SL-Class (R230) 2003 -- 2012: Discussion on the SL500, SL550, SL600

SL/R230: ABC suspension = MacPherson strut suspension?

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Old 02-25-2009, 05:05 AM
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ABC suspension = MacPherson strut suspension?

http://en.wikipedia.org/wiki/MacPherson_strut



the strut setup is still used on high performance cars such as the Porsche 911, all BMWs except the 2007 X5, and several Mercedes-Benz models.
I wonder if some of the benz models include the R230s.
Old 02-25-2009, 02:53 PM
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No, ABC = Active Body Control.

That means electronically controlled fully hydraulic dampers.

No springs or shocks.
Old 02-25-2009, 07:06 PM
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03 SL500
Document about ABC Suspension
http://www.mercedestechstore.com/pdf...%203-06-02.pdf


Strut looks like this

Last edited by daltex; 02-25-2009 at 07:11 PM.
Old 02-25-2009, 09:45 PM
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Originally Posted by daltex

On a siede not ei bought a replacement front right strut from the vendor from which this photo came for $399 brand new and it was installed without issue and is awesome. Compare that to $1500 at the dealer

just an fyi
Old 02-25-2009, 10:40 PM
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it was installed without issue
Was the install done through MB dealership or did you go to a mechanic shop?
Old 02-26-2009, 11:19 AM
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Has to be done at dealership or an indy with a STAR or comparable.
SBC has to be put into "rodeo" mode to bleed, if I remember correctly.
Old 08-20-2009, 08:21 AM
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Originally Posted by R230_Nicke
No, ABC = Active Body Control.

That means electronically controlled fully hydraulic dampers.

No springs or shocks.
Not true!

Sorry to rain on the "fully hydraulic" parade here, but the ABC struts are a very complex combination of a hydraulic cylinder, steel spring and a gas shock absorber.







Old 08-25-2009, 08:39 PM
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Is it true that the struts are connected parrallel to the spring coil in the ABC suspension system?

The struts connected in parrallel will help dampens the bumps and body roll while driving?

So if the struts leak and no longer work to dampen the vehicle, you would still be able to drive your SL500 but the ride will be very bumby?
Old 08-25-2009, 10:30 PM
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Originally Posted by Robertpel99
On a siede not ei bought a replacement front right strut from the vendor from which this photo came for $399 brand new and it was installed without issue and is awesome. Compare that to $1500 at the dealer

just an fyi

email or pm sellers web site or link.
thanks.
Old 08-26-2009, 09:38 PM
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same here with the seller of those struts. The part alone is 1600..
Old 08-27-2009, 09:34 AM
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Ooops looks like my pictures died...





Old 08-28-2009, 06:37 AM
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Hey Oxygen, where did you get these incredibly detailed pics? I bought a crappy service manual off eBay, and it basically sucks. Are these pics from a service manual you bought somewhere?

good stuff, thanks!!!
Old 08-28-2009, 11:56 AM
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http://www.startekinfo.com/StarTek/index.jsp
Old 08-28-2009, 04:05 PM
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I had my ABC system replaced with new struts and they mercedes dealer charged me nearly 11,000. I didnt know if it was worth it or not but the ride is still a little rough.
Old 10-31-2009, 08:43 AM
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Originally Posted by Robertpel99
On a siede not ei bought a replacement front right strut from the vendor from which this photo came for $399 brand new and it was installed without issue and is awesome. Compare that to $1500 at the dealer

just an fyi
I just found out my front nearside (RHD car) shock is leaking and needs to be replaced. Would this shock suit my car with ABC etc? Like you say, Mercedes want £1000 ($1500) for the part so $399 even with shipping on top would be a huge saving.
Old 10-31-2009, 09:57 AM
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The cheapest replacement strut that I know of is from www.parts.com for about $1000. You can easily install it yourself, but when finished the suspension must undergo a "rodeo routine" using Star Diagnosis.

Star Diagnosis used to sell on eBay for $500 plus shipping. Seller cnautools has them for $600 plus shipping but has no auctions for them.
Old 10-31-2009, 02:42 PM
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Originally Posted by bobterry99
The cheapest replacement strut that I know of is from www.parts.com for about $1000. You can easily install it yourself, but when finished the suspension must undergo a "rodeo routine" using Star Diagnosis.

Star Diagnosis used to sell on eBay for $500 plus shipping. Seller cnautools has them for $600 plus shipping but has no auctions for them.

