2003 MINI Cooper drivetrain & axles problems

Mini cooper 2003 CVT stalls in slow traffic or starting from stop light. The check engine light goes on; however, the engine shuts off. In addition, it has happened twice in a month considering that the vehicle is only a month old. Also, the CVT transmission is very jerky and could surge on an occasional basis. Informed that it's a software problem and no repair is needed at this point. I think it is a serious safety issue.

We have a mini cooper coupe 2003 with only 30,000 miles on it in mint condition where the belt for CVT transmission disintegrated without any warning leaving me stranded in the middle of a busy highway and placing me at risk for injury. We had provided good maintenance for the mini by changing the transmission oil when we first purchased the vehicle at 8000.00 miles and then at 15000 miles with high grade synthetic oil at $100.00.