Sean Henderson

Where can i get instructions on how to replace the rear plastic window? Also who is the best supplier and is it easy to do?

Rusty Spokes

There are some write ups out there. The first thing is look and see if your rear window still has a "zipper" on the inside. Replacement canvas tops have the rear window sewn in with no zipper. If you top is original with the zipper then there are some replacement plastic windows available...but there is a electrical connection and "hot wire" to seal the rear window in place see the link
The rear windows are here: AUDI 80 convertible rear screen (1992 - 2000) - Cristal Cabriolet

My advise would be to just replace the top. You can get a good Sonnenland canvas top off the Bay for about $650

cuatrokoop

My sister's old pelican blue '98 had to have the rear window replaced. A Porsche dealership did it, and it leaked from what I remember. Not an easy job.

grillage

I found and entire top in good shape at a junkyard and replaced the whole thing - frame and all.