Choosing coil over for E63
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Super Member
Joined: Sep 2011
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From: SoCal
2014 E63s
Choosing coil over for E63
I'm considering converting to coil over as I'm not completely satisfied with the ride of my car since lowering with start. Seems a but loose on the freeway. After looking around I found many different options for the cool over lots ranging from $900 up to $2500. Would I have to assume the $2500 are better or are there some out there just as good for less $$?? I believe the KW are the most expensive kits. Also read a thread about BC racing with positive feedback but can't base my decision based on one thread. Can anyone shed some light on this?
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Joined: Feb 2010
Posts: 125
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From: Los Angeles
2005 E55, 2002 GT2
There are several people that have done the conversion using other types of coilovers other than KW. I, myself, went with KW only because of my past experience with them on all the cars listed in my sig. The KW's for the W211 E class are are specifically made FOR the W211 E class (loads are considered when they chose the valves, etc) whereas the others are generic that happen to "fit". That "generic-ness" worried me as well, however it seems that they've been working for those that haven't gone KW (or perhaps they've decided not to post....)
KW also provides a warranty in the event of a leak or failure which is a nicety to have.
In short, I'm happy with the conversion. Happy with the KW's, and happy that I don't have to deal with airmatic ever again. Good riddance to that god awful system.
FYI, just as an aside, if you do happen to go with the conversion, you'll need to have access to someone with online SCN coding to get rid of the "malfunction" notification on your instrument cluster. The E55 is capable of having the notification turned off in the instrument cluster via DAS, but not the E63 (new electronics--something that I learned this past week)
KW also provides a warranty in the event of a leak or failure which is a nicety to have.
In short, I'm happy with the conversion. Happy with the KW's, and happy that I don't have to deal with airmatic ever again. Good riddance to that god awful system.
FYI, just as an aside, if you do happen to go with the conversion, you'll need to have access to someone with online SCN coding to get rid of the "malfunction" notification on your instrument cluster. The E55 is capable of having the notification turned off in the instrument cluster via DAS, but not the E63 (new electronics--something that I learned this past week)
Last edited by grimm; Jan 16, 2014 at 01:50 AM.
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Joined: Jul 2013
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05 e55 amg
I have d2 coilovers on my e55 I like it a lot. But I also rode in a e55 with kw coilovers the ride is even better I'm going to kw swap from d2 coilovers and I also believe fabtech performance sells the whole kw kit all the parts needed for the conversion check them out. My opinion coilovers are totally worth it. I will never go back to air suspension.
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2009 W211 E350 AMG Sport PKG
if you're not going to be tracking your car or really beating on it, then i don't see the point in paying up for $2500 kw v3's. here are some other options:
- CKS w/ SWIFT Springs (Owner of CKS had it on his own E55 back then)
- Lower level KW (v1, v2 if available)
- BC Racing
- H&R
- Bilstein
- Eibach
Whichever option you choose, I'd recommend getting custom spring rates.
- CKS w/ SWIFT Springs (Owner of CKS had it on his own E55 back then)
- Lower level KW (v1, v2 if available)
- BC Racing
- H&R
- Bilstein
- Eibach
Whichever option you choose, I'd recommend getting custom spring rates.
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Joined: Jul 2003
Posts: 11,664
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From: SoCal
W221
if you're not going to be tracking your car or really beating on it, then i don't see the point in paying up for $2500 kw v3's. here are some other options:
- CKS w/ SWIFT Springs (Owner of CKS had it on his own E55 back then)
- Lower level KW (v1, v2 if available)
- BC Racing
- H&R
- Bilstein
- Eibach
Whichever option you choose, I'd recommend getting custom spring rates.
- CKS w/ SWIFT Springs (Owner of CKS had it on his own E55 back then)
- Lower level KW (v1, v2 if available)
- BC Racing
- H&R
- Bilstein
- Eibach
Whichever option you choose, I'd recommend getting custom spring rates.
I went with KW's because at the time no one else had done the conversion and you can't go wrong with KW. They are a great company with great hardware. In the end, I would say save up for the KW's and do it right. I'm sure there are many happy people who didn't go with the KW's but I have yet to run into one person who doesn't like the KW's.
