Water leak

[htbetz]

Heavy rain causes a little drip under the passenger side dashboard that goes on to the rug. The windshield seal looks good as well as the sunroof. Can it be comming in the grill over the hood?
Thanks

[NEW911SC2]

Just realized that I may have a similar leak. Have yo figured out wear the leak is originating? Thanks for any info.

[theclaw]

Nothing like bumping a 7 year old thread but I have a similiar issue.

We had a light rain today while I was out having coffee with the Chicago Yahoo Porsche group. I get a noticeable leak under the left dash right where the knob to release the gas lid is. Looks like it creeps out from that corner just left of the knob. The window and door seals look good. Could there be water coming in the outside air vent that gets inside the dash area?

If my memory serves me, last time I was in a good rain, I also got some leaks coming from under the left center of the dash near my knees.

As soon as the battery is charged in my camera I'll snap a photo of the location unless someone chimes in sooner.

Thanks,

[schumicat]

I had a leak at gas knob area and it was the window seal. it can rust under the seal unseen and let water in. water in the air vent should drain through the plastic tube (inside the smuggler's box). water in the trunk (because of bad trunk seal) can drain by your knees.

[teleski42]

Take a closer look at the outer windshield seal at the corners on the side that leaks. Mine looked fine, I injected sealer under the rubber and the leaked stopped.

[Por_sha911]

About two years ago I had a leak dripping under the dash around the hood release. The seal was plyable and had no cracks but when I took it to a shop to replace the seal but he cleaned out between the seal and the glass and then injected a black sealer all the way around. Dry as a bone.

[theclaw]

Here are some pictures of where the water comes out and the corner of the window seal. My seal looks pretty good and this is a garage kept car but if you think the seals can fail and still look ok I'll have a go at injecting some sealant.

Any tricks to getting the sealant under there? Needle nose injector?

[uwanna]

Originally Posted by htbetz

Heavy rain causes a little drip under the passenger side dashboard that goes on to the rug. The windshield seal looks good as well as the sunroof. Can it be comming in the grill over the hood?
Thanks

I realize this is a very old thread, but maybe I can help enlighten the newest responders with a possible fix to this maddening leak problem!
I fought your exact water problem forever! For years, I pulled out my hair trying to find the culprit. However this forum came to the rescue.
Go to this thread (it's LOONG), but starting on about page 4 you will find a discussion on the type of water leak you have. It is almost always a windshield corner seal problem (mostly the upper corners) and can be fixed with a mallet and a piece of wood. (yea right!)It involves tapping the aluminum trim strip in the corners with the wood block to achieve a better seal.
Here's the thread:
Gap between Rubber Windshield Seal & Body

Here's the "capsule" explanation about how and why it works.
Gap between Rubber Windshield Seal & Body

Also here's the pic of the wood tool you need to make:
Gap between Rubber Windshield Seal & Body
So go do a little reading, and your troubles should be over.
For years I made sure my car never sat out in the rain because if it did, I always had a wet passenger side carpet, or in a heavy rain storm I had a puddle!
Did this little simple procedure, and VOILA my car has been dry ever since. My precipitation fobia has been cured!!!
Grant

[DRACO A5OG]

Check the windshield washer nozzles, I found mine were loose and missing the gaskets from PO body work. Sealed and no more wet feet

I check the entire car in the garage in the dark with light in the trunk to see if I see light coming thru and wouldn't you know I found several. I had the fresh air vent tubes while I was doing this as well.

I also check at the floor boards, found couple of holes as well.

Jim

[theclaw]

Grant, good stuff. I'm going to give that a try. Thinking I might test first by spraying some water on that corner only so see if that's for sure where the water is getting in.

Jim, I like the light idea. Going to try that too.

[uwanna]

Originally Posted by theclaw

Grant, good stuff. I'm going to give that a try. Thinking I might test first by spraying some water on that corner only so see if that's for sure where the water is getting in.

Jim, I like the light idea. Going to try that too.

Jeff,
Yes, definately try using the water. I found mine by just holding a running water hose at the top of the windshield to simulate rain "sheeting" down it. Takes a little bit of time for it to start to drip onto the front floor, but it will if the windshield seal is the location of your leak.
Good luck,
Grant

[sballard]

That left lower corner of the windshield channel is notorious for rusting out. When I took out my windshield, both corners had holes rusted through.

[schumicat]

be careful with just squirting sealant into the gap. it may stop the leak, but if it is rusting, it will get worse and worse and if left unchecked may require a major repair.