17/08/2021
The MOT test, or Ministry of Transport test, is an annual examination of your vehicle to ensure it meets roadworthiness and environmental standards. It's a legal requirement for vehicles over three years old in the UK, and failing to have a valid MOT certificate can lead to fines and even prosecution. But what exactly does an MOT involve, and why is it so important? This comprehensive guide will delve into the intricacies of the MOT test, helping you understand the process, what components are scrutinised, and how to ensure your vehicle passes with flying colours.
Understanding the MOT Test
At its core, the MOT test is designed to enhance road safety and reduce the number of unroadworthy vehicles on our streets. It's not a substitute for regular maintenance, but rather a snapshot of your vehicle's condition on a specific day. The test checks for compliance with relevant legislation, focusing on critical areas that impact safety and the environment. It's important to remember that an MOT certificate indicates that a vehicle is roadworthy at the time of inspection, but it does not guarantee the condition of the vehicle for the rest of the year.
What Does an MOT Test Cover?
The MOT test covers a wide range of components. These can be broadly categorised into several key areas:
1. Vehicle Identification Number (VIN)
The VIN, a unique 17-character code, is checked to ensure it matches the vehicle's registration documents. This is a crucial step in preventing vehicle cloning and theft.
2. Body and Vehicle Structure
This section checks for excessive corrosion or damage that could affect the vehicle's structural integrity. This includes checking the chassis, suspension mountings, wheel bearings, and other structural components for weakness or damage. Specific areas like the sills, suspension towers, and wheel arches are closely examined.
3. Lighting Equipment
All lights on the vehicle, including headlights, taillights, brake lights, indicators, and hazard lights, are tested for correct operation, aim, and condition. The colour of the lights is also checked to ensure it complies with regulations.
4. Doors, Mirrors, and Other Visible Parts
This includes checking that doors open and close correctly, that mirrors are present, secure, and in good condition, and that other visible parts like the bonnet and boot are securely fastened.
5. Steering and Suspension
Components like the steering wheel, steering column, power steering, suspension arms, springs, and shock absorbers are all inspected for wear, damage, and proper operation. Play in the steering wheel or loose suspension components can significantly impact a vehicle's handling and safety.
6. Wheels and Tyres
Tyres are checked for tread depth (minimum 1.6mm across the central three-quarters of the breadth of the tread), damage, and correct inflation. Wheels are inspected for damage, distortion, or corrosion that could compromise their integrity. The correct fitment of wheels and tyres is also assessed.
7. Seats and Seatbelts
All seatbelts are checked for condition, operation, and the presence of any damage. The seats themselves are checked to ensure they are securely fitted.
8. Brakes
This is one of the most critical areas of the MOT test. The condition and performance of the braking system, including the brake pedal, brake fluid, brake lines, hoses, and the handbrake, are thoroughly examined. Roller brake tests are often conducted to measure the braking efficiency of both the service brake and the parking brake.
9. Exhaust Emissions
For petrol vehicles, the exhaust emissions are tested against government limits. For diesel vehicles, a smoke test is performed. This ensures that your vehicle is not contributing excessively to air pollution.
10. Windscreen
The windscreen is checked for chips, cracks, or damage that could obstruct the driver's view. The size and location of any damage are critical; for example, a chip larger than 40mm or a crack affecting the area swept by the wipers will result in a failure.
11. Wipers and Washers
For the MOT test, wipers and washers must be in good working order to clear the windscreen effectively. This is crucial for visibility in adverse weather conditions.
12. Horn
The horn must be present and functioning correctly. It should produce a consistent sound without distortion.
13. Fuel System
The fuel system is checked for leaks and ensure that the fuel cap is present and securely fastened.
14. Electrical Equipment
This covers a range of electrical components, including the battery, wiring, alternators, and starter motors, ensuring they are in good condition and functioning correctly.
