I had a little issue today that I had to troubleshoot, so I took some pics. I think there's some general directions, but here are the details with pics.

1. Unclip the two metal clips.

2. Unclip the MAF sensor and pull out of the way.

3. Undo the air intake or undo the clip right behind the box area.
X. Pull. Cuss. Repeat. After a few attempts, pull harder and wiggle cover out.

VW TECH BY: Swankmonkey.com

These are the mount points (4 of them) on the engine. If there are any rubber pieces on the posts, pull them off and put them in the cover before reassembly.
 

Right after the cover comes off, locate all 4 rubber pieces. I lost the front passenger side, and it went under the intake. That was so much fun trying to find it!!!! Anyway, hope that helps everyone that needs to get under that fancy plastic cover.