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      01-09-2014, 03:48 PM   #1
MRV99
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DTC off, DSC on, Perfect for the snow

Correction..... Turn the DTC on not off. Sorry I get confused between the different BMW's I have had. I have edited the post to reflect my mistake...


In the Midwest we have had a good amount of snow and with it being very cold 0 to -20 before wind chill, the roads still have packed snow on them. I have to say the DTC much better compared to the standard DSC and is very obtrusive when driving in these conditions. Personally, I think it makes it very hard to drive because the slightest slippage, the computer is cutting power and hitting the breaks. Even with good snow tires, I am still finding this an issue. For those of you who agree with me, I have a suggestion.

Before I begin, I feel very comfortable drifting and do not get squeamish when a car squirrelly when driving. I spent many a snowy winters night when I was 16 out in the country driving crazy.

To make driving much easier, I will turn ON the DTC (one push of the traction button). By doing this, you DO NOT COMPLETELY turn off DSC Traction control. To do that, you have to hold the the Traction button for a few seconds before it is completely disabled. I find that this allows one to drive with a bit of throttle and have much better control of the X5 in the turn. If you start to get a bit more sideways than a small drift, you can feel the DSC kicking in and straightening you out. It does not cut all power which is a really good thing IMO. This also allows you to power through a turn and basically negate the DSC by using the throttle.

From a standstill, it is nice that it will allow for a bit of wheel spin if you want to be a bit more aggressive with the throttle. Personally, it used to drive me nuts when the power would be cut to nothing once a bit of wheel spin was detected.

For those of you who have not tried this, I would highly recommend giving it a shot. If you are really worried that the car will be out of control, hit a snow covered parking lot and see what it feels like. I am sure you will see that it make driving in the snow much easier.
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Last edited by MRV99; 01-10-2014 at 05:22 PM..
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      01-10-2014, 03:00 PM   #2
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Just tried this last night in a gi-normous parking lot at a ski area that had about a foot of fresh pow on top of packed pow. Loved it! I like a little controlled drift. Probably won't use this function on glaze or full on black ice, but packed snow, definitely. Fact is, I did not even know about this bifurcated functionality re the Traction Control. Must need to re-read my manual. Thanks for the tip.
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      01-10-2014, 04:56 PM   #3
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A couple points:
When you quick-press the DSC button once, it actually ENABLES DTC mode. DTC = dynamic traction control. Before that, you would have had NORMAL traction control. After pressing the button, you now have DYNAMIC traction control. Dynamic = allows more wheel spin.
DSC still keeps an eye on you, but lets you play more.

When you press and hold the DSC button for about 7 seconds, you effectively DISABLE dynamic stability control (DSC) completely. All bets are off here.

I wouldn't be driving with DTC ON all the time. IMHO, it is better to have full traction control (not dynamic) while moving, to prevent tail from sliding out, etc. But when there's a need to get out of deep snow (or sand beach), DTC should be ON to allow wheel spin.
I stopped once on soft sand beach. Started going and traction control stalled my engine. Remembered about DTC, pushed the button, press the gas and easily got out.

P.S. Half the youtube videos, where X5 gets stuck in snow or sand, the idiot owner does not push the DSC button to allow wheel spin. The other half - 20" summer wheels and tires.
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      01-10-2014, 05:23 PM   #4
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Serge1. Good catch!
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      01-10-2014, 05:54 PM   #5
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Using same method on my X5d. I love it!
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      01-12-2014, 04:13 PM   #6
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Are we talking X5Ms?
DTC can not be disabled all the way. Government mandated rollover protection keeps you from doing so.
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      01-12-2014, 04:47 PM   #7
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We are talking about non ///m x5's. The DCT is turned on which is a much sportier version or les obtrusive version of the DSC. You can completely disable DSC it by holding down the traction control
button for about 2-3 seconds. You will not feel any intervention by the car no matter how out of control you get.
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      01-12-2014, 05:01 PM   #8
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Quote:
Originally Posted by MRV99
We are talking about non ///m x5's. The DCT is turned on which is a much sportier version or les obtrusive version of the DSC. You can completely disable DSC it by holding down the traction control
button for about 2-3 seconds. You will not feel any intervention by the car no matter how out of control you get.
Thanks for the clarification. In Europe the X5Ms are the same way but big brother ruined it for us in the US. I'm trying to get a hold of a non US file to overcome that minor obstacle.
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