Eibech Pro Expirence - Mercedes Benz SLK Forum

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#1 Old 11-17-2012
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Eibech Pro Expirence

Hello Everyone,
I am hoping someone can help me out. I have a 2005 SLK350 that I bought second hand through this forum, the vehicle is said to have Eibech pro lowering springs. It sits low, so I assume that it does.

My Question: Does anybody else have these springs installed (The search indicates yes) and are they seeing irregular tire wear in the rear? My rear tires seem to be wearing very unevenly.

The inside of both the tires wore out in 7,500 miles! I could take a picture and upload it a little later today to show you the difference.

History:
Nov 16th 2011: I had new BFG rears put on at 102,000 miles
I noticed that the left rear inside tread was gone, but the outside still had plenty of tread. The tire installer did mention that the rims were bent. To help isolate, I switched the rims from left to right to see if I got the same wear.
October 20th 2012: New Rims and Tires installed all around (18' Mandrus Wilhelm & Nitto Motivo tires) at 109,501 miles, because the inside tread on both tires again were gone, while the outside still had tread.

November 14th 2012: Took vehicle to MB dealer for 4 wheel alignment. They installed 2 bolt kits in front left. and mentioned that alignment is within factory spec. I pull out of the dealership with my brother behind me in another vehicle and I drive through a puddle heading down the road, he calls me on my cellphone and says that he can only see half the tire tread outline on the pavement from the water puddle. (indicating to me again that the tire is not sitting 'flat')

Looking for any assistance, is anyone else seeing this behavior in their vehicle? Is their anything I can do? When I called the dealer, they said it is a modified suspension, and if they have some specs they can try and correct it...

Thanks,
Clayton
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#2 Old 11-17-2012
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Clayton, the tires don't "sit flat" moving in a straight line, due to negative camber. The top of the tires tilts "in". Lowering springs may make this even more so.

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#3 Old 11-17-2012
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You'll need a camber kit like the K-Mac, or adjustable control arm, so that the excess negative camber can be adjusted out during your next alignment. I have the Eibachs on all 4s, and K-Macs on the rears and do not have this problem of inside wear.
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#4 Old 11-17-2012
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Quote:
Originally Posted by Durkatlon View Post
You'll need a camber kit like the K-Mac, or adjustable control arm, so that the excess negative camber can be adjusted out during your next alignment. I have the Eibachs on all 4s, and K-Macs on the rears and do not have this problem of inside wear.

You will definitely need camber kit as mentioned when lowered. Both camber kits mentioned are great to correct the issues. I preffered the camber arms ove the K-Macs because you can installed the arm your yourself and also can adjust the camber yourself without the alignment machine. The K-Macs kit required proffessional installation and required alignment machine for adjustments. You're looking at least around $800 for parts, installation and alignment. The Camber arm only cost me $175 for part, installed and do adjustment myself.
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#5 Old 11-17-2012
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Now those other threads I read are making sense! Thanks for the input so far. I guess my last question:

Where to get these?

Option A.) K Mac Bushings
http://www.k-mac.com/pages/newprods/...ercedes_04.htm
#502026 H

Option B.) Adjustable Camber Arm
Where can I purchase this product?

Thanks in advance
Clayton
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#6 Old 11-17-2012
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If you're going with the K-Mac kit, I wouldn't worry about purchasing it. Just find a shop that will install them and let them deal with it. The company is in Australia so it will take a little while to get them. For the control arm I would honestly do the same thing as I just described. I guess you *can* install them yourself and make your own adjustments, but I would just again let a shop purchase and install them, and then do a professional 4-wheel alignment. I don't know about each MB dealer of course, but my dealer has a really great guy doing alignments, and he does not have any issues dealing with the aftermarket parts that are part of the process.
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#7 Old 11-18-2012
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Quote:
Originally Posted by cwrisley View Post
Now those other threads I read are making sense! Thanks for the input so far. I guess my last question:

Where to get these?

Option A.) K Mac Bushings
http://www.k-mac.com/pages/newprods/...ercedes_04.htm
#502026 H

Option B.) Adjustable Camber Arm
Where can I purchase this product?

Thanks in advance
Clayton

Not sure how good these are..

http://mbartsperformance.com/slk-class-mods.html

http://www.ebay.com/itm/Mercedes-Ben...ec9cbf&vxp=mtr
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