Checking the valve timing (VW Polo 3)

1. Remove the upper part of the timing belt cover

2. Set the piston of the first cylinder to TDC. To do this, align the mark on the crankshaft pulley with the edge of the mark O (fig. 4.4 a).



3. The locking holes on the camshaft pulleys must be aligned with the holes in the camshaft housing (arrows) (fig. 4.4 b).



4. If the locking holes are on the outside of the camshaft pulleys, the crankshaft should be turned one revolution.

The original information is posted on the resource (VWmanual)