kpewpew wroteI posted in another thread about ZCP suspension. The Spring table in BMW ETK Parts catalog shows which part number you need.The thing that confuses me is how we can order them online. If I look up springs on ESCtuning, there's no options for which spring marking such as X3, X5.
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03-09-2023LAST POST
derbo wroteThanks! I found your post here... https://www.m3post.com/forums/showthread.php?t=1481852I posted in another thread about ZCP suspension. The Spring table in BMW ETK Parts catalog shows which part number you need.
Excellent material I'm hoping to build on.
I am working on compiling the spring markings for the E9x M3. When I find data, I put it below. Eventually the puzzle pieces will reveal all the spring marks for different specs. I did this for springs on the E36M3 back in the M3forum days but that disappeared as you probably know. If anyone can offer more data, I'd appreciate it. Right now, I'm finding lots of info asking Ebayers as they list springs. Thanks!
Notes:
Y springs are 1mm thicker than X.
X series springs may be for lighter M3's.
Y series springs may be for heavier M3's.
C series springs may be for the 328i.
D series springs may be for 335i.
ZCP = Competition package
6spd tranny: 150lbs
DCT tranny: 195lbs
CF roof: Lightest
Steel roof: +11lbs
Steel + Moonroof: +44lbs
Power seats: +22lbs (+11lbs each)
E90 is +22lbs over E92
E92 M3 Coupe:
Front X7 Rear X4 (2011 DCT ZCP iDrive-Nav PowerSeats CarbonRoof)
Front X3 Rear X5 (2011 6spd ZCP)
Front X2 (2011 DCT RightHandDrive)
Front X7 (2008 DCT CarbonRoof)
Rear X2 (ebay confirmed reference)
Rear X2 (gtautospares - ebay confirmed reference)
Front X7 Rear X5 (2013 DCT ZCP acardone88 - ebay ref wbskg9c53dj594138)
E90 M3 Sedan:
Front Y4 Rear Y1
Front X1 Rear X2 (2008 6spd)
Rear X5 (2008)
Front X2 Rear X3 (2008 6spd sunroof)
Rear X5 (2011 ZCP 6spd, steel roof)
E93 M3 Convertible:
Front Y1 (2008)
Front Y2 (DCT)
E82 1M Coupe:
Y8 Front Y8 Rear (USA 2011) (F: wire dia 12.6mm - R: wire dia 14.35mm)
from derbo:
Part Number to X/Y markings
Front
31332283563 : X6
31332283564 : X7 (not confirmed yet)
31332283858 : X8 thanks chutak
Rears
33532283569 : X5
33532283859 : X6 thanks chutak
Notes:
Y springs are 1mm thicker than X.
X series springs may be for lighter M3's.
Y series springs may be for heavier M3's.
C series springs may be for the 328i.
D series springs may be for 335i.
ZCP = Competition package
6spd tranny: 150lbs
DCT tranny: 195lbs
CF roof: Lightest
Steel roof: +11lbs
Steel + Moonroof: +44lbs
Power seats: +22lbs (+11lbs each)
E90 is +22lbs over E92
E92 M3 Coupe:
Front X7 Rear X4 (2011 DCT ZCP iDrive-Nav PowerSeats CarbonRoof)
Front X3 Rear X5 (2011 6spd ZCP)
Front X2 (2011 DCT RightHandDrive)
Front X7 (2008 DCT CarbonRoof)
Rear X2 (ebay confirmed reference)
Rear X2 (gtautospares - ebay confirmed reference)
Front X7 Rear X5 (2013 DCT ZCP acardone88 - ebay ref wbskg9c53dj594138)
E90 M3 Sedan:
Front Y4 Rear Y1
Front X1 Rear X2 (2008 6spd)
Rear X5 (2008)
Front X2 Rear X3 (2008 6spd sunroof)
Rear X5 (2011 ZCP 6spd, steel roof)
E93 M3 Convertible:
Front Y1 (2008)
Front Y2 (DCT)
E82 1M Coupe:
Y8 Front Y8 Rear (USA 2011) (F: wire dia 12.6mm - R: wire dia 14.35mm)
from derbo:
Part Number to X/Y markings
Front
31332283563 : X6
31332283564 : X7 (not confirmed yet)
31332283858 : X8 thanks chutak
Rears
33532283569 : X5
33532283859 : X6 thanks chutak
