04/07/2015
The Ministry of Transport (MOT) 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. The primary purpose of the MOT is to enhance road safety and reduce the number of vehicles causing environmental pollution. Failing to have a valid MOT certificate can result in fines and your vehicle being prohibited from being driven on public roads.

What Does an MOT Test Check?
An MOT test is a comprehensive inspection that covers various aspects of your vehicle. It's not a check of the mechanical condition of the engine, gearbox, or clutch. Instead, it focuses on safety and environmental compliance. Here's a breakdown of the key areas examined:
1. Lights
All lights on your vehicle, including headlights (both main and dipped beam), taillights, brake lights, indicators, and hazard lights, are checked for correct operation, brightness, and colour. Faulty or dim lights can significantly impair visibility for both the driver and other road users, especially during adverse weather conditions or at night. Ensure your bulbs are the correct type and wattage, and that they are securely fitted.
2. Steering and Suspension
The steering and suspension systems are crucial for maintaining control of your vehicle. The tester will check for excessive play in the steering wheel, worn steering components like track rod ends and ball joints, and any damage or corrosion to the suspension springs, shock absorbers, and suspension arms. A compromised steering or suspension system can lead to unpredictable handling and a reduced ability to navigate safely.
3. Brakes
Your braking system is arguably the most critical safety component. The MOT test will assess the effectiveness of your brakes, checking for wear on brake pads and discs, leaks in the brake lines, and the condition of the brake fluid. The handbrake (parking brake) is also tested for its ability to hold the vehicle stationary on a gradient. Inefficient brakes are a major cause of accidents, so this is a thorough check.
4. Tyres
Tyres are your vehicle's only point of contact with the road. The MOT inspects tyres for tread depth, which must be a minimum of 1.6mm across the central three-quarters of the breadth of the tyre. They also check for cuts, bulges, or any other damage that could compromise their integrity. The correct tyre pressure is also important for handling and fuel efficiency.
5. Seatbelts
All fitted seatbelts, including those for the driver, front passenger, and any rear passengers, are checked for wear, function, and proper locking mechanisms. The condition of the anchor points is also inspected. Seatbelts are a life-saving device, and their proper functioning is paramount.
6. Body Structure and Chassis
The tester examines the vehicle's body for excessive corrosion or damage that could affect its structural integrity. Key areas like the chassis, suspension mounting points, and sills are inspected for rust or damage that might weaken the vehicle. Significant structural issues can make a vehicle unsafe to drive.
7. Exhaust Emissions
To combat air pollution, vehicles undergo an emissions test. The test measures the level of pollutants emitted by your exhaust system. The specific limits vary depending on the age and fuel type of the vehicle. A poorly maintained exhaust system or engine can result in high emissions, failing the test and contributing to environmental damage.
8. Windscreen and Wipers
The driver's view of the road is essential. The MOT checks the windscreen for chips or cracks in the driver's line of sight that could impair visibility. The condition and effectiveness of the windscreen wipers and washers are also tested to ensure they can clear the screen adequately.
9. Horn
The horn must be operational and produce a consistent, loud sound. It's a vital tool for alerting other road users to your presence in potentially dangerous situations.
10. Fuel System
The fuel pipes and connections are checked for leaks. Any signs of fuel leakage pose a significant fire risk.
11. Doors and Mirrors
Doors must open and close properly from both the inside and outside. Mirrors must be present, secure, and in good condition, providing adequate visibility to the rear and sides.
12. Seats
While the comfort of seats isn't tested, their security and condition are. Seats must be securely fixed to the vehicle's frame.
13. Registration Plate
The registration plate must be securely attached, legible, and meet specific design and illumination requirements.
What Happens If Your Vehicle Fails the MOT?
If your vehicle fails the MOT test, you will receive a refusal of an MOT test certificate. The report will detail the reasons for failure. You can typically continue to drive your vehicle if it has a valid MOT certificate and the failure items are not considered 'dangerous'. However, if any defects are listed as 'dangerous', you must not drive the vehicle until it has been repaired. You have a grace period of 10 working days to get the necessary repairs done and have your vehicle re-tested. If you fail to do so, you may face penalties.
Preparing Your Vehicle for its MOT
While you can't predict every issue, there are several things you can do to maximise your chances of passing the MOT:
- Check your lights: Ensure all bulbs are working and are the correct type.
- Tyre pressure and tread: Inflate tyres to the correct pressure and check the tread depth.
- Windscreen wipers and washers: Make sure they clear the screen effectively and the fluid reservoir is topped up.
- Brake fluid: Check the brake fluid level.
- Horn: Test that it works.
- General condition: Look for any obvious signs of excessive corrosion or damage.
MOT Test vs. Service
It's a common misconception that an MOT test is a full mechanical service. This is not the case. An MOT is a safety and environmental inspection, whereas a service is a preventative maintenance check that involves changing fluids, filters, and inspecting mechanical components that are not covered by the MOT. A regular service can help prevent issues that might lead to an MOT failure.
Frequently Asked Questions
Q1: How often do I need an MOT?
Vehicles over three years old require an MOT test annually.
Q2: Can I drive my car without an MOT?
If your car is over three years old and its MOT has expired, you can only drive it to a pre-booked MOT appointment. Otherwise, it is illegal to drive it on public roads.
Q3: What if my car fails the MOT?
If your car fails, you'll receive a report detailing the issues. Minor faults can often be rectified quickly, while dangerous faults mean you cannot drive the car until repairs are made.
Q4: Where can I get an MOT test?
MOT tests can be carried out at authorised MOT testing centres, usually garages and dealerships.
Q5: Does the MOT check the engine?
No, the MOT does not check the mechanical condition of the engine, gearbox, or clutch. It focuses on safety and emissions.
Conclusion
The MOT test is a vital part of ensuring your vehicle is safe for the road and meets environmental standards. By understanding what is checked and performing basic pre-MOT checks, you can increase your vehicle's chances of passing and contribute to safer roads for everyone. Remember, a well-maintained vehicle is not only safer but also more reliable and often more fuel-efficient.
If you want to read more articles similar to MOT Test: What To Expect, you can visit the MOT category.
