Car turns over but engine shuts off shortly after, power still works?

What is your question?

When I turn on the car The engine does not sound smooth, it idles pretty bad then the engine shuts off by itself but the power, air works fine. (Air turns on automatically when I turn on the car idk why) I tried turning it back on and it turned on but then engine shut off again I left it over night, came back and it drove fine. A few days later same thing happened I don't know what's wrong.

What makes this problem better or worse?

Random

How long has your 2001 BMW 330i had this problem?

2 weeks