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Thread: Speedometer issues M240xi

  1. #1
    Join Date
    Apr 2018
    Location
    Chicago
    Posts
    1
    My Cars
    2017 M240xi Convertible

    Speedometer issues M240xi

    Has anyone had accuracy issues with their speedometer? Mine registers about 5% more that actual. Dealer says this is normal & they said the BMW variance tolerance is 10%! Seriously? A $60k finely tuned sport machine and I have to do a mental calc to determine how fast I'm going? What about the odometer? Is it registering 5% more miles as well?

  2. #2
    Join Date
    Jul 2011
    Location
    Arlington, VA
    Posts
    5,476
    My Cars
    2018 BMW M240i
    I checked the accuracy of the speedo in my M240i last month. I was driving on a relatively deserted road in southern Virginia. I used the Speed app on my iPhone to check the speedo’s accuracy. At an indicated speed of 65mph the Speed app showed I was driving at a speed of 64mph.

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