Hi, I have a 2008 five door Focus, had it since October 2011 and it has only about 10 days of dealer warranty left.
While driving in heavy rain I noticed the underside of the driver side carpet near the sill was becoming damp, and closer inspection showed that one of the four driver seat 'feet' that bolt to the floor had some rust. I took it back to the dealer I bought from, and they claim they found a leak, and used a rubber plug to plug it from the inside. They also say they unblocked (removed crud from) the external opening on the underside of the sill that was causing water to not drain from the sill.
This all sounded odd to me, as I'm wondering why its a design feature of the Focus to allow water into the sill in the first place. I did some more investigation, took some pics, and am wondering if anyone can confirm if what I'm seeing is correct? I took the interior plastic strip off the sill, and you can see from the photo through the oval hole a slit of light - thats the driveway under the car. Is it correct that the interior of the sill, and therefore the interior of the car are exposed to the outside like this? The second pic shows a bit of the rust on the driver seat foot.
I can't see rust anywhere else other than the seat foot, but I'm concerned there's any rust at all. Can anyone offer advice?