Also, compared to cerbomark's pic it looks like my rear window IS tinted a little??

 

well just bring it to the dealer and let them talk....
if there is a tint on your rear window than that explains it. At that point the dealer will be out of this for sure.

 

maybe the PO had it tinted and as it was removed it peeled that part of it.

 

I presume your windows are tinted?

It's a side effect of the window tint.. When I got mine tinted the installer said it may be a little lighter in that area. He said its tricky because the raised area of the "bumps" on the glass makes it hard for the tint to lay completely flat on the glass..

He said there's really not much they can do..

Maybe a different tint would help..

 

Saabin is completely correct. I can conclusively tell you this is not a factory problem and Porsche will not help you will it.

Your back windows are tinted. I just had mine tinted and see the exact same thing. The border of all of the windows on the car include raised black ceramic dots. The tint will not stick to them well AND they prevent the tint from touching the glass between the dots most of the time. The places between the dots that are darker is where the tint successfully bonded against the glass and the lighter spots are where there is an air gap between the tint where it doesn't successfully bond to the glass. There is little to do about it, it is impossible to get the tint to attach well where the dots are no matter how hard you try (I spent a lot of time trying the first time I ran into this).

If you search the web for "ceramic dot matrix tint" you will find an abundance of discussions about this. The easiest choices are just to get rid of the tint or live with it. The web articles that will pop up will provide other choices, like solid black vinyl or paint over the dot area. I choose to live with it as I prefer having the tint. All 911s with tinted windows have this problem and I bet you never noticed it on anyone else's car.

Look at most newer BMW coupes if you want to see a car with a really big problem with this. On the 911 we are fortunate that the dot matrix is pretty narrow. I previously had a BMW 335i coupe and the problem was much more pronounced since the top of the back window had an almost 6 inch band of ceramic dots. On the 911 I find it livable.

If you decide to remove the tint, either have a professional do it or carefully read how it is done and do it extremely patiently and carefully yourself. Careless removal can lead to pulling pieces of the orange defroster lines off of the window which really looks terrible, breaks the functionality of the defroster, and is impossible to repair without replacing the whole glass ($$$).

 

why don t tinters just make the top of that dot area the border.... got to look better.?

 

Thanks! Yes after that was mentioned about the rear tint it makes total sense! The ceramic dots are not coming off its just the illusion created by the tint not sticking. I feel a lot better about it. I certainly don't need tint here in KC. I like the look but it is a little dark at night... as is my f150.

 

maybe a good tinter can remove the section over the dots only if you want to keep your tint?

 

That's a good question, one that I asked the tinting company about.

Occasionally, people ask the tinter to do it that way... tint the bulk of the window stopping at the edge of the dots. His answer was that it tends to look more even from the outside but that it still leaves a lighter looking area were the dots are (much like you see where the dots aren't touching), and from the inside there is a much brighter band of light around the edge of the window where there is no tint that most people don't like.

He said that overall, he found that his customers were much happier with the results when he covered the dots than not. I guess it depends on which one would bug you the most.

I'd suggest you sample other cars with tinted windows you happen across in the real world. I'll bet you find most of them have the dot matrix problem and you've never noticed.