Wife had the same complaint with her 2002 CLK320. With her car it turned out to be a bad alternator.

After replacing the alternator and recharging the battery all the MILs went out except the ESP. That had to manually reset by turning the steering wheel stop to stop KOEO.

__________________
Mike Tangas
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72

'02 CLK320 Cabriolet - wifey's mid-life crisis

2012 VW Jetta Sportwagon TDI...at least its a diesel

Non illegitemae carborundum.