Thanks for that, I'll see if potomac still sell them, their price is excellent and it'll be well worth shipping one over. If not I'll try Parts.com, thanks.

Last edited by Wiz; 11-01-2009 at 02:10 PM.
Old 11-01-2009, 08:36 AM
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Originally Posted by bobterry99
Star Diagnosis used to sell on eBay for $500 plus shipping. Seller cnautools has them for $600 plus shipping but has no auctions for them.

I got mine from Yohotech(Jackie) http://www.yohotech.com/products/YH003.htm

Got the BMW GT1 & the Star Compact 3 from them.
Saved me a bundle so far.
Old 11-17-2009, 04:34 PM
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Struts

Originally Posted by Rick SL55
email or pm sellers web site or link.
thanks.
curious whats the website that you bought the strut for $399. Thanks.
Old 11-17-2009, 07:30 PM
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Originally Posted by vbgambini
curious whats the website that you bought the strut for $399. Thanks.

never got the reply or info.

however here'ssome info:

http://www.benzworld.org/forums/r230...available.html

https://mbworld.org/forums/sl55-amg-...nsion-kit.html
Old 11-18-2009, 01:16 PM
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I don't have an account over on benzworld, has anyone found out if they will start to rebuild other makes like the r230, or are they strictly working on W's?
Old 11-18-2009, 09:19 PM
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just cop/paste:

"Hello everyone, my name is Adam. I am here to introduce myself and my company to this forum. We currently remanufacture air suspension parts for all the W211 & W220 Mercedes vehicles. I can see that many of you have had numerous issues with your ABC suspension system on your Mercedes. We are in the final stages of our R&D on a completely remanufactured ABC shock. We hope to have our remanufactured front and rear shocks available for market by January 2010. We are now a supporting vendor and member on Benzworld.org

I will certainly keep everyone informed on all these new products and special promotions once they are available. We are also looking for any old ABC shocks for future remanufacturing. We are currently paying $50.00 each for any old blown out ABC shocks you may have sitting around.

If anyone has questions please feel free to message me, or contact me directly at adam@arnottinc.com

Air Suspension Kits, Air Shocks, Suspension Parts, Struts - Arnott Industries
Thank you
Adam"

www.arnottinc.com
Old 05-11-2018, 09:37 PM
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I have had the opportunity to drive an SL550 with the coil over suspension conversion and I own a SL550 with ABC and the ABC feels far superior to me. Just my two cents but it will pay to buy the SD system and wrench a bit yourself.
Old 05-11-2018, 10:36 PM
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Originally Posted by danaw007
I have had the opportunity to drive an SL550 with the coil over suspension conversion and I own a SL550 with ABC and the ABC feels far superior to me. Just my two cents but it will pay to buy the SD system and wrench a bit yourself.
Old thread, but I try to reinforce this point where i can. People say "oh just throw a $1200 set of coils in there and be done with ABC", but those people haven't had good working ABC and then removed it. ABC is amazing, a fully active suspension is real special tech and the perfect way to address suspension in big heavy performance cars, but it's expensive and requires upkeep. Putting a set of cheap coilovers on a car not designed for them, even if you add in the required roll bars and such, is still a bandaid fix and you get a car that will never be able to corner flat and fight dive/squat motions, so now your 5000lb car FEELS like a 5000lb car. If you've ever had a properly working ABC car, you know you can put it in sport mode and hustle it around way more than you would ever expect, and the car does not feel heavy or ponderous like an airmatic car or steel spring car should at that size/weight. If you are gonna buy a CL/SL/S with ABC, fix it and enjoy the car the way it should be, or pick a lower level car as a cheap runaround. ABC makes the cars special, gotta keep it.
Old 05-15-2018, 09:20 AM
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Leaking ABC , buy leak stopper

Originally Posted by Bam Bam
Is it true that the struts are connected parrallel to the spring coil in the ABC suspension system?

The struts connected in parrallel will help dampens the bumps and body roll while driving?

So if the struts leak and no longer work to dampen the vehicle, you would still be able to drive your SL500 but the ride will be very bumby?
just buy leak stopper from this guys, and leak is stopped in about 4 days, http://www.qmiitw.com/QMI_Engine.html if do not have leak, buy the Teflon hydraulic treatment, as prevantive treatment and ABC will not give y mutch problems ,if the pump is not worn out.


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