I have a recurring water leak in the interior. There's a small puddle underneath the driver's floor mat and a little damp behind the driver seat. I suspect water is flowing back. Here's the thing, I've only noticed it within the last few weeks when my interior smelled damp. And within the last few weeks it's been raining a good deal. However, it's Hawaii and it has rained prior to the few weeks before the month long drought and never had a problem. I also fixed my AC a few weeks ago anticipating a hot or rainy summer.

Now, I checked my headliner to see if water would be leaking from the windshield seal, and nothing. I checked the firewall to see if rain was going down the wiper shroud finding a hole in the firewall to enter, dry. I checked the carpet near the door, dry. Everywhere is dry except the center of the driver side carpet (and a little damp behind the driver seat). I am perhaps suspecting my AC as the problem as I have heard about a plug being unplug and water leaking in. But I thought it would make the passenger wet since most of the AC stuff is over there.

Any ideas?

 

Where is leak? I know its under the floor mat, but is it towards the pedals or the seat?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Opie &raquo;</TD></TR><TR><TD CLASS="quote">Where is leak? I know its under the floor mat, but is it towards the pedals or the seat?</TD></TR></TABLE>

Right in the middle.

 

Did some searching in the Civic forum and the leak can be caused by the lack of sealant between the fender and firewall. As well as these rubber seals behind the wiper cowl going out too. I'll just have to check those out when I have time. In the meantime, my feet will be swimming. (Ok, it's not that bad)

 

How do the door seals look? Seat wet at all?

Yes, there is a plug/hole for the AC. If you've been running it A LOT, the condensation could be building up causing the problem. Just experienced the same thing on a friends Passat, only the water/dampness was on the passenger side.

 

Door seals look great. No cracking. Do you know where this AC plug is?

 

I had the same problem after i washed the R on the saturday. Saw a line of water right under the brake pedal, and onto the plastic part on the carpet. If you figure it out, let us know, ill do the same.

 

There is a drain tube underneathe the car, under the passenger footwell, I've seen that tube become clogged and leak water into the cabin....check to see if yours is clean.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by walker111 &raquo;</TD></TR><TR><TD CLASS="quote">There is a drain tube underneathe the car, under the passenger footwell, I've seen that tube become clogged and leak water into the cabin....check to see if yours is clean.</TD></TR></TABLE>

That is an A/C drain.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by neo_ &raquo;</TD></TR><TR><TD CLASS="quote">

That is an A/C drain. </TD></TR></TABLE>

Yea, forgot to put that in me post.

 

If it was the AC plug, wouldn't the passenger side be wet (which it isn't)? I probably won't have time to check anything until later next week.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BlueIntegraBoy &raquo;</TD></TR><TR><TD CLASS="quote">If it was the AC plug, wouldn't the passenger side be wet (which it isn't)? I probably won't have time to check anything until later next week.</TD></TR></TABLE>

Both sides can be wet.

 

Ok, I will check sometime next week. The tube is under the car?

 

I've also had water get onto my floorboards from a missing grommet where the secondary O2 sensor goes through the transmission tunnel.

 

my first R leaked in the driver's door seal right at the corner.. it would drip onto the rear carpet and run to the front footwell.. that carpet is pretty thin..

Easiest way to find it: Run it through one of the automatic touchless car washes and watch for where the water comes from.