HI everyone. I am new to the site. I am just wondering could anybody help me with a problem I have with a 2006 730LD that I have just purchased. After about 30 to 45minutes of driving I have no power when I try to kick down at 50mph. The power builds up very slowly. I have had the car back to the dealer twice for 3 days each time. They tell me it was an mass air flow meter and have sorted it for me, but to my disappointment after them having the car for so long, problem not sorted. Any help appreciated.