2013 CLS63 Rear suspension failure
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From: Hollywood, Fl
'13 CLS63, '13 BMW 750Li
2013 CLS63 Rear suspension failure
My rear suspension just took a crap today!!! I'm taking the car to the dealership tomorrow…
I installed about a month ago the KW's from Vivid with the adjustable rear links and was not able to set the rears at the same height as the front.(was set 2 times)It would always self adjust higher than initially set, after about 2-3 days. Yesterday, it was set for the 3rd time really low and was thinking than it will come up like it did before and it would match the fronts. Well, it did and everything was beautiful until later on today…I went to do a eraand and noticed that the car became very bouncy and rough/stiff…sure enough i pulled over and the rear is sitting really, really low/ slammed…the fender is like 1/2" close to the rim. Looks like i'm a low rider…Anybody can suggest what could've happened?
I restarted the car after a couple of hours and the rear does not come up anymore…springs blown, compressor…what you guys think went bad?
Any input greatly appreciated.
I installed about a month ago the KW's from Vivid with the adjustable rear links and was not able to set the rears at the same height as the front.(was set 2 times)It would always self adjust higher than initially set, after about 2-3 days. Yesterday, it was set for the 3rd time really low and was thinking than it will come up like it did before and it would match the fronts. Well, it did and everything was beautiful until later on today…I went to do a eraand and noticed that the car became very bouncy and rough/stiff…sure enough i pulled over and the rear is sitting really, really low/ slammed…the fender is like 1/2" close to the rim. Looks like i'm a low rider…Anybody can suggest what could've happened?
I restarted the car after a couple of hours and the rear does not come up anymore…springs blown, compressor…what you guys think went bad?
Any input greatly appreciated.
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From: THE Orange County, California
2024 C8 Z06- 2025 BMW CS- 2022 Porsche 992 GTS
Ok I was never able to get the links with KW to match the fronts with my CLS- so we used the links (leaving it higher) and then my tech did some manual adjustments to bring it down. What I think happened here is over correction which occurs after various periods of driving. The odd part is its not raising so Id put the stock links back on and see where the car goes. Hopefully you have a local tech who can do such things. I have had two sets of KW sleeves for airmatic cars the rear links were never correct to match the front so both times my tech manually went under the rear and adjusted the sensor to lower the car.
I never had the car recorrect but we would drive the car for about 3 miles after each adjustment and initially the car would correct so once we got it dialed then it remained stable for the remainder of my ownership.
I never had the car recorrect but we would drive the car for about 3 miles after each adjustment and initially the car would correct so once we got it dialed then it remained stable for the remainder of my ownership.
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From: Hollywood, Fl
'13 CLS63, '13 BMW 750Li
Hey Vic, thanks for your input.
Update on the suspension: driver side adjustable link that came from KW with the kit was broken off completely...made out of plastic !!!
I called Vivid Racing and they have also adjustable rear links made out of metal....man, i wish i knew before...I'll have them tomorrow and i'll be back at it again with the same approach.
It worked for me by having it adjusted lower than the fronts because it compensated and it came up every single time. Hopefully we'll be able to guestimate it close enough, so when it comes up, it will match the fronts.
I wish i had a MB tech that can tweek/fine adjust the sensors...
Here are some pictures.

Yesterday, before the link broke

After

Back on stock links...till tomorrow, lol.
Update on the suspension: driver side adjustable link that came from KW with the kit was broken off completely...made out of plastic !!!
I called Vivid Racing and they have also adjustable rear links made out of metal....man, i wish i knew before...I'll have them tomorrow and i'll be back at it again with the same approach.
It worked for me by having it adjusted lower than the fronts because it compensated and it came up every single time. Hopefully we'll be able to guestimate it close enough, so when it comes up, it will match the fronts.
I wish i had a MB tech that can tweek/fine adjust the sensors...
Here are some pictures.

