Triangle wing/vent windows

[vwlotech]

Is there a DIY or any information out there for replacing the small triangle wing / vent windows? I tried the search but didn't see anything useful, thanks in advance for any assist

p/n for ref. 5G0845412ENVB

 

[turbovw1]

I kneed to know as well.

The seal around my windows are falling apart and I need to replace it!

 

[sprinks]

From ERWIN