How do I check a car's mileage history for free?

The DVSA MOT history (and MotorMkt's free check) lists the recorded mileage at every MOT. Look for a continuous increase — any drop between tests is a red flag.

Selling a clocked car without disclosure is illegal under consumer protection law. Adjusting mileage itself isn't automatically illegal, which is exactly why disclosure matters.

Can mileage drop legitimately?

Rarely — for example a data-entry error at an MOT, or an odometer/cluster replacement (which should be documented). Treat any drop as something that needs a clear explanation.

How to Spot a Clocked Car

Use a car's MOT mileage history — for free — to catch a wound-back odometer.

By the MotorMkt teamPublished 20 June 2026Last updated 20 June 2026

How we source our data: our free checks use official records from the DVLA (registration & tax) and DVSA (MOT history). Paid full history data — finance, stolen and write-off markers — is supplied by UK Vehicle Data (UKVD), which aggregates industry registers including MIAFTR (insurance write-offs) and the Police National Computer (stolen markers). MotorMkt does not query those registers directly.

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Enter its registration to check the official tax, MOT and mileage record free. If you need provenance for a purchase or ownership decision, add finance, stolen and write-off checks.

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Quick answer

"Clocking" means winding back a car's odometer to hide high mileage — illegal to sell but still common. The quickest check is free: compare the mileage recorded at each MOT test. Any drop between tests, or a suspicious jump, is a red flag. Cross-check the odometer against wear (pedals, steering wheel, seat bolster) and the service history. MotorMkt's free check shows the full MOT mileage timeline so discrepancies are easy to spot.

What clocking is — and why it matters

Clocking lowers the displayed mileage to make a car look less used, so the seller can charge more. A clocked car hides real wear and overdue maintenance — you pay over the odds for a vehicle that may be due expensive work.

It's not just dishonest: under the Consumer Protection from Unfair Trading Regulations 2008, selling a clocked car without disclosing it is illegal.

The MOT mileage method (step by step)

Pull up the car's DVSA MOT history (or run MotorMkt's free check).
List the recorded mileage at each test, oldest to newest.
Confirm the figure goes up at every test — never down.
Flag any drop, or a year with implausibly low (or high) mileage.
Compare the latest MOT reading with the odometer in front of you today.

A typical UK car covers roughly 7,000–10,000 miles a year. A run of years far below that — then a sudden jump — can indicate the odometer was wound back and later reset.

Physical wear signs to cross-check

• Shiny or worn pedal rubbers on a "low-mileage" car
• A worn, polished steering wheel or gear knob
• Sagging or heavily creased driver's seat bolster
• Stone chips and worn arches inconsistent with low miles
• A replacement (newer-looking) instrument cluster

Service-history checks

Service stamps and invoices record mileage too. Lay them next to the MOT timeline — they should all climb together. A service showing higher mileage than a later MOT is a clear sign of tampering.

What to do if you suspect clocking

• Ask the seller to explain the discrepancy in writing.
• Don't pay a deposit until it's resolved.
• Run a full history check — it includes a mileage-anomaly assessment.
• If you believe a dealer is knowingly selling a clocked car, report it to Trading Standards via Citizens Advice.

Frequently asked questions

How do I check a car's mileage history for free?: The DVSA MOT history (and MotorMkt's free check) lists the recorded mileage at every MOT. Look for a continuous increase — any drop between tests is a red flag.
Is clocking illegal?: Selling a clocked car without disclosure is illegal under consumer protection law. Adjusting mileage itself isn't automatically illegal, which is exactly why disclosure matters.
Can mileage drop legitimately?: Rarely — for example a data-entry error at an MOT, or an odometer/cluster replacement (which should be documented). Treat any drop as something that needs a clear explanation.

See the full mileage timeline

MotorMkt's free check shows every recorded MOT mileage. Ask Frank if a reading looks off.

Run a free check Ask Frank

Related guides

Car Checks Explained

history checks, finance, write-offs and MOT history

Write-Off Categories

Cat A, B, S and N explained

Disclaimer: This guide provides general information only and is not legal advice. Always verify mileage independently before purchase.