[Socket]

Im confused

Is DSC and DTC on by default when you start the car?
Pressing the button turns off DSC but leaves DTC on?
Holding the button turns both DSC and DTS off?
Is this correct?

and if so what does the JB toggle DTC one push at start up do??

Hey BMW you could have sorted this out by just having two buttons you know

[sjf430]

Originally Posted by Socket

Im confused

Is DSC and DTC on by default when you start the car?
Pressing the button turns off DSC but leaves DTC on?
Holding the button turns both DSC and DTS off?
Is this correct?

and if so what does the JB toggle DTC one push at start up do??

Hey BMW you could have sorted this out by just having two buttons you know

First three questons, yes. Wish I had a 335 now lol

[Socket]

Originally Posted by sjf430

First three questons, yes. Wish I had a 335 now lol

Thanks, I'm no longer confused .... party time

[harms]

Originally Posted by Socket

Im confused

Is DSC and DTC on by default when you start the car?
Pressing the button turns off DSC but leaves DTC on?
Holding the button turns both DSC and DTS off?
Is this correct?

and if so what does the JB toggle DTC one push at start up do??

Hey BMW you could have sorted this out by just having two buttons you know

DSC is on by default when you start the car. DTC is not on.

One push of DTC means DTC on, DSC restricted (mainly sideways stability control)
Push and hold is DSC completely off. No nanny.

Jb4 toggle just does the one push for you so you don't have to.

Simples eh

[silver07335i]

I turn both off when I need to record logs after flashing a new tune.

[Socket]

Originally Posted by harms

DSC is on by default when you start the car. DTC is not on.

One push of DTC means DTC on, DSC restricted (mainly sideways stability control)
Push and hold is DSC completely off. No nanny.

Jb4 toggle just does the one push for you so you don't have to.

Simples eh

Simples no LOL
So if you toggle JB4 one push (6-4) ,means when you start the car the default setting is DTC on, DSC restricted (mainly sideways stability control)
Just like if you pushed the button once in stock mode

I think I got it ...

[Socket]

Here is what BMW has to say about this topic


Dynamic Traction Control (DTC).

Dynamic Traction Control (DTC) allows more wheel slip and thus a more dynamic driving style with higher wheel traction and DSC controlling stability. A small amount of spin on the drive wheels improves traction when pulling off from a standstill in snow or on loose terrain.

Dynamic Traction Control (DTC) is a sub-function of the Dynamic Stability Control (DSC) system that can be turned on and off. DTC has two major roles: to regulate traction and to enable sports-style driving while providing active stability control.

When the drive wheels start losing traction the DSC automatically begins stabilisation measures. The Dynamic Stability Control system curbs the engine output and stops slip on the wheels. In exceptional situations, however, a small amount of wheel slip can be an advantage.

When driving in deep snow, slush or on loose terrain a small amount of wheel spin improves traction. For these occasions, as well as those when the drivers want a sportier driving style, the DTC can be activated by pressing a button and this allows more slip and reduces the DSC’s curbing of the engine. The result: better traction and more thrust.

The DTC also makes driving on snow and ice-free roads more dynamic. When activated, the DTC allows sporty drivers more room to manoeuvre around curves than the Dynamic Stability Control and even permits controlled drifts. The driver retains complete control over the vehicle in every situation and the Dynamic Stability Control’s stabilising measures remain active even when the DTC is activated.

[AUSf22]

Now that you have a better understanding Socket, a video of yourself in some sideways action is required

[sbce90]

TIMYOYO!

Not sure it is of any relevance to me as I have no power any more, but in the merc I would go "Sport" mode which was the same as pressing the DTC button once. Only some times I'd go OFF for um... fun..

However I think the driver needs to know his/her limits as well as the cars limits before deciding that they are a driving pro and can go full off all the time. There is a reason there are these safety systems after all, it isn't to kill driving experience but make it safe for all road users (not just the driver). Also I'm not sure what view insurance etc... will take if they find out someone was TIMYOYO and had an at fault accident.

[Socket]

Found this chart that identifies which systems are on and off in stock, DTC only and YOYO modes

ABS = Anti-lock Brake System = No need to explain
ASC = Automatic Stability Control = Prevents wheel slip by controlling engine/brakes
MSR = Engine Drag Torque control = Prevents wheels locking when engine braking on gravel etc
EBV = Electronic Brake – Force distribution = Ensures even brake force on rear and front brake based when braking
DBC = Dynamic Brake Control = Adjusts brake pressure to suit current speed of the vehicle
CBC = Cornering Brake Control = Applies brake pressure asymmetrically to improve cornering
Dry Braking = Light brake application in wet to keep brakes dry
Start Assist = Prevent car rolling back on a hill
Brake Standby = Prepares the car for braking when the accelerator is released suddenly
Soft Stop = Releases braking pressure for a smoother stop
Fading Assistance = Increases brake hydraulic pressure as brake temp increases
Trailer Stabilization Logic – Not sure how often we tow trailers so skipping this
Yaw Moment Control = Improve lateral stability by applying brake

[Socket]

Originally Posted by AUSe92

Now that you have a better understanding Socket, a video of yourself in some sideways action is required

Like this

[AUSf22]

Originally Posted by Socket

Like this

wow holy, I didn't know my N52 car can do that ?!?!

need to learn the scandinavian flick ASAPS

[Socket]

wow holy, I didn't know my N52 car can do that ?!?!

need to learn the scandinavian flick ASAPS

[Wolf 335]

Socket thank you for clarifying this.

