My wife noticed some leaves at the rear bottom of the front fender when she was opening the door. When I began cleaning them out I discovered a ton of decayed leaves and dirt down there. If you open a front door and look below the hinge at the area at the very bottom of the front fender you will see where I mean. I found the best access was to remove the two screws at the bottom of the plastic inside fender guard and with a flat bladed screwdriver and vacuum cleaner remove the tons of debris that was stuck back there. That stuff is sure to cause rust if left. My car is a 2009 Aveo5.