You can't turn 4x4 off, you can just change the traction control intervention point.

The lights came on due to abuse. The abs system was trying to intervene. The vehicle isn't designed for drifting.

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2007 X3 3.0si, 6 MT, Premium, White

Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue