lowering springs
I am on 19's with Super Sports, I don't find the ride bumpy however every small bump or hole makes a loud clunking sound like the spring windings are compressing onto each other. It almost sounds like something is loose.
Ok, that's only 1 of 6 that unconditionally "loved" these H&R Super Sport springs.
How about some very helpful information from the "H&R SS six" please? This is how to get to the root cause !!
1) what size wheels ?
2) did you change shocks from oem ?
3) did you change shocks, if yes was it before, during, or after spring install ?
4) how many miles on odo when SS springs installed ?
5) did you change thickness of front or rear spring top cushions ?
6) what installed thicknesses of F&R cushions ?
7) dealer installed or who else ?
8) did you modify/cut the rubber bump-stops on the shocks ( hidden by front bellows and rear outer dust shield ) ?
9) at final assembly, was the car put in an "as driven" condition when the rear lower shock mounts were torqued ?
Rear Shock Assembly
Please every SS spring owner answer as many of these questions as you can ... after you enjoy the 4th of course
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Last edited by kevink2; Jul 4, 2012 at 03:42 PM.
How about some very helpful information from the "H&R SS six" please? This is how to get to the root cause !!
1) what size wheels ? 18" OEM AMG
2) did you change shocks from oem ? OEM SHOCKS
3) did you change shocks, if yes was it before, during, or after spring install ? NO
4) how many miles on odo when SS springs installed ? 29,800
5) did you change thickness of front or rear spring top cushions ? CHANGED TO 5MM
6) what installed thicknesses of F&R cushions ? Front: STOCK Rear: 5MM
7) dealer installed or who else ? CERTIFIED VOLVO MASTER TECH (FRIEND)
8) did you modify/cut the rubber bump-stops on the shocks ( hidden by front bellows and rear outer dust shield ) ? NO MODIFICATION TO BUMP STOPS
9) at final assembly, was the car put in an "as driven" condition when the rear lower shock mounts were torqued ? NO
Rear Shock Assembly
Please every SS spring owner answer as many of these questions as you can ... after you enjoy the 4th of course
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I am pissed I wasted money on them since I believed earlier posters that ride quality wasn't that bad.... And I don't think that changing the pads back to 13mm will be enough to correct it...
So I am planning on selling mine ASAP as soon as I figure out what coil overs to get...

The several closely spaced coils on each spring represent a soft initial rate, not much higher than stock. When the load (cornering, stopping @ front, etc) is high enough to have the soft section go into coil-bind (no space between coils), then just the widely spaced coils are active and represent a stiff rate. There is a transition between the two spring rates.
Very few springs are truely progressive.
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And how about helping solve some ride issues other SS owners had, by answering the 9 questions I listed in post#27. It does not have to be the nice way rb32lb did it .... could just list answers. There is no bad answer.
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And how about helping solve some ride issues other SS owners had, by answering the 9 questions I listed in post#27. It does not have to be the nice way rb32lb did it .... could just list answers. There is no bad answer.
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If you don't mind, please answer the 9 questions listed above. Also a few just for you :
On your custom springs, did you go linear, were the oem's linear?
When you installed the SS's, did you get most of the full drop right away?
With the SS's, do you think the car sat without coil binding the closely spaced coils?
With dual rate springs like these, you are supposed to ride w/o coil bind in the closely spaced coils, for a slightly stiffer ride with all coils "active", vs oem rate.
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Would you perform the 2x4 roll-on test I suggested before?
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Last edited by kevink2; Jul 7, 2012 at 11:53 AM.
The Best of Mercedes & AMG
So I'm hoping that we have members here that have experience either on their Benz or any other vehicle that it may have been installed on. Please chime in and let me know how you felt the ride was. I'm looking for as close as possible to stock ride comfort but with lowered performance. Obviously I know that there is a comfort trade off with lowering ones car but I think with today's technology we should be able to find a good medium. BTW, my fiancee's C200 is the Lux/Avantgarde model.
I think the problem is most likely the oem shock is too soft for this spring when it is compressed into the stiff zone. There the spring is loosing travel and gets a very high rate (with all closely spaced coils now touching each other --- no gaps.
