re electronic odometer in article c fp b co megatest com alung megatest com aaron lung writes if i m not mistaken altering the odometer is illegal furthermore i surmise it ll be tough to alter bmw s odometer if you got at it some of the newer bmw s have electronic odometers making it even more tamperproof on the cars mentioned series from the late s the electronic odometer is really a mechanical drum type odometer that is driven by pulses from a speed sensor on the rear axle these pulses are converted into mechanical pulses that turn the odometer and speedometer no way changing or erasing an eprom is going to change the mileage reading it also means the odometer is just as easy or hard to change as any other mechanical odometer on the other hand it is a bit easier to disconnect the speed sensor and run the car with no speedometer or odometer reading a simple switch will do the job it also will disable the speed limiter which will enable the car to reach it s full speed alan l peterman hm work al qiclab scn rain com it s odd how as i get older the days are longer but the years are shorter
