How to check a car’s mileage
The quickest answer to "where to check mileage on a car" is to start with the vehicle’s official records. The MOT test certificate, the DVLA logbook (V5C), and a reputable vehicle history check will all show the mileage that the seller has reported at different points in the car’s life.
First, look at the most recent MOT test certificate. The MOT result sheet, which you can view for free on the DVSA website, always lists the mileage recorded at the time of the test. Compare this figure with the mileage shown on the V5C and any service book entries. If the numbers line up, you have a solid baseline.
Official sources you can trust
In the UK there are three primary sources that record mileage:
- DVSA MOT history – searchable by registration on the official MOT history service. Each test shows the mileage at that date.
- DVLA V5C logbook – the keeper’s record includes the current odometer reading when the vehicle was last transferred.
- Service and repair invoices – reputable garages write the mileage on every invoice; a full service history can fill gaps between MOTs.
All three should be consistent. Any large jump – for example, a sudden increase of 30,000 miles between two MOTs – is a red flag that the odometer may have been tampered with (commonly called clocking).
Common red flags and what to look out for
Even with official records, some mileage discrepancies can slip through. Keep an eye on these warning signs:
- Unusual mileage spikes – a jump of more than 15,000 miles between consecutive MOTs is suspicious.
- Service stamps that don’t match the MOT – if a service book shows 50,000 miles but the MOT says 70,000, investigate further.
- Inconsistent wear and tear – a car with very low mileage but heavily worn pedals or seats may have been driven more than the log suggests.
When you spot a mismatch, ask the seller for original paperwork and consider a professional inspection. Remember that a vehicle history check can also reveal whether the car has been reported as a write‑off (Category A, B, S or N) which sometimes leads to odometer tampering to hide damage.
Using a vehicle history check
A comprehensive vehicle history check pulls together MOT data, DVLA records, insurance write‑off categories, PNC stolen markers, outstanding finance alerts, and mileage logs. It gives you a single report that highlights any irregularities and confirms whether the mileage reported by the seller aligns with the official record.
For UK used‑car buyers, the safest route is to run a check on the registration number before you finalise any purchase. You can check the vehicle’s registration on motorpeek.com to see a full mileage timeline alongside other crucial information such as previous keepers, finance status and any insurance write‑off history.
In summary, the best places to verify mileage are the MOT history, the V5C logbook, and a reputable vehicle history check. Cross‑reference these sources, watch for sudden mileage jumps, and always ask for original service documents. By doing so you protect yourself from clocked odometers and ensure you know exactly how far the car has really travelled.
Frequently asked questions
Can I rely solely on the MOT certificate for mileage verification?
The MOT certificate is a reliable snapshot of mileage at each test date, but it only shows the reading at the time of the test. You should also compare it with the V5C logbook and any service records for a complete picture.
What does it mean if a car has a Category S write‑off and how does that affect mileage checks?
A Category S write‑off means the car was repaired after an accident and deemed road‑worthy. Such cars can be subject to odometer tampering to hide damage, so a full history check is essential to confirm the mileage.
How can I spot a clocked odometer when inspecting a used car?
Look for large mileage jumps between MOTs, mismatched service stamps, and signs of wear that don’t match the reported miles. A professional inspection and a vehicle history check can uncover hidden tampering.