Hey, thinking about getting a used Tiguan probably between 2012-2016. Been reading about the moonroof drain issue and wondering how big a problem this is? Is this something that can be dealt with proactively without having to remove all the interior trim panels or do I just wait for mold on the floor to deal with it. I saw a few Youtube videos, seems a bit like a pain to deal with. Also, any other issues I should be aware of with a used Tiguan? Thanks!