Z4 e89 Adaptive M suspension question

[91cabrio]

Hey guys
I'm looking to do away with the M adaptive sport suspension on my 2010 Z4 sdrive35i with only 41k fronts leaked out and rears are also shot My question is I was looking to fit the Billstein B6 with the OEM springs will that setup work?

I tried ordering thru urotuning and they screwed everything up. I originally order B6 they sent me B8 rear, not realizing it I installed them. It was like 1/2 inch smaller then the oem shock, There seems to be no visual issue when you look at the stance on the rear. I called them to question why, when i found out they were b8. I was told after i received my front struts, the frontsents were B6, and to return the struts So I did I assumed i'm getting b8 fronts now.
They told me the sent the B8 rear because they didn't have the B6
My question at this point is I know B8 is for a lowered spring is the OEM
M adaptive sport suspension considered a sport spring a lowered oem spring?
PN 31336785082 coil spring for M adaptive sport suspension on my 2010
pn 31336784987 is for a non adaptive spring Can I use the B8s all the way around apparently UROTUNING cant answer the question So I hoping some of you guys can


THX

[B21]

B8s with new MSport springs..supplex provide v high quality MSport springs

[91cabrio]

trying to see if the B8 works with the OEM springs I kmow i can get aftermarket, OEM springs has only 41k so trying to see if the B8 is the right one for the oem spring witch i assume it may be, i have oem 19in wheels with M adaptive suspension

[B21]

You need springs from a MSport car non adaptive

[91cabrio]

This is what i was looking for , the adaptive suspension has a 10mm lowered OEM spring

What is the difference between the M Sport suspension and the adaptive M suspension?
The M Sport suspension (SA 704) is notable for more sporty suspension settings with tighter damper settings. It also features a moderately higher spring constant and harder anti-roll bars. Combined together, they result in an even more direct suspension design, which enables a distinctly sporty driving style.

The adaptive M suspension (SA 2VF), which has been lowered by ten millimetres, combines excellent handling with maximum driving safety and enables impressive control of the vehicle right up to the limits. By selecting the three available modes "COMFORT", "SPORT" and "SPORT+", you set the electronically controlled shock absorbers to the respective basic character. The system can control all dampers individually and independently. Sensors determine the current movement of the body, the road condition and the driver's choice, such as the steering speed in a chicane. The optimum damping forces are calculated in just a few milliseconds and permanently adjusted continuously.


https://faq.bmw.com.au/s/article/Dri...language=en_AU

[B21]

Stock and MSport use mechanically controlled dampers …MSport uses a different spring and usually a different damper to drop ride height by 10-15mm..

Adaptive dampers use an electronically controlled variable rate damper allied to its own different spring set..the adaptive damper / spring set is broadly similar in ride height to MSport set up..

Sadly the marketing bullshit was never fulfilled and with age the adaptive dampers deteriorate mark markedly than the conventional dampers ..