After a drive from Denver to Breckenridge on snowy roads the car was parked in an unplowed parking space. When the car was moved 1 hr later the car had no ABS--flashing on dash, no traction control--flashing on dash and steering was ineffective. Car was only drivable by backing into a space. 20 hrs later the car was to be moved again...again, everything flashed on dash...no ABS, no traction control, drive train failure and car just slid. Steering was totally ineffective. Car was pushed by people on both sides until dry pavement was reached. Car was restarted and I resumed driving on dry pavement back to Denver. Had car "read" by my mechanic and then again by a BMW certified mechanic. No codes were available! The speculation was that my wheel sensors froze. If my Xdrive can't be driven in snow, what's going on. There were two drivers involved in this and both of us reported a total lack of control of the vehicle.

- Centennial, CO, USA

OEM wheels had been taken off for winter and stored outside under cover. They had been fine when taken off. When put back on, one was found to have low pressure. It was pumped to proper inflation. The next day while driving, the low pressure warning went off. The wheel was checked and ~1" crack was found from the inboard outer edge of the rim toward the center. Rim is a 17"x7.5 BMW alloy wheel that came with the car. There was no damage to the tire, which had been put on about 7000 miles earlier. Wheel had about 120000 miles. Safety concern is from unexpected loss of air pressure putting tire at risk of excessive wear and failure.

- Lake City , CO, USA

When turning left or right, the power to the wheels is not engaged. However, when the tire is straight, the power engages. This action prevents you from driving normally. To drive, you have to straighten out the wheel straight. Then as you increase velocity, you make your turn. Can be very unsafe as you are driving if this happens (breaks) on the road.

- Portland, OR, USA