2003 Audi A4 Power windows and Sunroof won't work

Tiny
TOEHLERKING
  • MEMBER
  • 2003 AUDI A4
  • 6 CYL
  • AWD
  • MANUAL
  • 107,000 MILES
My sunroof and power windows will not work. It make be a coincidence, but they started working after a car wash and stopped again after another car washing a couple weeks later. I have checked the fuses on the main fuse panel as well as some of them buried in the dash.

No luck so far.
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Friday, March 27th, 2009 AT 7:19 PM

3 Replies

Tiny
ZACKMAN
  • MEMBER
The only thing that is common to both circuit is the Comfort System Module, under the driver seat.


http://www.2carpros.com/forum/automotive_pictures/55316_03a4powerwindow_1.jpg



http://www.2carpros.com/forum/automotive_pictures/55316_03a4sunroof_1.jpg



And the one thing that render them inoperative seems to be car wash, right? I have seen this happened in 2 Jettas, not A4, but I assume that you may want to check it.


http://www.2carpros.com/forum/automotive_pictures/55316_03a4drain_1.jpg



Check the drain channel making sure that nothing (leaves, small branches, etc) blocking the drain channel near the sunroof electrical circuit and motor by the driver door. As that may cause the circuitry to shut down causing the Comfort System Module to shut down. Also look at the front driver side wheel well cover. If there is a leak, water may get into the passenger cabin, causing a short in the electrical system. Your P/W and sunroof are grounded on the left kick panel . Look at the back of the fuse boxes for possible water stain.

I hope this will help you get started.
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Sunday, March 29th, 2009 AT 2:58 PM
Tiny
TOEHLERKING
  • MEMBER
Does the CSM have components or is it a complete replacement for issues like this? Also, if water is "sneaking" in, should it "get better" once it drys?

Thanks
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Sunday, March 29th, 2009 AT 7:51 PM
Tiny
ZACKMAN
  • MEMBER
CSM is a complete replacement. As for water "sneaking in", if it leaves a trail of hard water stain, that may still cause a "short".
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Monday, March 30th, 2009 AT 9:12 PM

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