MOT history check.
Every test, listed.

How to use an MOT history check like a trader

Dealers read history checks in a fixed order — steal their routine:

• The last test first. Its advisory list is next year’s repair bill, itemised. Tyres and brakes are cheap; corrosion and suspension are not.
• The mileage line. Follow the numbers down the years. Steady rises of 6,000–12,000 a year are healthy; a drop of even 1 mile is impossible without clocking or a recorded error.
• The failure pattern. A fail every year on different wear items = an honest car. The same structural item failing again and again = a car with a permanent problem.
• The gaps. Years with no test at all often mean the car sat unused (check for SORN periods) or was off the road being repaired.

Advisories, translated

Advisories are the tester’s early warnings. The ones that matter most: “corrosion” anywhere near structural areas (sills, subframes, seatbelt mounts) — rust spreads and welding is expensive; “oil leak” that worsens year on year; brake pipes “corroded, covered in grease” — a fail waiting to happen. The benign ones: tyre wear nearing limits, slight play in a bush, a chip in the windscreen outside the swept area. An MOT history check puts advisories in date order, so you can see whether last year’s warning was fixed — or ignored.

Failure reasons that should stop a purchase

Most failures are routine. Three are not: “dangerous” defects recorded at any point (the car was illegal to drive), a refusal to test entry, and repeated emissions failures on diesels, which can signal DPF removal — an offence that makes the car unsellable in some cities’ clean-air zones. All three appear plainly in a full history check; none of them appear in a seller’s advert.

History checks vs the paper certificates

Paper MOT certificates can be lost, and sellers rarely keep all of them. The digital record is better than the paper set: it cannot be selectively edited, it covers every test the car has ever had under computerised testing, and it includes the vehicles’ mileage as recorded independently by testers. When a seller’s folder of certificates disagrees with the digital history, believe the digital history and ask why.

Northern Ireland and older records

The history record covers vehicles tested in England, Scotland and Wales (DVSA) and Northern Ireland (DVA) under the current combined API. Computerised records go back to 2005; tests before then were paper-only and do not appear. For very old vehicles, treat a short history as normal, not suspicious.

What the MOT test itself checks — so you know what the history is made of

Every line in a history comes from the same test, carried out by an authorised tester at an authorised test centre, against the standards in the MOT inspection manual. The tester checks the body and vehicle structure, the fuel system, exhaust emissions, seatbelts, steering, brakes, tyres and wheels, lights, mirrors, the windscreen, wipers and washers, number plates, doors, seats and the horn.

The test does not check the general condition of the engine, clutch or gearbox, and it is not a service. That is why a history can look perfect while the car still needs work: a pass means the car met the minimum standards on that day, not that the engine is healthy or the service book is up to date.

Knowing what was checked also tells you what a blank history means. If a year shows no advisories at all, it does not mean the car was perfect in every way — it means nothing on the tester’s list needed noting that day. And if the same item appears year after year, it is the tester telling you, in writing, that a repair is being put off.

How to read the grades in a history: advisory, minor, major and dangerous

Every defect in a test is graded. An advisory means the vehicle passes, but the tester has noted something to watch. A minor defect also means a pass, but it should be fixed as soon as possible. A major defect means the vehicle fails, and a dangerous defect means it fails and must not be driven until it is repaired.

A pass is recorded on a VT20 certificate and a fail on a VT30 certificate. In a history, the grades matter more than the pass or fail alone. A car with a single major defect for a bulb, fixed the same day, is a different story from a car with dangerous defects or the same major defect three years running. Look for the grade words, not just the result.

If a vehicle fails, it can be driven away only if the old MOT is still valid and there is no dangerous defect. Driving with a dangerous defect can lead to a fine of up to £2,500, a driving ban and 3 penalty points. That is why a dangerous defect in the history should stop a purchase, even if the car later passed.

If a test is missing from the history, or the history looks wrong

Computerised records go back to 2005, and tests before then were paper-only, so they do not appear. A test done today normally appears the same day, because the record updates as tests are completed. If a recent test is missing, check the registration first: a wrong letter, or a private plate recently transferred, is the most common cause.

A gap of a year with no test at all can mean the car sat unused, was off the road, or was being repaired, and it is not on its own a warning sign. A mileage reading that goes down is different: it can be a replacement odometer or a tester error, but it must be explained with documents before you buy, because the trade treats unexplained decreases as clocking.

If a result in the history looks wrong, speak to the test centre that carried out the test. If you disagree with a fail, you can complain to the DVSA, but you must appeal within 14 working days of the test and you must not repair the vehicle until the appeal is finished. The DVSA will contact you within 5 working days and arrange for the vehicle to be checked again. A recheck costs the full test fee again, with a refund if the appeal succeeds.

Frequently asked questions