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X3 E83 (2004 - 2010)
Talk about the E83 BMW X3 in this forum!

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  #51  
Old 01-14-2014, 08:55 AM
bluskye bluskye is offline
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Quote:
Originally Posted by Roos_Goos View Post
Hello all,

I've read through this thread and am soon to tackle my struts which are completely gone. I've decided to go with the Bilsein HD's and found that turnermotorsport is the cheapest I could find. Do you all suggest to change out the strut mounts as well or is that more of a preventative maintenance?

Thank in advance.

Roos
Replace front strut hats, and rear shock mounts (rubber portion). If front sway bar links are orig, replace them as well since they come off the strut anyways.

Nice thing about Bilstein HD is they come with their own dust boots.

Prepare to be swearing for 2hrs taking the rear cargo bay area apart to get to those rear strut mounts.
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  #52  
Old 01-14-2014, 09:29 AM
Roos_Goos Roos_Goos is offline
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Quote:
Originally Posted by bluskye View Post
Replace front strut hats, and rear shock mounts (rubber portion). If front sway bar links are orig, replace them as well since they come off the strut anyways.

Nice thing about Bilstein HD is they come with their own dust boots.

Prepare to be swearing for 2hrs taking the rear cargo bay area apart to get to those rear strut mounts.
Thanks bluskye,

Any idea what the part numbers are for those?

Are those the "swing support"?

Last edited by Roos_Goos; 01-14-2014 at 09:48 AM.
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  #53  
Old 01-14-2014, 11:21 AM
bluskye bluskye is offline
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Mein Auto: 2006 330i / 2007 X3
Sway bar links:
http://www.fcpeuro.com/products/bmw-...d-3160600018hd
http://www.fcpeuro.com/products/bmw-...d-3160600019hd

2xStrut Hat
http://www.fcpeuro.com/products/bmw-...nt-31336760943

2xRear Shock Mounts
http://www.fcpeuro.com/products/bmw-...x3-33503450542
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  #54  
Old 01-14-2014, 02:56 PM
x3brian x3brian is offline
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I agree change it all out while you are there.

Also word of caution...I did not change my springs and it's my one regret. With the 17 inch tires the yellow and blue bilsteins stick out on the fronts. I wish I would have done the Eibach springs on all 4 corners.


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  #55  
Old 01-14-2014, 03:15 PM
bluskye bluskye is offline
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One more thing, I went so far as to replace the front spring pads (lower and upper) cuz I'm looney like that.

2x 31303411795
2x 31331128523

You can get them at bavauto or your dealer via those part #s.

The wife's car has had the new shocks for close to a year now. Everything rides smooth. The bilstein's compression rate mellows out after a month. No squeaks, rattles, nothing. All is well.

Last edited by bluskye; 01-14-2014 at 03:18 PM.
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  #56  
Old 01-14-2014, 05:42 PM
Roos_Goos Roos_Goos is offline
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Good to hear. Very excited to get this done. Going in for my first phase of work tomorrow. (Oil change, valve cover gasket, spark plugs and transmission software update) then on to suspension. Trying to get that done ASAP as I know it's beating up other suspension components.


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  #57  
Old 02-28-2014, 09:39 AM
Roos_Goos Roos_Goos is offline
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Hello my fellow x3 owners,

So... I finally got all 4 corners replaced. Ive put about 100 miles on it since i got her back on 02/26/14, Loving the ride so far. I have noticed that its not as smooth as i was expecting it to be, but i dont mind it. We'll see how it performs after they break in. So far i recomend the Bilstein HD's
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  #58  
Old 07-02-2014, 08:14 AM
KendallX3 KendallX3 is offline
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Mein Auto: 2008 X3
Struts and springs

I'm new to the forum, but I wanted to thank everyone who posted good info on here. I've ordered Bilstein HDs, Eibach Pro kit springs, sway bar links, and all associated bearings, pads and mounts. I expect to have all the parts and DIY the installation in a week or two. I know I will need spring compressors, but are there any other non standard tools I should buy or rent?

