Hello, With my two Mercedes original winter rims I notice a slow pressure loss again and again. After spraying in the soap water I could detect the air escapes from the valve hole. So I went directly to a well-known tyre repair chain to let me help. Their diagnosis was that the paint was loosening. So they cleaned the valve hole and replaced the valve rubber. Now I find amazingly what was meant by valve hole cleaning the like If it had been only in a small environment around the valve hole I would have understood it yet, but that is already a lot too much. Now I only wonder if this was correctly regulated by the workshop and if not what I could do legally, they have apparently corrected the pressure loss but you can not justify the paint damage. Otherwise which alternative except for a complete new painting g Would it still be?