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///M3 Forum
The BMW E46 ///M3 is the M version E46 and puts out an amazing 333 HP and 262 lb-ft of torque at stock specs! There are an amazing amount of modifications for both the coupe and convertible models so read up and get started modifying your cars today!

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Old 01-09-2013, 03:06 PM   #1
Cayne23
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wheel bearing question

The other day i was driving and i noticed a humming sound coming from my left front tire. Goes away when i turn left. Present when im turning right or driving straight. The sound wasnt there 1 week ago. So i figured it was the bearing starting to go. No big deal, easy fix. Then today i washed my car and i noticed a ring of grease around the emblem on the front left tire. Is it still a bad bearing or is something else wrong? Any help would b great, thanx
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Old 01-09-2013, 04:24 PM   #2
cityjohn
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I don't think the grease you're seeing is related to the bearing; but pull the wheel and check the dust cap to make sure.
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Old 01-09-2013, 07:50 PM   #3
Cayne23
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I noticed the humming sound after it snowed a little. I was thinking maybe salt or something got in there. I dont know what else would be leaking grease right there. If my dust cap failed and let something in, then i could see my bearing being damaged and then leak grease out of where the cap is failing. Steering wheel isnt shaking and my car stops straight.
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Old 01-09-2013, 08:52 PM   #4
$ilent ///M
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check your axle cv boot may be torn
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Old 01-09-2013, 09:16 PM   #5
Cayne23
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I dont know what to look for
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Old 01-09-2013, 10:41 PM   #6
montchobadmoves
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Car wheel bearing are press-seal or press-fit, means grease is seal inside, so if your bearing start to worn out and it's not sealed anymore, yes you can remark grease around wheel center cap.
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Old 01-09-2013, 10:54 PM   #7
choxor
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Quote:
Originally Posted by Cayne23 View Post
I dont know what to look for
Grease around the boots, tears and dry rot. Pop off the center cap or remove the wheel and take a pic of where the grease is if you can.

It definitely sounds like it's the bearing, though. Does the sound increase with speed? You can check if there's play in the wheel, but I've had a couple instances where there was no play, but it was indeed the bearing, usually when you catch it early. The bearing has to be pretty hosed for there to be apparent play.
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Old 01-10-2013, 05:25 AM   #8
Cayne23
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Yea sound gets a little louder with speed. My thought is a bearing because there is no sound if i turn left. Which takes the weight off of that tire. Not to sound dumb, but how do i upload a pic? Lol
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Old 01-10-2013, 08:10 AM   #9
choxor
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Upload to a site like photobucket and use the "insert image" button above the reply box.
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Old 01-10-2013, 01:22 PM   #10
suss1173
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When the car is on a jack, or stand you can turn the wheel/ tire with your hand, and you can usualy feel the bearing grinding if its worne out.
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Old 01-11-2013, 07:29 AM   #11
MemphisM3
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It's wheel bearing. Usually it starts when you turn left or right sound goes away make sure your replacing the right one . When you drive it for a while and not replacing its gonna go bad and even if you drive, without turning the sound will be there. Replace your bearing asap. Btw the grease you see could be torn bot, take the wheel off and inspect
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