[Patton250]

Originally Posted by sleepdoc

I have it in my car. I was adamant about having it.

I've used it now exactly zero times 🤪

Maybe someday I'll use it…..

Just pull into a parking lot and go to town.

[edofloat]

Originally Posted by M3AWD

Be careful there's a difference between DSC (Stability Control) and TC (Traction Control). Using the 10 stage TC system in RWD mode gives you the ability to set the level of Traction Control but it does not provide any Stability Control (i.e. DSC is still off). For example, when DSC is ON it uses ABS in certain situations but in your case it'll be OFF.

According to the tech document it has a slip controller so it appears that there is some sort of variation of stability control, possibly limited, but must be using yaw and steering angle along with traction to function.

[ElHeffe]

Any update on this? It's the only option I'm missing that I regret not having.

[BMWRacer523]

Originally Posted by edofloat

According to the tech document it has a slip controller so it appears that there is some sort of variation of stability control, possibly limited, but must be using yaw and steering angle along with traction to function.

"M Traction Control and MDM are different functions, hence there is no M Traction Control setting which equals MDM.
Simply spoken, M Traction Control is a slip control mechanism that controls rear wheel slip in 10 stages when DSC is switched off. Level 0 is OFF and allows for unlimited wheel spin. The higher levels allow for very limited slip. The slip is controlled using the engine‘s rpm as the only parameter. The vehicle’s yaw rate is not a controlled parameter here.
In contrast to M Traction Control, MDM is a part of the DSC mechanism and actively controls the vehicle‘s yaw rate. DSC/MDM use engine power controls as well as brake interventions to stabilize the vehicle dynamics on the road. MDM uses M Traction Control levels 4 to 7 depending on yaw rate behaviour."

https://www.bmw-m.com/en/topics/maga...n-control.html

[TrentMeister]

Yes 100%.

Most important feature IMO

[McLaren720s]

Question for those with M Drive Professional package.

If you must have DSC off to engage 4WD Sport, does that basically mean you have absolutely no chassis stabilization intervention in this mode? No MDM and no DSC?

[S@v3f3rris]

Originally Posted by McLaren720s

Question for those with M Drive Professional package.

If you must have DSC off to engage 4WD Sport, does that basically mean you have absolutely no chassis stabilization intervention in this mode? No MDM and no DSC?

I run 4WD Sport in MDM mode as my M2 button. 10 stage traction control is only available for AWD if DSC is fully off and transmission set for 2WD, I believe.

[The Nerd]

Originally Posted by McLaren720s

Question for those with M Drive Professional package.

If you must have DSC off to engage 4WD Sport, does that basically mean you have absolutely no chassis stabilization intervention in this mode? No MDM and no DSC?

I thought the 10 stage traction control only had to do with varying stages of traction in RWD mode….and had nothing to do with either of the AWD modes (4WD and 4WD Sport). No? In other words….if I don't care at all about going full RWD….will M Sport Professional make any difference to me whatsoever?

[McLaren720s]

Originally Posted by The Nerd

I thought the 10 stage traction control only had to do with varying stages of traction in RWD mode….and had nothing to do with either of the AWD modes (4WD and 4WD Sport). No? In other words….if I don't care at all about going full RWD….will M Sport Professional make any difference to me whatsoever?

That's where I'm confused. I thought you had to have DSC off in order to engage 4WD Sport which leaves you with no chassis stability management other than M Traction Control.

This is what I'm trying to figure out because I need to decide whether to add this option to my car or not.

[jimbethesda]

Originally Posted by McLaren720s

That's where I'm confused. I thought you had to have DSC off in order to engage 4WD Sport which leaves you with no chassis stability management other than M Traction Control.

This is what I'm trying to figure out because I need to decide whether to add this option to my car or not.

