It is leaking internally. It is the fluid that auto dim the mirror. It is a common problem for the e46 M3. You should get it fixed before the fluid get on the interior pieces as it would cause damages.
I had my M3 glass replaced by Sybesmas for around $100. However, I don't know if they offer replacement glass for the Z.
Quote:
Originally Posted by Jimbo370
Got in my car today and looked in the rearview to back up and it looks like a stretched bubble from the bottom left heading toward the middle. Similar to bad tint? I thought it was oily water but it wouldn't erase. Anybody have this happen. did not wash or spray on it?  |