[Haseeb1001]

Just bought this F30 335i 2013 Non X Drive, first time with a n55 and it makes this weird noise on idle but it goes away while driving on the highway, no codes no faults in DME just changed Oil and Filter but no idea what it could be. Belt tensioner was recently replaced but other than that can’t really narrow it down. Oh yeah also a non OEM oil level sensor was on the car, need to change that soon. For reference in the video, there is no foam under the engine cover.

Any help or leads would be nice, Thank You!
No idea how to upload a video here but here is a tiktok link.

https://www.tiktok.com/t/ZPREqkRRK/

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[Billfitz]

A four second clip? I can't even turn the sound on that fast.

[Haseeb1001]

Sorry about that, I was in a rush to get to work and just wanted to upload something before I left! When I get home I’ll post a longer clip in around 5 hours!

[Haseeb1001]

Here is the same clip just looped and longer for now, https://www.tiktok.com/t/ZPREqkRRK/ , hope this helps