i have a s63 coupe with only 31k miles i never drive this thing and i have these crusty door molding its looks like white and just crusty ? does anyone know how to fix this i have tried everything except dry ice blasting .. i dont want to have to replace it but if i have to i will .. and my car is always garage kept thanks

clean it with hot water and 409 or simple green.. Scrub it with a towel. They rub it with a grease like ultimox 226

thanks i’m a try that