dafuq is that sound?

[Wschnitz]

Starts ruffly 30 second in, its kind of a droning whine like sound, I can explain it. Sounds like something its rubbing. Or like my brake is partialy seized...

https://www.youtube.com/watch?v=LYxp-m9L_AU&feature=youtube_gdata_player

[rustybullet]

Wheel bearing. Does it go away or get louder when turning either direction?

[Wschnitz]

Goes away when turning to left, or also goes away at low speed or higher speed, makes noise at 25mph.

[Wschnitz]

Also goes off after i slightly depress the brake pedal. Not even engaging the brakes.

[tonerrrr]

Pull your tires off and check things out with the brakes if that's what you suspect. Pretty easy job to do. My buddy's e36 M3's wheel bearing just went out and you could pretty much tell as it was serious. Also, it got worse the faster he went.

[Wschnitz]

Ah Mine doesn't get worse the faster I go.. the right front brake pad was reading on the surface of the roar but it turned fine, want wedged.

[Wschnitz]

Sound still can't be explained, could it have anything to do with my leaky steering pump? I'm at minimum fluid level.

[spike68]

Guarantee its your brake caliper. That sounds exactly what happened to my car. One of my guide bolts got dirty and decided to stop adjusting, which caused the caliper to go cock eyed against the rotor. the top of the pad was leaning against the rotor, while the bottom was stuck. You might be able to clean the guild bolt, or just do what i didnt and replace the whole caliper.

Try jacking the car up and spin each wheel to see if any of them are sticking more than average

[Wschnitz]

Will do, picture of guide bolt? Or diagram? I'm dumb so anything helps haha.

[spike68]

I cant find a good diagram, but Ill take a shot at explaining it. If it dosent help, then ill take some pictures myself.

There are 2 bolts that hold the caliper itself to the car, or the caliper housing. You usually undo these bolts to swap brake pads. these bolts ARE the guide bolts. if you remove the caliper, you can actually slide the bolts in and out of the caliper. theyre used to automatically adjust the caliper when the pad wear over time. if one of them gets stuck, obviously it wont adjust properly. This is what causes the whole caliper to improperly push against the rotor, at an angle. thats where the sound comes from. over time the pad will start sticking to the rotor since one guide bolt is adjusting, but the other is not.

did that help at all?

[Wschnitz]

Yes now I get what your talking about. I'll just take my right front caliper off and power wash it all.

[spike68]

wash it, then shoot the guide bolts with some wd40. make sure you can move them smoothly.

[Wschnitz]

Looks like one of my guide bolts and is missing its dust boot. Needs new brakes also.

[spike68]

Yup. thatll do it. thats how mine hot stuck. my dust boot was there, but it was battered and wasnt covering the guide bolt.
yay for problem solving skillz!

[rustybullet]

Throw some grease on the guide bolts to keep them free.