C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

W203/CL203 Suspension (Shocks/Springs/Sway Bars) Discussion/Upgrade Thread

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Old 07-15-2009, 03:56 AM
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cl203 Sports Coupe
Sounds good, as long as a c230 has it, I think i'm safe heh
Old 07-15-2009, 05:36 AM
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05 C55 & 06 C230 SS
Originally Posted by XsuperbeeX
Coz you need some sway bar and strut bar to make it more stiff...

the sway and strut bars are already down on my list and ready 2 buy but i just need the spring and strut combo ...man so hard with a mercedes but yea ima have to make a call to kw to seee if they got anything for me
Old 07-15-2009, 06:22 AM
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The $64,000 question is: Are you tracking it, or are you racing (you're the same guy who asked about a 'racing suspension', no?)?

For the track, a good set of springs, and some Koni sports will greatly improve the performance/enjoyment, yet still leave the car drivable on the street.

If you're going racing, you can forget driving the car on the street, as it'll rattle your fillings out of your teeth.

The spring rates for and shock valving for a car used in a true racing series (like the SpeedWorld Challenge, etc) are much higher than any streetable shocks/springs.
Old 07-15-2009, 12:00 PM
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05 C55 & 06 C230 SS
Originally Posted by dmatre
The $64,000 question is: Are you tracking it, or are you racing (you're the same guy who asked about a 'racing suspension', no?)?

For the track, a good set of springs, and some Koni sports will greatly improve the performance/enjoyment, yet still leave the car drivable on the street.

If you're going racing, you can forget driving the car on the street, as it'll rattle your fillings out of your teeth.

The spring rates for and shock valving for a car used in a true racing series (like the SpeedWorld Challenge, etc) are much higher than any streetable shocks/springs.

im kinda turnin it into a track car lololevery body here thinks its a waist of money but idc so yea do u know ogf any track based c.o.'s or setups for the track that will fit the mercedes...i called kw yest and they said they had but its was 5k and thats 2 mcuh but thats my last resort if i cant find anything else
Old 07-15-2009, 01:21 PM
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Search for user: Nukblazi in the W203 thread. He had KW V2s, and did a lot of tracking in his car.
Old 07-15-2009, 01:37 PM
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2006 C350 Sport 6MT
KW Variant 2 and call it a deal.

Or Tein SS
Old 07-15-2009, 04:45 PM
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the problem with street coil overs is that they weren't designed for constant beating on the track but rather more spirited driving.

I wouldn't suggest getting tein ss or kw's if your gonna be tracking it all the time. eventually you will blow out the shocks.

Like i said on the other thread, get the bilsteins or race valved koni's. There more up to par for consistent track use. When i say track..i'm assuming autox not drag.
Old 07-15-2009, 11:01 PM
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05 C55 & 06 C230 SS
Originally Posted by TemjinX2
the problem with street coil overs is that they weren't designed for constant beating on the track but rather more spirited driving.

I wouldn't suggest getting tein ss or kw's if your gonna be tracking it all the time. eventually you will blow out the shocks.

Like i said on the other thread, get the bilsteins or race valved koni's. There more up to par for consistent track use. When i say track..i'm assuming autox not drag.

yea im talking about auto-x and when u say "race valved koni's" are u talking about these...

http://www.tirerack.com/suspension/s...ORT&perfCode=A


and guys would any 1 happen to know if kw v2 springs are progressive or linear
Old 07-15-2009, 11:10 PM
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03 g35 coupe...........02 c32 Sold
Originally Posted by jayton41
yea im talking about auto-x and when u say "race valved koni's" are u talking about these...

http://www.tirerack.com/suspension/s...ORT&perfCode=A


and guys would any 1 happen to know if kw v2 springs are progressive or linear
no, you can send back the yellows to koni and they will re-valve them to be more aggressively similar to the bilsteins.
Old 07-15-2009, 11:46 PM
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05 C55 & 06 C230 SS
Originally Posted by TemjinX2
no, you can send back the yellows to koni and they will re-valve them to be more aggressively similar to the bilsteins.

