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Old 12-22-2008, 12:04 PM
Corgidog Corgidog is offline
Officially Welcomed to the 'Fest
Location: New Jersey
Join Date: Sep 2008
Posts: 558
Mein Auto: 2009 535 XDrive
I also have an 09 535 X drive and had similar questions when I read the owner's manual. My take is to set to DTC when your wheels are spinning in snow and to use DSC when you want to disable the system which would affect traction. If I drive normally on lightly snow covered roads my guess is not to use DTC but I could be all wrong.
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