Quote Originally Posted by BlueBimmer
im not sure on others but the digital odos on bimmers can be manipulated thru DME tampering, speed sensor or even changing out the whole gauge cluster.

USDM bimmers have four places where the mileage is stored so its next to impossible to tamper the mileage, not to mention, it is a criminal offense to do it in the US.

Anyway - there was a heated debate regarding this on e46fanatics forum (bmw forum). Here's the link:

click here