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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Steering Wheel Vibration Solved!



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      05-29-2013, 12:24 AM   #23
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I had the same problem, and it turned out to be a bad tire.

I had the tires balanced at least 3 times by the dealership before I went to an indy shop and stood by the 'Road Force' operator and cross examined him about how bad the tires really were. He initially said they were OK, but then said, 'well, there is one that is actually borderline' for having a hard spot in the tire.

Replaced it under warranty and have not had a problem since.
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      05-29-2013, 07:13 PM   #24
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OK, my situation sounds very close. I get a hum and slight shimmy at 55mph to about 65mph then it subsides. I replaced both front wheel bearings but it didn't really help. I just had my wheels rebalanced a month or so ago, no change. I was leaning towards a bad front tire but this is making me rethink that. If the tire balances...road force balances out fine, it cannot be the tire could it?
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      11-02-2013, 12:00 AM   #25
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I want to add to this thread that I had the exact same issues as the OP. I just recently had an all new front end installed (front M3 control arms, tie rods, end links, suspension mounts etc) and it has fixed my vibration issues perfectly. The trust arm bushings are to blame!
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      11-02-2013, 09:07 PM   #26
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Thanks for the heads up. I guess this is a common BMW thing and doesn't matter what series. My 1998 E39 had the same symptoms and thrust arms fixed the shimmy also.
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      11-03-2013, 07:30 PM   #27
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I plan on doing this myself SOON!!!
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      11-16-2014, 06:45 PM   #28
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I am also experiencing a vibration, from what I gathered in this thread is that none of you have an xi?
Is there a fix for the xi? Meaning I guess, are the thrust arms available for the xi?
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      12-22-2014, 02:31 PM   #29
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Quote:
Originally Posted by Felixm79 View Post
I am also experiencing a vibration, from what I gathered in this thread is that none of you have an xi?
Is there a fix for the xi? Meaning I guess, are the thrust arms available for the xi?
I had the same symptoms on my Xi, new thrust arms/ bushings did the trick. I just had the dealer install new OEM parts.
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      12-22-2014, 08:11 PM   #30
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How many miles are you seeing these bushings go out at?

What are the options on the Xi cars? I'm assuming the M3 parts don't play nice with the Xi...
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      12-23-2014, 10:08 PM   #31
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Nice find, thanks for sharing.
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      12-24-2014, 06:58 AM   #32
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Many in this thread are calling the piece a thrust arm. Are we talking about the tension strut (9) or the wishbone (14)? OR is the thrust arm a totally different piece?
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      12-28-2014, 06:48 PM   #33
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Swapped the rears to the front yesterday and went for a ride. No difference. This vibration is making me crazy.

I can twist part number 14 with one hand on both sides. With the wheels off, and my hands on the rotor, I can turn the rotors (as if the car was turning right) and get a clunk noise.

I'm at 57k miles and CPO. Are these a CPO part? Car has KW V1.
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      12-28-2014, 07:41 PM   #34
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Quote:
Originally Posted by cdgatti View Post
Many in this thread are calling the piece a thrust arm. Are we talking about the tension strut (9) or the wishbone (14)? OR is the thrust arm a totally different piece?
Control arm = Trailing control arm = Wishbone = Front Lower Control Arm = FLCA or LFCA

Thrust arm = Leading control arm = Tension Strut = Front Upper Control Arm = FUCA or UFCA

Found this image searching online:
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      12-29-2014, 10:33 AM   #35
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Well that certainly explains it. Good find.
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      12-29-2014, 10:56 AM   #36
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Originally Posted by SLOWER View Post
Well that certainly explains it. Good find.
Stumbled across it searching, pure dumb luck, glad it helps.

BTW, the upper and lower control arms are called that because they install into the knuckle from the upper and lower sides of their respective mounting points. Forgot to mention that, sorry. Makes it easier to remember.
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      12-29-2014, 11:04 AM   #37
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So has anyone had the arms or bushings replaced under CPO?
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      01-04-2015, 06:01 PM   #38
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The more I read it looks like these are a wear and tear item and not a CPO warranty item. Can anyone confirm?
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      01-06-2015, 11:27 AM   #39
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Quote:
Originally Posted by MicaCeli View Post


09 Tension strut with hydraulic mount, left 1 31126769797 $122.04
09 Tension strut with hydraulic mount,right 1 31126769798 $122.04

10 Set rubber mounting f pull rod 1 05/2011 31120393540 $98.93
10 Hydrobearing 2 31126763719


You could get these (stock but with Rubber Bushings)

http://hpashop.com/product.sc?produc...categoryId=175

Or the M3 ones

http://hpashop.com/product.sc?produc...categoryId=175
ECStuning also has this for sale but #13 in the diagram isnt shown in the photo.

http://www.ecstuning.com/BMW-E92-335...l_Arm/ES49241/

Does this come separately or should it come with the thurst arm?
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