The instrument cluster themselves are prone to failure. Add more details about the failure to Mercedes specific website forums and check this link http://www.bba-reman.com/content.aspx?content=Mercedes_Dashboard
Thank you! Very helpful information. One more question please. Could the problem be the key switch since the cluster always works after the car has completely cooled down? This only started two days ago. Thank you in advance!
I have the exact same thing going on. Sometimes the instrument panel is fully functional, then after shutting down the engine and re-starting... the instrument panel is dead (except for the outside temp., mileage odometer and time read outs). Did you ever get a solid answer to your problem?? firstname.lastname@example.org