After reading many threads I thought I would offer another view on the flooded footwell. From the advice of these forums I had gone through the routine of making sure the drains are clear and the cabin filter is installed correctly. several months ago after some heavy rain left my footweel soaked I decided to look into this a little more. I rigged a small water line (icemaker hose) and begun to apply water to the various culprits mentioned previously. Never did I see any evidence of water intrusion from the sunroof or battery drain. I had suspected it may come in through the rear door as after I would wash and wax I noticed a small amount of water near the door. I removed the panel and while laying inside had my girlfriend spray the outside of the door with water. not heavy blast just enough like a heavy rain. I discovered as the door is designed to leak into the inside and drain out the bottom. I noticed water was seeping from the inner door panel into the inside of the car.
My conclusion was the inner door seal was probably ok from the factory, but after having the door look module replaced the gasket does not seal back as well. I picked up some foam tape at home depot and loosened the bolts of the door panel. I then stuffed the gasket material between the panel and door and tightened the bolts back up. This seems to be working so far but we have not had any really hard rain.


My conclusion was the inner door seal was probably ok from the factory, but after having the door look module replaced the gasket does not seal back as well. I picked up some foam tape at home depot and loosened the bolts of the door panel. I then stuffed the gasket material between the panel and door and tightened the bolts back up. This seems to be working so far but we have not had any really hard rain.