Yesterday, after driving in the rain, using the AC to defrost, the water leak in my 2006 Outback passenger foot well was dripping off the heat outlet onto the carpet, near where a passenger would have his left foot.
Footwell carpet was very wet, I shop vacuumed it out.
I let the car sit in the rain overnight, and this morning there was no water drippings on the rubber floor mat. (I put a tin foil shield to direct any drips onto the floormat).
fwiw, my sunroof drains are clear, confirmed by watching water come out behind the drains at each wheel.
This morning I started the car, and ran the heater directed at the feet (not defroster, but auto climate control on and AC is on in that mode) for 20 minutes, to dry the footwell further. No water drips showed at that time. I turned off the car, and let the car sit in my driveway.
About 1 hour later, my carpet is wet, and there is visible dripping from the heater area. (The car has just been sitting in the driveway, no actual driving, but it is still raining).
This made me think my AC dryer drain hose is clogged.
attached photo of my MY07
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If you have a wet-dry vacuum, you could try to bring the end of the vacuum hose to the drain outlet.
Thank You for that photo!
I was able to find that hose and used a shop vac on it from the outside. Got a bunch of water out.
Im hoping this has cleared whatever was clogging the drain hose.
atm Im running a small electric heater, to dry out the footwell. There are no more drippings coming off the heater area.
will need to do some more testing, but Im very hopeful
ps, more evidence of the location of the leak, I removed the cover to the heater, under the glove box, (I put coins on the wettest spots on the padding for the photo).. in fact there was a puddle of water under that cover too