Pre-MOT check: how to check your car before an MOT (2026 checklist)
By the Point S Technical Advisory Team — UK tyre and autocare specialists with 400 fitting centres nationwide. Last reviewed: June 2026.
A pre-MOT check is a set of simple inspections you can do at home — or have a garage carry out — before the official MOT test. Most MOT failures are caused by minor, fixable issues: a blown bulb, low screenwash, borderline tyre tread. According to the DVSA, around 28% of the 27 million cars tested in the UK annually fail on their first attempt — mostly for avoidable reasons.
This guide walks you through every key area in around 15–20 minutes, so you can catch problems before test day.
What's checked in a UK MOT test?
An MOT checks that your vehicle meets the UK's minimum road safety and environmental standards. Without a valid MOT certificate, driving your vehicle is illegal — you risk a fine of up to £1,000, and if your car was deemed dangerous, up to £2,500, three penalty points and a potential driving ban. Your car insurance is also voided without a valid MOT, meaning any claim could be rejected.
Here is a list of what is checked in an MOT:
- Lights & electrics — headlights, brake lights, indicators, fog lights, wiring
- Tyres & wheels — tread depth (min 1.6mm), condition, TPMS
- Brakes — service brake, parking brake, ABS, efficiency on rollers
- Steering & suspension — play, power steering, shock absorbers, ball joints
- Interior — seatbelts, seats, horn, warning lights, speedometer
- Windscreen & visibility — chips/cracks, wipers, washers, mirrors
- Exhaust & emissions — emissions inspection via gas analyser, DPF, noise
- Body & structure — chassis corrosion, doors, bonnet, fuel system, VIN
- NOT checked — engine internals, clutch, gearbox
Exterior Pre-MOT inspection checks at home
Quick-reference exterior checklist:
| Area | What to Check | Pass/Fail Criteria |
|---|---|---|
| Lights | Headlights, brake lights, indicators, fog lights, reflectors | All must work and show correct colour |
| Registration plate | Cleanliness, spacing, font, condition | Clean, legible, no cracks or fading |
| Mirrors | Presence and condition | All required mirrors present, no cracks obstructing view of the road |
| Windscreen | Chips and cracks | Max 10mm in driver's swept area, 40mm elsewhere |
Replace any blown bulbs before test day — most cost a few pounds and take minutes to fit. Also check mirrors are present and uncracked, and inspect your windscreen for chips larger than 10mm in the driver's swept area or 40mm elsewhere. For full details, see the official MOT inspection checklist on GOV.UK.
Under the bonnet: fluids and emissions
Checking your fluid levels takes less than five minutes and can prevent both a test failure and engine damage. Work through each of the following:
- Engine oil — check the dipstick on a cold, level engine. The level should sit between the MIN and MAX markers. Top up with the correct grade if needed, but do not overfill. Running low can cause visible smoke or trigger a warning light — both MOT failures.
- Brake fluid — inspect the translucent reservoir near the back of the engine bay. If it's below MIN, top up with the correct DOT-rated fluid or have a garage investigate, as low brake fluid can indicate worn pads or a leak.
- Coolant — check the expansion tank when the engine is cold. Top up with the correct mixture if needed; never open the cap on a hot engine.
- Screenwash — an empty screenwash reservoir is a straightforward MOT fail. Use a properly diluted solution, not plain water.
- Fuel — ensure you have at least enough fuel (a quarter tank) so the tester can run the emissions check.
Your exhaust system will also be inspected for damage, holes or excessive noise. If you drive a diesel, the diesel particulate filter (DPF) must be intact — a removed DPF is an automatic fail.
What things are checked during an interior MOT?
Inside your car, testers focus on the essentials that keep you safe and in control.
Seats & seatbelts
Your driver's seat must adjust forwards and backwards, and all seats must be securely attached. Check every seatbelt — including rear belts — for cuts, fraying or damage, ensure every buckle locks firmly, and verify all belts retract properly. All seatbelts in the vehicle must pass — a single faulty belt is enough to fail the MOT.
2025 update: From June 2025, DVSA rules require testers to lift folded rear seats to inspect belts underneath. If you have fold-flat rear seats, check those belts too.
Dashboard, horn & steering
The ABS, airbag and ESC warning lights must not be illuminated on arrival — if any stay lit after starting the engine, get them investigated. Your horn must produce a consistent, audible sound (novelty horns will not pass). Check the steering wheel for excessive play with the engine off — there should be no more than a few centimetres of free movement before the wheels respond.
UK MOT tyre regulations and brake checks
How your tyres are checked
The legal minimum tread depth is 1.6mm across the central three-quarters of the tyre. Use the 20p coin test at home: insert a 20p coin into the tread grooves — if you can see the outer rim, the tread is too shallow. Tyres must also be free from cuts or bulges and be the correct size for your vehicle.
Check your tyre pressure too: under-inflated tyres won't directly fail the MOT, but an illuminated TPMS warning light will (applies to cars registered after January 2012). You'll find the recommended pressures on a sticker inside the driver's door jamb or in your handbook. If you're unsure about your tread, Point S UK centres offer a free tyre check before your MOT date.