The MOT Test Process
When you take your vehicle for an MOT test, the authorised examiner will conduct a thorough inspection based on the criteria outlined above. The test typically takes between 45 minutes and an hour. You can usually wait while the test is carried out, especially if you've booked with a local, reputable centre. For instance, places like Roadrunner MOT test centres in Stroud, Gloucestershire, with their extensive experience, offer a reliable service. Similarly, businesses like Bar-Ash Motorcycles, owned by Ben White, also provide MOT services for a range of bikes, showcasing the local expertise available.
Pass or Fail?
Upon completion of the test, you will be given a 'pass' certificate (VT20) or a 'fail' certificate (VT30). If your vehicle fails, the certificate will list the reasons for failure. You will then have a period of time to have the necessary repairs carried out and to have the vehicle re-tested. If the vehicle is re-tested within 10 working days, certain items may not need to be re-checked. However, if you continue to use a vehicle that has failed its MOT, it must be kept off the road or taken for repair. Driving an unroadworthy vehicle can have serious consequences.
What Constitutes an MOT Failure?
Failures are categorised into 'dangerous' and 'major' defects. A vehicle with a 'dangerous' defect must not be driven until it is repaired. A 'major' defect means the vehicle will fail the test, but it may still be drivable if it doesn't have any dangerous defects. Common reasons for MOT failure include: * Tyre tread depth below 1.6mm* Worn tyres (cuts, bulges, or exposed cords) * Incorrect tyre size or type* Headlight aim or condition* Brake issues (worn pads, discs, fluid leaks) * Suspension wear (worn ball joints, bushings) * Corrosion on structural components* Windscreen damage obstructing vision* Malfunctioning lights* Exhaust emissions exceeding limits
Preparing Your Vehicle for its MOT
While the MOT test is a comprehensive check, a little preparation can go a long way in ensuring a smooth pass. Consider these steps: * Check your tyres: Ensure they have adequate tread depth and are free from damage. * Test your lights: Make sure all lights are working correctly. * Inspect your windscreen: Look for any chips or cracks that might cause a failure. * Check your horn: Ensure it's loud and clear. * Top up fluids: Ensure brake fluid and other essential fluids are at the correct levels. * Review previous MOTs: If you have the history, check for any advisories that might indicate potential future issues.
The Importance of Regular Maintenance
It's vital to reiterate that the MOT test is not a replacement for regular servicing. Regular maintenance, such as oil changes, fluid top-ups, and component checks, will help keep your vehicle in good condition throughout the year and can prevent unexpected failures during the MOT. For example, if you own a motorcycle, services like those offered by Bar-Ash Motorcycles for chain and sprocket fitting, tyre replacement, or engine work are crucial for maintaining its roadworthiness and performance.
Only authorised MOT test centres can carry out MOT tests. These centres are inspected by the Driver and Vehicle Standards Agency (DVSA) and must adhere to strict standards. You can find an authorised test centre on the GOV.UK website. When choosing a centre, consider their reputation and experience, such as the two decades of experience that Roadrunner MOT test centres have in the industry.
Frequently Asked Questions (FAQs)
Q1: How often do I need an MOT test?A1: Your vehicle needs an MOT test annually once it is three years old. The exact date your first MOT is due can be found on your vehicle's registration document (V5C). Q2: Can I drive my car without a valid MOT?A2: You can only drive your car to a pre-booked MOT appointment or to a place of repair. Driving it otherwise can result in a fine and penalty points on your licence. Q3: What is the difference between an MOT and a service?A3: An MOT is a legal requirement to ensure your vehicle is roadworthy. A service is a routine maintenance check to keep your vehicle in good working order and prevent future problems. Q4: Can I do the MOT test myself?A4: No, the MOT test must be carried out by an authorised examiner at an authorised test centre. Q5: What happens if my MOT expires?A5: If your MOT expires, you cannot legally drive your car on public roads until it has passed an MOT test. You will need to arrange for it to be repaired and re-tested, or ensure it is off the road. In conclusion, the MOT test is a vital part of vehicle ownership in the UK. By understanding what the test entails and ensuring your vehicle is well-maintained, you can help guarantee its roadworthiness, contribute to road safety, and avoid unnecessary penalties. Whether you drive a car or a motorcycle, keeping up with your MOT and regular maintenance is key to a safe and legal driving experience.
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