I recently purchased a '00 C230, a MB lease return from Michigan (I live in Arizona and bought it from a used car lot there). I didn't notice any rust at first, but after the first good wash, I noticed a slight amount of rust on the lower driver side panel and the trunk lid edge. I called the local MB dealer thinking that all cars had a 5-year rust/corrosion guaranty. After some digging, the answer was "no, we don't cover rust". I looked in the manual and there was no mention of rust/corrosion being covered. I can't believe a '00 Mercedes is rusting out.

Any suggestions?

Thanks