MDM euro Coding

[Jorgem2009]

does anyone know where to find the file and change it to MDM euro?

[dmk08]

Originally Posted by Jorgem2009

does anyone know where to find the file and change it to MDM euro?

Is it different on this car?

[Jorgem2009]

Originally Posted by dmk08

Is it different on this car?

I don't know but would appreciate any help finding it. need euro MDM asap!

[shawnsheridan]

I coded an F83 M4 DSC module for Europe and then back to U.S. and compared them, and these are the coding differences:

U.S.:

C_Laenderkennung => US
CTpmsMarket => US
CPrewarnEnable => disable
CPrewarnIgnition => disable
CalLrPDevMax => 100kpa
CPInitRangeMax => 200kpa
UiaSetLevelPc => 25%
UiwSetLevelPc => 20%
C_Werksnummer => Werte = 06, 10 (Calculated value)
C_Codierdatum => Werte = 14, 08, 04 (Calculated value)

EUROPE:

C_Laenderkennung => ECE
CTpmsMarket => EU
CPrewarnEnable => enable
CPrewarnIgnition => enable
CalLrPDevMax => 50kpa
CPInitRangeMax => 80kpa
UiaSetLevelPc => 20%
UiwSetLevelPc => 15%
C_Werksnummer => Werte = 12, 34 (Calculated value)
C_Codierdatum => Werte = 14, 11, 23 (Calculated value)

[MPRESSM4]

Originally Posted by shawnsheridan

I coded an F83 M4 DSC module for Europe and then back to U.S. and compared them, and these are the coding differences:

U.S.:

C_Laenderkennung => US
CTpmsMarket => US
CPrewarnEnable => disable
CPrewarnIgnition => disable
CalLrPDevMax => 100kpa
CPInitRangeMax => 200kpa
UiaSetLevelPc => 25%
UiwSetLevelPc => 20%
C_Werksnummer => Werte = 06, 10 (Calculated value)
C_Codierdatum => Werte = 14, 08, 04 (Calculated value)

EUROPE:

C_Laenderkennung => ECE
CTpmsMarket => EU
CPrewarnEnable => enable
CPrewarnIgnition => enable
CalLrPDevMax => 50kpa
CPInitRangeMax => 80kpa
UiaSetLevelPc => 20%
UiwSetLevelPc => 15%
C_Werksnummer => Werte = 12, 34 (Calculated value)
C_Codierdatum => Werte = 14, 11, 23 (Calculated value)

What do the listed parameters mean?

[shawnsheridan]

C_Laenderkennung is "control of country-specific characteristics such as the MDM", but specifically what that entails and what the other settings control, I have no idea.

[MFOUR]

Had my M4 coded to Euro MDM on Saturday. Huge difference over US version. You can get yourself sideways in a hurry before it kicks in. Definitely a worthwhile code change, but be careful.

[Jorgem2009]

Originally Posted by shawnsheridan

I coded an F83 M4 DSC module for Europe and then back to U.S. and compared them, and these are the coding differences:

U.S.:

C_Laenderkennung => US
CTpmsMarket => US
CPrewarnEnable => disable
CPrewarnIgnition => disable
CalLrPDevMax => 100kpa
CPInitRangeMax => 200kpa
UiaSetLevelPc => 25%
UiwSetLevelPc => 20%
C_Werksnummer => Werte = 06, 10 (Calculated value)
C_Codierdatum => Werte = 14, 08, 04 (Calculated value)

EUROPE:

C_Laenderkennung => ECE
CTpmsMarket => EU
CPrewarnEnable => enable
CPrewarnIgnition => enable
CalLrPDevMax => 50kpa
CPInitRangeMax => 80kpa
UiaSetLevelPc => 20%
UiwSetLevelPc => 15%
C_Werksnummer => Werte = 12, 34 (Calculated value)
C_Codierdatum => Werte = 14, 11, 23 (Calculated value)

@frogman, finally found the values we needed to code MDM on Saturday

[SOM3]

Originally Posted by MFOUR

Had my M4 coded to Euro MDM on Saturday. Huge difference over US version. You can get yourself sideways in a hurry before it kicks in. Definitely a worthwhile code change, but be careful.

Do you know what was coded specifacally to change to Euro MDM? If no, can you ask whoever perfromed coding what it was?

[RickMonet]

Originally Posted by MFOUR

Had my M4 coded to Euro MDM on Saturday. Huge difference over US version. You can get yourself sideways in a hurry before it kicks in. Definitely a worthwhile code change, but be careful.

Details on how EU MDM is coded would be very helpful to the forum. I imagine quite a few of us are interested.

Thank you.

[castilla]

Originally Posted by MFOUR

Had my M4 coded to Euro MDM on Saturday. Huge difference over US version. You can get yourself sideways in a hurry before it kicks in. Definitely a worthwhile code change, but be careful.

You mean Euro version is more dangerous than US version? Euro version allows more sideways?

[MFOUR]

I do not know the specific parameters of the euro MDM code, but asked my coder to chime in on this thread if he gets a chance. As stated in the original post, very worthwhile change for those of us looking to push it a bit...

