No start from 2000 ml 320

[00ml320]

Hey guys, here is what I am dealing with now. It is definitelly an intermittent issue. Sometimes after a drive and a few minute rest the car just wont start, it will crank forever but it will not start. It seems that the fuel pump is going out but then again it drives fine. I guess after it cools down completely it starts again.

Now I have read that the crank sensor could do that when it overheats.

Let me know if you guys have any input on this. And as always thanks in advance.