So after doing the airbox mod this morning I went out to test drive. I noticed after stopping at a light that I had a strange new noise that doesn't sound like its coming from the airbox. It seems that the noise increases in pitch as I speed up and after about 30mph I can't hear it anymore. Another thing I noticed is that when I'm slowing down I hear the sound the most.

Here's a video I took of the sound. It also gets a bit louder as I turn the wheel.
http://www.youtube.com/watch?v=mNiR7D7Ro3E

If anyone has an idea what it might be that would be great. I did notice that the power steering fluid was down below the little dipstick so I plan on getting it filled up this evening when I get back from the VW dealer. Pentosin 11S right?

 

You need power steering fluid.