Carpet wet?
First you must isolate where the water is coming from. Pull back the carpet.
Is it only Passenger side, Driver side, Roof?

Problems:

1. The rubber molding is not seated correctly
+ Check the rubber around the door as well as around the door jams

2. Evaporator is leaking (A/C)
+ Could be costly (about $650 from a regular mechanic)
+ Most likely only the passenger side will be wet
+ AC will be blowing warm
+ Distinct smell from the liquid leaking out

3. Hose Leaving Evaporator box is leaking into the car or is clogged
+When you look in the engine bay you will see a black rubber hose coming out from the fire wall. This is where you can have a clog.

4. Rubber Gromets under the carpet is missing or leaking
+ When you remove the carpet you will see the 2 black rubber gromets.
+ Check to make sure they are snug in place, if not place some silicon around it.
+ Sometimes the gromet drops out (can also cause a whistling noise when you accelerate)








5.Moonroof Drain Clogged
+ Fill a cup of water and place it in the Moonroom Drain
+ It should flow out underneath behind the front tire.
+ Check if it is leaking in the car.
+ If it is use compressed air to blow the debri out of the drain.
+ Video: http://www.youtube.com/watch?v=5-JE2Isu0qs

 

Thanks for the writeup, I have a issue with my drivers site getting wet. I will check the items you outlined.

 

great write up I know quite a few on here have had this problem ..