Here are the setting possibilities:

4WD: no requirement
4WD Sport: requires DSC to be off, but you can have MDM on.
RWD: DSC off, MDM off
M Traction control (0 - 10): must be in RWD (which means DSC and MDM are off)

[The Nerd]

Originally Posted by jimbethesda

Here are the setting possibilities:

4WD: no requirement
4WD Sport: requires DSC to be off, but you can have MDM on.
RWD: DSC off, MDM off
M Traction control (0 - 10): must be in RWD (which means DSC and MDM are off)

That answers it….M Drive Professional does not affect AWD whatsoever.

[McLaren720s]

Originally Posted by jimbethesda

Here are the setting possibilities:

4WD: no requirement
4WD Sport: requires DSC to be off, but you can have MDM on.
RWD: DSC off, MDM off
M Traction control (0 - 10): must be in RWD (which means DSC and MDM are off)

That solves it! Thanks!

[jp1984]

Not precisely relevant but a question relating anyways.

Does this seem like something most tuners will "throw in" in the future (whenever everyone breaks the ECU open) like Euro MDM on the E92?

[NKGK20]

Originally Posted by jp1984

Not precisely relevant but a question relating anyways.

Does this seem like something most tuners will "throw in" in the future (whenever everyone breaks the ECU open) like Euro MDM on the E92?

Mission tunning unlocked the ECU for 19-20 x3m and has a 2wd feature. But I feel like it's useless.
Unless you want to do donuts?

[jimbethesda]

Originally Posted by NKGK20

Mission tunning unlocked the ECU for 19-20 x3m and has a 2wd feature. But I feel like it's useless.
Unless you want to do donuts?

Or want to put it into 2WD mode sometimes and still have traction control. If set to 10, quite a bit of traction control. That's why I got it. Don't plan on drifting, but might want to go into RWD mode occasionally.

[bmedude]

This feature is a waste of money for most drivers. I wouldn't spec it.

[jimbethesda]

Originally Posted by bmedude

This feature is a waste of money for most drivers. I wouldn't spec it.

True, but so is the 503 hp, track ready cooling system, etc. Basically the entire car is a waste of money for most drivers. If you're the type of driver that this $900 option feels like a waste of money, I would look at the regular 3 or 4 series. They offer a lot of performance for a lot less.

Just my $.02.

[NKGK20]

Originally Posted by jimbethesda

Or want to put it into 2WD mode sometimes and still have traction control. If set to 10, quite a bit of traction control. That's why I got it. Don't plan on drifting, but might want to go into RWD mode occasionally.

Rolling race Rwd vs xdrive is identical until about 135 the rwd starts to pull slowly. But sure if you're wanting to feel RWD just for fun I'd say you need it. I speced it on my xdrive that's not here yet thinking I'd need it for rolling races. But on the contrary AWD is better of roll if you don't plan on staying stock.. either way it's 900$ on a 85k car.. I'd get it to have.

[Kief]

Originally Posted by The Nerd

That answers it….M Drive Professional does not affect AWD whatsoever.

So it’s has little to no benefit for AWD cars? Trying to decide my build. Thx

[jimbethesda]

Originally Posted by Kief

So it’s has little to no benefit for AWD cars? Trying to decide my build. Thx

The opposite. If you want to put your car in RWD, you need to turn off ALL traction control (including MDM). If you have M professional, you can turn that on 1-10.

To summarize:

If you have a RWD car, M Drive Professional is probably only worth it for drifting.

If you have xdrive, it's good for drifting AND if you want to put it in RWD mode sometimes and still have traction control. Stage 7 is close to what MDM is.

[no2msrp]

Originally Posted by jimbethesda

The opposite. If you want to put your car in RWD, you need to turn off ALL traction control (including MDM). If you have M professional, you can turn that on 1-10.

To summarize:

If you have a RWD car, M Drive Professional is probably only worth it for drifting.

If you have xdrive, it's good for drifting AND if you want to put it in RWD mode sometimes and still have traction control. Stage 7 is close to what MDM is.

This^. I only got it for traction control in case using 2wd mode.

[jas165]

From what I understand, you can't add the M Drive Professional Package post-delivery, right?