I have a 2005 non v8. I have a lot of water accumulating behind the drivers seat on the floor-very soaked carpet. It seems to be window washer fluid. At the start of winter I failed to put in the right mixture and as a result. I suspect it froze going back to the rear wiper. We had nights lower than -29c. How can I fix this> I could use this info ASAP as the smell from the alcohol mixture is something else. I also need to have fluid! Thanks!