Sounds from the engine ..

Hi friends..
When I first started the car in the mornings, there was a little crackling noise from the engine. It passes after a while. I looked at the engine blindly with the flashlight but I couldn't understand where it came from. I wonder what is happening to you. (206 1.4 hdi)

If you shoot a video and share it, those who know can help better.

Well, brother, it's hard to say something here. There may be many reasons for this.