well today the problem is not there, car starts as it should.
I think the culprit is bad gas.
Looks like I have some talking to do to the gas station and possibly the BBB.
'92 300CE - Sold
2004 C240 - C7 Wheels
2015 ML350 - P1, Pano, Ash poplar wood, Sport Dinamica interior, Running Boards Keyless go.