The Ultimate MOT Guide
Table of Contents
What is an MOT?
An MOT is a mandatory annual test for vehicles over three years old in the UK. It stands for Ministry of Transport and checks your vehicle's roadworthiness, safety, and emissions. Every car, van, and motorcycle must pass this test to remain legal on UK roads.
The test ensures your vehicle meets minimum safety standards. Without a valid MOT certificate, you cannot legally drive your vehicle or renew your road tax. At Protyre, we offer comprehensive MOT tests from just £34.95 to keep you safe and legal on the road.
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What is checked in an MOT?
During an MOT test, qualified technicians examine over 600 different components of your vehicle. This includes checking your lights, brakes, tyres, steering, suspension, and exhaust system. They also test your windscreen wipers, mirrors, and seatbelts for safety.
The emissions test ensures your vehicle meets environmental standards. Your vehicle's structure and bodywork are inspected for damage or corrosion. For a detailed breakdown of what is checked in an MOT, visit our comprehensive checklist page
How much does an MOT cost?
The maximum legal charge for a car MOT is £54.85, but at Protyre, we offer MOT tests from just £34.95. Motorcycle MOTs have a maximum charge of £29.65 for both under and over 200cc bikes. Van MOTs cost up to £58.60 for vehicles under 3,500kg.
These prices don't include VAT as MOT tests are VAT-exempt. Remember, you might need additional repairs if your vehicle fails its MOT test. For more information about MOT pricing, visit our MOT cost guide.
How long does an MOT take?
A standard car MOT test typically takes 60 minutes to complete. However, this can vary depending on your vehicle's condition and any issues found. If repairs are needed, the process will take longer. Motorcycle MOTs usually take 60 minutes as well.
Some testing centres offer while-you-wait services for convenience. It's worth booking your MOT in advance to avoid delays. For detailed timing information, check our guide on how long does a car MOT take.
What is not covered by an MOT?
An MOT test doesn't check everything on your vehicle. It doesn't examine your engine's internal components or the operation of its gearbox. The test doesn't assess your vehicle's overall condition or reliability.
Oil levels, coolant, and other fluid checks aren't part of the MOT. Your air conditioning system and radio aren't tested either. Items like wheel alignment and tyre pressure aren't specifically checked. The clutch operation isn't tested unless it affects braking performance.
For a full list of what's excluded, see our page on what's not covered by an MOT.
What is the difference between an MOT and a service?
An MOT is a legal requirement that tests your vehicle's roadworthiness and safety. A service is maintenance work that keeps your vehicle running smoothly and prevents breakdowns. MOTs focus on safety-critical components like brakes, lights, and tyres.
Services include oil changes, filter replacements, and general maintenance checks. You need an MOT annually once your car is three years old. Services are recommended every 6-12 months depending on your vehicle. MOTs are pass/fail tests, while services are preventive maintenance. Both are important for vehicle safety and longevity.
Are MOTs for motorcycles different to Cars?
Yes, motorcycle MOTs have different requirements compared to car MOTs. Motorcycles are classified as Class 1 (up to 200cc) or Class 2 (over 200cc) vehicles.
The test focuses on motorcycle-specific components like chains, sprockets, and steering head bearings. Motorcycle emissions are not checked during the MOT.
The maximum cost is £29.65 for both motorcycle classes. Motorcycles have the best pass rates (lowest fail rates). The main difference is the specific components checked for motorcycle safety and operation.
How to prepare for an MOT
Preparing for your MOT can help ensure your vehicle passes the first time. Check all lights including headlights, brake lights, indicators, and hazard lights work properly.
Inspect your tyres for adequate tread depth and any damage or bulges. Test your brakes, steering, and handbrake before the test. Clean your windscreen and check wipers work effectively. Ensure your mirrors are secure and provide clear visibility.
Remove any items from your car that might obstruct the test. For our complete MOT preparation checklist, visit our detailed guide.
How to book an MOT
Booking your MOT is straightforward and can be done online or by phone. Most testing centres, including Protyre, offer online booking systems for convenience. You can choose a date and time that suits your schedule.
