HELP
I am pumping water out of the A4.
The water is in rear right passenger footwell. It is clear and it smells OK.
I have 1 liter of it.

Never had this before. I recently replaced sunroof and went to California on the Interstates in 38 degrees weather.
There are no holes in the chassis.

 

Finding where water comes in from can be difficult. We often make assumptions like sunroof etc. Had a problem with the 2000 S4 where everytime it rained there would be 4" of water only on the rear left. We finally sourced it out by having someone in the car listening and watching while I held the garden hose on the outside of the car. The problem was the hole my son used to run a power cable for his stereo wasn't sealed up again.

Good Luck!!

 

Here in Alberta drilling holes means frozen body parts in winter so we do not do it. I noticed that my air filter is wet. I guess I will hose the car and look for signs.
Is there a drain pipe for AC that could be plugged?

 

It really could be anything at this point. You know that water will find the path of least resistance. A good place to start is your wet intake filter. Hose down the area with someone inside and see where the water comes from.

Good luck, let us know what you find.

 

Mike your first name should be Alfred. The hose helped and it was right rear lamp. Thx

 

Glad you found it. Something like that could drive you mad.

Thanks

 

Well yes the moisture would ruin the computer and the fuses and the other electrical components over time.