More power in MDM?

[Holset]

Hello
I have driving my new manual M4 for close to a week now and wow what an awesome car i really enjoying it.
I have not done the first service yet and the car has rolled about 550km/342miles.

I have tested the car in diffrent modes ect and one thing that puzzles me is that the car seems to pull harder and more aggressive i MDM than when DSC is completely of.
It even spinn the tires more and gets more lose in the back if the road is dry to a to a certain point ie if its wet it will cut power more abruptly ,with DSC off it continues to spinn the tires.

Maybe im just imagining this? but i would like the more aggressive pull with DSC off or even more hehe.
Maybe this will change when the car gets the first service?

Anyone else who experienced the same thing?

[Lups]

Originally Posted by Holset

Hello
I have driving my new manual M4 for close to a week now and wow what an awesome car i really enjoying it.
I have not done the first service yet and the car has rolled about 550km/342miles.

I have tested the car in diffrent modes ect and one thing that puzzles me is that the car seems to pull harder and more aggressive i MDM than when DSC is completely of.
It even spinn the tires more and gets more lose in the back if the road is dry to a to a certain point ie if its wet it will cut power more abruptly ,with DSC off it continues to spinn the tires.

Maybe im just imagining this? but i would like the more aggressive pull with DSC off or even more hehe.
Maybe this will change when the car gets the first service?

Anyone else who experienced the same thing?

I never OT so don't consider this as the first.

I haven't driven one, so please share all your words even in Swedish to me, just take it to my wall. I'm pretty good with that language too, even though I have forgotten how to write it.

Tell more abt the manual, that's on my sheet, and this is pretty american forum, so we are rare and even rarer here.

Cheers,

Lups, the Finn.

[Holset]

Originally Posted by Lups

I never OT so don't consider this as the first.

I haven't driven one, so please share all your words even in Swedish to me, just take it to my wall. I'm pretty good with that language too, even though I have forgotten how to write it.

Tell more abt the manual, that's on my sheet, and this is pretty american forum, so we are rare and even rarer here.

Cheers,

Lups, the Finn.

The manual is good the feel is good but could be better its a bit typical BMW feeling not so mechanical its like there is some dampening in the linkage.
The throw is good and its the best BMW manual i have felt and i think the feel is getting better or its just me who is getting used to it.


Lups så du är finska alltså mina föräldrar kom faktiskt från Finland hit till Sverige men själv är jag född och uppvuxen i Sverige och pratar ingen finska.

[M6-Coupe]

MDynamic Mode MDM
The M Dynamic Mode is a mode of the DSC Dynamic Stability Control. It enables driving with greater longitudinal and lateral acceleration on dry road surfaces, however with limited vehicle stability. The system does not provide
stabilizing intervention by reducing the engine output and braking at the wheels until the absolute driving limit is reached.
Steering corrections by the driver may also be required in this driving state. With the M Dynamic Mode activated, stabilizing interventions are only carried out to a reduced degree.
with that said there is no more power either in MDM or DSC OFF, however there is less intervention in MDM than DSC ON and you feel more freedom. MDM is pretty safe on dry road, however it's as dangerous as DSC OFF when the road is wet and driver can lose the control easily if has not enough skill! You feel more aggressive driving in MDM than DSC OFF probably because you have not floored the gas since you are in Brake-in period. If you do, then you will see how easy the rear end can go all around

[parky1215]

I think it is just cause of sheer amount of torque this car has.
Since MDM intelligently detects and adjusts to wheel spin and etc, car will put more power to the ground vs. having too much wheel spin with dsc off.
You will probably need really good set of track tires to put down more power during hard acceleration with traction off.

[Holset]

Originally Posted by M6-Coupe

MDynamic Mode MDM
The M Dynamic Mode is a mode of the DSC Dynamic Stability Control. It enables driving with greater longitudinal and lateral acceleration on dry road surfaces, however with limited vehicle stability. The system does not provide
stabilizing intervention by reducing the engine output and braking at the wheels until the absolute driving limit is reached.
Steering corrections by the driver may also be required in this driving state. With the M Dynamic Mode activated, stabilizing interventions are only carried out to a reduced degree.
with that said there is no more power either in MDM or DSC OFF, however there is less intervention in MDM than DSC ON and you feel more freedom.
MDM is pretty safe on dry road, however it's as dangerous as DSC OFF when the road is wet and driver can lose the control easily if has not enough skill!
You feel more aggressive driving in MDM than DSC OFF probably because you have not floored the gas since you are in Brake-in period. If you do, then you will see how easy the rear end can go all around

Yes i have read that text so i know what it does but thanks.

I have given the car full throttle since day one and the thing is that on dry road it seems to get more lose and aggressive in MDM than with DSC off.

[Holset]

Originally Posted by parky1215

I think it is just cause of sheer amount of torque this car has.
Since MDM intelligently detects and adjusts to wheel spin and etc, car will put more power to the ground vs. having too much wheel spin with dsc off.
You will probably need really good set of track tires to put down more power during hard acceleration with traction off.

