Thrust Arm Bushing Time! - BMW M5 Forum and M6 Forums
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post #1 of 76 Old 28th August 2007, 07:04 PM Thread Starter
M5inAtlanta
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Thrust Arm Bushing Time!

I started to get the shaking when I brake and checked otu my thrust arm bushings and sure enough they need to be replaced. I have been reading about the X5 and Vines thrust arms. I know the X5 ones can be sourced at any dealer but it seems that lately more people have preferred the vines. I looked for these on ebay with no luck (I found I6 E39 ones, but I want to say these are different than the V8 ones) Can anyone please send me some advice on which ones I should purchase?
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post #2 of 76 Old 28th August 2007, 09:12 PM
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Quote:
Originally Posted by M5inAtlanta View Post
I started to get the shaking when I brake and checked otu my thrust arm bushings and sure enough they need to be replaced. I have been reading about the X5 and Vines thrust arms. I know the X5 ones can be sourced at any dealer but it seems that lately more people have preferred the vines. I looked for these on ebay with no luck (I found I6 E39 ones, but I want to say these are different than the V8 ones) Can anyone please send me some advice on which ones I should purchase?

How did you check out the bushings ?

Beastpower has bushings by powerflex for the E39.

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Last edited by tbalon; 28th August 2007 at 09:12 PM.
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post #3 of 76 Old 28th August 2007, 10:55 PM Thread Starter
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I am not positive that they are the same but after reading posts on here I saw that the I6 E39 had different bushings than the V8 E39 (which are similar but not as heavy duty as the V8 X5 ones).
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post #4 of 76 Old 29th August 2007, 12:34 AM
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I had vibration under braking and the dealer replaced the bushing(s)
under warranty with OEM parts. After only 10K miles, I'm having signs
of vibration again. Hence my wanting to know how to check the bushings.

'03 Jet Black E39 M5
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post #5 of 76 Old 29th August 2007, 12:54 AM Thread Starter
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Check out this thread:
http://m5board.com/vbulletin/showthr...st+arm+bushing

It is complete with pics and his were worn like that after only 15k miles!
Is your vibration only under braking or when you are driving too? Can you see dark spots on the rotors? Have your tires been recently balanced?
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post #6 of 76 Old 29th August 2007, 03:43 AM
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I just replaced my bushings with X5 ones at 83k miles. Oddly enough the thrust arms were shot too so I replace them as well. The very slight shimmy I had under cold braking is now gone.

Steve
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post #7 of 76 Old 29th August 2007, 04:25 AM
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Or you could spring the Dinan Monoballs and fix that problem for good.. Just a thought.
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post #8 of 76 Old 29th August 2007, 04:36 AM Thread Starter
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It is a little hard to stomach $700 when I could go through 7 sets of these for that price. Maybe if I tracked the car or had a big brake kit on it...but I don't really plan to do either of those.
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post #9 of 76 Old 29th August 2007, 07:49 AM
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Vines - screwups galore!

Just a heads up on the Vines ones...I ordered mine on July 17th...they arrived TODAY! (Aug 28th) and they were the WRONG ONES!!! I got one HD one and one regular one. I am so dissappointed with this company so far it is unreal! I actually ordered their HD front end rebuild kit (Thrust arms, Control arms, Tie rod ends)

This is what I got! We'll see what they do to remedy the situation.
Attached Thumbnails
Thrust arm bushings.jpg  

Thrust arm BJ.jpg  

Thrust arm compare.jpg  


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post #10 of 76 Old 29th August 2007, 03:23 PM
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Quote:
Originally Posted by M5inAtlanta View Post
Check out this thread:
http://m5board.com/vbulletin/showthr...st+arm+bushing

It is complete with pics and his were worn like that after only 15k miles!
Is your vibration only under braking or when you are driving too? Can you see dark spots on the rotors? Have your tires been recently balanced?

Rotors are fine. My vibration is only under braking, slight but noticeable.
I originally thought it was brakes / rotors as I had a similar issue with one
of my 3 series models. The dealer inspected the rotors and pads and said
they were fine. Their head mechanic drove it and said it was bushings.
It took 3 trips to the dealer and a discussion with the factory rep before
they would fix it.

Tires are brand new. I had the car aligned before installing them. They
have been on now for about 10K miles and look like new. Rotors are
fine and I've just received a new set of pads from Dave Z which I plan
on installing before the snow flies.

I suspect that my dealer ( Gault BMW in Binghamton ) may have only
replaced the single defective bushing. At any rate, vibration is only
slightly noticeable at this point. I'm gong to take a look at the bushings
this weekend to see what I can find.

One thing that will definitely cause bad vibration under braking is to
wash your car and not drive it afterward to get any water off the rotors.
I once washed the car before a trip and parked it in the garage. When
I returned I had very bad vibration under braking. The rotors rusted a
bit under the pads and you could see a very distinct mark on the rotors
where the one section was discolored. While alarming, this disappeared
after about 100 miles of driving.

'03 Jet Black E39 M5
Dinan SSK
Cold Air Brake Ducts
Defi VSD Basis HUD
Valentine 1 (X off, Pop On)
Blinder M27 Laser Jammer (new)
iPod inteface w/remote
Bluetooth ULF retrofit
Ultimate Cupholders
Shadow Kidney Grilles
Royal Purple Synchromax Transmission Oil
Red Line 75W90 Differential Gear Oil


Visit My Site



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