Sunroof malfunction S430

Attempted to open my sunroof for the 1st time this year and noticed the auto feature was not working.  I had to hold the button to pull the SR forward or back.  Any idea where the problem may be?  Is it a DIY fix?

did you disconnect the battery at all, probebly need to re- learn the sunroof.
 
this is how i got mine to work.
 
http://www.mercedesforum.com/m_34424/tm.htm

Thanks ARMENDS500...it worked!  Ironically, my battery died a week ago because I left the lights on while parked at the airport.  Never used the sunroof until the other day, so I didn't pick up the problem earlier.  Saved me at $100 diagnostic!

i'm glad it worked out for you.