[tony20009]

Originally Posted by Socket

Found this chart that identifies which systems are on and off in stock, DTC only and YOYO modes

ABS = Anti-lock Brake System = No need to explain
ASC = Automatic Stability Control = Prevents wheel slip by controlling engine/brakes
MSR = Engine Drag Torque control = Prevents wheels locking when engine braking on gravel etc
EBV = Electronic Brake – Force distribution = Ensures even brake force on rear and front brake based when braking
DBC = Dynamic Brake Control = Adjusts brake pressure to suit current speed of the vehicle
CBC = Cornering Brake Control = Applies brake pressure asymmetrically to improve cornering
Dry Braking = Light brake application in wet to keep brakes dry
Start Assist = Prevent car rolling back on a hill
Brake Standby = Prepares the car for braking when the accelerator is released suddenly
Soft Stop = Releases braking pressure for a smoother stop
Fading Assistance = Increases brake hydraulic pressure as brake temp increases
Trailer Stabilization Logic – Not sure how often we tow trailers so skipping this
Yaw Moment Control = Improve lateral stability by applying brake

Wow. I wish I'd seen this chart seven years ago! I hate that MSR feature. I've created a "near drama" situation more often than I actually wanted one because of it, and each time it was when there wasn't one until I employed engine braking. It wasn't that I lost control of the car; it's that until I got used to it, I wasn't expecting that to happen.

My 1993 318i never did that, and I had wondered why the E92's wheels lock up upon engine braking. TY for sharing that.

Edit:
As I think about it, now that I understand what the thing does, "DTC" would better be described as "Sport" or something more intuitive than "DTC." They also could have just written that "DSC" puts the car in "nanny" mode. I would have then known what the difference is and just automatically set the car to "Sport" before I began driving.

I don't know everything about driving, but for the life of me, I don't know why anybody would want the wheels to lock up when they are engine braking. I do know the first time the car did that, it threw the rear out a bit and scared the crap outta me! I fully expected the car's "attitude" to remain the same other than its moving in the same direction of travel, but at a decreasing rate.

I don't mind a little sliding of the back end if that's what's "supposed" to happen given how I'm controlling the car.

All the best.

[ATTN]

Originally Posted by froop

DSC by default (unless you have a JB4) is always on when you turn on the car. This stands for dynamic stability control. It is the most invasive of the traction controls and will cut engine power at any hint of wheel slip.

If you press the DTC button it will turn off DSC and turn on DTC (Dynamic Traction Control). This is designed for snow driving where some forward slip may be wanted. In this mode, it will allow some forward slip of the drive wheels and very limited later slip before cutting in and spoiling the fun.

Holding down the DTC button with disengage both DSC and DTC meaning all traction controls are completely off. This mode is also called TIMYOYO (That's It Motherfucker, You're On Your Own). This mode will let you spin your wheels to your hearts content, whether forwards, backwards, sideways, 180s, 360s, into a tree, whatever you want.

TIMYOYO is how I drive always, whether on the track or on the street, rain or shine. Be safe out there and know your limits before considering this option though.

Hahaha :

TIMFYOYO

[kookie]

TIMFYOYO best Abbreviation I have seen to date.

[lemonpark]

my understanding of it is,
DTC ON and DSC ON - just how the car is normally, car does NOT allow any wheel spin.
DTC OFF and DSC ON (one push) - car allows wheel spin in a straight line (ie. burnout) but will barely allow you to get slideways
DTC OFF and DSC OFF (hold button) - car can now go sliideways

thats my own little explanation of i and how I feel the systems work, may be wrong but from experience thats what it feels like

[7smurfs]

Originally Posted by harms

DSC and DTC is on by default when you start the car.

One push of DTC means DTC off, DSC restricted (mainly sideways stability control)
Push and hold is DSC completely off. No nanny.

Jb4 toggle allows the car to start with DTC off as default

Simples eh

Fixed for you

[harms]

Originally Posted by 7smurfs

Fixed for you

On my car when I press DTC once, the message on iDrive says "DTC activated, DSC restricted", which suggests that DTC is not on by default. Just saying

[Socket]

Originally Posted by kookie

TIMFYOYO best Abbreviation I have seen to date.

Why not get the Tee Shirt

[Socket]

Originally Posted by harms

On my car when I press DTC once, the message on iDrive says "DTC activated, DSC restricted", which suggests that DTC is not on by default. Just saying

As I understand it DTC is like a sub set of the DSC
So when you press the button it turns off DMS (or I should say nerfs it) leaving DTC on (ie DTC activated) and while the DSC is still operational in the background different limits are applied to engine braking etc (ie DSC restricted)

As quoted above, it would have been easier if BMW just called DTC sport mode,

but then we wouldnt have anything to write about in the forums