Every once & a while my car doesnt start. I wait 30-55 min; and i can get it to go. I have been out shopping and standed too. Usually happens in morning. Did you find a fix

with out it being a constant prolbem it is hard to pinpoint , but i would first check all connection and ground straps and clean your batt terminals then have a starter test done while the starters hot if it test fine i would replace the starter relay or ignition relay

Hi, This sounds like the fuel pump needs replacing. Please leave me feed back: Malcolm Campbell, Thanks.

when you try to start it is your starter working?

BAD CRANK SENSOR ON TOP OF ****** HARD TO SEE FOLLOW WIRES, OR FUEL PRESSURE LOW BAD PUMP IN TANK..RENT TOOL AT AUTO ZONE HOOK UP TO FUEL RAIL SHOULD HAVE AT LEAST 45 50 PSI OF PRESSURE IF GOOD THEN CRANK SENSOR.WHEN IT DOESNT START CHECK FOR SPARK IF NO SPARK GOOD CHANCE ITS BAD.ITS ABOUT 45.00 BUCKS FOR NEW ONE AND ABOUT 35MIN TO PUT ON.GOOD LUCK

Check Fuel Pressure with a gauge when it does run

Fuel Pump may be failing

Check that the Cooling Fans come on
& it isn't going into fail-safe, if that applies

Check coolant,not just look at recovery tank
Remove radiator cap & look

Have to have your car checked over once
or twice a year at a repair shop

Not just wait for break down maintainance

Sounds like the crankshaft position sensor needs to be replaced. They are a common problem with the Mercedes. That sensor is the one that the engine control module looks at to see if the engine is running. When they get hot and stop producing a signal the engine control module thinks the engine is not running and shuts of the fuel. After waiting awhile they cool down and the vehicle will start up again. I've changed many of them when I worked at the dealer. Tricky part is when there working and the car is running there will be no check engine light on or code stored. Usually will only have the code when the car won't start. Let me know what you end up finding out on it but that would be the first place to look and probably the cheapest.

intermitten problems are the worse, when it wont start check fuel pressure with a gauge, and then check for spark, i have spent days on problems such as this, what you have to find is what is missing, fuel ,spark, is maybe coolant leaking into one or more cyls, i have seen air in the fuel system that only cause problems when under hood temp is high, open the hood and it cools enough to to start, hope this helps

o2 sensor will not stall your truck,ecm will bypass o2 code and run on open loop,or ecm default setting,dont search further ! your problem is all related to remote starter and bypass,youll have to fix wiring properly to original state,or your problem will probably get worse!

clarify me(my home languege is not english),starter is not turning(work)!?and you have a good battery so the TWICE(imobiliser) is the problem!
But if the starter turns,can be crankshaft sensor,fuel pump,fuel pump relay.
Connecting the TECH2 is the best to start diagnostic

is the check engine light on? if so this will lead you in the right direction once you get the code.