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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Fri, Jan-02-2009, 03:39:38 AM   #1
iigigol0ii
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Default Wheel bearings

Well, ho do i know if my wheel bearings need to be changed?

When driving, if i have the music down it sounds kind of like i have truck tires on, almost like i can here and very slightly sometimes feel the vibrations from them. Lately from the back when i turn the wheel a little bit i hear a loud ticking coming from the back wheel...

Are those my wheel bearings? are there any DIY's? I did a search and was unsuccessful
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Old Fri, Jan-02-2009, 03:44:46 AM   #2
Jackalope
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The best way I know of to check them is first do a visual inspection looking for any grease seeping out or metal shavings in the area as these are a good indication of a problem. second ifyou see no such issues put the wheel back on and rotate it slowly by hand and see how it feels. Does it spin freely with a little drag? Or do you feel any roughness or chopiness as you spin it? If so then its toast. As for a DIY sorry I don't know.

Last edited by Jackalope; Fri, Jan-02-2009 at 04:33:47 AM.
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Old Fri, Jan-02-2009, 04:24:55 AM   #3
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Front wheel bearings are pretty easy to check. Jack up the front of the car and spin the left and right wheels. If one makes more noise than the other, it's probably a bad wheel bearing. (They should be pretty much silent, although it's impossible to rule out caliper rubbing without actually removing the caliper. If you take the caliper off, ANY noise when you spin it means the wheel bearing is bad.)
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Old Fri, Jan-02-2009, 03:24:01 PM   #4
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In my experience, when wheel bearings go they make a high pitched constant squeek. The squeek will change pitch or go away altogether when the car is loaded to one side or the other when cornering.
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Old Fri, Jan-02-2009, 03:31:55 PM   #5
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My wheels are quiet on a straight drive but when a turn kicks in I hear that truck tire sound. The harder the turn, the louder the truck tire sound. Is this any indication of a wheel bearing issue given that I don't hear the high pitched squeal?
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Old Fri, Jan-02-2009, 05:44:27 PM   #6
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this is what my car looked like when I had to replace the drivers side rear...







at first we thought it was leaking... but it was totally gone
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Old Fri, Jan-02-2009, 05:47:13 PM   #7
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My symptoms of a bad LR bearing were similar to Jaciuro's, except that it would do it in only one direction. It was more of a low-pitched humming sound than high pitched, like a mud tire at that corner. Replaced it and it's cured.
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Old Fri, Jan-02-2009, 08:27:40 PM   #8
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lift car up. try and move tire in and out by placing hands at 12 and 6. if there is any play in it... Wheels bearings.
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Old Fri, Jan-02-2009, 09:06:51 PM   #9
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Quote:
Originally Posted by sean454 View Post
lift car up. try and move tire in and out by placing hands at 12 and 6. if there is any play in it... Wheels bearings.
Of the 9 bad wheel bearings I have had, only one of them was apparent through that test.
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1999 323i KP/GTS2 Alpinweiß - Hood-in-the-windshield mod
1995 M3 Dakargelb/Black - S50B32/S6S420G, Diffsonline 3.91, H&R/Bilstein, Hotchkis, AS SSK, etc...
1990 325is Brilliantrot/Tan - GC/Bilstein, Sway
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1989 M3 Alpinweiß/Black - S62B50 in progress...

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Old Fri, Jan-02-2009, 09:18:19 PM   #10
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Yep. I tried the test too and it passed. It's gotta be pretty bad to fail that test.


Quote:
Originally Posted by Nick325xiT 5spd View Post
Of the 9 bad wheel bearings I have had, only one of them was apparent through that test.
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Discussing Wheel bearings in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)