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Correction (this should have been listed for the rear FRONT: As far as the bounce at the rear I have the dampeners on the rear at one click from fully shut.
I also did not mention that setting the ride height was very tricky because none of the springs compressed at the same rate. If you set the height at the same distance between the 2 collars (IE 4" on the rear ) and set the car down, it would be off by about 3/4" to 1" of ride height between the driver side and passenger side. It took a few tries to get the height even on both sides.
Correction (this should have been listed for the rear FRONT: As far as the bounce at the rear I have the dampeners on the rear at one click from fully shut.
I also did not mention that setting the ride height was very tricky because none of the springs compressed at the same rate. If you set the height at the same distance between the 2 collars (IE 4" on the rear ) and set the car down, it would be off by about 3/4" to 1" of ride height between the driver side and passenger side. It took a few tries to get the height even on both sides.
Have you figured yours our yet? I seem to have the opposite issue as you...too bouncy in the rear. Not so bouncy on surface roads but on freeways, going above 60mph, as I approach a dip in the road, my car seems to dip down and jump up too much...almost feels like the wheels are going to come up off the road. Currently, I have the ride height in the front just above the tires, damper is at max and only a few mm of preload. The rear is a tiny bit higher but rest is the same. While, it is better than all the other configurations I have tried, it is still too bouncy. BTW, I have yellow speed racing coilovers with 20kg springs on front and backs. They are on my 03 s600. Any advice would be greatly appreciated.
Have you figured yours our yet? I seem to have the opposite issue as you...too bouncy in the rear. Not so bouncy on surface roads but on freeways, going above 60mph, as I approach a dip in the road, my car seems to dip down and jump up too much...almost feels like the wheels are going to come up off the road. Currently, I have the ride height in the front just above the tires, damper is at max and only a few mm of preload. The rear is a tiny bit higher but rest is the same. While, it is better than all the other configurations I have tried, it is still too bouncy. BTW, I have yellow speed racing coilovers with 20kg springs on front and backs. They are on my 03 s600. Any advice would be greatly appreciated.
I would try loosening the preload on the springs all the way around first. Loosen the collars until the spring is loose then tighten it one turn to keep the spring from having play in it. This helps quite a bit. you will have to play with the clickers to get the best ride afterwards. I feel the 20kg springs are a bit stiff. I dont drive the car much but in the future i may change rates.
I am not happy at all with the rear coil springs from yellowspeed
as they don't sell 20kg springs I decided to buy a whole second set and convert myself
a pro in the UK can make you custom springs but I would have to send him the whole coil overs and that was close to a whole new set's price
so wt*
they come with 14kg rear and 20kg front
after all the work I found out that there is no special preload at all, just the spring size minus 1/2 cm so they don't move
so preload on these springs is bull****
the front springs are shorter then the rear but you can compensate with the coil adjustment
just copy the none preload from the front to the rear
now I have 20kg front and 20kg rear
test drive tomorrow
Do you still have your 14kg Yellow Speed Racing rear springs that you did not use? If so, I would be interested in buying them...my 20kg springs are just not working out... apparently, these 20kg springs I special ordered for the rears, are just too stiff not allowing the shock to play it's important role. I can order a set directly from Yellow Speed, but I thought I would see if I can save a few bucks and you can help out a fellow Mercedes owner.
I would try loosening the preload on the springs all the way around first. Loosen the collars until the spring is loose then tighten it one turn to keep the spring from having play in it. This helps quite a bit. you will have to play with the clickers to get the best ride afterwards. I feel the 20kg springs are a bit stiff. I dont drive the car much but in the future i may change rates.
I have taken all the preload off the rear springs and the ride is better but still dangerous on the freeway. Especially if I hit a dip while going 70mph+...feels like it lifts the whole rear off the road on the rebound. So, after futher evaluation, I have determined that the 20kg springs in rear, are just too stiff. As you previously mentioned, it does not allow enough sag/droop and leaves the shock out of the equation. Did you ever get your ride right with the 20kgs in the rear? I'm thinking of getting a set of 14kg or 16kg to correct this...?
This is my experience with the Yellowspeed so far. I did the 20kg front and rear and the car is too stiff for a comfortable ride. I installed the front sway bar from an S class and purchased the rear sway bar but I feel it does not need the rear since the car does not sway in turns. I feel the 20kg front and rear do not allow enough "free-sag". This creates a situation where the wheel does not travel out enough to soak up the bump correctly and the strut tops out prematurely. the harshness is mostly felt in transitions into driveways or uneven intersections where you feel a jolt as the car travels diagonally over a bump. This is compounded by the spring being too stiff and not soaking up the bump and the body of the car travels up with the bump. I released the preload from the front and I plan on releasing the preload from the rear to soften it up. the next step if that doesnt get it will be to remove the front sway bar. the sway bar links the 2 front springs together and actually adds to the stiffness. Again these are just my thoughts on what i have.
