Hello guys, I’m destroyed on the ground. I finally got my beautiful summer tires assembled again on Friday and everything was great! Today I cleaned the car completely, the rims etc. were very dirty, then I noticed these funny white stains/prints immediately and I got a real shock. I thought directly to the workshop that there were some acids on the rims? Please tell me I can get that away somehow, the We rkstatt will probably say anyway that they weren’t. Damn. These can be seen on several rims, but one is very intense. Thank you very much.