One problem related to car stall has been reported for the 2011 BMW 550. The most recently reported issues are listed below.
The contact owns a 2011 BMW 550i. The contact stated that the vehicle experienced a sudden loss of power and stalled without warning. The vehicle was towed to a dealer (global imports BMW, 500 interstate n pkwy, atlanta, GA 30339, (800) 294-1853) where it was diagnosed that the timing chain was faulty and needed to be replaced. The manufacturer was notified. The vehicle was not repaired. The dealer and the manufacturer indicated that there was no recall to provide a solution. The approximate failure mileage was 60,000.