750li performances on 2007 BMW 750Li

i have had my 750li for two weeks now. when i purchased the vehicle it drove fine. now it has a lack of power sometimes when it takes off. can someone give me any suggestions to what the problem may be concerning its performance?

by in Newport News, VA on May 22, 2010
4 answers
ANSWER by on May 22, 2010
don't buy cheep gas
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ANSWER by on May 26, 2010
Would you describe your driving as soft and easy or aggresive and fast? If you soft pedal this car all the time the computer thinks that is what you want all the time. You have to drive briskly every once in a while to keep the computer from slowing you down.
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ANSWER by on February 21, 2011
This vehicle is very picky with the gas that you use in it. I would only use Super from either Chevron, Shell or QT gas stations. Most other fuels do not have the correct conditioners etc to run properly. I made the mistake of running fuel from Costco for a while when I first purchased mine and had decreased power and pinging in my engine. Took it into the local BMW dealer and was told to only use the fuels I listed above. I changed over and have not had an issue since.
ANSWER by on August 10, 2011
I had the same problem. was bad gas. Fill up with premium gas and add an octane booster from your local auto parts house. a good quality booster is about $10.