TL* THE CONTACT OWNS A 2008 BMW 535XI. WHILE DRIVING APPROXIMATELY 65 MPH, THE ACCELERATOR PEDAL WAS ENGAGED AND THE ENGINE BEGAN TO SPUTTER WITH AN EXTENSIVE REDUCTION IN POWER. THE CONTACT CONTINUED WITH CAUTION AND THE VEHICLE WAS TAKEN TO A DEALER WHERE THEY REPLACED THE FUEL PRESSURE SENSOR, SPARK PLUGS AND PERFORMED AN OIL CHANGE. THE FAILURE PERSISTED. THE VEHICLE WAS TAKEN TO THE DEALER THREE TIMES IN WHICH THERE WERE NO RESOLUTIONS. THE HIGH PRESSURE PUMP WAS REPLACED ON A DIFFERENT OCCASION. IN ADDITION, WHEN ENCOUNTERING A BUMP IN THE ROAD AND DOWN-SHIFTING FROM THIRD TO SECOND GEAR, AN ABNORMAL CLICKING NOISE WOULD OCCUR. RECENTLY, THE ENGINE WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS IN THE PROCESS OF BEING DIAGNOSED. THE FAILURE MILEAGE WAS APPROXIMATELY 45,000. UPDATED 01/28/11 *BF UPDATED 02/07/11