Used Car Checks Before Buying: What to Verify Before You Pay

Before anything else, confirm the vehicle exists as advertised. The DVLA can tell you the make, model, engine size, fuel type, colour, and first registration date for any UK registration. This takes seconds and confirms that what the seller has advertised matches the official record.

What to check:

• • Does the make/model/year match the advert?
• • Does the engine size and fuel type match?
• • Is the colour correct? (Respray or different colour on DVLA record is worth questioning)
• • Is tax currently valid?
• • Is there a current MOT?

CarIntellect shows all of this in the free preview - no account required.

MOT history is the closest thing to an independent maintenance log that most used cars have. The testing station is not the owner, not the seller, and has no interest in making the car look better than it is. The MOT record is produced independently and stored centrally by the government.

When reviewing MOT history, look for:

• • Consistent annual tests with no unexplained gaps
• • Whether any failures are isolated or part of a recurring pattern
• • Whether advisory items from one year were addressed in the next
• • Failure categories - brakes, steering, and tyres carry more weight than lights

See our guide on how to read MOT history for a detailed walkthrough.

The mileage recorded at each MOT test is independently verified. Running through these figures from earliest to most recent tells you:

• • What the true average annual mileage has been
• • Whether the mileage always goes upward (as it should)
• • Whether the current advertised mileage is plausible given the last recorded figure
• • Whether there are any suspicious drops that could indicate odometer tampering

See our guide on mileage discrepancy on used cars for how to read the timeline and what counts as a red flag.

Advisory notes are the MOT tester's way of flagging items that are deteriorating but haven't yet reached failure level. An advisory today is often a failure at next year's test if not addressed.

A long advisory list is not automatically a problem. A car with one advisory per year over eight years, with each advisory being different and not recurring, is actually telling you that wear items have been flagged and likely addressed. The pattern that should concern you is the same advisory appearing across two, three, or four consecutive tests.

See our full guide on MOT advisories explained.

Official MOT and DVLA data covers vehicle identity and maintenance history. Legal and financial history - outstanding finance, write-off category, stolen vehicle status, and keeper count - requires a separate specialist vehicle history check. These are different datasets from different sources, and both are worth running before committing to a purchase.

A specialist history check typically covers:

• • Outstanding finance - is the car still subject to a finance agreement the seller hasn't cleared?
• • Write-off category - has the car been declared a write-off (CAT N, CAT S, CAT A or B)?
• • Stolen vehicle register
• • Number of previous keepers

A specialist legal check and a CarIntellect health report are most useful together: one tells you the car's legal and financial background; the other tells you the maintenance and condition story. Learn more in our comparison of free MOT checks vs AI analysis.

With the official data in front of you, you can verify or challenge specific claims:

• • "One careful owner" - does the test station location change across the history? Multiple distant locations with no explanation can suggest multiple owners.
• • "Low mileage" - does the advertised mileage match the MOT record progression?
• • "Recent brakes/tyres/service" - if the last two MOT tests had brake advisories, question whether the recent service actually addressed them.
• • "No issues" - does the MOT history contain repeated failures in any category that contradicts this?