Those are vent lines.
One come from the upper front end of your transmission, a banjo fitting
there, easy to see.
Another one comes all the way from the front differential ..
and the 3rd one went to a fitting on the waterboxer engine in the clutch
area .
  That one is doing nothing withyour current engine and can be removed.
the upper ends of those ..just stick into the area above or near  the
gas tank and end at 'nothing'   just air venthoses.
Pretty sure.

Scott
On 3/18/2013 8:47 PM, Dick Wong wrote:
> Good Evening Listers,
>
> Did some work on Blaze over the weekend.  Got to this,
> http://tinyurl.com/cjgcc7p , and I can't find anything in the Bentley on
> this.  Maybe I'm looking in the wrong place.  What are these three black
> tubes for?  A couple are melted on the other end and I have no idea where
> they attached to. Any suggestions on what to use to replace them with?
>
> Help!
>
> -Dick Wong-
> 78 Scirocco
> Original Owner
> 87 Vanagon Syncro 2.5 (slightly crispy)
> Third Owner
> 12 Golf TDI
> Original Co-Owner
>