I have an A4 and I live Boston and for past couple of day its been raining like crazy. Anyway, I noticed that on the back passenger floor there was a puddle of water. Whenever I drive my car there is more water coming thru the floor. The front passenger side has no water at all. Windows and doors are shut. Any ideas. I have been draining water everyday. pls help.

 

remove the carpets and look for holes especially in the wheel arch area

 

^bummer dude, sorry I don't really have an answer for you but to check ALL around back there for a possilbe seal break in the door/window...but i'm sure you've already done that

 

i had the same problem and it was a hole in my firewall when they installed my subs just close the hole and it should stop

 

It either taht or you have a hole in your floor, cause of rust or something, i think you have noticed that already, the hole in the firewall seems to be a likly cuplrit or the seals around your door/window arent holding any more. look around for a trail of wetness , pull out the seat and see where its coming from.

 

If you have a sunroof, check the drain holes for the sunroof.

 

Thanks for the reply guys. Few questions. Whereare the drain holes for the sunroof? Also,where is the firewall, where shouldI look? I am missing a headlight squirter cover on the front right side of the bumper, and the water puddle is on the right side too. Is water coming thru there?I noticedthere are two pipesholes if you remove thefloor mat what is that?

 

Whereare the drain holes for the sunroof? Also,where is the firewall, where shouldI look? I am missing a headlight squirter cover on the front right side of the bumper, and the water puddle is on the right side too. Is water coming thru there?I noticedthere are two pipesholes if you remove thefloor mat what is that?

 

the firewall is behind the engine where the battery is well at least thats where mine is

 

ditto. its most likely the sun roof drain plug.

the blue arrow is pointing to where it is located. its gota be coming from there or some other hole in the firewall on the drivers side. it pours in from there and then collects in the back. the bad part about this though is water might also be getting inside your dash. thats what happened to mine and i had to pay around 500 bucks to get a bunch of switches and fuses that had blown replaced