Fixing Your Audi A6 Water Leak (Video)

Rain has dominated the Shenandoah Valley during the last few weeks. I can appreciate the value of precipitation, since rain = good water levels which = more kayaking excursions. However, the precipitation hasn’t been very kind to my 1999 Audi A6 Avant.

A few weeks ago, I noticed a water leak in the Audi. As I drove uphill, water came rushing through a vent near the passenger side floor. I figured this is one of those problems you can’t really ignore.

Instead of dropping $150+ to have a dealer fix the problem, I decided this was something I would try to fix on my own. The good news for me is that I fixed the problem in less than an hour. The good news for you is that I’m a nice guy and I took some raw video of the process.

I won’t make any guarantees, but this video should help Audi owners who are experiencing similar problems. When you’re done fixing your water leak, feel free to send me a check for the difference.


Add yours
  1. 1

    Hi Josh
    Thanks so much for this video, sorted out my Audi leak, now just need lots of towels and fresh air to let it dry out.

    All the best

  2. 3

    Hi Josh

    Very informative video. Explained the problem my 2003 Audi A6 Avant experienced this past week. We had 4 inches of rain in NJ. My teenage son now drives this vehicle and was surprised when water came flowing out behind the firewall onto the floor of the vehicle.


  3. 7

    Thanks. I have been dealing with this problem for a while. Can one leave the plug out or does it need to be put back?

  4. 10

    Hey Lea,

    I hate to be the bearer of bad news, but the water may have affected a computer chip that sits in that area (I think I’ve heard stories of this happening). Check with a mechanic or someone who knows their stuff.

    Best of luck to you.

  5. 11
    Mrs Apollonia

    Thank you very much Josh, You truly made my day. My 2002 Audi A6 quattro was leaking big time on the passenger’s side. At first I got panicked and I was now preparing myself for a huge amount for mechanic bills. Thank you to you I spent 0.00 except my energy off course in fixing the leak. I just hope that, there should be more nice people like you on our planet. ones again thank you.

  6. 15
    Jaime delosrios

    Josh, great job man, you save me a load of money. Have you done a similar video for the sunroof rain gutters?

  7. 17

    I think there are actually 2 drains on my A6 Allroad 2003, one slap under the battery and the other one 30cms (1 foot) further to the drivers side (invisible but easily reached with your fingers. In my case both were completely blocked! Thanks a lot for the tip.

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