Can anyone please help with this?
This recently developed and I'm not sure what it is. N52
About 6000 miles ago, I've replaced the following parts in this picture:
#4 pulley
#6 pulley (bottom pulley of the tensioner)
Could it be the pulley above #6?
Here are some clips:
This one I took upon cold start. As the rpms settled down, the sound frequency decreased as well
https://streamable.com/lttyo
https://streamable.com/4ods2
https://streamable.com/fo2ai
Then after driving for 8 min
https://streamable.com/6p4dk
Then coming back home after a 20 min drive or so
https://streamable.com/wdlbp
Looks like the chirping noise slightly decreased but I can still hear some weird train like sound
Thanks everyone