Here is my zero $ / 2 min fix: Sunroof has a a calibrate function.
Push the roof button up (as if you want to open vent) and hold it. After a few seconds, the roof will start a full cycle opening and closing roof and blind.
Keep holding the button until the cycle is over and here you go. Sunroof memorized fully opened and closed positions as new calibration.
That fixed the rattling noise I had !!!

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Jeremy