I solved the problem...

If some of you replace the coil... be aware that's a difference in size of
the 2 spade connectors. On the new coil it's shorter (10mm vs 18mm) so your
white plastic connector won't fit, you have to remove the old connector and
put it on the new coil.
Note: the new coil is from our regular vendor.

https://www.thesamba.com/vw/forum/album_page.php?pic_id=2217129