It's recommended to book 1-2 weeks in advance, especially during busy periods. You can book your MOT up to one month before your current certificate expires. This helps avoid any gaps in your MOT coverage. Remember to bring the required documents when you attend your test. Early booking also gives you time to address any potential issues.
When does my car need an MOT?
Your car needs its first MOT test three years after its initial registration date. After that, you need an annual MOT test every 12 months. You can take your MOT up to one month before the expiry date.
This doesn't affect your next MOT due date if you pass. Currently, vehicles over 40 years old are exempt if they haven't been substantially modified. The exact date is shown on your current MOT certificate. For detailed information about when does my car need an MOT, check our comprehensive guide.
What do I need to take to an MOT test?
You'll need to bring your vehicle's registration document (V5C) or log book. Your current MOT certificate (if you have one) should be brought along. Valid insurance documentation is required to prove your vehicle is insured.
The vehicle's key and any security codes may be needed. If you have a personalised number plate, bring the retention certificate. Some test centres may require additional identification. For a complete list of required documents, visit our guide on what do I need to take with me to an MOT test.
Can you change your MOT date?
Yes, you can change your MOT anniversary date by taking your test early. If you pass your MOT within one month of the expiry date, your new certificate runs from the original expiry date.
Taking your test more than one month early will change your anniversary date. This might be useful if you want to align your MOT with your service schedule. You can also take your test late, but this is illegal and risks penalties. For more information about changing your MOT date, visit our detailed guide.
When does a car become MOT exempt?
Cars become MOT exempt when they reach 40 years old and haven't been substantially modified. The exemption applies from the 40th anniversary of the vehicle's registration. However, you're still legally required to ensure your vehicle is roadworthy.
You can voluntarily continue having MOT tests for peace of mind. Historic vehicles must maintain their original specifications to remain exempt. Any significant modifications could remove the exemption status. For complete details about MOT exempt cars, check our comprehensive guide.
Failing an MOT
Failing an MOT can be stressful, but it's a common occurrence that can usually be resolved. Around 28.4% of vehicles initially fail their MOT test, though this drops to 22.7% after minor repairs. You'll receive a detailed report explaining exactly why your vehicle failed.
This report categorises defects as minor, major, or dangerous. You have the right to appeal the result if you disagree with the tester's decision. The good news is that most MOT failures can be repaired and retested the same day.
Common reasons for failing an MOT
Understanding the most common MOT failure reasons can help you prepare better. Lamps, reflectors and electrical equipment account for 25.1% of all MOT failures, making faulty lights the leading cause. This includes headlights, indicators, brake lights, and hazard warning systems.
Brake system issues come second, affecting stopping performance and safety. Tyre problems, including illegal tread depth and damage, are also common. Windscreen damage, suspension faults, and exhaust emissions frequently cause failures.
For detailed information about the most common reasons for MOT failures, visit our comprehensive guide.
Failing an MOT because of your Tyres
Tyre-related failures are among the most common MOT issues. The legal minimum tread depth is 1.6mm across the central three-quarters of the tyre. Any cuts, bulges, or damage to the tyre structure will result in failure. Incorrect tyre sizes or mixing different tyre types can cause problems.
Worn or damaged wheel rims may also lead to failure. Even small cracks in the tyre sidewall can be dangerous. Regular tyre checks can help prevent these issues. For information about tyre cracks and MOT failures, visit our detailed guide.
Failing an MOT because of your Brakes
Brake failures are serious safety issues that require immediate attention. Worn brake pads or discs will cause your vehicle to fail. Brake fluid leaks or contamination can affect braking performance. Faulty brake lights or warning systems will result in failure.
The handbrake must hold the vehicle securely on a slope. Brake pedal travel and feel are also tested thoroughly. Any grinding noises or vibrations indicate potential problems. For detailed information about worn brake discs and MOT failures, check our comprehensive guide.
Failing an MOT because of a Windscreen
Windscreen damage is a common cause of MOT failures. Chips larger than 10mm in the driver's direct line of sight will cause failure. Cracks longer than 40mm anywhere on the windscreen are not acceptable.
Multiple stone chips or extensive damage will result in failure. Windscreen wipers must clear the screen effectively without streaking. Washer jets must provide adequate screen cleaning. Mirrors must be secure and provide clear visibility. For complete details about windscreen issues and MOT failures, visit our detailed guide.
