A4 (B6 Platform) Discussion Discussion forum for the B6 Audi A4 produced from 2002-2005

Electrical ISsues

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Old May 28, 2011 | 06:23 AM
  #1  
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Default Electrical ISsues

After a severe rain storm I found the driver's side foot well soaked. Only the floor. No water on the seat or anywhere else I could find.

Now I have several anomalies occurring at the same time. The headlights will not turn off, the 4-way flashers go on whenever they want and may or may not turn off. The wiper run on their own for a few minutes then stop.

At one point the windows would not roll down. All of these problems seem to come and go without any direct correlation.

I pulled the dash apart and could not find any water inside at all. Also pulled the computer module out and no water or moisture there of any kind either.

I know I will have to go to the stealership eventually, but if anyone could give me their thoughts I would appreciate it.

It is also possible that lightning caused these issues and the water is just coincidental.

Thanks for your help!
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Old May 28, 2011 | 06:25 AM
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BTW,

2002 A4 1.8T Quattro
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Old May 28, 2011 | 03:08 PM
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Default Rain

Central electronics control unit under the carpet, driver,s side.
lift the carpet and you should see a unit there.
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Old May 28, 2011 | 04:11 PM
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oh no please not another problem with an audi. i have one more problem im going to go after them for lemon law
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Old May 28, 2011 | 06:09 PM
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Originally Posted by s4master1
Central electronics control unit under the carpet, driver,s side.
lift the carpet and you should see a unit there.
Thanks for that! I will look into this first thing in the morning.
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Old May 31, 2011 | 05:40 AM
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To answer your question on lightning, unlikely. See the video below for a test from Top Gear.

http://www.youtube.com/watch?v=ve6XGKZxYxA

As s4master says, wet electronics. But you also need to fix the cause which is likely clogged drains. Do a search for drains and you should find lots of info. Been covered here several times.
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Old May 31, 2011 | 07:04 AM
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Default Ross Software

Found water under the carpet and around the module. Dealer want $450 for the part.

They also tell me this needs to be programmed. Is this something I can do with the Ross Diag software and an interface? The dealer says it will run anywhere from $1000 to $2500 to repair this issue.

wondering if I can do this myself.
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Old May 31, 2011 | 10:33 AM
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I don't know about the reprogramming, but what about the cause of the water damage? Did they do anything about that?
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