Clocked car check: how to spot mileage fraud before you buy
5 September 2026·5 min read
What clocking is and why it costs you
Clocking means turning back the odometer so a car looks less used than it is. Lower miles mean a higher price, so a car showing 60,000 miles that has actually covered 120,000 can be overpriced by thousands.
The money is only half of it. A car with twice the miles it claims has twice the wear on brakes, suspension, belts and clutches, and its service schedule is fiction. Parts fail early because they were due a replacement the history says never came.
The free check that catches most of it
Every MOT records the odometer reading, and the full history is free to look up by registration. Read the readings oldest to newest and look for the number going down, sitting flat across years of supposed driving, or jumping in a way the gaps cannot explain.
One odd reading can be a tester typo, so look for a pattern rather than a single digit. Two drops, or a car that covers 15,000 miles a year and then suddenly zero, is the history telling you something.
Warning signs beyond the numbers
Mileage should match the wear you can see. A shiny low-mileage car with a polished-smooth steering wheel, worn pedal rubbers, sagging seats and stone-chipped everything is wearing its real miles on its surfaces.
Paperwork should agree too. Service stamps, old MOT printouts and receipts each carry a mileage and a date. When those tell a different story from the dashboard, believe the paper.
- Odometer drops or flatlines between MOTs
- Heavy wear on pedals, wheel, seats and carpets against low miles
- Service history with gaps or mileages that disagree
- Several owners in quick succession with no explanation
What to do if the miles do not add up
The safest move is to walk away. There are plenty of cars with clean, consistent histories, and a clocked one starts every negotiation with a lie. If the car is otherwise perfect, price in a professional inspection and let the seller explain the readings in writing first.
Deliberately altering mileage to deceive a buyer is fraud. If you have evidence, you can report it to Action Fraud and to Trading Standards, and the MOT history printout is your starting exhibit.