One problem related to engine shut off without warning has been reported for the 2011 BMW 535. The most recently reported issues are listed below.
Drivetrain malfunction -driving on hwy when error was displayed and car shutdown in on me and would not start back up -dealership stated they replaced the fuel pump -issue happened again -while driving - under 3000 miles later - same error codes of low pressure - car hesitant to crank and studdering on low speeds- towed to dealer was told no issue found and they reprogrammed the fuel pump -same issue again - fuel line and sensor replaced -ran fine for another 1000 miles or so -while driving the car jerked really hard and gave the same drivetran malfunction error --was able to make it to the dealership however car would not drive at full speed- same codes seen stored -- BMW do not know whats causing the issue however replacing parts hoping it will fix the issue and charging me for their trial and error. -since 2 more parts replaced car now with new error and of course BMW has no clue but want to charge me another 1000 to replace another part.