I own a 2003 LR Discovery S. Water is dribbling down from under the dash area and collecting on the floor carpet and mat. It's a lot of water to be sure and I wonder if a drain line is plugged or something. Any ideas. Only does this when using the A/C. It is running down the side of the tranny hump or center console hump nearest the front passenger's left leg.

 

you ac drain lines are plugged. you can go under the car and unclog them, little rubber **** that come out on either side of the trans, shove a screw driver in there and move it around... youll get a shower doing this if youre not careful

 

Clear the 2 drain tubes and then work on drying out your carpet before it gets moldy.