24/12/2003
Windscreen wiper blades are absolutely crucial for maintaining clear visibility on the road, especially during inclement weather. Driving with worn or ineffective wipers is not only a safety hazard but can also lead to an MOT failure. Thankfully, replacing your wiper blades is a surprisingly simple task that most car owners can tackle themselves. This guide will walk you through the process, ensuring you can keep your windscreen crystal clear and your driving experience safe and enjoyable.
Why Replace Your Wiper Blades?
It's recommended to replace your windscreen wiper blades at least once a year, or sooner if you notice any signs of wear and tear. Over time, the rubber on the wiper blade can become hardened, cracked, or torn due to exposure to sunlight, extreme temperatures, and general use. This degradation significantly reduces their effectiveness, leading to:
- Streaky vision: Uneven contact with the windscreen leaves patches of water, impairing your view.
- Chattering or skipping: The blades may judder across the glass instead of gliding smoothly.
- Reduced cleaning power: They simply won't clear the water as efficiently as they should.
- Potential MOT failure: Ineffective wipers are a common reason for a car to fail its MOT test.
Replacing them promptly ensures optimal performance and contributes to a safer driving environment. Don't wait until you're caught in a downpour with useless wipers!
Choosing the Right Wiper Blades
The first step is to ensure you have the correct replacement blades for your vehicle. While some blades are designed for universal fitting, it's always best to confirm compatibility. The easiest way to do this is by using your vehicle's registration number. Many reputable auto parts retailers, such as the RAC Shop, offer online tools where you can input your registration, and they will provide a list of compatible wiper blades. This takes the guesswork out of the process and guarantees you get the right fit.
When selecting new blades, consider:
- Blade Type: There are generally two main types: traditional (with a metal or plastic frame) and aero/flat blades (which have a spoiler integrated into the rubber). Aero blades often offer better performance at higher speeds due to their aerodynamic design.
- Length: Ensure the replacement blades are the correct length for your windscreen. Too short, and they won't cover the necessary area; too long, and they might interfere with each other or the vehicle body.
- Adaptors: Most modern wiper blades come with a variety of adaptors to fit different wiper arm types. Make sure the chosen blade includes the correct adaptor for your car.
How to Fit Windscreen Wiper Blades: Step-by-Step
Fitting new wiper blades is a straightforward process. Here’s a breakdown:
Step 1: Prepare the Wiper Arm
Before you remove the old blade, it's crucial to protect your windscreen. Lift the wiper arm away from the windscreen. To prevent the metal arm from snapping back and potentially cracking the glass, place a folded towel or cloth underneath the arm once it's lifted. This acts as a cushion.
Step 2: Remove the Old Wiper Blade
Wiper blades are usually attached to the wiper arm via a hook-and-clip mechanism. You'll typically see a small plastic tab or clip at the point where the blade connects to the arm. Press this tab or clip firmly to release the locking mechanism. Once released, you should be able to slide the old wiper blade off the hook of the wiper arm. Some blades might require you to twist or lift the blade slightly to disengage it from the arm.
Important Note: Never let the wiper arm snap back onto the windscreen without the blade attached. Always ensure the arm is secured with a towel or by holding it in place.
Step 3: Attach the New Wiper Blade
This is where the adaptors come into play. Most new wiper blades come with several different adaptors. You'll need to select the one that matches the hook on your wiper arm. Consult the instructions that came with your new wiper blades, as they will detail which adaptor to use for different arm types.
Once you've selected the correct adaptor, slide it onto the hook of the wiper arm. Then, align the new wiper blade with the arm and push it firmly onto the hook until you hear or feel a 'click'. This indicates that the blade is securely locked in place. Give it a gentle tug to ensure it's properly attached.
Step 4: Repeat for the Other Blade
If your vehicle has two front wiper blades, repeat steps 1 through 3 for the passenger side wiper blade. Always ensure both blades are securely fitted before using them.
Step 5: Test the New Blades
With the new blades fitted, carefully lower the wiper arms back onto the windscreen. It's a good idea to test them immediately. Spray some water onto the windscreen and operate the wipers. They should clear the water effectively, leaving a streak-free finish. Listen for any unusual noises like chattering or squeaking, which might indicate an improper fit or a faulty blade.
Common Wiper Blade Problems and Solutions
Even with careful installation, you might encounter some issues. Here are a few common problems and their solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Streaking | Dirt on the blade, worn rubber, improper pressure. | Clean the blade, replace if worn, ensure correct fitment. |
| Chattering/Skipping | Dirt on windscreen, bent wiper arm, worn blade, incorrect blade type. | Clean windscreen, straighten arm, replace blade, verify compatibility. |
| Poor contact | Bent wiper arm, wrong blade size/type, worn pressure points. | Straighten arm, ensure correct fitment, replace blade. |
| Noise | Dry glass, dirt on blade, worn blade, poor fit. | Use washer fluid, clean blade, replace blade, check fit. |
Frequently Asked Questions
Q1: How often should I replace my wiper blades?
It is generally recommended to replace your wiper blades every 6 to 12 months, or sooner if you notice any signs of wear such as streaking, skipping, or noise.
Q2: Can I use any wiper blade on my car?
No, you should use wiper blades that are specifically designed or compatible with your vehicle's make, model, and year. Using the wrong size or type can lead to poor performance or damage.
Q3: What's the difference between traditional and aero wiper blades?
Traditional wiper blades have a frame that holds the rubber blade, whereas aero blades are a single piece of rubber with an integrated spoiler. Aero blades tend to offer better performance at higher speeds due to their aerodynamic design, reducing lift.
Q4: My new wiper blades are still streaking. What should I do?
First, ensure the blades are fitted correctly and that the correct adaptor has been used. Check that the wiper arm is not bent. Clean both the windscreen and the wiper blades themselves thoroughly. If the problem persists, the blades may be faulty, and you might need to contact the retailer or consider a different brand.
Q5: How do I clean my existing wiper blades?
You can clean your wiper blades by lifting the wiper arm, then gently wiping the rubber edge with a damp cloth soaked in water or a mild cleaning solution. Ensure they are dry before lowering them back onto the windscreen.
Conclusion
Replacing your windscreen wiper blades is a vital piece of car maintenance that directly impacts your safety. By following these simple steps, you can ensure your wipers are always in optimal condition, providing you with clear vision and peace of mind on every journey. If your car is due for a service or MOT, consider booking with RAC for expert assistance. Drive safely!
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