I have a leak coming from under the left side of the dash. It only happens in VERY heavy rain (three times in the ten weeks that I've had the E). I took to the dealer and they claimed to have fixed it - found a weld under the hood. It subsequently leaked twice in the last ten days. I tried a search here and didn't find anything listed. Does anyone have any knowledge of this being a problem? I was supposed to drop it off again today, but they didn't have a loaner car available.