Originally Posted by X-cellent

While on bimmerfest you suggest you know about battery related issues, have you checked the battery??...without the basic info on the X it's hard to guess, but I had similar issues but only had 8,000m so it was a bad battery in the end....if you've got 200k on the X then it could be transfer case, if it's an 08 it could be transfer case....need more details otherwise we are all just guessing here....