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Thread Starter
Super Member
Joined: Sep 2011
Posts: 687
Likes: 10
From: SoCal
2014 E63s
if you're not going to be tracking your car or really beating on it, then i don't see the point in paying up for $2500 kw v3's. here are some other options:
- CKS w/ SWIFT Springs (Owner of CKS had it on his own E55 back then)
- Lower level KW (v1, v2 if available)
- BC Racing
- H&R
- Bilstein
- Eibach
Whichever option you choose, I'd recommend getting custom spring rates.
- CKS w/ SWIFT Springs (Owner of CKS had it on his own E55 back then)
- Lower level KW (v1, v2 if available)
- BC Racing
- H&R
- Bilstein
- Eibach
Whichever option you choose, I'd recommend getting custom spring rates.
Super Member
Joined: Dec 2011
Posts: 872
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2009 W211 E350 AMG Sport PKG
Yeah don't get me wrong, KW is probably one of the best, but if it's a daily driver you'll more than likely be satisfied with V2 or anything comparable.
Higher spring rates, stiffer springs. You have a big v8 and your car is heavier so you're probably going to want something like 10k-12k spring rates with full adjustable dampening.
Higher spring rates, stiffer springs. You have a big v8 and your car is heavier so you're probably going to want something like 10k-12k spring rates with full adjustable dampening.
Thread Starter
Super Member
Joined: Sep 2011
Posts: 687
Likes: 10
From: SoCal
2014 E63s
Yeah don't get me wrong, KW is probably one of the best, but if it's a daily driver you'll more than likely be satisfied with V2 or anything comparable.
Higher spring rates, stiffer springs. You have a big v8 and your car is heavier so you're probably going to want something like 10k-12k spring rates with full adjustable dampening.
Higher spring rates, stiffer springs. You have a big v8 and your car is heavier so you're probably going to want something like 10k-12k spring rates with full adjustable dampening.
http://www.ebay.com/itm/2002-2009-Mercedes-W211-E-Class-Airmatic-Sedan-BC-Racing-BR-Coilovers-Set-Coils-/190888855075?pt=Motors_Car_Truck_Parts_Accessories&hash=item2c71dcc623&vxp=mtr
Last edited by vcci; Jan 18, 2014 at 01:04 AM.
Thread Starter
Super Member
Joined: Sep 2011
Posts: 687
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From: SoCal
2014 E63s
i also notice in this KW kit the spring rate is front "progressive" and rear is 685lbs how does that translate in to the earlier mentioned 14k and 15k?
http://www.ebay.com/itm/KW-V2-Damper-Coilover-Suspension-Benz-W211-E320-E350-E500-E550-E55-E63-AMG-03-09-/331107427968?pt=Motors_Car_Truck_Parts_Accessories&hash=item4d178a6680&vxp=mtr
http://www.ebay.com/itm/KW-V2-Damper-Coilover-Suspension-Benz-W211-E320-E350-E500-E550-E55-E63-AMG-03-09-/331107427968?pt=Motors_Car_Truck_Parts_Accessories&hash=item4d178a6680&vxp=mtr
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Joined: Mar 2011
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From: Orange County, CA.
one car at a time
If you go coilover route and are unhappy with the stock setup, don't skimp - you will still be unhappy. The sub 1k - 1.5k kits are mostly junk compared to a KW, Ohlin, or Bilsteins. I know Bilstein will do custom valving for you too based upon your application. I'd highly recommend calling the 3 companies I mentioned and discuss your goals and get their thoughts on spring rates and valving. Good luck
Edit : Regarding 14k springs in a road car...I would not recommend this route. 14 kg / mm = 787 lbs / in (way too high) and I would guess you would want to be more in the range of 7 - 9 k or 393 to 506 lbs / in, but the gurus at KW / Bilstein / Ohlin could tell you...
Edit : Regarding 14k springs in a road car...I would not recommend this route. 14 kg / mm = 787 lbs / in (way too high) and I would guess you would want to be more in the range of 7 - 9 k or 393 to 506 lbs / in, but the gurus at KW / Bilstein / Ohlin could tell you...
Last edited by cij911; Jan 18, 2014 at 08:41 AM.
