.jfif)
Getting your vehicle through its MOT test is essential to ensure roadworthiness and legal compliance. However, many drivers face MOT failures due to common, easily avoidable issues. By understanding these common faults and knowing how to fix them, you can save both time and money while ensuring your car remains safe on the road. In this blog, we will explore the most frequent causes of MOT failures and offer tips on how to resolve them.
1. Faulty Lights and Indicators
Lighting and signalling faults are one of the leading reasons for MOT test failures. This includes malfunctioning headlights, brake lights, and indicators. Inspect your car's lights regularly to ensure all are working properly. Check both the front and rear lights, including number plate illumination, as a faulty bulb could lead to failure.
Fix: Replacing a broken bulb is often a simple task that can be done at home. Make sure you have the correct bulbs for your car and follow the manufacturer's instructions to fit them.
2. Tyre Wear and Tear
Tyres must meet legal requirements for tread depth and overall condition to pass the MOT. The minimum tread depth in the UK is 1.6mm. If your tyres are worn, cracked, or damaged, you are likely to fail the test. Additionally, the tyres must be correctly inflated and free from any cuts or bulges.
Fix: Regularly check your tyre pressure and tread depth. A handy tip is to use a 20p coin: insert it into the tread grooves, and if the outer rim is visible, it’s time for a replacement.
3. Brake System Problems
Brakes are a critical component for both vehicle safety and passing the MOT. Worn brake pads, discs, or malfunctioning handbrakes can lead to an automatic failure. It's important to regularly monitor the performance of your braking system.
Fix: Listen for any unusual noises when braking and have your brakes serviced regularly. If you suspect brake wear, visit a mechanic to have the pads and discs inspected and replaced if necessary.
4. Suspension Issues
Faulty suspension is another major cause of MOT failures. Issues can include worn shock absorbers or springs. A faulty suspension can lead to an uncomfortable ride and reduce the vehicle's ability to handle road conditions effectively.
Fix: Keep an ear out for any knocks or unusual noises when driving over bumps or uneven surfaces. If your car feels unstable or you notice excessive bouncing, have the suspension checked by a professional.
5. Windscreen and Wiper Problems
Your car’s windscreen must be free from significant damage to pass the MOT. Chips or cracks in the driver’s line of vision could result in a failure. Additionally, windscreen wipers must be in good condition to clear the windscreen effectively.
Fix: If you notice any damage to the windscreen, have it repaired or replaced before the MOT. Ensure your wipers are working smoothly and replace them if they leave streaks or miss parts of the screen when in use.
6. Exhaust and Emission Levels
Emissions are tightly controlled, and a faulty exhaust system can cause high emission levels, leading to a failed MOT. This is particularly important for diesel cars, where stricter standards apply. Additionally, a noisy exhaust may also be flagged during the test.
Fix: Regular servicing can help identify issues with your exhaust system early. If you notice increased engine noise or visible smoke, it's worth having a mechanic check for exhaust leaks or emission problems before your test.
Conclusion
Failing an MOT can be frustrating, but with a little proactive maintenance, you can avoid many common pitfalls. Regularly checking your car's lights, tyres, brakes, suspension, and exhaust system ensures it remains safe and roadworthy. A quick pre-test inspection could be the difference between a pass and a costly failure. By addressing these common issues, you'll keep your car in top condition and help avoid unnecessary MOT failures.
