We have water leaking into the interior of the car with the air conditioner on. Seems like the condensation drain is plugged. where is this located on this car?

1. I answered the starting and battery question in your duplicate posting on this question.

2. The air conditioning system requires a drain system to direct condensation (ie water) out of the vehicle. It is quite normal for the air con system to produce water as you know.. If you have water leaking into the car interior when running the aircon it is an indication that the drain is blocked and the water cannot escape. The drain tube runs to the underside of the vehicle and if it is blocked this can often be right at the end of the drain tube under the car. That is the first point to check.

Dear Helen,
Which filter? You have the air filter, the oil filter, and the cabin filter.
If it is coming out near the air filter or the oil filter, I should suspect a leaking heater or radiator hose.
A pressure tester for the radiator will help you find those leaks.
If it is near the cabin filter, it should be the drain tube for the air conditioner condenser, which is normal to leak when the air conditioning is running.
Try to catch some of the water that is leaking and see which fluid it is.
Air conditioner condensation water is clear, it even looks drinkable.
Anti-freeze/coolant liquid is colored blue, green, red, or yellow, (it depends on the brand) and has a distinct sweet smell and taste. No, I am not recommending you should taste it.
God bless your efforts.

THE WATER IS CONDENSATION FROM THE AC EVAP. THE DRAIN HOSE TO THE OUTSIDE IS PROBABLY CLOGGED. IT IS USUALLY LOCATED ON THE FIREWALL NEAR THE AC LINES GOING INTO THE INTERIOR AND IS A SHORT ELBOW SHAPED RUBBER HOSE. IT MUST BE CLEANED. TRY USING A SMALL BOTTLE BRUSH THAT IS FLEXIBLE OR SOMETHING SIMILAR

a/c drain holes plugged,open drains and your problem will be solved.drain holes under car.

Could be condensation from the air conditioner. This normally drains out a tube near the glove box, onto the ground. If this drain tube comes off or is clogged, the water will drain into the interior of the car instead.
Could also be a leak around the windshield, door, or sunroof.
When do you notice it most? Warm humid days, or after a rain or car wash?

It sounds like condensed water from the air conditioner. Just like a glass with ice in it sweats, the cold part of an air conditioner sweats. That water needs to go somewhere. There is a drain on the bottom of the ductwork that comes out under the car, often toward the passenger side.

If the drain gets plugged, the A/C still sweats, but the water builds up inside the ductwork.

You can often clear the drain by blowing some air up the drain from the outside. (Don't use too much pressure!)

Three possibilities--the windshield is leaking water, the heater core is leaking antifreeze (should smell like antifreeze), or the air conditioner evaporator (near the heater core) has a plugged drain tube and the water condensed out of the warm air is running back into the cab. Hope this helps!

This is condensation from the coil, that would be the water from the air your air conditioner removes as it cools. There is a small drain or weep hole to allow this to drain, this appears to be plugged. With your car safley up see if you can locate the drainage tube, try inserting a small wire up into to clear the obstruction.
I hope this may have helped,
Tom

Your drain plug is clogged.

The issue is condensation from your air conditioner not properly draining. This is usually caused by a damaged, or clogged drain hose. The condensation is supposed to drain outside the vehicle by way of a hose on the firewall area.