I have got a leak in my car now. its in the back floor board on the driver side. i didnt see it comming from the door though. i was kind thinkin sun roof drain line was clogged or something but i dont know. also whenever it floods there is a little spot in the front that is wet too. i would like to fix it myself but i just cant find where its comming from. any ideas?

 

if you've had a boostguage/amp/sub then check the grommet under the ecu box. use some kinda sealant to stop the leakage.

2nd would be the sunroof drains. there's a write-up on AW that shows how to clear them out.

3rd would be the grommet under the battery. but you dont have leak on the passenger side.
Also, i remember reading something about the area close to the cabin air filter.

 

cabin filter area is the biggest culprit the dirt and leaves build up in there

 

my car did this and it was the sunroof drains.

 

as well

 

thanks!!!!!!!!
and BxeA4...you said there was a post on AW. i cant find it anywhere, do you think you could get me the link

 

same here and in the process of fixing it
thinking its sun roof drain

 

AW = audi world, its another audi forum.

 

This happened to my car not to long ago the problem was there was a hole in the firewall because the guy who installed my sub and amp forgot to plug the hole back up when he was done sending the wires through to the back...that might be a problem 2

 

majority of the leak is in the back. and i guess "LEAK" is an understatment!!! i meant to say "FLOOD" the last time it rained here i had about an inch of standing water in the rear driver side floor. it filled in the floor pan all under the seat and everything. it sucked so bad. but im going to start by checking the sun roof drains. thanks for everything guys!