FSD/Eibach Question for 550
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So I've installed the Koni FSD/Eibach combination for my 07 550. Have a quick question, wondering if anyone has ran into this issue. This was installed several months ago and recently I had 3-4 people in the car and it was bottoming out horribly. Doing 70mph on freeways, the front & rear bottoms out over expansion joints/overpasses. Bottom of the car doesn't have scrape marks either. Didnt see any instructions in the box either. I verified the part #'s on the box and I did get the set for the 550. Tirerack said I can just return it, but I do like this alot 
Anyone have pointers? Thanks
Anyone have pointers? Thanks
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Joined: May 2007
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From: Washington D.C.
My Ride: 5series
Model Year: 2004
hmm... 
Same thing happened to me today when I was on the highway my car bottomed out on the expansion joints entering and exiting the bridge, also I am trying to replace my shocks and want the FSD's how do you like them, btw will this work with h&r sports since the eibachs are only a little different, thanks
Same thing happened to me today when I was on the highway my car bottomed out on the expansion joints entering and exiting the bridge, also I am trying to replace my shocks and want the FSD's how do you like them, btw will this work with h&r sports since the eibachs are only a little different, thanks
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Joined: Jun 2008
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From: Tacoma, WA
Originally Posted by peter@vmrwheels' post='771893' date='Jan 19 2009, 03:57 PM
Just 19's, with proper offset. After all, I make wheels
Not sure if this is a spring rate, bumpstop, or fsd issue.
Not sure if this is a spring rate, bumpstop, or fsd issue.
It is probably the shocks. If you can increase the stiffness of the shocks I would do that first. If you can't thats where I would guess the issue is coming from.
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Joined: Nov 2007
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From: Boston, US
Originally Posted by peter@vmrwheels' post='771402' date='Jan 19 2009, 04:36 AM
So I've installed the Koni FSD/Eibach combination for my 07 550. Have a quick question, wondering if anyone has ran into this issue. This was installed several months ago and recently I had 3-4 people in the car and it was bottoming out horribly. Doing 70mph on freeways, the front & rear bottoms out over expansion joints/overpasses. Bottom of the car doesn't have scrape marks either. Didnt see any instructions in the box either. I verified the part #'s on the box and I did get the set for the 550. Tirerack said I can just return it, but I do like this alot
Anyone have pointers? Thanks
Anyone have pointers? Thanks
I was considering the FSD's after reading so many good things about them but I don't plan on lowering my car. I have already scraped over some speed bumps and road imperfections at 2-5 MPH.
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Joined: Mar 2007
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From: Santa Clara, CA
Peter,
The real solution here is to tell your friends to stop eating so much
With that said, I've never had a customer complain about bottoming out with this setup, maybe you need a set of bump stops?
The real solution here is to tell your friends to stop eating so much
With that said, I've never had a customer complain about bottoming out with this setup, maybe you need a set of bump stops?
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From: Omaha, NE - USA
My Ride: MY07 525xi Silver Gray
Model Year: 2007
Do you use any bump stop? If you do then bottoming out you mean as it hit the bump stop? Maybe you just need to trim the bump stop.