Door Latch problems of the 2007 BMW 335

The central locking system failed and only the driver door could be open from the inside. My wife was traveling with my newborn baby in the back seat and could not get outside the car, because the remaining (three) doors could not be opened from the inside neither from the car's outside handles. I reach for my newborn baby boy from the driver's seat and my wife had to exit through the rear window, because she could not make it through the center console. This had happened twice during last month, and could be worse if an elderly person or handicap person could not exit through the rear window. And it could get much worse with heavy sun and you have to turn off the engine because the fuel door also gets locked, so the car cannot be refueled. This locking system is a very bad design because if it fails, the mechanical levers gets disconnected and nobody can open the door from the car's inside handles neither outsides.