In Reply to: What are those black dots for? ... posted by Dean on July 07, 2000 at 14:33:11:
But, in my opinion, they serve to prevent white hazing around the bottom of the windshield over time, this is caused when the glass/plastic layers of the windhsield seperate and soak up condensation/air which discolors the windshield around the edges, usually heavy around the heater/A/C vents. Probably because of expansion/contraction of windsheild. It happened on 3 E28 sedans I owned after about 6-8 years, but has never happened on any E36 I have owned. I think it is the dots that prevented this!