[Jorgem2009]

Originally Posted by MFOUR

I do not know the specific parameters of the euro MDM code, but asked my coder to chime in on this thread if he gets a chance. As stated in the original post, very worthwhile change for those of us looking to push it a bit...

sounds good, yea I definitely want to push it at the track but don't want to go off again haha

[shawnsheridan]

Originally Posted by RickMonet

Details on how EU MDM is coded would be very helpful to the forum. I imagine quite a few of us are interested.

Thank you.

I posted them above.

[Frogman]

Originally Posted by Jorgem2009

@frogman, finally found the values we needed to code MDM on Saturday

ok, have you found anyone to code it for you?

Send me a PM if you need help.

[Jorgem2009]

Originally Posted by Frogman

ok, have you found anyone to code it for you?

Send me a PM if you need help.

I think im going hit up @steve33 since hes in OC too, thanks again!

[kinimod]

Originally Posted by shawnsheridan

I posted them above.

But do you know what these values mean? Merely comparing the 2 DSC units is very valuable but we don't actually know if they are related to MDM or which values specifically need to be changed. Not trolling, just genuinely curious as I'd like to code this on my M4 too.

Thanks

[shawnsheridan]

Originally Posted by kinimod

But do you know what these values mean? Merely comparing the 2 DSC units is very valuable but we don't actually know if they are related to MDM or which values specifically need to be changed. Not trolling, just genuinely curious as I'd like to code this on my M4 too.

Thanks

I have no idea. But, I am not aware of any other differences with European DSC either other than MDM.

[kinimod]

Originally Posted by shawnsheridan

I have no idea. But, I am not aware of any other differences with European DSC either other than MDM.

Is there a chance that MDM is actually coded elsewhere in a different unit anyway? You know, just like VO needs to be changed to remove US spec for some codings.

[shawnsheridan]

Originally Posted by kinimod

Is there a chance that MDM is actually coded elsewhere in a different unit anyway? You know, just like VO needs to be changed to remove US spec for some codings.

Anything is possible, but it is highly unlikely. In the E9x M3, it was strictly DSC Coding, and I see no reason why F8x would be any different.

[M3 Adjuster]

Originally Posted by MFOUR

Had my M4 coded to Euro MDM on Saturday. Huge difference over US version. You can get yourself sideways in a hurry before it kicks in. Definitely a worthwhile code change, but be careful.

Originally Posted by castilla

You mean Euro version is more dangerous than US version? Euro version allows more sideways?

YES! .... in your words.. Euro version allows more sideways!

Euro MDM allows a much higher slip/yaw angle before it takes any action to control the car.

If the vehicle slip angle is not too great, it also allows you to do things like add power in situations where regular MDM/traction control would be retarding the throttle and braking a wheel.

if the vehicle slip angle gets to great then it will react to save the car..but in some situations this may be TOO LATE to stop physics.


In effect, yes. It is more " dangerous " because the car won't save you like it will with the standard programming.

For example.. let's say you are at a traffic light.. and want to do a burnout while making a 90 degree turn when the light turns green !
" Hold my beer and watch this... WOOHOO! "

With DSC fully on.. you can spin the tires briefly.. TC cuts in .. power cuts out.. .. and you can barely get the car sideways and the party is over.

With MDM on.. you can get some tire slip... the tires might spin up a little.. the TC light will flash and keep the tires from lighting up totally..
If you try to turn sharply then once the car gets past ( i am guessing heree).. say.. 25 degree slip angle then it will start braking a wheel and retarding the throttle.
The end result is youcan take off pretty fast... really can't do a total burnout.. and you really won't spin the car.

With euro MDM you can do the same thing and the car will not take action as quickly. The TC light will not come on as quiickly.. when it does.. it does not intervene near as harshly. You WILL light the tires up under acceleration...... almost in the same was as if DSC is off. the car will definitely rotate before any intervention occurs... Let's assume that the car can now get up to 40 percent angle from going straight. This can easily mean the driver can get over their head and by the time they get their foot out of the throttle the car is already too far sideways to catch and the owner could wreck the car or at the least end up having rotated too far to save and end up in an embarrasing 180 degree rotation.

These new turbo BMWs have a TON of torque... and in my opinion, OEM wheels and tires that are really not wide enough to suit the power available in the chassis. Because of these factrors... one can easily get over their head with Euro MDM on or with DSC fully off.

I strongly encourgage that if one is wanting to code Euro MDM to the car that you autocross, attend a car control clinic, learn to drive the car on the track at an HPDE or practice drifting in a closed course environment to develop some driver skilll as opposed to hooning around on the street.

one final thing regarding MDM. On the track... A good SMOOTH driver can get the car to allow a fair amount of slip angle. I can smoothly pitch my 1M into a corner at speed and get it sideways entering the corner and still apply throttle and power the car through the corner. Throwing the car into the same corner in a ham fisted way with more force and more slip angle like a drifter will cause the system to intervene and put the driver in the penatly box ala full traction control on. Essentially.. the system will allow you to get the car side ways in a controlled manner.. but not in a reckless fashion.

Caveat Emptor!

[BlackCobra08]

So we have only a handful of members that have done this? Now my curiousity is peaked. I would be interested to see what euro mdm is all about after a fresh dusting of snow in a parking lot