[ngh0218]

Hello everyone,

This is my first time posting here. She is 2018 440i GC and it is 137k kms(85k miles) on it. She has this rattle/knock sound on idle/low rpm. I have been researching it to figure it out the problem, but I still don't solution yet.

Here is a video.
https://drive.google.com/file/d/1AEv...ew?usp=sharing

It is little hard to hear, but you should be able to hear tick tick tick noise.
This gets faster as rpm goes up and it blurs out after 2500 rpm.

I changed engine oil, spark plug, belt and belt tensioner. It became slightly less after all these changes, but it is still there...

Any input would be appreciated.