if its a w124 chassis check for OVP if its a 123 chassis there probably is no ovp..
the ovp could cause many random issues from hard starting to stalling.
search ovp in the archives if your car has one...
Its just one more thing to look into and there is a wealth of information on the ovp...
'92 300CE - Sold
2004 C240 - C7 Wheels
2015 ML350 - P1, Pano, Ash poplar wood, Sport Dinamica interior, Running Boards Keyless go.