FRONT: As far as the bounce at the rear I have the dampeners on the rear at one click from fully shut. The front is at about 15 last i checked. I let all of the preload out of the front springs and it did help the stiffness but not on the bigger bumps.
REAR: I have not let the preload out of the rear yet because the 20kg sping is shorter. This makes the preload ring tuck inside the chasis too far to reach. I will have to unbolt the top of the strut and lower the assembly to release the preload on the spring.
I completed my YSR coilover conversion about two weeks ago now. I ordered the 20kg spring rate for the rear coilovers but, I'm discovering that they are a little too stiff for what I'm looking for. I'll be replacing them with 14kg springs in a few days but thought I would see if someone on the forum would be interested in a set of 20kg springs. BTW, these are on a 03 s600. Please PM me if anyone is interested.
I completed my YSR coilover conversion about two weeks ago now. I ordered the 20kg spring rate for the rear coilovers but, I'm discovering that they are a little too stiff for what I'm looking for. I'll be replacing them with 14kg springs in a few days but thought I would see if someone on the forum would be interested in a set of 20kg springs. BTW, these are on a 03 s600. Please PM me if anyone is interested.
Let the readers please note that you are in a CL W215 sub forum and my setup is for V12 engines
If I understood well, your car is a S600, not a CL
Pmercury, which set up do you recommend for a Cl500 ,for a confortable driving 90% close to the ABC 20Kg front 16 kg rear and what do you think about Strutmaster,if you use,and install a sway bar in the front, I'm in the process to star converting my 03 Cl500 ,I still having the ABC working OK in my car but I just want a piece of mind
I completed my YSR coilover conversion about two weeks ago now. I ordered the 20kg spring rate for the rear coilovers but, I'm discovering that they are a little too stiff for what I'm looking for. I'll be replacing them with 14kg springs in a few days but thought I would see if someone on the forum would be interested in a set of 20kg springs. BTW, these are on a 03 s600. Please PM me if anyone is interested.
HI how much you want for the set of 20kg springs,you can email me at gapenas@yahoo.com
Pmercury, which set up do you recommend for a Cl500 ,for a confortable driving 90% close to the ABC 20Kg front 16 kg rear and what do you think about Strutmaster,if you use,and install a sway bar in the front, I'm in the process to star converting my 03 Cl500 ,I still having the ABC working OK in my car but I just want a piece of mind
Hi
with strutmaster you will sit high
no way to ajust
also, the CL has a very different chassis then the S600
I am very happy with the front springs on the rear with 1 cm preload
and front s600 sway bar
He asked me to sell my 14kg for 40$ so I guess he will sell his 20kg to you for 40-50$
a pair
Thanks for the info Pmercury, do you think that I need to have slanted in the front or the flat coilovers,can fix without a problem? I don't know why they have 2 options,maybe the difference take if you plan to install a swaybar,Which one you use ,I know that you have a W220,the W215 is diferent,the struts are in a little angle
Thanks for the info Pmercury, do you think that I need to have slanted in the front or the flat coilovers,can fix without a problem? I don't know why they have 2 options,maybe the difference take if you plan to install a swaybar,Which one you use ,I know that you have a W220,the W215 is diferent,the struts are in a little angle
Ctravis- I read your other post & found out 1 of your Strutmasters is leaking that's why you're thinking about upgrading but why not ask for a replacement since it's lifetime warranty?
I have not done it yet but If I do remove it i will post on how it feels. I just feel it needs to be softer overall. I have taken it on Mountain roads and it is very planted right now so when i remove the sway bar i will test it on the same roads and if it feels unsafe the sway bar is going back on.
Ctravis- I read your other post & found out 1 of your Strutmasters is leaking that's why you're thinking about upgrading but why not ask for a replacement since it's lifetime warranty?
oh wow that's right! I forgot they have lifetime warranties. Thank you for that reminder
however, I'm REALLY intrigued by the idea of adjustable coilovers, the strutmasters are fine, but with my aggressive driving and my 20" rims, this boat of a car could really use adjustable coilovers.
I mean I didn't take the risk of ignorantly dropping the Cl55 engine into this cl500 because I wanted to drive slow haha!
plus. if I'm already going to be replacing a shock/strut, might as well spring for a whole new set. I would love to be able to have my car "lowered" like it was with ABC. Strutmasters simply does not give that "'lowered" look!
I think it was pmercury who stated that WITH swaybars, he was able to get a bit of a more pleasant ride and less stiffness with his coilovers while retaining good suspension characteristics. sounds about right in my experience. so im really interested to hear your experience with and without sways
I have not heard anything from CEIKA in a week. I have started talking to the YELLOWSPEED distributor in Florida. They are an european car service center. He has done the Yellowspeed coilover conversion on his personal CL500. He also experienced the bouncy ride everyone has complained about. I have asked him to check with Yellowspeed to be able to order a 20KG front and rear kit. My question is that with the S Class Lower Control Arms do you still use the slanted top mounts?
Thanks, Rick
What did you find out about the S class control arms and top mounts? Im at the same crossroads
08-21-2018, 10:43 AM
