Understanding what is checked during an MOT is crucial for every driver, ensuring your vehicle remains safe and roadworthy. An MOT test, compulsory for most vehicles over three years old, examines various components to ascertain they meet legal standards. This guide aims to demystify the process by providing a clear and comprehensive overview of what is checked during an MOT. By the end, you'll be well-versed in the essential checks and why they matter for your vehicle's performance and safety.
Need further assistance?
Introduction to MOT Checks
Importance of an MOT Test
The MOT test is vital for ensuring that vehicles on the road meet the minimum safety and environmental standards. By law, most vehicles over three years old in the UK must undergo this annual test. Failing to comply can result in hefty fines and even prosecution. More importantly, an MOT test can highlight potential issues that may not be immediately apparent. Fixing these problems early can prevent more severe and costly repairs down the line. Additionally, a valid MOT certificate boosts your vehicle’s resale value, offering peace of mind to potential buyers. Overall, the MOT test plays a crucial role in maintaining road safety and ensuring that your vehicle remains in optimal condition. An MOT tester examines various components of the vehicle, such as towbars, fuel systems, exhaust emissions, lights, steering, and suspension, to ensure it is roadworthy and complies with legal standards.
Legal Requirements for MOT
In the UK, the MOT test is a legal requirement for most vehicles over three years old. This annual test ensures that vehicles meet the minimum safety and environmental standards set by the government. Driving without a valid MOT certificate is illegal and can lead to fines of up to £1,000. Additionally, an invalid or expired MOT can invalidate your insurance, leaving you unprotected in the event of an accident. The test covers various aspects of the vehicle, including lights, tyres, brakes, and emissions, to ensure it is safe for both the driver and other road users. It's important to note that even if your vehicle passes the MOT, regular maintenance is essential to keep it running smoothly. Compliance with MOT requirements is not just about avoiding penalties; it's about contributing to overall road safety.
Frequency of MOT Tests
In the UK, the frequency of MOT tests is straightforward: most vehicles are required to undergo an MOT test annually once they are over three years old. This yearly check ensures that your vehicle continues to meet the necessary safety and environmental standards. For new vehicles, the first MOT test is due three years after the date of registration. After this initial test, an MOT is required every 12 months. Some vehicles, such as taxis and ambulances, may have different requirements and might need more frequent testing due to their higher usage. It is crucial to keep track of your MOT due date, as driving without a valid MOT certificate is illegal and can result in fines and other penalties. Many vehicle owners find it helpful to set reminders or use online services to receive notifications about their upcoming MOT due date.
Exterior Vehicle Checks
Tyres and Wheels
During an MOT test, tyres and wheels undergo a thorough inspection to ensure they meet safety standards. The test checks the tyre tread depth, which must be at least 1.6mm across the central three-quarters of the tyre. Tyres with insufficient tread depth are illegal and can compromise vehicle handling and braking performance, especially in wet conditions. Additionally, the tyres are examined for any cuts, bulges, or other signs of damage that could lead to a blowout. The condition of the wheels is also assessed, focusing on any cracks, distortion, or damage that could affect the vehicle’s stability. Proper wheel alignment and balance are crucial for maintaining control and ensuring even tyre wear. Ensuring your tyres and wheels are in good condition not only helps you pass the MOT but also enhances your vehicle’s overall safety and performance on the road. For vehicles first used on or after 1 January 2012, the tyre pressure monitoring system (TPMS) is also inspected to ensure the warning light is operational and compliant with MOT requirements.
Lights and Indicators
Lights and indicators are critical components reviewed during an MOT test to ensure your vehicle’s visibility and signalling capabilities. The test examines all exterior lights, including headlights, tail lights, brake lights, and fog lights, to confirm they are functioning correctly. Each light must emit the appropriate colour and intensity, and their alignment should be accurate to prevent blinding other drivers. Indicators are also scrutinised to ensure they flash at the correct rate and are visible from a reasonable distance. Furthermore, the condition of the light lenses is checked for any cracks, clouding, or damage that could impair their effectiveness. Functional lights and indicators are essential for safe driving, as they help communicate your intentions to other road users, especially in adverse weather conditions or during night-time driving. Ensuring all lights and indicators are in working order not only helps you pass the MOT but also contributes significantly to road safety. The inspection also includes checking the dashboard warning lights, such as the brake fluid warning lights, to ensure they are functioning properly.
