engine noise, what is it?

[marksal]

https://www.youtube.com/shorts/KgFZ9_zO_6M

I am think about buying the car need some ideas of what i am buying.

[M4cruiser]

Private video?

[marksal]

i hope this works

https://youtube.com/shorts/BOWYkWj3ncE?feature=sha...

[thebraketester]

Sounds like a belt.

[marksal]

i hope this works

https://youtube.com/shorts/BOWYkWj3ncE?feature=sha...

[SlimJim16v]

Slipping fan belt

[M4cruiser]

Water pump

[cliffords]

M4cruiser said:

Water pump

I think it sounds like water pump too.

[E-bmw]

Aux belt/pulley/alternator bearing/water pump bearing.

Get a hand-held water sprayer & carefully/accurately (on jet) get each one in turn & when it shuts up you have found the culprit.