Got my car back from Mercedes today.
They found nothing wrong with it.
Checked for fault codes - none.
Checked for fuel system leaks - none.
Checked actual values for rail pressure -
normal readings standing and at idle.
Checked for low side fuel supply pressure, key
on, 35 psi normal.
Checked actual values for Crankshaft Position Sensor - normal.
Pulled down Sam Control Module and checked fuel pump
connector is in good condition.
Battery tested good.
Tried starting after overnight and during day, started normal
Diagnose = $136.50 ( wich may be returned if problem returns
and can be found and repaired under waranty ). I think this has
been handled in a fair manner.
This will close this topic until next time.