Windscreen and Wipers
The condition of your windscreen and wipers is another crucial aspect checked during an MOT test. The windscreen is evaluated for any damage, such as chips or cracks, which could impair the driver's view. Specifically, any damage larger than 10mm in the driver's line of sight or 40mm elsewhere on the windscreen can result in a failed MOT. The windscreen wipers are tested to ensure they are in good working order and capable of clearing the screen effectively. This includes checking for any signs of wear, such as splits or tears in the wiper blades. The washers are also inspected to confirm they dispense fluid correctly, as they play a vital role in maintaining clear visibility. Functional windscreen and wipers are essential for safe driving, particularly in adverse weather conditions. Ensuring these components are in good condition not only helps you pass the MOT but also enhances your overall driving safety.
Interior Vehicle Checks
Seats and Seatbelts
During an MOT test, both seats and seatbelts undergo meticulous inspection to ensure they provide the necessary safety for all occupants. The seats are checked for secure anchorage, meaning they must be firmly attached to the vehicle's structure. Any signs of damage or excessive wear that could compromise their integrity will be noted. Seatbelts are examined for functionality, including the locking mechanism and the retracting system. Each seatbelt must fasten securely and retract smoothly. Additionally, the webbing is inspected for any cuts, frays, or other signs of damage that could weaken its strength. Inertia reels, which allow seatbelts to extend and retract, are tested to ensure they work correctly. Functional seats and seatbelts are essential for protecting occupants in the event of a collision. Ensuring these components are in good condition not only helps you pass the MOT but also enhances the overall safety of your vehicle.
Mirrors and Horn
Mirrors and the horn are crucial components checked during an MOT test to ensure they are in proper working order and contribute to road safety. The test examines all mirrors, including the rear-view mirror and both side mirrors, to confirm they are securely mounted and provide a clear view. Any cracks, damage, or significant obstruction in the mirrors that could impair the driver's visibility will be noted. The horn is tested to ensure it emits a loud and clear sound that is effective in alerting other road users. A functional horn is essential for preventing accidents and ensuring safety on the road. If the horn produces a weak or muffled sound, it can lead to an MOT failure. Ensuring your mirrors and horn are in good condition not only helps you pass the MOT but also enhances your ability to drive safely and communicate effectively with other drivers.
Dashboard Warning Lights
Dashboard warning lights are crucial indicators of your vehicle’s health and are thoroughly checked during an MOT test. These lights alert the driver to any potential issues with the vehicle’s systems, such as the engine, brakes, airbags, or battery. During the test, the examiner will turn on the ignition to ensure that all relevant warning lights illuminate and then extinguish as expected. Persistent warning lights can indicate underlying problems that need addressing and may result in an MOT failure. For instance, an illuminated brake warning light could signify a serious issue with the braking system, which is critical for safety. Ensuring that all dashboard warning lights function correctly and that any persistent alerts are resolved before the test is essential. Not only will this help you pass the MOT, but it also ensures that your vehicle remains in optimal condition, providing a safer driving experience. Additionally, the inspection of electronic stability control is part of the overall assessment of the vehicle's electrics and safety systems during the MOT test.
Need further assistance?
Why should I choose Fixter?
Under the Bonnet
Engine and Battery
During an MOT test, the engine and battery undergo a detailed inspection to ensure they are functioning correctly. The engine is assessed for any signs of leaks, unusual noises, or excessive emissions. The examiner will also check the engine oil level and look for any obvious issues that could affect performance or safety. The battery is inspected to ensure it is securely mounted and free from corrosion or damage. Additionally, the connections are examined to guarantee they are tight and clean, which is essential for reliable starting and electrical system performance. A faulty battery can lead to starting issues and electrical failures, which could result in an MOT failure. Regular maintenance of the engine and battery, including timely oil changes and battery checks, can help you pass the MOT and ensure your vehicle remains in optimal condition. Proper care of these components is crucial for reliable and safe vehicle operation.
