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Mercedes GT Roadster Sunroof Issue

My 2015 Mercedes GT Roadster with a gasoline engine is showing a 'Sunroof not initialized' error. The sunblind is stuck, and the convertible top won't open or close. The sunblind also refuses to retract or extend. I recently had some coding work done and suspect that might be related. Has anyone run into this before? Any ideas on how to fix it?

A 2015 Mercedes GT Roadster is experiencing a 'Sunroof not initialized' error, causing the sunblind to be stuck and the convertible top to malfunction. The issue arose after recent coding work, suggesting a possible link. A suggested solution involves performing a specific reset procedure for the sunroof control unit using diagnostic software, ideally at a qualified workshop. The problem was resolved by resetting the system, confirming it was a coding issue.

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4 comment(s)

I have a GT Roadster as well and experienced a similar issue with the sunroof system after some aftermarket modifications. It sounds like your sunroof control unit might need a reset. See if you can find a procedure for a vehicle sunroof reset. You might need diagnostic software.

Thanks for the quick reply! When you say 'sunroof reset', do you mean a simple disconnect the battery kind of thing, or is there something more involved? And by diagnostic software, are we talking dealer-level tools?

Disconnecting the battery might not be sufficient. The sunroof mechanism likely requires a specific reset procedure through diagnostic software. While dealer-level tools are ideal, some aftermarket options can also perform the necessary functions. I would advise consulting a qualified workshop.

Just wanted to thank you for your help! I took it to a workshop, and they confirmed it was a coding issue affecting the sunroof control. They were able to reset the system, and everything is working perfectly again. Cost me about 75€. Thanks again!

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MERCEDES

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GTROADSTER