ScrapTrak advice
Mileage on the Dashboard and MOT History Do Not Match: What to Tell a Buyer
If the mileage on your car does not fit its MOT history, give the buyer both readings and explain what remains uncertain. Gather the original records before deciding that an entry is a mistake. A clear account of the discrepancy is more useful than choosing the number that makes the car look better.
Compare the same vehicle, reading and date
Start with the registration and the date of the record you are reading. The official MOT history service lists mileage recorded at each test. That is a reading from a particular day, not a live mileage feed.
Note the current odometer reading separately from the trip counter. Check whether each figure is shown in miles or kilometres, and retain those units when sharing it. Do not silently convert or edit a historic entry. If the car has been imported, had its instrument cluster replaced or had a known recording problem, look for documents that support that explanation.
A discrepancy alone does not tell you why it happened. Avoid accusing a previous owner or describing a suspected error as a confirmed correction.
Build a short evidence timeline
Put the relevant MOT entries, service invoices and repair records in date order. Keep the complete original documents and note which vehicle each identifies. A useful timeline records:
- the date and mileage on the entry that concerns you;
- the readings immediately before and after it;
- any invoice recording an instrument-cluster replacement or related work;
- the current displayed reading, its units and the date it was observed.
A recent dashboard photograph can show what is displayed now; it cannot, by itself, prove what was displayed at an older MOT. Use an existing photograph if you have one. Do not start or move an unsafe car just to obtain an image.
If documents are missing, say which parts of the history you cannot substantiate. Our guide to selling a car with incomplete service records explains how to gather useful evidence without overstating it.
Use the official route for an incorrect MOT entry
For an MOT in England, Scotland or Wales, GOV.UK sets out how mileage mistakes are corrected:
- Within 28 days of the test: ask the MOT centre that performed it. The centre must see the vehicle again and updates the record to the mileage at that check. Discuss safe transport if the car cannot be driven.
- More than 28 days later: use the online reporting route linked from GOV.UK. Evidence must show the correct mileage and a date within one day of the MOT. Accepted documents include the MOT invoice, an emissions printout, a service receipt or the centre’s vehicle job card.
Check the official page for all required details and remove unrelated personal or payment information from copies. After DVSA updates the record, check the online history and keep the corrected certificate. Do not describe a submitted request as an approved correction.
Explain what is known while an issue is unresolved
Use a short factual note: the dashboard currently shows this reading, the MOT entry on this date shows another, and these documents or enquiries are available. If you do not know the vehicle’s true total mileage, say that explicitly. Do not present the displayed figure as verified lifetime mileage.
The discrepancy and the car’s mechanical condition are separate questions. Describe known faults as well. Our guide to reading an MOT result covers what its defect categories mean.
Keep the same information in every quote enquiry
Disclose the mismatch before agreeing a sale or collection. When comparing vehicle quotes, send each buyer the same readings, uncertainty and supporting explanation. Ask whether further evidence is needed before an offer can be confirmed.
If the record changes after an enquiry, send the update before handover. Keeping the correspondence together helps everyone understand what was disclosed and what has actually been resolved.
