what do u think it is crankshaft position sensor? 99 mercedes clk 320

What is your question?

i have a 99 mercedes benz clk 320 when i go to start car it turns over and trys to start but as soon as it does it shuts back off instantly? i have done some research on the problem and majoritty pointing toward crankshaft position sensor what does it sound like to everyone plz help thanks