Hm... first place to see the coolant leaking on my 2.0 2000 175K bug was on the coolant flange seal. To be more precise, I could smell the coolant when I turn the heating fans on so I pop the hood and found the white dry stuff around the coolant flange seal area. Got the new one from the local part store (
$13.85 CAD ) and replaced it my self. Took me 1 hour
Good luck