The 300C is a rather new model, I know. But have anyone of you discovered any special spots were rust show up yet ? Mine was extra covered underneath with anti rustmass here in the country before I had it delivered. But at least over here the spread out tons of salt at the roads during the winter. What that does to the cars is easy to imagine. So, I´d just like to stop damage before it gets bad.

 

Have the undercarriage pressure washed throughly in all the crooks and crannys. Let it dry completely, absolutely completely. (test with an air blower in the tight areas to make sure it's completely dry) Then have it undercoated by a reputable company, the company should include updates every year for "touch ups" for the undercoat. Then, the most important part, is to keep the car clean. That means getting down on one knee and spraying up in the wheel wells from the rear, and front, keep all drain holes open so that dust and debris, and watercan get out, also, open your front doors, and spray below the lower hinge to clean out the area that the rocker part of the fender, and the body meet. I would also pressure wash under the hood completely. I usually wash my vehicles like this every third time (I wash my vehicles once a week)during the winter, and one major wash when the rocks are off the road. In the fall, watch for leaves that can get into crevaces that could form a dam, holding moisture/dirt, and thus creating rust from the inside out... the worst kind of rust.

hope this helps!

 

Thank you Al. Yes I´ll follow your advice to keep the car as clean as possible. As a matter of fact I already do.There are no signs of rust attacs so far I just want to be one step ahead. I will give it an undercoat update in late summer when the car isas dry as it ever gets. Once in a while I take it to a Gas stations " do it yourself hall " and uses the pillarlift for inspection. Really good to get a closeview. I avoid to park the Chrysler under trees as much as possible. My small car, the Peugeot, has it´s rented lot rigth under some birches. That means a sticky sugarcoating at this time of year when the leaves come out, and just as you mentioned, dead moisture collecting leaves in the fall. Especially around the lids to the hood where they are hard to get. But the roofmounted rubberantenna is a good tool..
And to everyone, watch out for bird****.Don´t let it stay for weeks, but use lots of water to get it off! Birds eat sand, -something I learned the hard way in the beginning of my car career. [:@]