Zippered rear window no real help.
As I mentioned earlier, the window zippers in, but you have to glue the top onto the edges to seal it, and they've got a handy dandy heat wire to set heat-sensitive glue while a custom frame presses the top to the window edges . . .
I've gotten mine replaced since my earlier post, and the top shops I went to said great on the zipper, but no one has the special Audi frame that presses the top around the seal area while the glue is heated, and the wires are known to burn the top if one is not careful.
So . . . . they sewed in a new rear window, not an Audi one, just some window plastic cut to match . . . $450. Looks good, and certainly mucho cheaper than the dealer (*shiver*).