Transfer Case Motor Actuator Fits for 2006-2013 BM-W E60 E90 E92 525xi 535xi 530xi 325xi 330xi xDrive with ATC300 Tansfer Case - This Transfer Case Motor Actuator is suitable for 2006-2013 BM-W E60 E90 E92 525xi 535xi 530xi 325xi 330xi xDrive with ATC300 Tansfer Case. It controls the switching of your vehicle in and out of 4x4 mode. Regular use of your 4 wheel drive vehicle to navigate deep puddles or bodies of water may lead to moisture and corrosion accumulation. The most common cause of failure is faulty or incorrect wiring