After reading up on Mercedes Cold Start issues, here is what I have
replaced without any improvement of the condition!
Fuel Pump Check Valve
Cold Start Value
Water temp sensor
Checked for leaks around fuel pumps.
The longer the car sits, the harder it is to start.
1 to 2 hours, starts quickly
6 to 8 hours, requires cranking for 4-6 times @ 5-6 seconds per crank.
what else could it be?
it cannot be the relay issue, due to sitting time differences.
Also while at stop light, sometimes if I dump the pedal it will
sputter and die if I don't ease off the pedal. But once RPMs get a
little higher(like on the highway), I can dump the pedal and it runs