I’m based in Saudi Arabia, using 1.5T engine remaining all normal condition.Which engine? Both offerings were turbo, the 1.5T and the 2.0T.
What are any other conditions present when this happens, such as ambient air temp, oil level, coolant level, etc.?
What country are you in?
Always in the morning and I go to work, or if a car stops without running for 8-12 hours, and now the situation has evolved in the first operation, the vehicle turns off again and turns on again, this sound comes out, yes I am in GccIt's sounds awful. I have not viewed a video with the same noise. In your location does this car have a warranty? Is it a GCC car? Do you have any warning lights on?
My first thought is "I bet that's what it sounds like when you've busted a piston". Good news I don't think it's that because it shouldn't only make that sound after 8 hours cold. Maybe a leaking injector pooling up and you're getting some misfires? But then you'd have fault codes.
I'd be interested in seeing a video of the engine running normally for example on a warm restart.