Originally Posted by Oriental Mirage

I tell them I drive prefer a bit hard and They confirmed again that the spring F14/R10 is really enough for Road driving. The F20/R14 is really hard and near Track setting.

alskompressor "A look at the UK Yellowspeed dealer says their package is F22/R18. "
I think that number may be mistaken. I ask my friends for suggestion and referring to the figures from other cars. There are rare for car with spring rate higher then F12/R10 and those car weight around ~1400kg and the drivers are driving reallly hard on street. of course these cars have different suspension geometry. But I guest F14/R10 should be enough for our ~1800kg car and it's coherent with what I got from yellow speed.

I think of the harder rear as suggested by aarkaah. but as he mentioned that he set the damper on really hard side. and I am afraid the damper cannot provide enough damping for higher spring rate.

Originally Posted by Oriental Mirage

I have started a new tread to record my progress in ABC delete.

"W215 ABC delete, Yellow speed racing coilover DIY installation"

Originally Posted by fireman685

There are no sway bars on the CL's. I have no personal experience with any suspension conversion but others have stated the car feels heavy and does in fact have body roll issues without the ABC. I'd advise keeping the ABC on your CL65. Keep the fluid clean and drive it regularly.

Originally Posted by ArmenPhotos

Hi,

Thanks for this very interesting thread

We own a 2004 CL 65 AMG since 8 years and absolutely love it
The car has 55 000 miles and so far (knock on wood) we didn't get any ABC problem.

But I have some questions :

- Is the car with Yellowspeed struts as comfortable as an original one with the ABC ?

[AA] Yes. But ABC is better in some areas and YellowSpeed is better in others. See driving impressions above. IMHO the ABC was twitchy and I never felt 100% planted and connected to the road (standard struts feel). I do now.

- Did you need to replace the sway bars or you kept the original ones ?
[AA] W215 CL's have no sway bars. I planned to install some using W220 parts - never got around to it. The car is stable enough for me.

- Did you need to replace the power steering pump ?
[AA] No. I never got to step two of the conversion - installing sways and then removing ABC components. If I did, I would replace the pump with the W220 single purpose one. The ABC lines are capped on all four sides. And, the ABC was disabled at the dealership for me.

- Does the car feel lighter after the replacement ?
[AA] The car feels more planted. True road feel is back. As an example - my ABC sucked when I went over a road with several rivets/ripple... Yellowspeed goes over it smooth. Counter-statement: ABC adjusted quickly, Yellow Speed will not.

- Is there more body roll than before ?
[AA] I am certain there is but I cannot honestly notice it.

The advantage of the ABC is that you get a crazy comfort level but also the complete lack of body roll

[AA] ABC also lets you raise and lower the car etc... all advantages... however, for a car now worth 10-15k or less....the disadvantage of the ABC is the cost to repair and the potential cascade of repair costs. A shock replacement cost is nuts... and literally 1/4 of the value of the car.

[AA] In all honesty, the car's value continues to drop... the maintenance cost is its own undoing. I love my car - but I am being practical. The yellow speed advantage is cost, height level and damper control. The yellow speed disadvantage is that it is new to market and we do not quite know the quality of the product (w215 instance specifically) how robust the solution is.

Thank you !
Cheers

Originally Posted by aarkaah

@Oriental Mirage,

can you please link it to this one also.

Thanks

Originally Posted by Oriental Mirage

https://mbworld.org/forums/cl55-amg-...tallation.html


aarkaah: Can you please quote if there any number print on your springs?
Thank you

Originally Posted by dgibs

I notice you say to NOT preload the springs. My springs were preloaded out of the box. the included instructions say to not adjust the factory preload settings, were you saying the same? or let the preload out of the springs?

Also for the ride height. Are your measurements of the entire length of the strut? What is 27 inches exactly?

regards,

Originally Posted by dgibs

Just an FYI to anyone considering this conversion:

Good luck getting valuable information out of yellow speed. I emailed a few different service reps and they couldn't answer any of my questions or help me in any way.
I got a real laugh when the rep asked me if my car is an extended wheelbase model.. in response to me asking what spring rate options are available for the w215 kit.

Thankfully I was sent the stiffer F20/R14 springs.

I'm almost positive the slanted top mount is the only correct option for these cars. I haven't found anyone who has used the flat top version. Just go on eBay and look at w215 abc struts. All of the fronts have a slanted top mount.

Originally Posted by AlexMercedes

Does this coilover conversion kit exist for the W220? I would imagine that the S600 would be too heavy for it even if it does exist. Also, I was checking out their website, and it said that it is only dampening adjustable and not height adjustable? The ABC suspension is very complex and unreliable, so I wanna be prepared for the inevitable failure... I know this is a W215 thread, but any weigh-ins for the W220 would be appreciated. This is a great thread, it sheds some light on people who are suffering with ABC. Keep it up!

Originally Posted by Reckless

+1 My W220 S600 is sitting flat on my driveway. I was about to order strutmasters but looking at yellow speed now.

Originally Posted by aarkaah

@dgibs,

customer service is not great. Took me a while to get to someone also via email. And they are missing in the weekends.

Have you installed?

Originally Posted by Blkvip

will this also work for the 216?

Originally Posted by dgibs

the install went well! I'm very pleased with the quality and performance these struts offer. These coilovers put the strutmasters kit to shame (speaking from first hand experience) there is no comparison. To achieve my current ride height I have the dampening set on the stiffest setting on all 4 corners. I will soon increase preload so I can reduce the dampening and it will be perfect for my taste / driving style.

Originally Posted by alskompressor

Just got my Yellowspeeds installed and have some early findings. I got the F20 / R/14 spring rates and have them installed with 26.5 inches to the fenderlip front and rear and at 26 clicks from the softest front and rear on the standard 19 rubber. Looks like I have to increase my hieght as it has bottomed out once and I get tire rub at full lock. Ride is excellent with little sense of body lean despite no sway bars ( yet!). May try more stiffness but suspect a move to 27 inch to fender lip is in the cards. Ride is very smooth and I beleive I could tolerate some additional stiffness / preload as well.
I wish changing rear strut length was easier but suppose this is a short term issue until I get ride height set. Did like the looks of the lower stance!

I have my abc pump recirculating which is working fine. Was going to switch to S430 single cavity pump but this was much easier for time being.

Originally Posted by V12TTenthusiast

So I was thinking about buying a CL65 to add to my garage if the coilovers pan out. My only question is there a way to remove the ABC warnings? I know on my SL65 coilovers ABC can be coded out via SDS on Developer mode. Can the same be done on a CL65?