www.hessen-aloevera.de Hi so I have a problem because I think that my backpane is leaking is known by one of you too. I sometimes have a streak in the middle of the disk I first thought that was from the outside but it didn’t go away when I turned on the windscreen wiper. and then I saw that that’s from them. I took it away and after frost and snow it was there again. knows the one from also someone. Would be great who you can help me