Two days ago started a weird noise with cold engine. I took today a video with outside temperature at parking facility about 7°C.
So when I start the car, there are no additional noise, but at the second I press gas pedal and increase engine rpm, noise begins and does not stop unless I start car again or engine warms up. If I start car again, there is no noise until gas is pressed again. Today noise went completely away after 5 minutes of idling. It sounds like the noise is coming from the right side (left side on video recorded from front) or the center of the engine, which consists all the belts, oil pump, fuel pump and water pump. Also as well as injectors.
Link to the video: https://www.youtube.com/watch?v=UxvGeUiksZo
I have tried to listen the noise but I am unable to determine where the noise is coming. Could it be something wrong with oil pump? Fuel pump? maybe injectors? AC belt is not currently installed and I do not believe its the alternator belt or wheels.