Vehicle guide
What does a vehicle mileage discrepancy mean?
Build a dated mileage timeline and distinguish an explained correction from an unresolved anomaly.
Build one dated mileage story
9-second silent explainer · press play
Read the three steps
- 01 · TimelinePut every reading in order
Use MOT tests, service invoices, adverts and the current odometer.
- 02 · DifferenceLocate the change
Separate a reduction from an entry, unit or replacement issue.
- 03 · EvidenceKeep unknowns visible
Treat the mileage as unconfirmed until dated evidence explains it.
A mileage anomaly is a conflict in the available chronology, not automatically proof of alteration. The practical task is to build the strongest dated timeline and identify whether the difference is explained.
Build the timeline
- 1
Compare every MOT mileage in date order.
- 2
Add dated service invoices, digital service records, workshop receipts and retained adverts.
- 3
Check whether a documented odometer replacement, unit conversion or simple input correction explains the change.
Ask for evidence
Ask the seller to provide original evidence rather than a verbal explanation. A missing separate mileage-data result should be shown as not returned, not as a clear result.
Before deciding
If the chronology remains inconsistent, price and assess the vehicle on the basis that its true mileage is not confirmed, or choose another vehicle.
Your practical checklist
Tick each item as you work through the vehicle, documents and evidence. An unticked item stays open—it does not become a clear result.
Useful sources and next steps
Questions buyers ask
Does a mileage discrepancy mean the odometer was altered?
Not necessarily. Input errors, replacements and unit conversions can create anomalies. Build a dated evidence trail before deciding whether the difference is explained.
Which mileage evidence is strongest?
Use the full chronology: MOT records, itemised service invoices, workshop records, retained adverts and documented odometer replacement information where relevant.
Check the vehicle in this guide
Start with the free official-data snapshot. We will keep anything not returned clearly marked as unknown.
What vehicle are we looking at?
Enter the registration, or upload a clear photo of the number plate. You will confirm anything read from an image before a check runs.
Images are processed only to find registration candidates and are not retained by Car Assistant. We do not extract other V5C details.