Windscreen wipers are a small but important part of your car’s safety, especially during your MOT. Many vehicles surprisingly fail their MOT because of worn or faulty wipers. This can reduce visibility in wet conditions.
In this article, we will look at the main reasons why MOT tests mark wipers as a failure and provide practical tips to make sure yours are in good working order for a smooth test.
Key Takeaways
- Windscreen wipers are critical for visibility during adverse weather, and their condition is closely evaluated in MOT tests to ensure safety.
- Common reasons for MOT failure related to wipers include worn blades and insufficient washer fluid; regular maintenance and checks can prevent these issues.
- Inspect all components of the windscreen wiper system, including blades, washer fluid, and arms, before an MOT test to avoid unexpected failures.
- Inspect the windscreen for cracks and chips; damage over 10mm in the driver’s line of sight or 40mm elsewhere can cause failure.
- Keeping the windscreen clean and free from dirt or debris improves visibility and ensures wipers work effectively.
- Regular pre-MOT checks on wipers, washer fluid, and windscreen condition improve safety, prevent test failures, and reduce costly repairs.
Importance of Windscreen Wipers in MOT Tests
Windscreen wipers may seem like a small detail, but they’re essential for safe driving, especially when the weather gets bad. Imagine trying to drive through a heavy rainstorm without working wipers; it’s not just uncomfortable, it’s dangerous.
That’s why the MOT test focuses on how well your wipers work and where they are positioned. They need to clear your windscreen effectively and keep your view clear.
Inspectors look for wear and damage, such as cracks, tears, or incorrectly sized blades. Any of these issues can result in an MOT failure. Regularly checking your wiper blades, arms, and washer fluid levels is an easy way to avoid problems.
However, clear visibility goes beyond just wipers. A clean windscreen, free of dirt and debris on both the inside and outside, is also crucial. Using ammonia-free glass cleaners helps protect the glass while improving your view of the road. After all, safe driving relies on both functional wipers and a clean, well-maintained windscreen.
Common Windscreen Wiper Issues That Can Lead to MOT Failure
Keeping your windscreen wipers in good condition isn’t just about passing your MOT; it’s also about staying safe on the road. Even minor problems can lead to a failure, as MOT inspectors check that your wipers and washer system keep the screen clear at all times.
1. Worn Wiper Blades
Over time, wiper blades wear out from regular use and exposure to the elements. Worn blades may streak or leave patches on the windscreen, which can result in failing the MOT.
Replacing your blades every six to twelve months helps maintain clear visibility and smooth operation.
2. Low or Blocked Washer Fluid
A common reason for MOT failure is not having enough washer fluid. Blocked jets or an empty reservoir reduce your ability to clean the windscreen effectively. Regularly topping up and checking the washer system keeps your wipers functioning properly.
3. Weather and Driving Conditions
Wiper lifespan is affected by rain, snow, ice, and general driving conditions. Harsh weather, especially in winter, can wear out blades faster than usual. Regular inspections and timely replacements help avoid inconvenient and costly MOT issues.
4. Regular Function Checks
Even after replacing blades or topping up the washer fluid, it’s important to test your wipers regularly.
Making sure they sweep the screen properly is a small step that greatly improves safety and ensures you meet MOT requirements.
By staying on top of these simple maintenance tasks, you not only increase your chances of passing the MOT test but also keep yourself and your passengers safer in all driving conditions.
How to Inspect Your Windscreen Wipers Before an MOT Test
Conducting a thorough inspection of your windscreen wipers before an MOT test can save you from unexpected failures. The inspection process involves checking the wiper blades, testing the washer fluid, and inspecting the wiper arms, each playing a vital role in effective operation.
Start by checking your wiper blades for signs of wear and tear. Ensure the washer fluid is topped up and the washer jets are not blocked.
Finally, inspect the wiper arms for any damage or corrosion. These steps ensure your windscreen wipers are in top condition for your MOT test.
Checking Wiper Blades
Wiper blades are your first line of defence for maintaining clear visibility. Signs of wear include:
- Streaking
- Skipping
- Squeaking
- Smearing on the windscreen
- Rubber that appears cracked or brittle
If you notice any of these signs, it’s time to replace your wiper blades.
Testing Windscreen Washer Fluid
Adequate washer fluids are essential for the proper functioning of your windscreen wipers and windscreen washers. Many cars fail the MOT test due to low washer fluid levels. If unsure how to fill it, refer to a guide or video on using screenwash.
Ensure the washer jets are not blocked and the fluid is sprayed evenly across the windscreen. This simple check can help you avoid an unnecessary MOT failure.
Inspecting Wiper Arms
Wiper arms must be securely attached to the vehicle for reliable operation. Check them for any signs of wear or damage, as corrosion can hinder their functionality during an MOT test. Regular inspections are crucial.
Wiper arms play a critical role in ensuring windscreen wipers function correctly, providing a clear view of the road. Address any issues promptly to avoid a failed MOT test. Regular inspections and timely repairs help maintain overall effectiveness.
Steps to Replace Faulty Windscreen Wipers
Replacing faulty windscreen wipers is straightforward and can save you from an MOT failure. Lift the wiper arms to access the mechanism that secures the blades.
Ensure you have the correct size for your vehicle, found in the owner’s manual or through a wiper size guide.
To attach the new blades:
- Follow the manufacturer’s instructions, ensuring any clips are securely in place.
- Once mounted, gently return the wiper arms to the glass.
- Perform a test swipe to confirm they’re functioning properly.