I'l call H&R again Monday.
Last edited by kevink2; Jul 7, 2012 at 12:39 PM.
I think the problem is most likely the oem shock is too soft for this spring when it is compressed into the stiff zone. There the spring is loosing travel and gets a very high rate (with all closely spaced coils now touching each other --- no gaps.
I'l call H&R again Monday.
such awesome attention to detail in your helpful posts!
2) did you change shocks from oem? No
3) did you change shocks, if yes was it before, during, or after spring install? N/A
4) how many miles on odo when SS springs installed? around 81,000
5) did you change thickness of front or rear spring top cushions? No
6) what installed thicknesses of F&R cushions? N/A, kept stock pads
7) dealer installed or who else? Self installed with a friend of mine
8) did you modify/cut the rubber bump-stops on the shocks ( hidden by front bellows and rear outer dust shield )? No
9) at final assembly, was the car put in an "as driven" condition when the rear lower shock mounts were torqued ? N/A
I did complain that the ride was a bit bouncy but it really isnt. It's just the ride is a little bit more rough than the oem springs and it was just me getting used to it once again. I havent had a lowered car since i had my w202 back in 2007, so it's been awhile. I actually love it now although it is still settling as i've only had it on for about a week...
From my experience on installing it, it seems like it could be an installation issue for the rest of the other members. My friend and I actually spent more time trying to get the springs to sit in place properly and it was definitely a pain in the **** as we kept compressing and decompressing the spring until we got it right. It could be that these shops did not pay close attention to how the springs were seated into the pads. Otherwise, it could be the bump stop issue, logically it makes sense especially to those that changed their rear pads to 5mm.
2) did you change shocks from oem ? No
3) did you change shocks, if yes was it before, during, or after spring install ?
4) how many miles on odo when SS springs installed ? 30k
5) did you change thickness of front or rear spring top cushions ? No
6) what installed thicknesses of F&R cushions ?
7) dealer installed or who else ? Self
8) did you modify/cut the rubber bump-stops on the shocks ( hidden by front bellows and rear outer dust shield ) ? No
9) at final assembly, was the car put in an "as driven" condition when the rear lower shock mounts were torqued ? No, this does not make sense as shocks have a lower bushing that rotates.
I have been modifying cars for 25+ years and there is always a trade off, usually negatively. Stock is always best, when you change something expect negative consequences. You won't beat factory engineers and millions of dollars of research. That being said, I do not find the car bouncy as some have reported. Harsh, yes. However that was expected. What I am disappointed with is the hard "clunk" sound when I hit bumps. Keep in mind I live in pot hole heaven and this is a combination of very bad roads, 19's and the SS. It's so bad I recently inspected the whole suspension as I was convinced something was loose. I now believe the sound is the softer rate center coils collapsing on each other. You will notice H&R wrapped that section with a plastic liner. Do I like these springs, hell no. Do I like the look of the car lowered, hell yes. Coil overs next I guess, wonder about air bags?
2) did you change shocks from oem ? No
3) did you change shocks, if yes was it before, during, or after spring install ?
4) how many miles on odo when SS springs installed ? 30k
5) did you change thickness of front or rear spring top cushions ? No
6) what installed thicknesses of F&R cushions ?
7) dealer installed or who else ? Self
8) did you modify/cut the rubber bump-stops on the shocks ( hidden by front bellows and rear outer dust shield ) ? No
9) at final assembly, was the car put in an "as driven" condition when the rear lower shock mounts were torqued ? No, this does not make sense as shocks have a lower bushing that rotates.
I have been modifying cars for 25+ years and there is always a trade off, usually negatively. Stock is always best, when you change something expect negative consequences. You won't beat factory engineers and millions of dollars of research. That being said, I do not find the car bouncy as some have reported. Harsh, yes. However that was expected. What I am disappointed with is the hard "clunk" sound when I hit bumps. Keep in mind I live in pot hole heaven and this is a combination of very bad roads, 19's and the SS. It's so bad I recently inspected the whole suspension as I was convinced something was loose. I now believe the sound is the softer rate center coils collapsing on each other. You will notice H&R wrapped that section with a plastic liner. Do I like these springs, hell no. Do I like the look of the car lowered, hell yes. Coil overs next I guess, wonder about air bags?
