90 325ic Original Roof or Not?

[COHO99]

Just wondering if anyone knows how to tell the original roof? I’m looking to replace my rear window. If it’s the factory roof it should be a zip in window but I don’t feel any zipper under the material.

[jeffnhiscars]

I do not believe the 90 factory roof had a zipper. Easy enough to lift the outer flap to see

[bradnic]

That’s not an OEM plastic window. There where two brands WOPAVIN and RHENOGLAS and sometimes a BMW logo on the plastic window.

More info here

Looks like BMW continued using both rear window suppliers for the E36. note this graphic from cristal-cabriolet.fr, and also note the same WOPAVIN numbers as above.