Hello, I have seen on the passenger side that there the welds from the longitudinal beam to “radhouse inner shell” (kA as it is called) are all slightly rusty. The car has a “rust guarantee”, but do not really want me to complain about the stress by 20 instances until the application is approved. Especially since I think that the there even with the brush only make blank and spray black paint over it. What could be done here effectively to stop the rust permanently? Al I first chased into every opening cavity spray.