Updated May 2026

How to spot clocked mileage on a used car

The most reliable way to spot clocked mileage on a UK used car is to compare the dashboard reading against the MOT mileage trail in the DVSA history. Every annual MOT records the mileage shown on the day of the test, and that record can't be changed by whoever alters the odometer. If the trail isn't consistent, the car has been clocked.

TL;DR

Run a free MOT check, list the recorded mileage at every test in order, and compare against the dashboard. Backwards or unusually slow growth = clocking. Run a check now.

Pull up the MOT mileage trail:

Step 1 — Get the MOT mileage trail

Use our free MOT check or mileage check to pull every recorded MOT reading. Write them down chronologically: test date and mileage. The numbers should rise smoothly from one test to the next.

Step 2 — Compare against the dashboard

When you view the car in person, check the actual odometer reading. Project where it should be, given the most recent MOT reading and how long ago that test was. A few honest checks:

Backwards numbers. If the dashboard reads less than the most recent MOT mileage, the odometer has been wound back — full stop. There is no innocent explanation.
Suspiciously low growth. A car with 80,000 miles on its last MOT three years ago, now showing 82,000, has done 700 miles a year. Possible but worth questioning.
Implausible high growth. Less common as fraud, but a sudden mileage jump can suggest the previous low mileage was the suspect figure.

Step 3 — Look for the physical signs

Clocking shows up on the car as well as the paperwork. Cross-check the “low mileage” claim against:

Wear on the steering wheel and gear knob. A car that's genuinely done 40,000 miles shouldn't have a polished, shiny wheel rim.
Driver's seat bolster. Significant wear or collapsed foam doesn't happen at 40,000 miles.
Pedal rubbers. Worn-through pedal rubbers tell their own story.
Stone-chips on the bonnet and front bumper. Heavy chipping suggests motorway miles.
Service book. Each entry should record mileage at the service. A coherent service book will roughly track the MOT trail.

Step 4 — Run the wider checks

A paid HPI-style report adds a mileage-discrepancy check from insurance and finance sources, which sometimes catches clocking that happened between MOTs. For most buyers the free MOT trail is enough; for high-value purchases, layering on a paid report is a modest extra cost. We cover the trade-off in MOT vs HPI check and our blog post on which cars carry the highest clocking risk.

What clocking actually looks like in MOT history

Two common patterns:

The hard rollback. Mileage recorded as 110,000 at the 2022 MOT and 65,000 at the 2024 MOT. Crude, obvious, and easy to spot — but it still happens.
The slow steal. Each year's mileage is slightly understated, so the trail still rises but at a flat, implausible rate. Harder to spot at a glance but obvious when you calculate the annual delta.

A useful sanity check is to compare the average annual mileage in the MOT trail with what UK drivers typically do. Most cars cover somewhere in the region of 7,000 to 12,000 miles per year. A car claiming 3,000 miles a year over a long period is unusual and worth questioning — though not always fraudulent (genuinely low-use cars do exist).

Frequently asked questions

Is clocking illegal?

Selling a car without disclosing that the odometer has been altered is illegal under the Consumer Protection from Unfair Trading Regulations 2008. The act of altering the reading itself is not always a separate offence, but selling on with the new reading without disclosure is fraud. Trading Standards prosecute clocking cases regularly.

How common is clocking in the UK?

It is widespread enough that consumer groups and the AA have publicly warned about it for years. The exact share of cars affected is hard to measure precisely — by definition, successful clocking goes undetected — but with mileage-correction tools cheaply available online, it is realistic to assume any high-value used car could have been targeted.

Why do people clock cars?

Lower mileage means a higher resale price. The same model with 60,000 miles on the clock will sell for noticeably more than the equivalent with 120,000 — even though the underlying wear is identical. Clocking can also be used to dodge mileage-based finance contracts.

Can a clocked car still pass an MOT?

Yes — the MOT does not check the accuracy of the odometer. The tester records the reading shown on the dashboard. That's why the historical MOT mileage record is so useful: any clocking has to fool the seller, the buyer, and a continuous trail of past MOT readings, which is much harder.

What should I do if I think a car has been clocked?

Walk away from the deal. If you've already bought the vehicle, raise a complaint with the seller, contact Citizens Advice or Trading Standards, and gather evidence (the MOT history printout, photos of the dashboard, your receipt). Clocking that's been disclosed is not illegal — but undisclosed clocking is fraud and you have legal redress.

What other red flags appear in MOT history beyond mileage?

Watch for: the same advisory item recurring for years (a known fault never fixed, just deferred), repeated first-time failures on the same components (chronic neglect), tests always at the same back-street garage with consistently 'clean' passes (possible ghost MOTs), long unexplained gaps between tests (uninsured driving or undisclosed off-road repairs), and dangerous defects appearing close together (the car is being driven into the ground).

How do I verify an MOT certificate is genuine?

Run the registration through the official GOV.UK MOT history service or MOT Checkup. Both pull live DVSA data, so a fake paper certificate cannot match what the database shows. Confirm: the test date, expiry date, mileage, and certificate number on the seller's certificate match the digital record exactly. Any mismatch means the certificate is forged.