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Odometer Fraud: How to Spot a Clocked Car Before You Buy

An estimated one in five imported used cars sold in Greece has fake mileage. What to check before you buy, what the new ΜΕΜΟ register changes, and how to prove your own car's history.

By MyServiceBook 7 min read

You’ve found a used car with low mileage and a good price. There’s one question that matters: is that mileage real?

The problem isn’t theoretical. According to estimates reported by Kathimerini in May 2026, one in five imported used cars sold in Greece has a tampered odometer. In September, the head of the Heraklion car dealers’ association described a Renault Mégane he bought as a 120,000 km car. The dealership found it had actually covered around 370,000 km.

Below you’ll find what to check before you buy, what changes this year for imported cars, and what to do if you’re the one selling.

Why imported cars are the bigger risk

When a car spends its whole life in one country, its mileage is recorded at inspections, services, and changes of ownership. When it crosses a border, that data usually doesn’t travel with it.

  • carVertical analysed millions of history reports across 18 European countries and found imported cars are 2.2 times more likely to have rolled-back mileage than local ones (5.8% vs 2.7%).
  • Greek dealers say the biggest problem is cars coming from Bulgaria, where the odometer is altered before import.
  • According to the Association of Car Importers-Representatives (ΣΕΑΑ), when a car is invoiced abroad and cleared through customs in the buyer’s name, the buyer often has nowhere to turn if they discover the fraud later.

What the ΜΕΜΟ register changes

Under a 2026 Ministry of Transport bill, imported used vehicles must be electronically filed in the Imported Used Vehicle Register (ΜΕΜΟ) before Greek plates are issued. If the importer doesn’t upload the Certificate of Conformity and the roadworthiness certificate from the country of origin, the registration can’t be completed.

It’s a step in the right direction, but it has a limit: if the mileage was rolled back before the car entered the country, the register records the already-tampered reading. ΜΕΜΟ makes paperwork fraud harder; it doesn’t rule it out.

How to tell if an odometer has been tampered with

No single check is proof. Together, they give you a clear picture.

1. Ask for the service book and invoices

Dealers themselves give this advice: ask for the complete history, so the odometer reading can be cross-checked against the maintenance record and earlier inspections. Look at:

  • Whether the mileage rises steadily from visit to visit. An entry lower than the one before it is the clearest warning sign.
  • Whether the pace makes sense. 5,000 km in two years and then 40,000 in one isn’t necessarily fraud, but it needs an explanation.
  • Whether all the stamps look like they were added on the same day, with the same pen and the same handwriting.
  • Whether pages are missing or there are long gaps in time.
  • Whether the workshop invoices (which usually show mileage) match the book.

2. Cross-check with roadworthiness inspections (ΚΤΕΟ)

The Greek inspection certificate records the odometer reading, and when ΚΤΕΟ finds a lower reading than at the previous inspection, it notes this on the certificate. Ask to see the certificates from recent inspections. For an imported car, also ask for the inspection report from the country of origin, which now has to be filed in ΜΕΜΟ.

Remember the limit: ΚΤΕΟ only compares inspections carried out in Greece. An odometer rolled back before import won’t show up here.

3. Compare the wear with the mileage

An 80,000 km car doesn’t usually have a polished steering wheel, a worn gear knob, pedal rubbers worn smooth, or a torn bolster on the driver’s seat. Wear can’t be measured precisely, but a big mismatch is a reason to dig deeper.

4. Take it to a dealership or a workshop with diagnostics

On many modern cars, mileage is also stored in control units other than the instrument cluster. A diagnostic check, especially at the brand’s dealership, which also holds its network’s service history, can reveal inconsistencies. That’s how the Mégane in the example above was caught.

5. Watch the price

Dealers put it bluntly: an imported car selling for less than the average price in the country it came from, even though the seller paid for transport and registration, is a red flag.

6. For imported cars, check the VIN

Some services use the chassis number (VIN) to gather mileage records from several countries. Their data isn’t always complete, but for an imported car it’s worth the cost.

What about AADE’s digital client register?

Greek workshops log every vehicle they receive in AADE’s Ψηφιακό Πελατολόγιο (digital client register), and the tax authority uses it to target audits: by early July 2026 it had carried out 1,145 checks on businesses in the automotive and transport sectors and found violations at 693 of them, or 60.5%.

For a buyer, though, it doesn’t solve the problem. The register is a tax-enforcement tool: it doesn’t record mileage and it isn’t public. And the audit results themselves show the sector’s compliance is still low. The history that matters to a buyer is the one the seller can show them.

If you’re selling: don’t say “full service history”, prove it

On the other side of the problem is the honest seller. Buyers have read the same numbers you have, and they don’t trust “always serviced at the dealer”. A few photos of a paper service book in a listing won’t convince them.

With MyServiceBook you turn your paper service book into a digital history in three steps:

  1. Photograph the pages of the book. The app reads each visit with its date, mileage, and work done.
  2. The app checks the readings. It flags mileage that goes down or rises at an implausible pace, and pages that show signs of tampering, so you see them before a buyer does.
  3. Send the buyer a link or a QR code. They see the full history on their phone without downloading anything. Your mechanic adds future services by scanning the QR code, with no account needed.

A history doesn’t replace a mechanic’s inspection, but it answers the first question every buyer will ask before they ask it.

If the seller keeps the car’s history in MyServiceBook, ask for the link before you arrange a viewing. Compare the mileage in the history with the odometer, the inspection certificates, and the wear. If they don’t have one, the checklist above is where to start.

Frequently asked questions

How can I tell if a car has had its mileage rolled back?

Cross-check the odometer against the service book, invoices, and inspection certificates, compare the wear with the mileage, and ask for a diagnostic check, ideally at the dealership. For an imported car, check the VIN as well.

Does the Greek ΚΤΕΟ inspection catch tampered odometers?

Only if the reading is lower than at a previous inspection in Greece, in which case it’s noted on the inspection certificate. If the mileage was rolled back before import, ΚΤΕΟ has nothing to compare it with.

What is ΜΕΜΟ?

Greece’s Imported Used Vehicle Register. Under a 2026 bill, importers must electronically file the Certificate of Conformity and the roadworthiness certificate from the country of origin before Greek plates are issued.

How do I prove my car’s mileage is genuine?

Keep the complete service history with dates and mileage, along with invoices and inspection certificates. With MyServiceBook you photograph it once and send it to a buyer as a link or QR code.

Sources

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