You know, I have had this same problem many times. My puddle has never been on the floor mat though, it has always been under it. I presumed that the water was coming up from beneath the car or dripping down along the floorpan of the car.

It has taken a toll on my carpet, but I have not bothered to take it in to the dealer.

L8R
Don

Don Francis - 1999 Contour Zetec MTX -- Stock except for stereo mods & 20%/5% tint:
Sony MobileES head unit, Pioneer 6x8 in front doors, 3 JL Audio 10" in the trunk, RF Punch amp pushing the doors, JL 300x2 amp on the 10s
Auto X Novice --> NHS 11 (ya gotta start somewhere) - thanks auto x guys for your advice!