If the battery on a 2005/5 x5 is removed or go's flat could it change the mileage / speedo reading.
Shouldn't change the odometer or the speedometer, but it will clear out your memory such as the MPG and trip odometer and maybe the radio presets.
Tom is correct, battery removal won't affect the odometer.
That would be a dream come true for most used car salesman
Tom, yes it would!
Looking for a Used X5 in your area?
CarGurus has 16,995 nationwide X5 listings starting at $1,999.
Search BMW X5 Questions
BMW X5 Experts