2004 Mercedes-Benz S55 AMG Questions

All 2004 Mercedes-Benz S55 AMG Questions

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I know that all of these issues cannot have happened simultaneously. What could it be? A bad speed sensor, a dirty TCM? Thanks in advance for any suggestions.
When I try to raise the roof, one of the two flaps on the rear deck sticks and is not lined up.. The dealer says the entire control unit needs to be repaired in order to adjust the angle of the flap. Can this be?
to low don't drive. It rights itself when I begin to move ?
I need to know - what may cause the lights (including the interior cabin light & cluster lights) to flicker very slightly when the enigine is running or ideling. When both the front seat massage (pulse) are turned on ...
Any idea what may cause the lights (including the interior cabin light & cluster lights) to flicker very slightly when the enigine is running.