How the MOT test is structured
This checklist follows DVSA's own chapter structure rather than an invented one, so you can cross-check any car against the primary source. Every competitor checklist we found reorganises the test into its own ad hoc headings, which makes that impossible. Below, each heading matches a numbered chapter of the manual. If you're a buyer trying to read a used car's MOT record, or an owner whose own car is booked in, this is what a "pass" actually verified.
A car needs its first MOT by the third anniversary of its registration, then once a year after that. A small number of vehicles are exempt — most notably certain historic vehicles over 40 years old — but for the ordinary used car you're looking at, assume an annual test applies.
The maximum fee a garage can charge for testing a Class 4 vehicle (an ordinary car, up to eight passenger seats) is £54.85. That's a cap, not a fixed price, so many garages charge less.
On the day, the tester grades any faults they find. Since 20 May 2018, defects have fallen into three categories — Dangerous and Major (both fail the car) and Minor (a pass, but recorded). Below all of those sit advisories: not a defect category at all, just a note that a part is wearing but isn't bad enough to fail yet. We cover how to read those in full in MOT Advisories Explained — worth a look if you're staring at a car's history and trying to tell a red flag from ordinary wear.
The full MOT checklist, category by category
These are the chapters of DVSA's MOT inspection manual for cars and light vans, in order. A tester works through them all.
Identification of the vehicle
Before the test proper, the tester checks the car is the one on the paperwork: the registration plates (present, secure, correctly spaced and legible) and the vehicle identification number (VIN). A missing or unreadable plate, or a VIN that can't be found, stops the test.
1. Brakes
The big one. The tester checks the condition of brake components, then measures how well the service brake (the pedal), secondary brake and parking brake actually work on a roller brake tester or by other approved means. Anti-lock braking (ABS) and electronic braking (EBS) warning systems and brake-fluid condition are checked too.
2. Steering
Mechanical condition of the steering system, the steering wheel and column, excessive play or stiffness, and — where fitted — electronic power steering, including its warning lamp.
3. Visibility
The driver's view of the road: windscreen condition, anything obstructing the swept area, the wipers and washers, and the mirrors (or other means of seeing behind). Damage directly in the driver's line of sight is judged more harshly than a chip out at the edge.
4. Lamps, reflectors and electrical equipment
Headlamps (including aim), position lamps, daytime running lamps, brake lamps, indicators, hazards, fog lamps, reversing lamps, reflectors, and the security and condition of the battery and visible wiring. A blown bulb is one of the most common reasons a car fails.
5. Axles, wheels, tyres and suspension
Axles, wheel bearings, the wheels themselves, the suspension, and the tyres. This is where the single most-searched MOT fact lives: the minimum legal tread depth for a car is 1.6mm, and it must be met across the central three-quarters of the tyre's width, all the way around. A tyre worn below that — or with certain damage, or the wrong size or type — fails. Tyre pressure monitoring (TPMS) warning systems are checked on cars first used from 2012.
6. Body, structure and attachments
The car's structural integrity: corrosion or damage to load-bearing areas and anywhere near brake or steering mountings, the general condition of the body, the exhaust system (secure and complete), plus doors, seat security and the floor. This is where serious rust fails a car.
7. Other equipment
Seat belts (all those fitted — condition, security and operation), airbags and other supplementary restraint systems, the horn, the speedometer, and electronic stability control where fitted.
8. Nuisance
Emissions and noise. The tester runs an exhaust emissions check appropriate to the engine and fuel type, looks for excessive smoke, checks the engine malfunction (management) warning lamp, and notes any serious fluid leaks. This is the environmental half of "road safety and environmental standards".
(DVSA's manual has two further chapters — 9, supplementary tests for buses and coaches, and 10, seat-belt installation checks for older vehicles not built with belts. Neither applies to the ordinary car, so they're not broken out above, but they're part of the full ten-chapter structure for completeness.)
What an MOT does NOT check
This is the bit that catches buyers out. An MOT is not a service and not a mechanical health-check. gov.uk states plainly that "the test does not cover the condition of the engine, clutch or gearbox." Nothing outside the chapters above is inspected — so cambelt condition, oil quality, the state of the clutch, gearbox and internal engine wear are all invisible to the test.
