ZCP MDM...?

[MRSSIIM3]

so i did a search and all i could find were zcp v. non zcp threads

im wondering how much different MDM is on a car with competition package versus on a car without ZCP

from peoples experiences, does MDM allow a lot more wheelspin on a ZCP M3 vs. non zcp?


side note:
a friend of mine has an 09 m3 without zcp and was telling me that its impossible to go sideways in MDM on his...wondering how this compares to an m3 with zcp's tweaked mdm

thanks!!

[Mavrick151]

Its not a big difference. It allows for a bit more slip angle before the dsc intervenes.

[ES_TRADER]

what the hell is MDM? i have zcp and no clue what this is or does...all i know is that it shows up on the dash when u push the "M" button....i dont feel any difference in the car tho...is it because my car startup default is Sport Plus on EDC? ive never driven in comfort mode...is that what MDM is? just another way of saying Sport Plus on EDC?

[MRSSIIM3]

MDM, aka M dynamic mode, is a traction control setting, kinda like DSC on non M cars

only way to activate it is via the M button thats why you see it

it allows for some wheel slippage when accelerating or turning, etc. you wont see a difference in the car unless youre taking turns at high speed or accelerating on a weird surface

unlike DSC in non M cars, which is mainly used to get more wheelspin when youre stuck in the snow or something, MDM is performance oriented and allows you to have 'fun' with the car

[persian54]

well if you want to go sideways, why don't you just turn traction off?

[MRSSIIM3]

Originally Posted by persian54

well if you want to go sideways, why don't you just turn traction off?

i dont trust myself with traction off hahaha

[jbtco]

It is nearer to switching DSC off but still tries to provide a safety net (electronic throttle and brake modulation) if you overcook it .

[lve2xlr8]

Originally Posted by persian54

well if you want to go sideways, why don't you just turn traction off?

Because mdm still let's you go slightly sideways but creates a safety net if things get too wild.

IMO no one should turn dsc completely off without proper training/empty roads or a track. Not cool to endanger other people's lives thinking you're a "street drift king"

[James T. Kirk]

Watch this for more on MDM aka: The Goldilocks Setting...

[///My5UV]

Is it true that the limits are (in order)...

Normal
MDM
DTC
DSC off
Pull the ABS fuse

Too many modes IMO... on my E39 I just turn it all off unless I'm on the highway or it's raining... but I'm a real live licensed racecar driver... YMMV :-)

[James T. Kirk]

^ I agree with you. As much as I love my E90, and even though I have all the settings finally just where I want them... having all those options is a bit of a headache. That's one of the reasons why I like the 1M concept so much. The 1M isn't for me, but I see the appeal.

[persian54]

Originally Posted by lve2xlr8

IMO no one should turn dsc completely off without proper training/empty roads or a track. Not cool to endanger other people's lives thinking you're a "street drift king"

Well I was under the impression that if you're going to be going sideways, you've gotten proper training and you'd be doing it on a (rather) empty track....

[OC3]

Originally Posted by richpuer

what the hell is MDM? i have zcp and no clue what this is or does...all i know is that it shows up on the dash when u push the "M" button....i dont feel any difference in the car tho...is it because my car startup default is Sport Plus on EDC? ive never driven in comfort mode...is that what MDM is? just another way of saying Sport Plus on EDC?

MDM is (somewhere) between DSC on & DSC off.

[kaykay]

MDM has NOTHING to do with ZCP or non-ZCP

MDM is basically an "almost off" traction control. Think about it like a 1% version of DSC. It will kick only in "extreme situations."

Everything is in the manual by the way, you save yourself TONS of times and confusion by just reading the manual

ZCP effects the EDC (Electronic Damping Control) modes.

[///My5UV]

So MDM is between DTC (one push of the button) and DSC off (hold down 5 seconds)?

I tried RTFM but don't have a 2011.5 manual (yet) :-)

Just killing time waiting to find out my delivery date...

[stega]

I have never seen any documentation that says ZCP MDM is any different than regular MDM...

[OC3]

Originally Posted by hamama3

side note:
a friend of mine has an 09 m3 without zcp and was telling me that its impossible to go sideways in MDM on his...wondering how this compares to an m3 with zcp's tweaked mdm

thanks!!

Again, and as others already stated, MDM & ZCP are mutually exclusive.

As for going side ways in MDM, don't know, never tried it in MDM. Just turn off DSC & sLiiiiiiiiiide.

[lve2xlr8]

Originally Posted by stega

I have never seen any documentation that says ZCP MDM is any different than regular MDM...

"Combined with remapped Electronic Damping Control and Dynamic Stability Control systems, the M3 with Competition Package is the best handling production M car ever built."

http://www.bimmerpost.com/2010/01/28...o-from-bmw-na/

[MRSSIIM3]

Originally Posted by lve2xlr8

"Combined with remapped Electronic Damping Control and Dynamic Stability Control systems, the M3 with Competition Package is the best handling production M car ever built."

http://www.bimmerpost.com/2010/01/28...o-from-bmw-na/

Was just gonna post this

Wondering how much more wheelspin this 'remapped' setting allows versus non ZCP m3s

[MRSSIIM3]

Originally Posted by ///My5UV

So MDM is between DTC (one push of the button) and DSC off (hold down 5 seconds)?

I tried RTFM but don't have a 2011.5 manual (yet) :-)

Just killing time waiting to find out my delivery date...

Theres no DTC on m3s, instead it's called M dynamic mode

[dexx]

I go sideways all the time. The traction control and stability control are smart, if it's a low traction situation it clamps down faster. If there's decent grip then I don't have a problem getting the tail out around 15-20 degrees.

I assume something bad will happen if a cop ever sees me, but the car is incredibly predictable, very comfortable with MDM on.

In MDM traction control will also reach hysteresis in a straight line. I didn't make note of how many MPH it allowed since I was trying to get unstuck, but it's a significant number. No way for me to compare to non-ZCP. If you don't know what I mean, there's no point in explaining it further.

[mkoesel]

Originally Posted by kaykay

MDM has NOTHING to do with ZCP or non-ZCP

...

ZCP effects the EDC (Electronic Damping Control) modes.

In addition to the active EDC Sport mode, ZCP package also includes remapped MDM (if ZTP equipped for ZCP cars built before September 2011, all ZCP cars after) DSC mode. It allows for more slip before intervening than on non-ZCP cars. As far as I know, though, the exact (quantitative) differences are not public. If you search you should be able to find some discussion of it. Let me know if you can't find it.

OP, there's not much info out there, and as far as I know there hasn't been any comparison tests between the two. Best you could do is try the two back to back and compare the results.