Here's the cost if anyone is shopping around:
Bilstein HD's: $ 747.80 from FCP Euro (price matched Turner Motorsports)
4 sway bar links: $90.80 from FCP
Eibach pro kit: $284.95 from Bavauto
Shock mounts, pads, and install kits: $267.60 from Bavauto
Total: $1391.15
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  #59  
Old 07-02-2014, 05:33 PM
PSUEng PSUEng is online now
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I recently had Bilstein B4s and Turner rear springs installed and couldn't be happier; my front B4s finally arrived this week, so they will go in next week. I'm glad I didn't go with HDs as the B4s are still firm but more controlled ocmpared to the worn factory parts.
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  #60  
Old 07-10-2014, 01:02 PM
KendallX3 KendallX3 is offline
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I completed my installation yesterday (2008 X3 w/ 98k) and so far I am happy with the setup. Between reading in this forum and watching YouTube videos I was mostly prepared for the whole process. While it is a different body, this video (both parts) is almost identical to my install: . Here are a couple hiccups I ran into:

1. The front struts did not want to release. The pinch bolts were stuck and even after I got them out (liquid wrench + time and impact wrench), the strut would not slide out. I was finally successful with several sprays of liquid wrench, a 5 ft 2x6, a hammer, and then a bigger hammer.
2. Assembling the new front struts was also difficult. The new nut with the Bilstein's was a 7/8 (the OEM struts had a 13/16" nut). I was not able to find a 7/8" spark plug socket. Also the shaft required a 7mm Allen wrench, but the long set I purchased only had 6 & 8. While hunting for these two tools, I purchased a 7/8" oxygen sensor socket. This didn't work either because the outside diameter was too large to fit inside the shock mount. I finally found an allen wrench set including a 7mm wrench at HDepot and used a deep socket 7/8" and a pair of channel locks to turn the socket.
3. Installing the front struts was also difficult. Again the strut did not want to slide into the pinch clamp. I was successful by installing the top three nuts to the upper shock mount and then working the steering knuckle to get it aligned with the strut (easier said than done). At this point the strut was maybe a quarter inch into the clamp. I double checked to make sure the tabs were aligned in the gap and then I slowly jacked up the steering knuckle. After each quarter pump on the jack, I used a pry bar in the clamp gap and the strut slid a little farther in each time.
4. Hockey pucks work great as jack pads and only cost about $2 each.
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  #61  
Old 09-17-2014, 10:49 AM
kenza kenza is offline
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I just purchased Bilstein HDs and the rest of hardware (spring pads, swaybars, strut hats and shock mounts). Will stick with OEM springs, as do not want to modify the clearence.
Plan on doing the work myself, probably tomorrow. Will take pics for a DIY.

Cheers!
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  #62  
Old 09-20-2014, 12:43 PM
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X3-terrestrial X3-terrestrial is offline
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Good Luck Ken! And let us know how it goes. I have Bilsteins up front and I love them!
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  #63  
Old 09-22-2014, 08:02 AM
kenza kenza is offline
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Hi! It took me close to 6 hours of relaxed work. The difference is amazing... Love the Bilsteins.
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  #64  
Old 09-26-2014, 01:57 PM
swampX3 swampX3 is online now
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good springs on this !

http://www.bbc.com/news/science-environment-29380455

Thanks to Eibach, we've now got a range of springs for the suspension.

The strength of a spring is called the spring rate, which is the force generated per mm of movement.

For a normal road car this might be around 15-20N per mm (i.e. a 2kg weight will compress the spring by one mm). For BLOODHOUND, the springs are different front and rear, at about 150N/mm (front) and 240N/mm (rear).

Fitting electronics
Taking the strain
Call it 10 times the stiffness of your family car. Seems fair enough, since we are planning to go about 10 times as fast.
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