so ur saying if i get the bilsteins i wont have to get them re-valved
Old 07-16-2009, 12:57 AM
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03 g35 coupe...........02 c32 Sold
Originally Posted by jayton41
so ur saying if i get the bilsteins i wont have to get them re-valved
probably not. i'm not saying the yellows will blow or anything. There other people who track the yellows and there fine. Most people recommend you do re-valve them to more of a race spec versus a street spec. its relatively cheap to re-valve them. either way, you can't go wrong with bilsteins or the koni's.
Old 07-17-2009, 11:08 AM
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05 C55 & 06 C230 SS
Originally Posted by TemjinX2
probably not. i'm not saying the yellows will blow or anything. There other people who track the yellows and there fine. Most people recommend you do re-valve them to more of a race spec versus a street spec. its relatively cheap to re-valve them. either way, you can't go wrong with bilsteins or the koni's.

sounds good lol thanx for the info but exactly how much does it cost and do u know of any one who has had this done to their yellows ?????
Old 07-17-2009, 11:32 AM
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I drive a Toyota Hybrid...
just get a track Miata and call it a day...

that thing can really turn
Old 07-17-2009, 10:30 PM
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C320 coupe
Originally Posted by kirax2
just get a track Miata and call it a day...

that thing can really turn
thats what we have said from the beginning... he choose the wrong car... and he doesnt want listen
Old 07-28-2009, 10:33 PM
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W203 Renntech Suspension sale

saw these off ebay and im abit unsure about them till i get your opinion.. its either these or koni yellows.. almost same price..

http://cgi.ebay.com/ebaymotors/RENNT...ayphotohosting
Old 07-28-2009, 11:19 PM
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2013 ML350
Well, Sachs-Boge are the OEM supplier of shock/struts for benz and bmw. Good stuff.

These appear to be from their performance line-which is a bit better/stiffer than the OEM units. They are usually red in color. Check out www.sachsracing.com or www.sachsna.com for a bit more info.

How these are Renntech, i am not sure...Maybe Renntech sources Sachs to build them to their specs??
Old 07-29-2009, 12:40 AM
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hmmm... ill check them out now.. not quite sure i heard of renntech suspension for the w203 ever..
Old 07-29-2009, 06:01 PM
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2003 c230k coupe
W203 spring install (front)/impact wrench

Using a break bar to remove the two 19mm bolt connecting the front strut to the hub, I realized that it was impossible. The shop had previously over-tightened the bolt, and the placement of the bolt is in an awkward angle for me to exert full strength. I'm considering buying a used impact wrench on ebay and I was wondering if anyone had any suggestions of which to buy. The Dewalt 1/2" seems like a good one..

Since the bolt is in a hard to reach place, would one need a smaller impact wrench to fit, or simply an extension will do? (i read about something called right-angle extension). thanks for any input.
Old 07-30-2009, 01:24 AM
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Originally Posted by mbcollector
hmmm... ill check them out now.. not quite sure i heard of renntech suspension for the w203 ever..
I am in the market for these as well, please let me know if you find out any information about this RENNTECH Sachs Suspension kit. Thanks!

we should do a small group buy if that's possible :p
Old 07-30-2009, 04:04 AM
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white and whiter
pretty good find.
Old 07-30-2009, 09:30 AM
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Nowhere ...Fast
partsgeek.com sells Sachs suspensions...128 per rear shock and 169 for strut...cheaper than 600...personally i went with Bilsteins
Old 07-30-2009, 07:17 PM
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2013 C300 4Matic Sport
I just installed the Eibach Pro System Plus (shocks, springs, and sways) and the struts are made by Sachs, and look/fit exactly like OEM. Highly recommended!
Old 07-30-2009, 07:43 PM
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05 C55 & 06 C230 SS
Originally Posted by XsuperbeeX
thats what we have said from the beginning... he choose the wrong car... and he doesnt want listen
i chose the wrong car ???? wtf buddy if any thing u bought the wrong car getting that little *****y *** coupe so dont come over here acting like u know **** ..worry about ur self
Old 07-30-2009, 08:05 PM
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...a panty dropper...
Resurrecting a 2 week old post to start some beef. Just let it be. If anything let your car talk for you with how it looks/performs!!
Old 07-30-2009, 08:59 PM
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C320 coupe
+1

Jayton:I can take you on any day on your c230 you idiot... no offence to the other c230 owner... dont take to me to use your DADDY'S c55... =.= + I DIDNT BUY THIS COUPE... I would get an evo... even so the coupe has grown more than before...

Last edited by XsuperbeeX; 07-30-2009 at 09:09 PM.


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