Yes i think it could manage power better i feel like it pulls more g-forces but at same time it seems like the wheel spinns more and the back is kickin out too.
Its like BMW M has mapped a more aggressive tune in MDM or something but do not trust people with it in DSC off or im just imagining this.

[bmwm4f82]

Hej hej!

When did you place your order? My M4 is PDI ready in Halmstad port since last Thursday, and waiting for a truck to take it a measly 150 km to my dealer here in Göteborg!

[CanAutM3]

If MDM intervenes less than full DSC to control wheel spin in a given situation, yes you will have more power put the ground .

[acey81]

What annoys me is that quite often the DSC intervenes when changing when accelerating with 2/3 throttle from second to third and even third to fourth. I got a bit caught out when overtaking a couple of cars. When dry I'm always going to drive the car in MDM-mode.

[Holset]

Originally Posted by bmwm5e60

Hej hej!

When did you place your order? My M4 is PDI ready in Halmstad port since last Thursday, and waiting for a truck to take it a measly 150 km to my dealer here in Göteborg!

Tjena
I ordered the car in late march 28'e i think.
Your car will probably be with you soon fun times.

Originally Posted by CanAutM3

If MDM intervenes less than full DSC to control wheel spin in a given situation, yes you will have more power put the ground .

But im talking about MDM vs full DSC off.

Originally Posted by acey81

What annoys me is that quite often the DSC intervenes when changing when accelerating with 2/3 throttle from second to third and even third to fourth. I got a bit caught out when overtaking a couple of cars. When dry I'm always going to drive the car in MDM-mode.

I remember that it cut power in 3rd gear one time in the dry and i think MDM or DSC blinking in the dash i was a bit surprised by it ,dont remember which mode it was in.

[bmwm4f82]

Update! I pick it up tomorrow @ 11:00 !

[Holset]

Originally Posted by bmwm5e60

Update! I pick it up tomorrow @ 11:00 !

Nice! Congratulations!

[CanAutM3]

Originally Posted by Holset

But im talking about MDM vs full DSC off.

Oups, I missread your post.

Then all I can say is that it is in your head .

The car likely is able to put more power to the ground with DSC off relative to MDM for the same reason I mentioned above.

[Holset]

Originally Posted by CanAutM3

Oups, I missread your post.

Then all I can say is that it is in your head .

The car likely is able to put more power to the ground with DSC off relative to MDM for the same reason I mentioned above.

Yeah it may be in my head but it would be intresting to hear what other people has for experience about this.

Thinking of getting a Racelogic to do som testing fun to see what the car can do.

[hwalk]

Hi, i made the same experience driving in the MDM as i was to overtake a horrible slow driving swiss grandpa in left turn yesterday in the Blackforest (Germany)... I was running gear 2 and speeding up to 6000 rpm and when i shifted into 3 i fell in a sort of hole and felt to lose power for several seconds... the car nearly dove down a bit. I never had this kind of experience with my former E92 M3 in the MDM. If DSC is switched off there's no problem like this...

[Holset]

There is no more power in MDM. The reason i though so was that when i tested MDM i had cold tires and that the Wheel spunn a bit that so i got the impression that the car made more power. But ofcourse it spinn the tires with dsc full off to then the car can get really sideways. I have also noticed that with MDM on and i guess dsc fully on (never drive the car hard with it on) the car can limit power for a short time after gear skifts if i shift Quick.

[01ON19]

You also presumably have "Euro MDM" versus "U.S. MDM". Euro is supposed to be less aggressive in intervening. Something to keep in mind when looking at posts of different people's experiences.

[shortseller]

It is my understanding that MDM should only be kicking in if the car detects a measurable sideways slide, Is this correct?

In a straight line acceleration, even in MDM mode, I can still get my tires to chirp if I'm banging through gears with tempo with no flickering of the DSC light. So I'm assuming in a straight line, MDM will not interfere if tracion is lost.

[MaynardZed]

Originally Posted by shortseller

It is my understanding that MDM should only be kicking in if the car detects a measurable sideways slide, Is this correct?

In a straight line acceleration, even in MDM mode, I can still get my tires to chirp if I'm banging through gears with tempo with no flickering of the DSC light. So I'm assuming in a straight line, MDM will not interfere if tracion is lost.

MDM will still intervene in a straight line, especially if road uneven and on full throttle.

Fwiw I have owned my M4 for almost a year and almost always drive it on the street with at least MDM on. On the track, it's all DSC off, which is the only way to explore this chassis to its fullest.

[shortseller]

Originally Posted by MaynardZed

MDM will still intervene in a straight line, especially if road uneven and on full throttle.

Fwiw I have owned my M4 for almost a year and almost always drive it on the street with at least MDM on. On the track, it's all DSC off, which is the only way to explore this chassis to its fullest.

Thank you for sharing that insight.

[Ray knight]

i did not notice any difference. i just leave DSC on all the time. the car transfers a lot more power to the ground that my M5 did already so i like the safety net of the DSC.