I suggest you take it to someone that does not work for Ford. I have an 01 Focus and mine leaked since I bought it. After it leaked on my new video camera I took it to the dealership for the second time on this issue and told them to fix it ( although they could never find a problem). They said to bring it back when it was raining. It never leaked again. My husband has recently attempted to replace the cabin air filter. We discovered Ford had spray painted a For Sale sign and it was wedged over the housing for the air filter, thus keeping rain water out. There should be a recall. | 