That matters when you're buying.
It also doesn't verify service history, and it certainly won't tell you whether the car has been written off, clocked or has finance owing on it. What commonly does fail, and how to spot the patterns, is covered in Common MOT Failures.
What's new or changing in 2026
The "new MOT rules 2026" headlines are worth separating into what gov.uk actually confirms and what it doesn't.
Confirmed: tighter tester-ban enforcement (9 January 2026)
Under MOT Special Notice 05-25 (published 19 December 2025), from 9 January 2026 a tester or authorised examiner principal given a two-year or five-year disciplinary "cessation" is barred from holding any MOT role for the whole of that period. This is about who is allowed to test, not what's tested — an integrity measure, and a reminder that a historic test is only as reliable as the person who signed it.
Confirmed: jacking-equipment specification change (1 April 2026)
MOT Special Notice 04-25 introduces new jacking-equipment specifications for Class 4 test bays from 1 April 2026 — but only for centres applying to open or change from that date, because the old spec couldn't safely jack some heavier electric and hybrid cars. It's a garage-equipment standard, not a new check on your car. If your usual test station is already set up, nothing changes for you.
Under review: "new EV checks" and "digital tyre gauges"
Some 2026 coverage claims DVSA has introduced new EV-specific high-voltage inspections (cables, charging port, battery) and mandatory digital tyre-tread gauges. On gov.uk's own published record, neither stands up as a new-for-2026 rule. DVSA's inspection-manual updates log shows no new EV inspection item added in 2025 or 2026 — testing electric and hybrid vehicles is long-standing guidance, and the only recent EV-related change is a wording clarification about tester safety around high-voltage cabling, not a new thing checked on the car. And there is no gov.uk source mandating digital tyre gauges; digital gauges are simply one type of DVSA-approved tool a garage may already use, not a 2026 requirement. If you've seen these claims elsewhere, treat them as unconfirmed until DVSA's own updates say otherwise.
How to check a car's MOT history before you buy
You don't need gov.uk's checker for this — our own free car check pulls a car's full MOT record from just the number plate, alongside its current and historical tax status. For each test it shows the date, the pass or fail result, the mileage recorded, any failure reasons and any advisories.
Reading those together across several years is the real value — especially the mileage, which should only ever climb. Run the plate through our MOT check tool while you're comparing cars, and let the record shape the questions you ask and the price you offer.
FAQs
What is checked in an MOT test?
Brakes, steering, visibility, lights and electrics, axles/wheels/tyres/suspension, the body and structure, seat belts and other equipment, and emissions and noise — the eight core chapters of DVSA's inspection manual, plus a vehicle-identity check first.
What does an MOT not check?
General mechanical condition and servicing. gov.uk states the test does not cover the engine, clutch or gearbox, and it checks nothing outside its safety and emissions remit. A pass is not a guarantee the car is healthy or well-maintained.
What's the minimum legal tyre tread depth for an MOT?
1.6mm, measured across the central three-quarters of the tyre's width and around its entire circumference. Below that, the tyre fails.
What's the difference between an MOT advisory and a fail?
A car fails on a Dangerous or Major defect. An advisory isn't a fail — it's a note that something is wearing but was acceptable on the day. See MOT Advisories Explained.
How much does an MOT cost in 2026?
The maximum fee for a car (Class 4) is £54.85. That's a cap — many garages charge less.
Is the MOT test changing in 2026?
Two confirmed changes affect who tests and how garages are equipped (tester-ban enforcement from 9 January, jacking specs for new or changing centres from 1 April), not what's checked on your car. Claims of new EV-specific checks or mandatory digital tyre gauges aren't confirmed on gov.uk.
Does the MOT emissions check mean my car is ULEZ compliant?
No — they're different things. The MOT checks your car's actual exhaust emissions against a standard for its type; ULEZ and Clean Air Zone compliance is about the car's emissions class and whether a daily charge applies. See ULEZ and Clean Air Zones, or check a specific car with our ULEZ check.
How do I check a used car's full MOT history before I buy it?
Run the number plate through our free car check or MOT check tool. You'll see every test date, result, mileage figure, failure reason and advisory on record.