I just bought an 07 c230. The sunroof's express open works fine but when i try the express close itll close halfway then go back to open. Then if i close it halfway and try the express close itll close all the way then go back to halfway closed. Is this normal?

 

try to reprogram it, close roof and shade all the way and hold the button closed for a few secs,then open the shade and the roof all the way and hold the button open for a few sec,
Then cycle the key off and back on ,,,try it ,hope that helps,