[yoof]

[ATTACH]undefined[/ATTACH]Hello everyone, it's my first post of probably many! I bought a used 2011 328i from a used car dealer with 96k miles a few months ago so you already know it has issues, I've fixed a lot of them but there is one that is still here and not ignorable.

There is a video attached of the noise.

A few weeks ago I was driving and paused my music and noticed this strange sound coming from the right side of my car. I noticed that it stopped while I was steering left and got arguably worse while I was steering right and gets faster paced while going higher speeds.
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I thought it was the brake calipers being seized because we lifted it and the front right brake was grinding against the rotor (and the front left too, but not to the same severity) so we used anti seize, filtered out the old fluid (which was basically black) and fixed the brakes grinding (wheels would make friction sound while turning on the lift, now they don't) but still, that same sound still exists while driving above like 10mph.

I'm wondering, is this the wheel bearing? Did something just get stuck up there? What else could it be?

Thanks for reading! Hopefully I can get this figured out so I can move on to the gas leak issue. Thanks!

[yoof]

Darn video won't upload, give a min

[yoof]

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[yoof]

https://drive.google.com/file/d/1hpW...ew?usp=sharing

Screw it, here's just the file on Google Drive

[jsunma]

Could be lots of things, but given what you said about the front brakes and the condition of the brake fluid, have you factored out the rear brakes as being the issue? How do those rotors look? Any flat spotting or scorching that might indicate a dragging caliper? How about the parking brake? Does it work? Is it properly adjusted (at the wheel...since you don't adjust the parking brake at the lever in the cabin)?

I'm not sure what it means to "filter out" the brake fluid. Hopefully you mean "replace" the brake fluid. Since it was discolored and probably not changed ever or any time recently. 96K miles with bad brake fluid and screwed up front brakes would leave me thinking that the problem with your grinding noise is rear brake related.

It'd be pretty unusual (although not impossible) for you to have a bad rear wheel bearing at under 100K miles.

If it were my car, I'd plan on doing a proper 4 wheel brake job with pads and rotors (sounds like those front rotors are probably toast anyway...and btw, what do you mean about "using anti seize"?), flush and bleed the brake fluid, make sure the parking brake is properly adjusted (you'll see the parking brake hardware when you pull off and replace the rear rotors), and also make sure that the brake backing plates/shields aren't bent. Then drive around (without music) and evaluate your noise from that point.