What Odometer means for you
A typical UK car covers about 7,100 miles a year, so a mileage reading should roughly match the car's age and history. The best check is the MOT history: mileage is recorded at every MOT test, and a drop between tests is the classic sign of clocking. GetFreeCarCheck's free check shows that history and flags clocking warnings.
If the mileage looks wrong, ask the seller to explain and check the service book and receipts. Selling a car without declaring that its mileage is wrong is an offence. Treat an unexplained gap with caution, and walk away from anything you can't verify.