As I was driving my BMW X5 I stopped at a red light and once the light turned green I begin to press the accelerator to move it didn't move and it made a loud rowing noise. U was then stuck in the middle of the hwy with moving traffic. I took it to the mechanic shop and they said it was the transfer case. He then said he see alot of them like that being worked on because of this problem.

- Franklinton, LA, USA

No event necessary leading up to failure air strut failed which causes a significant steering and handling problem because the computer thinks the car is in a possible roll, and begins to compensate by automatically braking. I have replaced three air struts - all in the front over the past two years. The cost is approximately $2,000 per. The air strut option was not on very many BMW X5 autos - but they are a serious problem when they fail. The dealer replace the first one - and would not let me drive the vehicle because it could be "dangerous".

- Surfside, CA, USA