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How to spot mileage fraud on a used BMW

Winding back an odometer is quick, cheap and one of the most common frauds on the used market. It can add thousands to a car's apparent value. The good news: with the VIN and the service history, it is also one of the easiest frauds to catch.

How the fraud works

A tampered odometer shows fewer miles than the car has really covered, making it look younger and worth more. On a digital dashboard this can be done in minutes with the right tool.

The display alone cannot be trusted. What you need is an independent record of the mileage over time, which is exactly what the service history provides.

The tell-tale signs

The service history records the mileage at each visit. Compare it with the odometer today and look for:

  • ·A current reading lower than a mileage recorded at a past service. This is physically impossible without tampering.
  • ·Mileage that barely moves between two distant dates, then jumps, or vice versa.
  • ·A history that suddenly stops, then resumes with implausibly low mileage.

Back it up with physical clues

Numbers aside, check that wear matches the claimed mileage: pedals, steering wheel, seat bolsters and gear knob. Heavy wear on a supposedly low-mileage car is a red flag.

When the service history and the physical condition both line up with the displayed mileage, you can buy with far more confidence.

Frequently asked questions

Can mileage fraud really be hidden on a modern car?+

The dashboard can be altered, but the mileage recorded at each service against the VIN is much harder to change everywhere. Comparing the two is how the fraud is exposed.

What is the clearest sign of a wound-back odometer?+

A displayed mileage that is lower than a figure recorded at an earlier service. Mileage can only increase, so any drop means tampering.

Check the real mileage

Use the VIN and recorded service history to confirm a used BMW's mileage before you buy.

Decode a VIN