Looks like changing back to stock 13mm pads may be what i need to do...
I know the hard bump you were talking about...
Do you think Bilstein B8s (shocks made for lowering springs with shorter travel) would alleviate the springs collapsing on eachother?
From my experience on installing it, it seems like it could be an installation issue for the rest of the other members. My friend and I actually spent more time trying to get the springs to sit in place properly and it was definitely a pain in the **** as we kept compressing and decompressing the spring until we got it right. It could be that these shops did not pay close attention to how the springs were seated into the pads. Otherwise, it could be the bump stop issue, logically it makes sense especially to those that changed their rear pads to 5mm.
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ref: K_spring = (Gd^4)/(8ND^3) for linear spring, d=wire dia, D=coil dia, N=number of active coils
When you inspected the springs, did you get a feel for the % of coils that were closely spaced, front vs rear? And do you think the car rides with the close coils already collapsed?
Thanks for the great input.
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Last edited by kevink2; Jul 9, 2012 at 11:59 AM.
2) did you change shocks from oem? Bilstein B8 on order, currently on OEM LUX shocks
3) did you change shocks, if yes was it before, during, or after spring install? N/A
4) how many miles on odo when SS springs installed? about 20000km +/-
5) did you change thickness of front or rear spring top cushions? No
6) what installed thicknesses of F&R cushions? N/A
7) dealer installed or who else? Indy mech shop using provided install guide from the forum
8) did you modify/cut the rubber bump-stops on the shocks ( hidden by front bellows and rear outer dust shield )? Never any indication that it needed this.
9) at final assembly, was the car put in an "as driven" condition when the rear lower shock mounts were torqued? Tq'd as spec
Last edited by Knightmare69; Jul 8, 2012 at 10:47 PM.
I woulndt want to go eichbach or regular sport because I have seen pictures and the drop is not even noticeable from a stock sport (not luxury) w204.... which boggles my mind how it even handles better or what the effect of eichbach or ss is supposed to be...
i think coils will still be harsh, but they will be less bouncy....
I woulndt want to go eichbach or regular sport because I have seen pictures and the drop is not even noticeable from a stock sport (not luxury) w204.... which boggles my mind how it even handles better or what the effect of eichbach or ss is supposed to be...
i think coils will still be harsh, but they will be less bouncy....
Also, consider, as a DD, just how low you really need for the car to perform to your standards or is really more for looks? There's a fine line on a DD and many of us cross it because we think lower is better and to a certain extent it is, but like I said, on a DD, will you really use that lowness to it's full potential?
Alot of ppl on other boards have stated, sway bars are actually more effective in keeping your cat planted on the turns. On straight-ways, even a mild drop will be more than sufficient for legal speed.
Most of the people that I know that wanted more performance on various cars from siffer springs, when with linear (H-Tech, Carlsson) or mild progressive ( H&R Sport, Eibach Pro-kit). This gave about a 1" drop or so.
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Many people with various cars have installed coilover kits (typ. adjustable height and damping, with linear springs, sold as a matched set), and they reported back that the ride was better than stock. Better meaning it gave them the stiffer ride needed for cornering and braking, but delivered in a strait forward way ... not dual rate springs, bump stop worries, etc.
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Last edited by kevink2; Jul 9, 2012 at 04:41 PM.
Also, consider, as a DD, just how low you really need for the car to perform to your standards or is really more for looks? There's a fine line on a DD and many of us cross it because we think lower is better and to a certain extent it is, but like I said, on a DD, will you really use that lowness to it's full potential?
Alot of ppl on other boards have stated, sway bars are actually more effective in keeping your cat planted on the turns. On straight-ways, even a mild drop will be more than sufficient for legal speed.
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Sport and Eichbach dont even drop the car noticably, so IMO what is the point since I will doubt they perform much better than stock which are already shorter springs than luxury....



