How to check a car’s mileage
When you type "how to check mileage" into Google you probably want a clear, step‑by‑step answer that works for any used car on the road today. The short answer is: combine the odometer reading you see on the vehicle with the official MOT and service records, then look for any signs of tampering or inconsistencies. Below is a practical UK‑focused guide that shows you exactly what to inspect, where to find reliable data and how to spot common tricks such as clocking.
Why mileage matters
Mileage is a key indicator of a car’s wear and tear. A vehicle with 80,000 miles will generally have more engine, suspension and interior wear than one with 20,000 miles, even if both are the same model and age. However, mileage can be mis‑reported, either accidentally or deliberately, so you need to verify it before you commit to a purchase.
Step 1 – Read the odometer
Start by noting the mileage displayed on the dashboard. Modern digital odometers are harder to roll back than older analogue ones, but they are not immune to manipulation. Write the figure down exactly as it appears, including any decimal places (e.g., 45,321.0 miles).
Step 2 – Check the MOT history
The UK government provides a free MOT history service at gov.uk/check-mot-history. Enter the registration number and you will see every MOT test since the car was first registered, together with the recorded mileage at each test. Compare these figures with the odometer reading you noted:
- If the current reading is lower than the most recent MOT mileage, the odometer has been rolled back.
- If the mileage jumps dramatically between tests (for example, from 30,000 to 70,000 miles in a single year), investigate further – it could be a genuine increase or a sign of tampering.
Record the mileage trend; a steady, realistic increase (roughly 10,000–12,000 miles per year for a typical private car) is a good sign.
Step 3 – Review the service book
A legitimate service book should list every service appointment, the date, mileage at the time and the work carried out. Look for:
- Consistent mileage entries that match the MOT figures.
- Stamps or signatures from authorised garages.
- Any large gaps in the record – a missing service could hide mileage manipulation.
If the seller cannot produce a service book, ask for receipts or invoices from the garage. Many garages now email electronic service records, which can be cross‑checked with the MOT data.
Step 4 – Use a vehicle‑history check
While MOT and service records are valuable, a full vehicle‑history check gives you a broader picture. Sites like motorpeek.com collate data from the DVLA, DVSA, insurance write‑off registers and finance databases. When you run a check you will see:
- The recorded mileage at the time of the last MOT and any subsequent updates.
- Whether the vehicle has ever been reported as a write‑off (Category A, B, S or N).
- Any outstanding finance that could affect ownership.
Running a check on motorpeek.com is quick, inexpensive and gives you a single source of truth to compare against the odometer.
Step 5 – Look for physical signs of clocking
Even with paperwork, a determined fraudster may have altered the odometer. Inspect the interior for clues:
- Wear on the pedals, steering wheel and gear‑lever that seems out of step with the displayed mileage.
- Dashboard wear – scratches or faded lettering that suggest the instrument cluster has been removed.
- Service stickers on the windscreen that show mileage; they should align with the odometer reading.
If anything looks unusually new for the age of the car, ask the seller for an explanation.
Step 6 – Verify the registration details
Finally, confirm that the registration number you are checking matches the vehicle you are viewing. A simple mistake – or a deliberate switch of plates – can invalidate all the data you have gathered. Use the DVLA’s online vehicle enquiry service or a trusted check‑site to ensure the VIN (Vehicle Identification Number) and registration match.
Putting it all together
When you have compared the odometer, MOT history, service records and any physical signs, you should have a clear picture of the true mileage. If the numbers line up and there are no red flags, you can proceed with confidence. If you spot inconsistencies, negotiate a lower price or walk away – mileage fraud is a common reason for used‑car disputes.
Remember, the most reliable way to confirm mileage is to cross‑reference multiple sources. A single MOT record can be useful, but combining it with service books, physical inspection and a full vehicle‑history check gives you the strongest defence against clocking.
Ready to take the next step? You can check the vehicle’s registration on motorpeek.com for a complete history, including mileage, MOT results and any hidden issues.