Read the MOT mileage record
Start with the MOT history. Every MOT test records the odometer reading, so the record builds a timeline of the car's mileage. Computerised records go back to 2005, so most cars will have plenty to compare.
A drop between two readings is the classic sign of clocking. A car's mileage should only ever go up. If a later test shows fewer miles than an earlier one, ask the seller to explain it, and treat that as a serious warning.
Check the pace. The average car in the UK covers about 7,100 miles a year, so compare the miles between tests with the time between them. A jump far above that, or a long gap with no test, is worth asking about. Check the other evidence too: wear on the pedals and steering wheel, service stamps, and the V5C.
See every reading in one place with our free mileage check.
Check the car matches its miles
Start with the MOT history. If the mileage ever drops between tests, walk away. Then check the wear matches the odometer. A car that has covered lots of miles should look and feel like it. Touch the points you use most: the driver's seat bolster, the steering wheel rim, the pedal rubbers and the gear knob. If they look barely used on a high-mileage car, ask why.
Check the service history too. Stamps and invoices should match the odometer. Each one should show a garage name, a date and a mileage that rises over time. Gaps, out-of-order stamps or a mileage that doesn't fit the dial are reasons to ask questions. Ask for the invoices and keep copies.
Last, check the paperwork. The name and address on the V5C should match the seller's ID, and the VIN should match the windscreen, door pillar and V5C. Run your free mileage check to see every MOT reading in one place.
What to do if the numbers don't add up
If the mileage doesn't add up, don't hand over any money until the seller explains it. Ask them why it changed and for proof: old MOT certificates, service receipts with dates and mileage, and the V5C. Check that the name and address on the V5C match the seller's ID, and that the VIN matches the car.
Walk away if the story changes, the paperwork is missing or they won't let you check the car. A mileage drop between MOTs is the classic sign of clocking, and selling a car without declaring that the mileage is wrong is an offence. A seller who won't put the mileage in writing is telling you something.
- Check every MOT reading yourself with our free mileage check
- Compare the wear on the pedals, steering wheel and seats with the mileage
- Get a written answer before you agree a price