Front passenger foot well - soaking wet

[slaskowski]

I have a 2004 CTT with about 50K miles on it that I purchased as a CPO about 18 months ago. Great car and has been very reliable to date (though I was a bit concerned due to the hit/miss of reliability with the 2003/2004 model years, hence why I elected to go with a CPO)

I just finished driving through some pretty bad rain and flooded roads on Sunday for about 40 minutes. I noticed that the passenger front foot well was soaking wet. It was so wet that I could squeegee the water out at first. This has happened only one time before when I was at a car wash this summer. I saw the a post about someone having problems with clogged drains in the back storage area (http://www.renntech.org/forums/index.php?act=attach&type=post&id=11709) and viewing the drawing it appears that it could be the culprit.

My concern is that I believe that the water is coming from beneath the car as I have only noticed it when driving through standing water and with the car wash that also cleaned the undercarriage. Does this make sense or do you believe that it is a clogged or loose connection that is causing the problem.?

ALso how do I access the drain/connector that is located in the front passenger side as in the above picture to see if it is the culprit? I would like to solve this as the smell of mildew every time I drive is not that appealing.

Thanks in Advance - Steve

Edited December 17, 2009 by Loren
Corrected model year

[Deikoo]

Do you have roof lid on the car ?

[bcompany]

Had the same problem of the passenger side footwell being wet. Have an 2003, Cayenne S RHD. Fault was the A/C unit behind the dash had a leak.

Therefore flooded the footwell.

Porsche Stratford, East London, UK repaired very reasonably.

[touareg]

I have a 2004 CTT with about 50K miles on it that I purchased as a CPO about 18 months ago. Great car and has been very reliable to date (though I was a bit concerned due to the hit/miss of reliability with the 2003/2004 model years, hence why I elected to go with a CPO)

I just finished driving through some pretty bad rain and flooded roads on Sunday for about 40 minutes. I noticed that the passenger front foot well was soaking wet. It was so wet that I could squeegee the water out at first. This has happened only one time before when I was at a car wash this summer. I saw the a post about someone having problems with clogged drains in the back storage area (http://www.renntech.org/forums/index.php?act=attach&type=post&id=11709) and viewing the drawing it appears that it could be the culprit.

My concern is that I believe that the water is coming from beneath the car as I have only noticed it when driving through standing water and with the car wash that also cleaned the undercarriage. Does this make sense or do you believe that it is a clogged or loose connection that is causing the problem.?

ALso how do I access the drain/connector that is located in the front passenger side as in the above picture to see if it is the culprit? I would like to solve this as the smell of mildew every time I drive is not that appealing.

Thanks in Advance - Steve

Another possibility but rare is the drain plugs that are installed when a car is manufactured is missing, could have been knocked off some how or loose. These wholes are all over the body for when it goes through its bath and painting process to allow the liquid to drain out, then later plugged with a large knockout type clip, The whole body is sprayed with a rubber undercoat afterwards.

I had this happen on a BMW once, the plug was dislodged, got a little bit of high water during a flash rain storm and it flooded the whole side of the car, had to pull the carpets up and dry it like crazy.

[slaskowski]

Do you have roof lid on the car ?

Thanks for the response, though what to you mean "do I have a roof lid on the car".

[slaskowski]

I just confirmed that the problem happens when the car is not moving (spending the winter in Miami Beach and the same thing happened during one of the many rain storms we have been having this winter). So I can rule out the A/C vent issue (though thanks for the suggestion).

Does the clogged roof drain connection make sense in this case (the one listed below was a clogged roof drain but it was seeping into the back of the person's Cayenne - http://www.renntech.org/forums/index.php?act=attach&type=post&id=11709)

I have the factory service manual in electronic form but cannot find how to get to the front drain? Any help would be appreciated.

Any other suggestions?

BTW - I have found it pretty rare to see CTT in the wild, however here in Miami Beach the city is full of them (though many seem to be driven by housewives :)

Any other suggestions?

Thanks - steve