MOT Failure Codes
MOT failure codes help categorise the severity of defects found during testing. Minor defects don't cause failure, but should be monitored and fixed. Major defects are serious issues that cause immediate failure.
Dangerous defects are critical safety problems that make the vehicle unsafe to drive. Each code has a specific meaning and repair requirement. Understanding these codes helps you prioritise repairs effectively. The codes are standardised across all UK MOT testing centres. For a complete explanation of MOT failure codes, visit our comprehensive guide.
Can I drive my car if it fails its MOT?
If your car fails its MOT, you generally cannot drive it legally. However, you can drive directly to a pre-booked appointment for repairs or a retest. You can also drive to a pre-booked MOT test at another centre.
Your current MOT certificate must still be valid for these journeys. If your MOT has expired, it's illegal to drive your car for any reason except to take it to a booked MOT test. Driving without a valid MOT can result in fines and penalties. For detailed information about driving without an MOT certificate, check our comprehensive guide.
MOT Retests
If your vehicle fails its MOT, you can get a free partial retest within 10 working days. This only applies if you get the repairs done at the same testing centre. The retest only covers the items that originally failed the test. If you go to a different centre, you'll need to pay for a complete new test.
You can also get a full retest if more than 10 working days have passed. Some centres offer same-day retests for minor repairs. For complete information about free MOT retests, visit our detailed guide.
What are MOT advisory notes?
MOT advisory notes highlight items that should be monitored but don't cause failure. These are potential problems that need attention in the future. Advisories help you plan for upcoming repairs and maintenance.
Common advisories include slightly worn tyres or minor corrosion. You should address these issues before your next MOT test. Advisories don't affect your current MOT certificate validity. They're valuable information for maintaining your vehicle's roadworthiness. For detailed information about MOT advisory notes, visit our comprehensive guide.
MOT and the Law
Understanding the legal requirements around MOT testing is crucial for all vehicle owners. Driving without a valid MOT certificate is illegal and carries serious penalties. The law requires annual testing for vehicles over three years old. Police have access to MOT databases and can check your status instantly.
Insurance companies may refuse claims if your vehicle doesn't have a valid MOT. The penalties for driving without an MOT have increased significantly in recent years. Government data shows current MOT failure rates are around 28-32% for cars.
Can I drive without an MOT?
No, you cannot legally drive without a valid MOT certificate. The only exception is driving directly to a pre-booked MOT test appointment. You can also drive to a pre-booked appointment for repairs after failing an MOT. These journeys must be direct with no unnecessary stops or detours.
The penalties for driving without an MOT include fines up to £1,000. Your insurance may be invalidated if you drive without a valid MOT. Police can seize your vehicle if it's being driven illegally. For complete information about penalties for driving without an MOT certificate, visit our detailed guide.
MOT Rule Changes
The MOT testing system undergoes regular updates to improve safety and prevent fraud. Recent changes include stricter emissions testing for diesel vehicles. New defect categories have been introduced to better classify faults. The classic car exemption rules have been reviewed and updated. The DVSA has also introduced measures to tackle fraudulent MOT certificates by improving testing procedures. For the latest information about changes in the MOT law, visit our comprehensive guide.
Do I need to keep my MOT certificates?
While you're not legally required to keep physical MOT certificates, it's highly recommended. You can request a replacement MOT certificate on GOV.UK. You'll need the 11-digit number from your vehicle logbook (V5C). MOT certificates provide proof of your vehicle's roadworthiness history.
They can be helpful when selling your vehicle or making insurance claims. Digital records are now stored permanently on the government database. You can check your MOT history online using your registration number. For detailed information about keeping your MOT certificates, visit our comprehensive guide.
Ready to book your MOT test?
At Protyre, we offer comprehensive MOT tests from just £34.95 at our nationwide network of testing centres. Our qualified technicians use the latest equipment to ensure your vehicle meets all legal requirements. We provide clear explanations of any issues found and competitive prices for any necessary repairs.
Book your MOT test today and drive with confidence knowing your vehicle is safe and legal.