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      10-16-2011, 04:25 PM   #5
Lotus7
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Quote:
Originally Posted by juddholland View Post
Holding the DSC button on the driving control panel turns off everything. That should never be off unless you're on a track.
Pressing the DSC button once will activate what BMW calls DTC Dynamic Traction Control. Pressing it and holding it for a full 10 seconds will turn off all traction control.

The partial "de-activation" (DTC mode) may be necessary, but as BMW suggests "Use Caution". As Judd says, full de-activation is something for the track or skilled drivers. However, remember, for most of the last 100 years of automobile history, no cars had stability control, and most "sane" drivers who monitored their tire pressures and used reasonable judgment while driving did just fine. The X3 is the only vehicle (of several) I drive that has stability control, and I haven't spun or rolled a vehicle this week.

BMW suggests using that the DTC mode is useful for some severely limited traction situations like deep snow and is necessary when trying to rock the vehicle if several tires are on ice. Under severely limited conditions, as soon as the full stability control senses a little wheel spin, the system will throttle back the engine and apply the brakes. You will not move. Under those conditions, a limited amount of wheel spin MUST be allowed or you won't go anywhere.

See the Owner's manual (pp. 86 in the 2011 issue)
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Last edited by Lotus7; 10-16-2011 at 04:44 PM..
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