Buying a used car
Before buying a used car, match its identity, investigate the recorded history and decide what evidence you need at the viewing. Start with the registration or VIN, then work through finance, mileage, MOT and original documents. Car Check helps you prepare those questions; the seller’s paperwork and the physical car still need to support the answers.
Your quick checklist.
- Confirm the registration and match the physical VIN with the V5C.
- Review available finance, theft and write-off findings before a deposit.
- Compare the dated mileage and MOT entries with maintenance evidence.
- Check safety recalls through official and manufacturer routes.
- View the original documents and arrange an appropriately insured test drive or inspection.
- Plan payment, tax, insurance and lawful collection only after resolving material gaps.
Confirm the vehicle before arranging a viewing
Ask for the registration before travelling, or use the VIN if available. Confirm that the returned make, model and identity details match the advert. The free summary provides vehicle details, MOT and tax status, available tests and recorded mileage.
Keep the advert and report date with your notes. At the viewing, compare the VIN and original documents with the car. Resolve an identity mismatch before interpreting the remaining history.
Review finance, theft and write-off findings
Read the available finance, theft and insurance write off results early in your research. These findings can change what you need to clarify before taking the next step. Look at the explanation, source and date of each result, rather than relying on a headline status alone.
If a record needs attention, ask for supporting documents and check that they relate to this vehicle. A seller’s explanation is useful context, but it does not update or resolve the underlying record. Keep unanswered questions open until you have evidence you can verify.
Compare mileage with supporting records
Read the mileage entries in date order and compare the most recent reading with the advert. Look for a later reading that is lower than an earlier one, unusually large changes or long periods with no recorded mileage. Note the dates and sources so you can ask about the specific entries.
A discrepancy is a reason to investigate, rather than proof of a particular explanation. Recording errors and changes to the instrument cluster may need supporting paperwork. Equally, a steadily increasing timeline cannot confirm every mile the car has covered. Compare it with the odometer and dated service records when you see the car.
Read MOT advisories and repair evidence
The MOT history can show test dates, pass or fail results and the mileage recorded at each test. Where available, read the failure reasons and advisories as well. The pattern across several tests is often a more useful starting point for questions than the latest result on its own.
Write down issues that appear repeatedly and ask whether the work has been completed. Request invoices or other repair records, then discuss anything uncertain with the person inspecting the car. An MOT record describes a test on a particular date; it is not a complete service history or an assessment of the car’s condition today.
Check keeper and plate-change context
Available keeper and number plate changes can help you understand the vehicle’s timeline. Compare their dates with the seller’s account of how long they have had the car and any older paperwork. A previous registration may help explain why a document shows a different number plate.
Treat these records as context, rather than a verdict on how well the vehicle has been maintained. Several keeper changes do not explain the reasons for each change, and a low keeper count does not establish good condition. Ask about the car’s use and maintenance, then look for records that support the answers.
Prepare questions the seller can answer
Make a short list of the details you want to understand before travelling. Instead of asking whether everything is fine, refer to a particular record: an advisory that appears on more than one test, a mileage entry that does not fit the timeline or a keeper change that needs explaining.
Ask what paperwork will be available at the viewing, including the V5C registration certificate, service history and repair invoices. Keep the seller’s responses next to your report notes. Clear answers supported by relevant documents make it easier to decide whether a viewing is worth your time.
Compare the report with the car in person
Use the report as a reference when you see the vehicle. Compare its details with the car and paperwork, check the displayed mileage and return to the questions you prepared. Look at the documents themselves so that you can connect an explanation to a date, a repair and the correct vehicle.
A history check and an inspection answer different questions. The report helps you understand available records; seeing the car, taking an appropriately insured test drive and arranging an independent inspection help you assess its current condition. Give any unresolved finding to the inspector so they know what you want examined.
Review the evidence before paying
Bring together the report, the seller’s answers, the paperwork and your inspection notes before you commit. Separate what has been confirmed from what still needs an explanation. A clear result in one section does not cancel out an unresolved concern elsewhere, and unavailable information should remain a gap in your research.
Download the report as a PDF to keep with the advert and your notes. Remember that it reflects the information available when the check was made. If time has passed before you are ready to buy, consider a fresh check and review anything that has changed. The useful outcome is a decision based on evidence you understand.
Resolve the documents and collection plan before payment
Ask whether the original V5C and green new keeper slip will be available. DVLA advises against buying a vehicle without a V5C. A clear history report cannot replace that document or establish the seller’s legal right to sell the car. Settle an unexplained mismatch or missing log book before treating the transaction as routine.
The seller’s vehicle tax does not transfer to you. Plan your own tax, insurance and any MOT or roadworthiness requirements before collection. If a car cannot meet the conditions for the planned journey, change the collection arrangements rather than relying on a seller’s assurance that you can drive it home.
Confirm safety recalls with the manufacturer
GOV.UK recommends a safety recall check as part of researching a used vehicle. A model-level campaign and proof that work was completed on this particular VIN are different pieces of information. Ask the manufacturer or an authorised repairer to confirm what remains outstanding.
Recall information in MOT records depends on the manufacturer. Do not infer that a car has no outstanding work simply because a report contains no recall entry. Keep the manufacturer’s response and any completion evidence with the rest of your buying notes.
Frequently asked questions.
Sources and review.
Reviewed on . Published by Car Check using the official guidance below. Follow the linked source for current instructions and any differences across UK nations.
