So being over 100 degrees the past couple of weeks and a month without rain I accidentally left my driver side window cracked open and wouldn't you know it, it rains the next morning. So going out to my car I see what has happened and clean it up best I could but I'm a little worried about the leather seat. It feels like some water soaked into it and I'm unsure of what to do about it...

 

Let the seats just air dry. Maybe someone who has used a good leather treatment, could recommend one. I have not personally used anything on my leather seats as yet.

 

Last Thursday in Toronto, a well known figure in the skating world set fire to his Porche, garage and house when he left a leaf blower blowing air on his cars wet seats.
Well over a million in damage, everything destroyed.

 

Ok don't try that...

 

If it were mine, I'd let the seat dry (naturally) then treat with mink oil.

 

Search the detailing threads, but I would use either Meguiar's or Mother's leather cleaner and treatment. I believe only the center part of the seat (where your butt goes) in leather and the outside may be leather (at least that's the way it is on my A6). Anyway, a car leather clean would be my suggestion over squeezings from a modified rat.