Pass/fail summary:
| Component | Pass Criteria | Fail Indicators |
|---|---|---|
| Tyre tread depth | Legal limit of 1.6mm across central ¾ | Below 1.6mm anywhere in central ¾ |
| Tyre condition | No cuts, bulges; correct size/type | Cuts >25mm, bulges, wrong size |
| TPMS (if fitted) | Warning light off | TPMS light illuminated |
How your brakes are checked
Brakes are tested on rollers measuring both the service brake and parking brake. Listen for unusual sounds or pulling to one side when braking — these can indicate a problem worth investigating before test day.
Pass/fail summary:
| Component | Pass Criteria | Fail Indicators |
|---|---|---|
| Service brake | Meets efficiency standard on rollers | Below minimum efficiency, imbalance >30% |
| Handbrake | Holds vehicle securely | Insufficient holding force |
Body, structure and vehicle identification
Your car's bodywork, chassis, doors and bonnet must be free from excessive corrosion and sharp edges. Doors and the bonnet must open and close securely, and the tester will check for structural damage near suspension mounts, seatbelt anchor points and brake mounts. The fuel tank and all fuel pipes must show no signs of leaking — a fuel leak is an immediate fail. Your battery must be secure with no leaking fluid and clean, tight connectors.
Finally, your Vehicle Identification Number (VIN) must be permanently visible and legible — check it is not obscured by dirt or modifications. If you drive a diesel that uses AdBlue, keep it topped up before test day as this system is also checked.
Most common MOT failures and how to pass your MOT test
Most MOT failures come down to simple, fixable issues. According to DVSA's official MOT testing data (Class 3 & 4 vehicles, 2024–25), the overall initial failure rate was 28% — meaning more than 1 in 4 cars fails on its first attempt.
| Failure category | Share of defect categories |
|---|---|
| Lights, reflectors and electrics | 25% |
| Suspension | 19% |
| Brakes | 16% |
| Tyres | 12% |
| Impaired visibility (windscreen, wipers, mirrors) | 8% |
| Body, chassis and structure | 6% |
| Noise, emissions and leaks | 6% |
| Steering | 4% |
| Seatbelts and restraint systems | 2% |
| Vehicle identification | 1% |
| Wheels | 1% |
Source : DVSA MOT testing data, class 3 & 4, 2024-25
Faulty bulbs — particularly brake lights and headlights — top the list, yet replacing one costs only a few pounds and takes minutes. Insufficient tyre tread, worn wiper blades, windscreen damage and defective seatbelts are also common problems easily caught with a quick walk-around before test day.
MOT defects are categorised into three levels:
- Dangerous: The vehicle cannot be driven away from the test centre until the fault is repaired. Examples include no functioning brake lights or a severely loose steering wheel.
- Major: The vehicle fails and the fault must be repaired, but you may be able to drive it away if your previous MOT is still valid and no dangerous faults are listed.
- Minor: A small defect that does not pose an immediate safety risk. The vehicle still passes its MOT, but the fault is officially recorded on your certificate and should be repaired soon. (Note: This is separate from an Advisory note, which warns you of components nearing their wear limits).
If your vehicle receives a dangerous or major defect rating, it will fail its MOT and cannot legally be driven until repaired. Many drivers avoid this scenario by booking a full pre-MOT inspection at your local Point S UK centre.
What do you have to bring to your MOT?
Your registration number is all the tester needs, but bringing these items can avoid delays:
- V5C logbook - especially for a first MOT or after a number plate change.
- Locking wheel nut key (if fitted) - crucial if your vehicle is fitted with alloy wheels.
- Cleared boot space- ensures the tester can easily access your spare tyre.
- Quarter tank of fuel - necessary for the technician to complete the emissions check.
Frequently asked questions about MOTs
How much does an MOT cost?
The maximum fee for a standard Class 4 MOT (cars with up to 8 passenger seats) is £54.85. Garages can charge less — and many do — but cannot legally charge more. For a full list of maximum fees by vehicle class, see GOV.UK's MOT test fees page.
Can I get my MOT done early?
Yes — you can have your car tested up to one calendar month (minus a day) before your current MOT expires and still keep the same anniversary renewal date. If the test fails, your existing certificate remains valid until its expiry, giving you time to arrange repairs.
Does the MOT testing guide apply to vans and motorcycles?
The standard Class 4 MOT covers most cars and vans up to 3,000kg. Motorcycles follow a separate Class 1 or 2 checklist, while heavier vehicles require a Class 7 test. For details on specific vehicle classes, visit GOV.UK.
Where can I book a Pre MOT check near me?
You can book a professional pre-MOT check at your local Point S centre across the UK. Our expert technicians will inspect your vehicle’s lights, tyres, brakes, and safety systems to identify potential MOT failures early, helping you avoid the stress and cost of a retest.
What happens if my car fails its MOT?
If your car fails its MOT, you will receive a refusal of an MOT test certificate (VT30) listing the defects. You must repair any "Major" or "Dangerous" faults before it can pass. If a "Dangerous" fault is found, it is illegal to drive the vehicle away until it is fixed. If you get the repairs done at the same place that conducted the initial test, you may qualify for a partial re-test (which is often free or cheaper than an MOT test) if you bring it back within 10 working days.
How long does an MOT take?
On average, a standard UK MOT test takes between 45 and 60 minutes. However, you should allow extra time for the garage to complete the necessary paperwork or for potential repairs if faults are found.