
17. Replace the tensioning pulley.

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