This simple yet effective process helps you maintain clear visibility and pass your MOT test with flying colours.
Additional Factors Affecting Windscreen Visibility in MOT Tests
While windscreen wipers are crucial, other factors can affect your visibility during an MOT test:
- The washer system must deliver sufficient fluid for clear visibility.
- Using the right type of washer fluid is essential for optimal performance.
- Some products may not be suitable for certain climates, so choose the appropriate fluid for your needs.
Addressing these factors helps maintain clear visibility and pass your MOT test.
Windscreen Cracks and Chips
Cracks and chips in the windscreen can significantly impact the outcome of an MOT test:
- A chip over 10mm in the driver’s line of sight can lead to failure.
- Cracks larger than 40mm anywhere on the windscreen will also cause failure.
- Even small chips can develop into larger cracks if not addressed promptly. A crack can worsen the situation if left unattended.
Damage in the windscreen’s zone A exceeding 10mm in diameter can result in an MOT failure. Ensuring your windscreen is free from cracks and chips is essential for clear visibility and passing your MOT test. For effective windscreen repairs, addressing any damage promptly is crucial.
Cleaning the Windscreen
A clean windscreen is vital for clear visibility and successful MOT results. To maintain windscreen clarity:
- Use appropriate cleaners.
- Avoid ammonia-based products to keep the windscreen clear.
- Regularly clean both the inside and outside to prevent visibility issues.
A clean windscreen enhances visibility and ensures your wipers function effectively. Maintaining it is a simple yet effective way to improve your chances of passing the MOT test. Additionally, keeping your windscreen clean can further enhance your visibility.
Other Critical Areas to Check Before an MOT Test
Your tyres do more than keep your car moving; they are an important safety feature and a major focus of the MOT.
Driving on tyres with a tread depth below the legal minimum of 1.6mm across the central three-quarters is not just unsafe; it is illegal, and fines can reach up to £2,500. In serious cases, it can even lead to penalty points.
Keeping your tyres in good shape is not only about avoiding a fine. Proper tread improves grip, reduces stopping distances, and keeps you, your passengers, and other road users safe.
Checking your tyres before an MOT is a simple step that can save time, money, and stress while helping ensure a smooth, successful test.
All vehicle lights should be checked prior to an MOT test, including:
- Headlights
- Sidelights
- Indicators
- Fog lights
- Brake lights
- Number plate lights
Modern cars often indicate defective exterior lights through dashboard warning lights. A persistent display suggests a likelihood of MOT failure. Resolve any dashboard warning lights promptly before the test to avoid situations where the car fails to start.
A professional technician at Ivydene Garage Ltd. can help check for issues indicated by warning lights and ensure your vehicle is MOT-ready. Regular checks and timely repairs can help you avoid the inconvenience and cost of a failed MOT test.
Why Choose Ivydene Garage Ltd. for Your MOT Needs
Since 1981, Ivydene Garage Ltd. has provided trusted, family-run automotive care services in Ashford. With over 40 years of experience and more than 32 years as a Bosch Car Service centre, we offer expert MOT testing and a full range of vehicle services.
Whether it’s Class 4 MOTs for cars, light vans, or motor caravans up to 3 tonnes, our team of skilled technicians is dedicated to keeping your vehicle safe, reliable, and roadworthy.
We use the latest diagnostic equipment to service many makes and models, combining technical know-how with personal care. Serving Ashford and the surrounding areas, Ivydene Garage Ltd. delivers professional, high-quality automotive services you can trust.
For a smooth, hassle-free MOT experience, book your appointment with Ivydene Garage Ltd. today and enjoy peace of mind knowing your vehicle is in expert hands.
Frequently Asked Questions
How often should I replace my wiper blades?
You should replace your wiper blades every six months to a year, depending on how often you use them and the weather conditions they face. Regular checks can help ensure optimal visibility when driving.
Can low washer fluid levels cause an MOT failure?
Yes, low washer fluid levels can cause an MOT failure because they are crucial for ensuring a clear view while driving.
What size wiper blades do I need for my vehicle?
To determine the correct size wiper blades for your vehicle, consult your owner’s manual or use a wiper size guide. This will ensure you select the appropriate dimensions for optimal performance.
How can I prevent chips and cracks in my windscreen from causing an MOT failure?
To prevent chips and cracks in your windscreen from causing an MOT failure, address any damage promptly, particularly if it’s over 10mm in the driver’s line of sight or larger than 40mm elsewhere on the windscreen. Taking these precautions will help ensure your vehicle passes the inspection.
What additional services does Ivydene Garage Ltd. offer besides MOT testing?
Ivydene Garage Ltd. offers a variety of services beyond MOT testing. These include air conditioning checks, clutch replacement, tyre services, diagnostics, DSG and automatic gearbox repairs, cam belt and exhaust replacement, and more. This way, your vehicle gets complete care in one location.
Conclusion
Keeping your windscreen wipers in good shape and ensuring clear visibility are simple but important steps for passing your MOT. Regularly check and replace wiper blades, refill washer fluid, inspect wiper arms, and keep the windscreen clean.
These actions can prevent small issues from becoming MOT failures. Cracks, chips, and overall cleanliness also help ensure a smooth test.
By staying on top of your vehicle’s maintenance, you make the MOT process easier and less stressful.
For trustworthy MOT testing and expert car care, Ivydene Garage Ltd. brings decades of experience and a focus on quality. Visit our garage today to keep your vehicle safe, compliant, and ready for the road.