With DSC on, the system will reduce the engine power output to avoid drifting. However, if you are in offroading and get stuck, you will need more engine power to get out of the stuck. DSC will reduce the power so that you have not enough power to get out of the stuck. The x-drive and ABS and other system will work as normal when you turn off DSC, so the wheel(s) which lose traction will be locked itself to avoid power lose.

Jobaker4, I also use my X to go offroading frequently. Although My x dosen't have X-drive, I found that my X handled tough road quite well. It will much better if the ground clearance can be adjusted to 230mm (9 inches). I suggest that you should install the underride protection to protect your x's underbody from damaging your engine under cover or other parts by bottoming out since the x's ground clearance is somewhat not enough. The part number is 51130392164. If you frequently use your x for offroading, I think it is worth to install it.

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--2004 E53 X5 4.8is - ECE version; right hand drive; Located in Hong Kong; ext. black sapphire metallic; int. leather black; adaptive dynamic bi-xenon headlights; 16:9 onboard monitor w/o navigation; 20" genuine BMW Y-spoke 214 wheels with Bridgestone Dueler H/P Sport tires; Int. rear view mirror w/ compass.