Then explain the results. It does makes sense, trying to turn a locked AWD/4WD at low speed is not fun. Maybe the AWD has an algorithm where it must see ?10 revolutions of the rear tires, ? see less than 32 degrees outdoors? But today at 85 degrees and 0mph and rears only rotate 5 revoltions then it stays at 0% and the fronts did not move.
2007 328xi E92 Coupe // 6 MT-Crimson Red, Black Interior, Brushed Silver Trim//Sport Seats//BMW Perf. SW Alcantara//CF Roof, Front Lip, Trunk Lip Spoilers//18" 197, F-5mm, R-15mm Spacers//BMW CF Perf. Strut Brace//LUX H8 v3.0 AE//6k HID Fogs//BMW PE//Macht Schnell Intake Scoops//BMW EURO Intake//AA Tune//188AWHP-->196AWHP-->216AWHP Coming Soon-BOOST 2007 328xi E90 Sedan//Auto-White, Black Interior Wood Trim 'OEM Plus Look'//Commuter