I purchased 2013 vehicle 3 months ago. i have taken vehicle in for repairs w same error 4xs - error "drivetrain - vehicle can not be restarted" i have been on freeway and on street when error has occurred. wjen this error occurs vehicles electrical components no longer work. vehicle can still be driven but with caution. i am very concerned and cannot take long trips away from bmw service locations since this error appears without warning. bmw dealer kept vehicle for more than 7 days last repairs, however i still have error appearing and vehicle is still not repaired. dealer nonchalant since warranty is still in place -- i believe they are ignoring as not to relate drive transmission. tomorrow i have no vehicle since car won't start. contacted dealer to come and deliver rental vehicle. i have to work! error appears when vehicle is in motion always. i am concerned with my safety - not sure what else will take place while vehicle is in motion. today weather was 112 and no air conditioning for 40 miles. i need vehicle repaired as to pass emissions as well as for my safety!!!