guys, just wondering, do you guys notice that there is some kind of a crosshair in the middle of the windshield? its only noticeable when the windshield is fogged up. what is it for? I apologize for the noob question.

I noticed it too when I was cleaning it.. I have no idea..

Lining up wheel chaired pedestrians ?

soooo wrong.....can you imagine what the chair would do to your grill?

Could it be from the shape of the airflow from the defroster. Maybe a cleaner/dirtier section from airflow??

I have seen this on other vehicles too. I think it is a mark left on the window from the suction pad that held the window when it was installed onto the car during manufacture.

bump?

Wig is correct - this is an alignment mark for when the windshield is installed at the factory.

I have the marck as a circle. And yes it does look like a mark left from a suction cap. Tried to get rid of it but it wont go away. Used viniger with water.

I have a circle low in the center that never fogs up. Same thing?

I have a circle too, and almost in the exact center is a rock chip. Dang. I had put a round Novus sticker over the rock chip to keep it from spreading, and now in the early morning sun, it appears to be exactly centered in the suction cup circle. Cool. Um.

Wig is right. I've got one too. Tried everything to get it off.
Will talk to Dealer to find out how to get it off when I bring it in for service.

well i did have it until i RainX'ed my window, try it out guys.

I rain-x my windshield every week. It's still there.
Did you use some type of applicator?

i have the same thing too...

looks like a halo

I have a spot as well...maybe they should do the entire windshield like that to prevent the fogging

I finally went out and used Invisible Glass to clean the inside of my windshield. Hey, what do you know? In the bright sunshine (yeah it does make an appearance sometimes here) the circle is gone, G-O-N-E. I wonder, how long will it stay gone?

Hmm.

I too was able to "wipe" it off, but really, it just wiped off the condensation around it, making it blend back into the glass...

really weird... i wonder what this imperfection could be since so many of us have it!

i noticed that too this morning for the first time

very odd

the service dept called a mercedes rep to see if he had any info or any service bulletins... but nothing...

i really wonder if this is a common defect or if this "circle shape" that will never fog up actually has a purpose!!

ANYBODY have a solution? Other than replace the whole windshield?

two dealers now have been dumbfounded by this...