The OBC that measures mileage on my 2009 335I (and then uses that to measure miles to empty) has gone crazy. Is there a way of resetting, or is it a problem that must be fixed at BMW repair.
All of a sudden, the display that indicates the mileage I am getting as well as the miles to
empty has gone crazy - says I am getting 75 MPG. Is there a way of resetting?
The chicken soup answer is disconnect the battery for about a half hour. That will clear the ECU and reset it. HOWEVER! You will need the radio code. And you may just get the anti theft system excited or confused. I call it the Chicken Soup approach because it couldn't hurt. Most of the time.
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