Hry guys, 

Firstly sorry for my bad english, but i cant find solution for my problem with 1.5 TSI engine.

There is weird sound, you can see on my video below. The sound you can hear 3 times. 

100k kilometers on tacho.

Thanks for helping

Video - 

Could be loose tappets

 

A ticking, tapping or clacking from the top of the engine is usually indicative of a potential issue with your engine's tappets. At first it can seem insignificant in volume, but gradually over time the 'rattling' will get louder and indicate an imminent major mechanical issue

 

Pretty sure the car has hydraulic lifters rather than old style tappets.

OP have a look at this thread and see if any similarities in sound.

https://www.briskoda.net/forums/topic/491479-tappets-or-piston-slap/

 

Yes, the video might have been relevant for a tiny percentage of vehicles 30 years ago but not for anything within living memory.

Hydraulic lifters need oil, I only had one car that made tappet noise and the car was due a service.

Post service all was quiet.