...footwell-what's wrong? one answer said it was a leaking heater... what do i do about that?the air con and vent just comes out blazing hot.

first off you need to check the anti freeze level in it,and see if its low,if its not look for a leak around a door seal or something,also check the drivers side front ,if its a heater core it will be wet on that side also,and then it can run back to the back of the car,you may need to have the air conditioner checked also,good luck with it.

sounds like the heater core needs to be replaced. does the car overheat? check you antifreeze level in the radiator, when the car is cool.