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Old 05-31-2014, 08:11 PM   #1
mawz61
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Join Date: Jan 2011
Location: Gladstone Qld Australia
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My Ride: 328i E46
Blind Bambi

I have No Idea
I just changed out my front hubs, rotors and pads to try to eliminate a humming whirring noise coming from the front right side of my E46 but the noise is still there. the noise starts at 40kph and gets louder as I get faster and when I go into a right-hand curve it goes quiet and when i go into a left hand curve it get somewhat louder. The only thing I can think of now is sound reflection from the rear bearings. If anyone has some suggestions I would be happy to hear what you would have to say
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Old 05-31-2014, 09:17 PM   #2
Rajvosa
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sounds like the right wheel bearing is gone.
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Old 05-31-2014, 11:09 PM   #3
E46 Coupe
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Jack corner up and check for wheel movement
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Old 06-05-2014, 09:12 AM   #4
blakxr
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I have the same thing. I just replaced both front bearings/hubs but its still there. I also found a blown out left shock so it might be the rears I need to do as well. I'll keep you posted.

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Old 06-05-2014, 10:24 AM   #5
bumpgums
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Are you certain its from the front?
Jack it up or put on the hoist and get it up to speed,you could be misinterpreting a faulty diff or a rear wheel beering for a frontal noise. Keep us posted
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Old 06-07-2014, 03:23 PM   #6
mawz61
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Yeah I am thinking it may be a rear end noise so I will do the easy bit first and replace the bearing and rotors and see if that gets rid of the noise. I just hope it isn't the diff.
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Old 06-07-2014, 04:41 PM   #7
bumpgums
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Mate don't replace anything yet! Jack it up or hoist it and hear where its coming from,sounds like wheel bearing or diff and these are common on the 46s. diagnose first then replace! Dont make it a guessing game! Save yourself alot of time and money. Best of luck,keep us posted
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Old 03-27-2015, 05:07 PM   #8
mawz61
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whale oil beef hooked

So I done all the rotors pads wheel bearing front and rear without any luck. unfortunately I striped a bolt between the diff and right hand final drive axle so I had to order a new one. it arrived a couple of days later so I jacked up the Bimmer and replaced the bolt and thought while I am here I might as well check the oil level in the diff and yes it was low so I topped it up and yes NO MORE NOISE. comes back to the old saying "KISS" Keep It Simple Stupid.
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Old 03-27-2015, 06:06 PM   #9
bumpgums
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lol next time jack it up like we said and run it up,would have located the noise instantly and saved you $$$
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