Hey everyone, I'm new here

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I drive a Seat Ibiza TDI with the Asz engine, producing 131 horsepower.
Okay, here's what happened: I was out and parked the car for about 2 minutes. When I tried to start it, it turned on, so I turned it off because I had forgotten something. Less than 10 seconds later, I tried to start it again, but it wouldn't start, or it would start briefly and then immediately turn off.
And now, every time he starts it up for the first time, it starts and then immediately shuts off again.
If I then want to restart it, it starts making meaningless noises.
What could that possibly be? Turbo!?
I really need help; I'm completely lost.