What is the fix for receiving Fuel Pump message in display screen.

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My 2009 535i xDrive with 91,000 miles lost engining power while driving on the highway doing about 75 MPH. I was getting ready to excelerate and make a lane change to the fast lane. Fuel Pump message Displayed in navigation window. I had to pull of the road with no power what so ever. Car shut off. It started after 20 to 30 mins. I brought car to BMW dealer for Diagnosis and they provided fault codes 006292 and 006293. They said Low Preasure Pump needed to be replaced. I replaced the Low Presure Fuel Pump, Fuel Filter and Low Preasure Sensor. Exact same thing happened. On two different occasions. What could be the problem?