Yesterday, before the link broke

After

Back on stock links...till tomorrow, lol.
Last edited by adibaiz; Dec 19, 2013 at 12:58 PM.
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2024 C8 Z06- 2025 BMW CS- 2022 Porsche 992 GTS
Thats an interesting link from KW- mine were both orange. And get this, both had the words "eibach" etched on them meaning KW was outsourcing Eibach for their links. I never saw links like the one you have. Im glad its just that since its an easy fix.
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'13 CLS63, '13 BMW 750Li
Thats what Vivid Racing sold me with the KW kit.
When i called today and *****ed about it, they said they will get a warranty claim from KW...but they can get me the metal adjustable links....
When i called today and *****ed about it, they said they will get a warranty claim from KW...but they can get me the metal adjustable links....
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KW in the beginning sold the springs with non-adjustable links but later switched to these plastic adjustable links... Hope this helps
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From: Hollywood, Fl
'13 CLS63, '13 BMW 750Li
You are funny Emeric...but if i were you, i would change them also, before the same thing may happen to you...it's only $90. They should've made them out of metal...the OEM ones are not plastic...KW made a mistake..
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'13 CLS63, '13 BMW 750Li
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From: Clearwater Beach, Florida
2016 Cls63s AMG
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From: Hollywood, Fl
'13 CLS63, '13 BMW 750Li
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From: Hollywood, Fl
'13 CLS63, '13 BMW 750Li
Thanks for the compliments! My C63 was nice, but i just wanted more power and did not want to dish out $20k+ for the supercharger lol.
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From: Scottsdale, Arizona
2020 S63 Coupe, 2006 Hummer H1 Alpha, 2018 McLaren 720S, 2022 Porsche 911 TurboS, 2022 Tesla Model X
I got the adjustable rear links which were installed along with H&R springs up front (KW won't fit the 2013 4MATIC molds). They were all metal and excellent quality, looked better made than the OEM links.
While I didn't get an aggressive drop with this setup (about 3/4" all around) it looks much better and did not affect the ride at all. And it was inexpensive. So I'm very happy with it. Dyno-Comp here in Scottsdale did the install/alignment.
While I didn't get an aggressive drop with this setup (about 3/4" all around) it looks much better and did not affect the ride at all. And it was inexpensive. So I'm very happy with it. Dyno-Comp here in Scottsdale did the install/alignment.
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I got the adjustable rear links which were installed along with H&R springs up front (KW won't fit the 2013 4MATIC molds). They were all metal and excellent quality, looked better made than the OEM links.
While I didn't get an aggressive drop with this setup (about 3/4" all around) it looks much better and did not affect the ride at all. And it was inexpensive. So I'm very happy with it. Dyno-Comp here in Scottsdale did the install/alignment.
While I didn't get an aggressive drop with this setup (about 3/4" all around) it looks much better and did not affect the ride at all. And it was inexpensive. So I'm very happy with it. Dyno-Comp here in Scottsdale did the install/alignment.
Last edited by Steinhart; Dec 21, 2013 at 10:52 AM.
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From: Hollywood, Fl
'13 CLS63, '13 BMW 750Li
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From: Scottsdale, Arizona
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And unless K&W has revised their coil-overs, the H&R springs are the only option on the 4MATIC models.
Dyno-Comp charged 3 hours labor plus $120 for an alignment, which I was happy with. Another shop down the street from them wanted nearly double for the same job. I supplied the H&R springs and links myself, got them for $350 shipped from Mike @ AdvancePerformance
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This is the only pic I have since the car was lowered. The 3/4" is just about perfect - it didn't mess up the ride or camber and eliminated the unsightly wheel gap. The adjustable links were all metal, and seemed to be superb quality.
And unless K&W has revised their coil-overs, the H&R springs are the only option on the 4MATIC models.
Dyno-Comp charged 3 hours labor plus $120 for an alignment, which I was happy with. Another shop down the street from them wanted nearly double for the same job. I supplied the H&R springs and links myself, got them for $350 shipped from Mike @ AdvancePerformance
And unless K&W has revised their coil-overs, the H&R springs are the only option on the 4MATIC models.
Dyno-Comp charged 3 hours labor plus $120 for an alignment, which I was happy with. Another shop down the street from them wanted nearly double for the same job. I supplied the H&R springs and links myself, got them for $350 shipped from Mike @ AdvancePerformance
Thread Starter
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Joined: Oct 2004
Posts: 459
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From: Hollywood, Fl
'13 CLS63, '13 BMW 750Li
This is the only pic I have since the car was lowered. The 3/4" is just about perfect - it didn't mess up the ride or camber and eliminated the unsightly wheel gap. The adjustable links were all metal, and seemed to be superb quality.
And unless K&W has revised their coil-overs, the H&R springs are the only option on the 4MATIC models.
Dyno-Comp charged 3 hours labor plus $120 for an alignment, which I was happy with. Another shop down the street from them wanted nearly double for the same job. I supplied the H&R springs and links myself, got them for $350 shipped from Mike @ AdvancePerformance

And unless K&W has revised their coil-overs, the H&R springs are the only option on the 4MATIC models.
Dyno-Comp charged 3 hours labor plus $120 for an alignment, which I was happy with. Another shop down the street from them wanted nearly double for the same job. I supplied the H&R springs and links myself, got them for $350 shipped from Mike @ AdvancePerformance



