(I posted this in the main forum, but all the USA guys are probably asleep dreaming about their BMWs so..
Hi guys,
So I seem to have an issue with my rear window in the sense that when direct sunlight hits it, a certain portion of the window looks filthy.
Out of direct sunlight, the window look immaculately clean.
I have cleaned both sides of the glass vigorously, with different car window cleaners, to no avail.
Here are a couple of pictures of the 'dirty' portion in direct sunlight.
Any tips on how to 'clean' this? It bugs me whenever I'm driving and sunlight hits the back window, especially after I've spent ages cleaning the whole car. It kills the 'clean' look.
Thanks.