What does DTC really do?
04-08-2007, 10:51 AM
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In addition: when driving with snowchains, there is always a little spin involved. In that case you need to override the DTC by pushing the button.
04-08-2007, 07:08 PM
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Guys, I just drove with the red lights on today (Pressed the DTC button for 3 seconds), it was awesome. the wheels just didn't wanna stop to spin.. hahaha.. it was great..thanx.. 
04-08-2007, 07:19 PM
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My Ride: 2008 Silverstone II E60 M5 2012 E70 AW X5 50i Sport w/ LCI Aero Kit and Rocker Panels
So then there are 3 settings, right? Correct me here if I'm wrong...
Setting 1: Leaving button alone = full traction control? Basically, the car picks up on everything and decides where traction is needed?
Setting 2: Tapping the DTC button once = Partial traction control? What's the difference betweeen Setting 1 and Setting 2 then or more importantly, what's the point of #2 then?
Setting 3: Holding DTC for 3 seconds = no traction control. Wheels spin freely. Control is up to driver.
Setting 1: Leaving button alone = full traction control? Basically, the car picks up on everything and decides where traction is needed?
Setting 2: Tapping the DTC button once = Partial traction control? What's the difference betweeen Setting 1 and Setting 2 then or more importantly, what's the point of #2 then?
Setting 3: Holding DTC for 3 seconds = no traction control. Wheels spin freely. Control is up to driver.
04-08-2007, 08:26 PM
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Originally Posted by cmansbimmer' post='411570' date='Apr 8 2007, 08:19 PM
So then there are 3 settings, right? Correct me here if I'm wrong...
Setting 1: Leaving button alone = full traction control? Basically, the car picks up on everything and decides where traction is needed?
Setting 2: Tapping the DTC button once = Partial traction control? What's the difference betweeen Setting 1 and Setting 2 then or more importantly, what's the point of #2 then?
Setting 3: Holding DTC for 3 seconds = no traction control. Wheels spin freely. Control is up to driver.
Setting 1: Leaving button alone = full traction control? Basically, the car picks up on everything and decides where traction is needed?
Setting 2: Tapping the DTC button once = Partial traction control? What's the difference betweeen Setting 1 and Setting 2 then or more importantly, what's the point of #2 then?
Setting 3: Holding DTC for 3 seconds = no traction control. Wheels spin freely. Control is up to driver.
04-09-2007, 07:00 AM
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Originally Posted by cmansbimmer' post='411570' date='Apr 8 2007, 10:19 PM
So then there are 3 settings, right? Correct me here if I'm wrong...
Setting 1: Leaving button alone = full traction control? Basically, the car picks up on everything and decides where traction is needed?
Setting 2: Tapping the DTC button once = Partial traction control? What's the difference betweeen Setting 1 and Setting 2 then or more importantly, what's the point of #2 then?
Setting 3: Holding DTC for 3 seconds = no traction control. Wheels spin freely. Control is up to driver.
Setting 1: Leaving button alone = full traction control? Basically, the car picks up on everything and decides where traction is needed?
Setting 2: Tapping the DTC button once = Partial traction control? What's the difference betweeen Setting 1 and Setting 2 then or more importantly, what's the point of #2 then?
Setting 3: Holding DTC for 3 seconds = no traction control. Wheels spin freely. Control is up to driver.
On tap- DTC on. Allows some slippage for getting started in deep snow, use with chains, sand, etc.
Hold- DTC/DSC off (and active steering I think). For the Fangio/ Senna's amongst us.
04-09-2007, 04:05 PM
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Originally Posted by Torquey5' post='411282' date='Apr 8 2007, 12:09 AM
There was a very similar question in one of the other threads earlier in the afternoon when I had nothing to do and replied. Basically it is what it says, traction control. When you push the button once an orange/yellow light that says "DTC" appears in your center area between the speedometer and RPM dial. That means if your car detects wheel spin such as a burnout, your car will somewhat take over to correct it so you regain traction.
Now when you push and hold the button for 3 seconds, a red triangle light symbol will appear instead of the orange "DTC". That means you have full control of your car and you can have some fun by doing full burnouts, donuts, etc. and your computer will not correct any of it.
Make sense?
Dan
Now when you push and hold the button for 3 seconds, a red triangle light symbol will appear instead of the orange "DTC". That means you have full control of your car and you can have some fun by doing full burnouts, donuts, etc. and your computer will not correct any of it.
Make sense?
Dan
That button holding is counter-intuitive--just like the damned trunk release. Thx.
Ray
04-09-2007, 05:10 PM
#18
Originally Posted by mleuba' post='411261' date='Apr 7 2007, 10:04 PM
Hi All,
I read the manual regarding Dynamic Traction Control (p84) I don't know how many times but I am still not 100% sure I understand what it does. Seems like it bypasses Dynamic Stability Control, providing maximum power to the rear wheels in bad conditions like thick snow.
Is there something I am missing and other clarifications that you can provide?
Thanks!
Mark
I read the manual regarding Dynamic Traction Control (p84) I don't know how many times but I am still not 100% sure I understand what it does. Seems like it bypasses Dynamic Stability Control, providing maximum power to the rear wheels in bad conditions like thick snow.
Is there something I am missing and other clarifications that you can provide?
Thanks!
Mark
ADB works like an electronic version of a limited slip differential. Since we have an open differential, power goes to the wheel with the least resistance. ADB works in a way where if it senses a drive wheel slipping, it applies braking to that wheel - thus increasing resistance to that wheel and diverting power to the other wheel. So, even with DSC disabled, a quick start could result in some type of "traction control" although power from the motor is not cut (unlike DSC). ADB will not attempt to correct any type of slide - it will only correct traction on the back wheels.
If you push and hold the button for 3 seconds, both the triangle light and a yellow "BRAKE" light will illuminate indicating that all traction control devices have been disabled. Now the car/wheels will spin without any type of automatic interference.
To re-set any systems, simply push the button for 1 second no matter what level of "disabling" you were at. All systems will be re-engaged and yellow lights will go off.
With all this being said, I'm not sure how it works on Xi models.
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