# What This Thread is About
I originally wanted to install ZCP suspension on my E90 and there is a lot of conflicting information on the forum to OE ZCP suspension. In particular, the conflicting answers do not clearly define what fits and what is identical. I'm hoping creating this thread "ZCP Retrofit information thread" as a single source of all ZCP suspension information.
TL;DR
ZCP EDC Suspension will bolt up any E90/E92 physically, ZCP or not. Damping is most likely different but not unconfirmed. It is unknown if the differences, if there is any, would be noticed. There are multiple ZCP springs part numbers and dependent on options of the car. The part numbers are listed below in this post. Your experiences will vary but I believe any ZCP (E92 or E90) setup will work fine on any non-ZCP with EDC fine.
##Updated 07/20/2022
## S7MAA (ZCP) Competition Package
-10mm lowered height
-EDC with revised software parameters (Sport is dynamic now instead of fixed 75% stiffness)
-Style 359 Rims
## ZCP Part Numbers
This information was pulled from RealOEM website and cross-referenced across the two chassis.
Front EDC Struts Left
E90: 31312284013
E92: 31312283917
Front EDC Strut Right
E90: 31312284014
E92: 31312283918
Rear EDC Shocks
E90: 33522284315
E92: 33522284313
Installation Hardware
All the part numbers here are identical to the non-ZCP EDC components including spring pad.
##Springs
The springs appear to be a larger mystery due to having multiple options due to various configurations. I don't have consistent results on what they would be. I linked a thread below that was trying to do this years ago. If anyone else has more information or can post their tags, we can make a bigger database.
http://www.m3post.com/forums/showpos...07&postcount=7
Edit: 04/06/2018
The following data is from ETK 02.2018 Database from BMW parts catalogue. I checked spring tables for a 2011 E90 Sedan with 05/2010 production data and a 01/2011 E92 production date. ZCP implies EDC as EDC was part of ZCP in USA.
Spring Part Numbers Front / Rear
E90: 31332283563 / 33532283569 (6MT ,slicktop, ZCP, Nav or No Nav)
E90: 31332283564 / 33532283569 (6MT ,sunroof, ZCP, Nav or No Nav)
E90: 31332283564 / 33532283859 (6MT , every option ticked off)
E90: 31332283858 / 33532283569 (DCT ,slicktop, ZCP, Nav or No Nav)
E90: 31332283858 / 33532283859 (DCT ,sunroof, ZCP, Nav or No Nav)
E90: 31332283858 / 33532283859 (DCT ,every option ticked off)
E92: 31332283563 / 33532283569 (6MT, CF top, ZCP, Nav or No Nav)
E92: 31332283564 / 33532283569 (6MT, sunroof, ZCP, Nav or No Nav)
E92: 31332283564 / 33532283859 (6MT, every option ticked off)
E92: 31332283564 / 33532283569 (DCT, CF top, ZCP, Nav or No Nav)
E92: 31332283858 / 33532283859 (DCT ,sunroof, ZCP, Nav or No Nav)
E92: 31332283858 / 33532283859 (DCT, every option ticked off)
##Part number to X markings
Front
31332283563 : X6
31332283564 : X7 (not confirmed yet)
31332283858 : X8 Thanks
chutak
Rears
33532283569 : X5
33532283859 : X6
chutak
## Coding:
EDC Coding parameters
Code:
Code all items to the appropriate ZCP parameter to ALL fields
dx9005 = Non-ZCP E92
dx9230 = ZCP E92
dx9023 = Non-ZCP E90 with EDC
dx9030 = ZCP E90
Euro MDM (
optional) MK60 coding Parameters
Code:
US_VEHICLE Nicht_aktiv
MDYNAMIC_MODE_USA Nicht_aktiv
M3_UEBERSTUEUERN_MUE_0 wert_0x
M3_UEBERSTUEUERN_MUE_1_2 wert_0x
## Options for MDM
wert_01 = E90 US
wert_02 = E92 Euro
wert_03 = E92 US
wert_04 = E93 Euro
wert_05 = E93 US
wert_06 = E92 GTS
wert_07 = E90 GTS (CRT basically)
# Observations
I am assuming higher part number means heavier.
E9x: Navigation doesn't seem to have an effect on the spring choice unless paired with more options.
E9x:
SYT_Shadow has confirmed the spring perch is identical in height when compared to non-ZCP front strut. This confirms the springs are the sole reason for the 10mm drop in height.
E9x: ZCP EDC struts have shorter travel than non-ZCP EDC. - credit SYT_Shadow for measurement. <see below>
E90: Sunroof option changes the front spring to 564 from 563 on 6MT.
E90: DCT has the heaviest front spring, but varies on the rear depending on options.
E92: DCT with sunroof option goes from a 564 to 858 front spring.
E92: DCT has the heaviest springs as well. Only the slicktop stripper ZCP has 564 front spring.
So far I've found, what appears to be 3 ZCP front springs and 2 rear springs options in the US.
## Measurements from @SYT_Shadow and pictures from @DanMPower
Quote:
Originally Posted by SYT_Shadow
Ok so I've measured my OEM ZCP and OEM non-ZCP suspensions... Here goes
The ZCP comes from a pretty stripper E92. The nonZCP comes with a pretty stripper E90. (No navs, no sunroofs, cloth seats). Both suspensions have around 30k miles on them
In parenthesis you have spring codes and in the shafts, you have the shaft length until the 'shoulder' and then in parenthesis the shaft length to the top of the threaded section
ZCP nonZCP
F spring length 28.0 (X6) 29.0 (X3)
R spring length 30.2 (X5) 31.0 (X2)
F shaft length 13.3 (21.4) 14.2 (22.2)
R shaft length 13.7 (20.2) 14.2 (21.0)
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# FAQ
Will the strut/shocks bolt up to a non-ZCP with EDC?
Yes. An E92 set will fit an E92 and E90 set will fit an E90. Physical mounts between the E90 and E92 are identical but BMW has different part numbers for each chassis. The EDC module also needs to be coded to ZCP parameters in order to take advantage the new dampers.
Are there any differences besides the part number?
Most likely. Since BMW had so many variations of the springs, the dampener valving may be different for the sedan vs the coupe. Springs may have slightly different spring rates due variation in package weight combinations. No one has done any tested to confirm differences.
Will the E92 strut/shocks bolt up to a E90 or vice versa?
It would physically bolt up. At this point, I don't know that we would feel the difference between an E92 ZCP and E90 ZCP suspension on the same car and what the actual differences are on the E90 set vs the E92 Set.
# First hand Experience
Quote:
Originally Posted by 94jedi
So I guess I never updated/posted my results in this thread. I bought BOOF-M3 's ZCP suspension and replaced all the existing HW w/ new parts from getbmwparts. HW was like $400. The suspension from Mark was a killer deal at like $600 or 650 if I recall...labor (I just didn't have time) was pricey at about $8 or 900 through my indy shop and included a good alignment. Once installed, I had Alex at AlpineMSS code the suspension to work properly w/ the EDC, something many people don't bother to do. Let me tell you - maybe it was the newer shocks but even in comfort, the car felt tighter. Sport was like the old Sport + setting and the new Sport+ was really aggressive without riding like crap. It was perfect, I loved it. Performance increase was dramatic. Was it pricey, yes but I would do it over again in a heartbeat. If you're NOT looking to go too wild on the suspension, want a modest drop and want to keep that OEM feel, this is the way to go, imho. Maybe the dinan setup would be the next step, before a full C/O setup, or beyond.
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