What is a mileage check?
A mileage check is the process of verifying the kilometres or miles a vehicle has actually travelled. In the UK it involves comparing the odometer reading on the car with independent records such as the DVLA registration data, MOT test history, service invoices and any documented mileage entries from previous keepers.
Doing this early in the buying process helps you spot “clocking” – the illegal practice of rolling back the odometer to make a car appear younger and cheaper.
Why mileage matters for used‑car buyers
Mileage is a key indicator of wear and tear. A car with 30,000 mi will generally have far less engine fatigue, brake wear and suspension stress than one with 120,000 mi, even if both are the same make and model. Accurate mileage also affects insurance premiums, road tax, and resale value.
Incorrect mileage can lead to unexpected repair costs. If the odometer has been tampered with, you may inherit hidden problems that the seller never disclosed.
Common ways mileage is altered
- Manual rollback of analogue odometers.
- Electronic re‑programming of digital displays.
- Replacing the instrument cluster without updating the recorded mileage.
How to perform a reliable mileage check
1. Compare the current odometer reading
Note the exact figure displayed on the dashboard. Write it down and photograph it for reference.
2. Check the DVLA registration data
The DVLA keeps a record of the mileage declared at the time of each change of keeper. You can request this information via a standard vehicle enquiry or a paid check on motorpeek.com.
3. Review the MOT history
Each MOT test records the mileage at the time of the test. The UK government’s MOT history service shows a chronological list of readings. A sudden drop or inconsistent pattern is a red flag.
4. Examine service and repair invoices
Legitimate garages always note the mileage when work is carried out. Compare these figures with the odometer and MOT data. Gaps of several thousand miles between entries may indicate tampering.
5. Ask the seller for a mileage declaration
Under the Consumer Rights Act, a seller must provide accurate information. A written statement confirming the current mileage, together with any supporting documents, adds an extra layer of protection.
Red flags to watch for
- Large jumps in mileage between MOT tests (e.g., 20,000 mi to 70,000 mi in a year).
- Service records that stop abruptly several years before the sale.
- Discrepancies between the odometer and the mileage shown on the V5C registration document.
- Seller unwilling or unable to provide any paperwork.
What motorpeek.com can do for you
Our comprehensive vehicle history check pulls together DVLA registration data, MOT records, insurance write‑off categories, PNC stolen markers, finance alerts and more. By entering the registration number on motorpeek.com you get a single, easy‑to‑read report that highlights any mileage inconsistencies alongside other vital safety checks.
Remember, a mileage check is just one part of a full due‑diligence process. Combine it with a visual inspection, a test drive and a review of finance status to make a confident purchase.
Frequently asked questions
How can I tell if a car's mileage has been tampered with?
Look for sudden jumps or drops in the mileage recorded on MOT certificates, service invoices and DVLA data. Inconsistent figures, missing service records or a seller who cannot provide paperwork are strong indicators of possible clocking.
Does the MOT test record the mileage?
Yes. Every MOT test in the UK records the mileage at the time of the test. You can view the full MOT history online and compare each reading to the current odometer reading to spot anomalies.
Can a mileage check reveal outstanding finance?
A mileage check itself does not show finance status, but a full vehicle history report from motorpeek.com includes finance alerts. Combining mileage verification with a finance check ensures you are not buying a car that is still under a loan.