This AM put car into reverse and immediately got a warning light to the right of the gear indicator. Icon of car inside brown outline. Car had little power but did get to my destination a mile or so away. Called MB using MBUX. Operator said she had no idea and nobody was there on Saturday in customer service. "Just take it to a dealer or I can order a tow." Worthless. Got to destination. Turned off car and restarted and it went away. When I returned home, no warning light and no problem. It looks like the suspension light in the manual but I do not have any optional suspension system and it did not have the arrow that the manual states. I'll take it in anyway so dealer can plug into diagnostics to see if it threw an error. But anyone have an idea what happened?