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Suspension & Braking Forum by BimmerWorld
Have some questions about suspension or brake setups for your E46 BMW? Get all your answers here!
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Old 04-03-2014, 12:03 PM   #21
aarondb4
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You might have your tire shop recheck the balance on those tires. I did brand new FCA's with bushings and ball joints, got it aligned and balanced and had a shake. Took it back in for balance, one wheel was off a bit, got that fixed and all is smooth now.
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Old 04-03-2014, 12:58 PM   #22
ewdavis3
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Originally Posted by HacksawMark View Post
What is your wheel tire setup? Could be one of the wheels is slightly off balance but you said they were balanced. From the symptoms you provided, my guess would be tires or the struts are worn.
Stock 16" rims, with new bridge stone tires... just had balance checked by tire shop who said they were balanced


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Old 04-03-2014, 01:02 PM   #23
racin366
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Originally Posted by ewdavis3 View Post
Have not changed the tie rods yet, going to have my mechanic check them out today!

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USING YOUR EYES AND HANDS, INSPECT THE FREAKING TIRES VERY CLOSELY.
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Old 04-03-2014, 07:09 PM   #24
ewdavis3
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Mechanic just showed me its my left ball joint. After I get a new control arm I'll be ready to ride!

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Old 04-03-2014, 08:04 PM   #25
Cavi Mike
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Quote:
Originally Posted by Benny Minn View Post
With many BMWs the FCAs and FCABs are the most common culprit for a shimmy in the steering wheel. It seems natural to consider those for the E46 as well.
Yeah no it's not. Don't know how many times it has to be explained to you people but parts that don't spin can't cause a vibration. I don't know who the moron was that put this into your guys heads but I really would love a shot at him. And that's a good one - it being a BMW specific problem - no, it's specific to this forum because it was an E46 owner that made this up and planted it into your brains.


Shimmy can only come from a wobbling wheel or the brakes. These are the only things that can cause a steering wheel shimmy:
Bent wheel
Wheel mounted improperly (debris between wheel/rotor/hub)
Out of balance wheel/tire
Out of round tire (broken belt or uneven wear due to driving for an extended period with an out of balance wheel)
Warped rotor
Seized caliper

Worn bushes can accentuate a shimmy but they are not the cause of it. Whether you want to believe that or not doesn't change the facts.
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Old 04-03-2014, 10:22 PM   #26
ewdavis3
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Can u change ball joints without buying new control arms?

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Old 04-03-2014, 10:29 PM   #27
Yewzer B Lewzer
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Shaking steering wheel

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Originally Posted by Cavi Mike View Post
Yeah no it's not. Don't know how many times it has to be explained to you people but parts that don't spin can't cause a vibration. I don't know who the moron was that put this into your guys heads but I really would love a shot at him. And that's a good one - it being a BMW specific problem - no, it's specific to this forum because it was an E46 owner that made this up and planted it into your brains.





Shimmy can only come from a wobbling wheel or the brakes......

Consider that a bad FCAB can lead to mis-alignment, then subsequent abnormal tire wear, then wobble. In this example the abnormally worn tire is the direct cause of the wobble but the root cause is the bad FCAB.


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Old 04-04-2014, 12:23 AM   #28
ewdavis3
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Originally Posted by Yewzer B Lewzer View Post
Consider that a bad FCAB can lead to mis-alignment, then subsequent abnormal tire wear, then wobble. In this example the abnormally worn tire is the direct cause of the wobble but the root cause is the bad FCAB.


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Tire are not worn... they r really new

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Old 04-13-2014, 10:43 AM   #29
TrentW
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Originally Posted by Cavi Mike View Post
Yeah no it's not. Don't know how many times it has to be explained to you people but parts that don't spin can't cause a vibration. I don't know who the moron was that put this into your guys heads but I really would love a shot at him. And that's a good one - it being a BMW specific problem - no, it's specific to this forum because it was an E46 owner that made this up and planted it into your brains.


Shimmy can only come from a wobbling wheel or the brakes. These are the only things that can cause a steering wheel shimmy:
Bent wheel
Wheel mounted improperly (debris between wheel/rotor/hub)
Out of balance wheel/tire
Out of round tire (broken belt or uneven wear due to driving for an extended period with an out of balance wheel)
Warped rotor
Seized caliper

Worn bushes can accentuate a shimmy but they are not the cause of it. Whether you want to believe that or not doesn't change the facts.
With all due respect, that's simply not true. Worn CAB's can cause the wheel to shimmy at highway speeds. Perhaps you've never owned an E34 before. Notoriously famous for this exact issue--along with the E31, E39, etc., etc. http://blog.bavauto.com/5597/bmw-fro...-arm-bushings/

A good indicator of worn bushings on the E46 is excessive wear on the inside edge of the front tires.
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Old 04-13-2014, 12:51 PM   #30
SoCaLe39
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^^^ I have this exact issue at the moment and is one of the reasons why my new style 135 wheels aren't on. FCAB are shot, inner edges of my front tires are worn and I'm pretty sure my ball joints are done too. Complete suspension and brake overhaul coming very soon!
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Old 04-13-2014, 01:58 PM   #31
Benny Minn
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Originally Posted by TrentW View Post
With all due respect, that's simply not true. Worn CAB's can cause the wheel to shimmy at highway speeds. Perhaps you've never owned an E34 before. Notoriously famous for this exact issue--along with the E31, E39, etc., etc. http://blog.bavauto.com/5597/bmw-fro...-arm-bushings/

A good indicator of worn bushings on the E46 is excessive wear on the inside edge of the front tires.
My E34s were notorious for this even when everything else checked out fine (even with a completely different set of wheels or new brakes). BUT, the shimmy was only at certain speeds. It was nicknamed "the 55-65mph shimmy" because that's where it was most pronounced, often disappearing by 75mph…and seemed to be the result of some sort of harmonic resonance issue. This is why I said earlier that it wasn't out of the realm of possibility to think that this might also apply to an aging E46. The OP's description, however, doesn't fit that prognosis and I haven't seen much evidence that E46 suspension is as susceptible.
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Old 04-14-2014, 01:16 AM   #32
ewdavis3
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I got new controll arms and bushings, and thay got rid of some play. I still need to do my tie rods

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Old 07-21-2014, 03:45 PM   #33
mrbitcoin
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wheel shake vibration

I have done all of the things below and still have a slight wheel vibration:

New LCA and Bushings
New rotors and calipers
new tires, balance and aligned

I am think about doing the wheel bearings next but also wondering if maybe its possible a new set of CAB's could be causing this? Maybe I got a bum set or something not sure. If not the wheel bearings I am thinking I will change the bushings again to a stock set instead of aftermarket.
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Old 07-23-2014, 06:16 AM   #34
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if you have money to just throw parts at, sure no problem. do you have aftermarket rims or stock ones?
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