This is probably a random topic, but thought I'd ask anyways. I've only had the car for about 3 months (it was new), but I've noticed that every time I have the top down, and then put the top back up, that the rear glass window has a line of marks about 1 inch wide all across the top of it from side to side (it's on the outside of the glass, thus it will clean off each time I wash the car). Is this normal? I'm guessing the rear window is pressing against something when the top folds up and goes down, but just wanted to make sure that this won't be a problem in the future (breaking the glass, etc.)
Thanks!

 

Do you use a greasy convertible top treatment like Armor-All?

Otherwise not normal.

 

No, I just clean it off w/ the car wash liquid that I use on the rest of the car each time I wash it

 

I don't think it's harmful to the glass window. What brand of car wash soap?

 

I doubt its an issue- my 06 did that too. I assume it may have to do with the switch from plastic to glass and compromises that were made. It never harmed the glass on mine. I kept the window clean to prevent any possible scratches the rubbing could cause.

 

Thanks for the info. I figured it was just the way the glass window was pressing against another part of the top when the whole thing is folded down into the well behind the seats when the top is open

 

It won't hurt the glass. Mine does this all the time and its even more noticeable after I apply a top treatment like 303. In your case, its most likely just dust thats settling on the window after your top rubbed against it.