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luisaschroeder9

RS6 Sunroof System Frozen: Control Module Reset Guide

Experiencing major issues with my 2004 RS6 sunroof system (95841km). The sunblind is completely stuck and wont move either way. Same problem with the convertible top, totally frozen in position. Tried basic troubleshooting but getting a sunroof not initialized message. Has anyone dealt with similar sunroof control problems? Really want to avoid another costly mechanic visit if theres a simple fix. Looking for experiences with sunroof reset procedures or if this sounds like a bigger mechanical issue.

4 comment(s)

sophiaweber1

Had the exact same sunroof system failure on my 2007 Audi S6 last season. The sunroof calibration issue typically stems from a fault in the control module, not the mechanical components. When the vehicle sunroof shows not initialized messages, its often because the control unit lost its reference points. The automobile sunroof complications you describe match what I experienced, both sunblind and roof movement completely locked. While there are DIY reset procedures, my case required professional intervention because the main control module had failed. The repair involved a complete sunroof system recalibration and replacement of the control unit. This is unfortunately a known weak point in these models. The sunroof control module tends to fail around the 90-100k kilometer mark. Its a serious repair that requires specialized diagnostic equipment to properly code the new module to the vehicle. Basic reset procedures rarely resolve a full system lockup like this. Based on the symptoms, particularly the dual failure of both sunblind and roof movement, you likely need the same repair route. The complete immobilization of the system suggests a control module failure rather than a simple initialization issue.

luisaschroeder9 (Author)

Thanks for sharing your experience with the sunroof mechanism issue. Really helps knowing others have faced this. My sunroof problems got fixed about 2 months ago, but I am curious about the repair costs. The dealer told me the sunroof operation issues were related to both the control module and some worn mechanical parts in the sunroof system. Would you mind sharing what the total repair came to for you? Also wondering if youve had any repeat issues since the fix? The last thing I want is to have this problem resurface in a few months.

sophiaweber1

After getting the sunroof control module repair done, I can confirm everything has worked flawlessly. The sunroof not initialized error was completely resolved through proper coding of the new module. My total repair costs were much lower than expected at just 75 Euro for the reprogramming work. The automobile sunroof now operates smoothly with no signs of the previous issues. Unlike your case, I was fortunate that my problem was purely electronic, no mechanical components needed replacement. This explains the significant cost difference between our repairs. The sunroof operation has been perfect for the past 8 months. No error messages, no sticking, and the sunroof reset parameters have stayed properly calibrated. The control module coding seems to be a permanent fix rather than a temporary solution. The sunblind also moves perfectly now, which was a major relief given how frustrating the complete system failure was. For anyone else facing similar issues, getting professional diagnostic work done early can help avoid more extensive mechanical damage to the sunroof system.

luisaschroeder9 (Author)

Thanks for the input. Just wanted to close this thread with my repair experience. I bit the bullet and took it to my trusted mechanic last week. The entire sunroof system repair, including parts and labor, came to 850 Euro. They replaced the control module and some worn mechanical components in the sunroof track system. The vehicle sunroof works perfectly now, both the sliding function and the sunblind move smoothly. The sunroof operation is actually better than it was before the problems started. They also performed a complete sunroof reset and calibration as part of the service. While the cost was higher than I hoped, having a properly functioning sunroof system again is worth it. The mechanic mentioned these failures are pretty common at this mileage, so I am glad to have it sorted before winter. No more sunroof not initialized messages, problem solved.

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