Brake Fluid and Oil Levels
Brake fluid and oil levels are critical components checked during an MOT test to ensure your vehicle's safety and performance. The brake fluid is essential for the proper functioning of the braking system, enabling effective stopping power. During the test, the examiner will check the brake fluid level to ensure it is within the recommended range. Low brake fluid can indicate a potential leak or excessive wear on the brake components, which could lead to brake failure. Similarly, the engine oil level is inspected to confirm it is adequate for proper engine lubrication and cooling. Insufficient oil levels can cause increased friction and overheating, leading to severe engine damage. Regularly checking and maintaining proper brake fluid and oil levels can help you pass the MOT and ensure your vehicle operates smoothly. Keeping these fluids at the correct levels is crucial for the longevity and reliability of your vehicle.
Steering and Suspension
Steering and suspension are critical systems checked during an MOT test to ensure your vehicle's safety and handling. The steering system is examined for any signs of wear or damage that could affect control. This includes checking the steering wheel, column, and linkages for excessive play or stiffness. Proper steering is vital for accurate and responsive handling, especially during emergency manoeuvres. The suspension system, which includes shock absorbers, springs, and struts, is also inspected. These components are assessed for wear, damage, and effectiveness in absorbing road shocks. Faulty suspension can lead to poor handling, uneven tyre wear, and an uncomfortable ride. Any issues with these systems can result in an MOT failure, as they play a crucial role in maintaining vehicle stability and safety. Regular maintenance and timely repairs of the steering and suspension systems can help you pass the MOT and ensure a smooth, safe driving experience.
Under the Vehicle
Exhaust System
The exhaust system is an essential aspect checked during an MOT test to ensure it meets safety and environmental standards. The system is inspected for any signs of leaks, corrosion, or damage that could affect its performance. A well-functioning exhaust system helps control emissions, minimising the release of harmful gases into the environment. The examiner will also check the exhaust’s noise levels, ensuring it operates within acceptable limits. Excessive noise can indicate issues such as a damaged muffler or exhaust pipe. Additionally, the exhaust system is assessed for secure mounting and proper alignment, as loose components can lead to rattling and reduced efficiency. Any faults in the exhaust system can lead to an MOT failure, highlighting the importance of regular maintenance. Keeping the exhaust system in good condition not only helps you pass the MOT but also ensures your vehicle operates efficiently and environmentally responsibly. An MOT test centre conducts comprehensive inspections of the exhaust system to ensure all components meet legal standards.
Fuel System
The fuel system is a critical component checked during an MOT test to ensure it operates safely and efficiently. The system is inspected for any signs of leaks, corrosion, or damage that could pose a risk of fire or reduce fuel efficiency. This includes examining the fuel tank, fuel lines, and connections to ensure they are secure and free from any issues. The fuel cap is also checked to confirm it seals correctly, preventing fuel vapour leaks that could harm the environment. Proper functioning of the fuel system is essential for maintaining optimal engine performance and fuel economy. Any faults or leaks in the fuel system can lead to an MOT failure, emphasising the importance of regular inspections and maintenance. Keeping the fuel system in good condition not only helps you pass the MOT but also ensures your vehicle runs smoothly and safely, avoiding potential hazards on the road.
Chassis and Frame
The chassis and frame are fundamental components that are thoroughly inspected during an MOT test to ensure the structural integrity of your vehicle. The examiner checks for any signs of corrosion, cracks, or damage that could compromise the vehicle's safety. The chassis must be free from excessive rust, particularly in areas that support critical components like the suspension and steering systems. Any significant deterioration can weaken the vehicle's structure, making it unsafe to drive. Additionally, the frame is inspected for any deformations or damage resulting from accidents or wear and tear. Proper alignment and secure mounting of all attached components are also assessed to ensure stability and safety. Regular maintenance and timely repairs of any issues with the chassis and frame are essential for passing the MOT. Ensuring these structural components are in good condition not only helps you pass the test but also guarantees the overall safety and longevity of your vehicle.
Need further assistance?
