Piston Slap: Hacking the Unrollable Odometer?

Brian writes:

I had a conversation with someone the other day who claimed his mechanic rolled back the odometer on his car. This is a late-model car with a digital odometer. I always thought digital odometers were protected from this, but a quick Google search reveals that it’s actually quite common and easy to roll back a digital odometer. I guess this is now something a buyer has to worry about on top of everything else when buying a used car.

For example, how could you ever tell a car was rolled back — say, 10,000 miles — when the car is legitimately in good condition?

What are your thoughts on this? And how can a buyer protect themselves?

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Lawsuit Claims Ferrari Approved Odometer Rollbacks

Former Ferrari salesman Robert “Bud” Root is suing Ferrari of Palm Beach for wrongful dismissal, alleging the dealer fired him after he discovered that a Ferrari DEIS tool was being used to roll back odometers. He also claims discrimination due to his old age.

Root’s claim states that Ferrari’s Italian headquarters has been producing and distributing these devices to dealerships worldwide. It also says that Ferrari must give authorization every time one of the tools is used — a potentially damaging allegation for the supercar manufacturer.

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