I feel your pain. The same exact thing happened to me. You are very lucky though because VW will cover that under warranty since you are under 120,000 miles. Mine happened at 119,000 so I got lucky. They should only charge you for a diagnostic which is a $100 or just labor. Atleast, that is what my dealer did for me. I only do little stuff from now on like oil changes, it just isn't worth the trouble to go through again.