If your wiper arm is corroded, it’s crucial to address the issue promptly to ensure clear visibility during adverse weather conditions. Corrosion can impair the functionality of your wipers, leading to streaks or incomplete cleaning of your windshield. Here’s a step-by-step guide on what you should do if you notice corrosion on your wiper arm.

How to Identify Corrosion on Wiper Arms?

Corrosion on wiper arms can manifest as rust, discoloration, or pitting on the metal surface. To check for corrosion:

• Inspect visually: Look for rust or flaky metal on the wiper arms.
• Feel the surface: Run your fingers along the arm to detect roughness.
• Check wiper performance: Notice if the wipers leave streaks or skip sections.

How to Clean Corroded Wiper Arms?

Cleaning your corroded wiper arms can sometimes restore their functionality. Follow these steps:

1. Remove the wiper arm: Use a wrench to loosen the nut at the base and gently lift the arm off its mount.
2. Clean with a rust remover: Apply a rust remover or a mixture of vinegar and baking soda to the corroded areas.
3. Scrub gently: Use a wire brush or sandpaper to scrub away rust.
4. Rinse and dry: Wash the arm with water and dry it thoroughly.
5. Apply a protective coating: Use a rust-inhibiting spray or paint to prevent future corrosion.

When Should You Replace Wiper Arms?

If cleaning does not resolve the issue, or if the corrosion has caused significant damage, replacement might be necessary. Consider replacing your wiper arms if:

• Severe rusting: The metal is severely pitted or weakened.
• Poor performance: Wipers do not clear the windshield effectively even after cleaning.
• Structural damage: The arm is bent or misshapen.

How to Replace Corroded Wiper Arms?

Replacing wiper arms is a straightforward process. Here’s how you can do it:

1. Purchase new wiper arms: Ensure they are compatible with your vehicle model.
2. Remove old arms: Use a wrench to remove the nut securing the arm to the pivot.
3. Install new arms: Position the new arm on the pivot and tighten the nut securely.
4. Test the wipers: Turn on the wipers to ensure they function correctly.

Tips for Preventing Wiper Arm Corrosion

Preventive measures can extend the life of your wiper arms:

• Regular cleaning: Clean the wiper arms during each car wash.
• Protective coatings: Apply a rust-inhibiting spray periodically.
• Inspect regularly: Check for early signs of rust and address them promptly.

People Also Ask

How Can I Maintain My Wiper Blades?

To maintain your wiper blades, clean them regularly with a damp cloth to remove dirt and debris. Replace them every 6-12 months or sooner if they show signs of wear.

What Causes Wiper Arm Corrosion?

Wiper arm corrosion is typically caused by exposure to moisture, road salt, and environmental pollutants. Regular cleaning and protective coatings can minimize corrosion.

Can I Use WD-40 on Wiper Arms?

Yes, you can use WD-40 to clean and protect wiper arms. It helps remove rust and provides a protective layer to prevent further corrosion.

How Do I Know If My Wiper Motor Is Failing?

Signs of a failing wiper motor include slow or non-moving wipers, unusual noises, and wipers that stop in the wrong position. If you notice these issues, consider having your motor inspected.

How Often Should I Inspect My Wiper System?

Inspect your wiper system every few months, especially before and after winter, to ensure all components are in good working condition.

Conclusion

Addressing corroded wiper arms promptly is essential for maintaining clear visibility and safe driving conditions. By cleaning, replacing, or taking preventive measures, you can ensure your wipers function effectively. If you’re unsure about the process, consult a professional mechanic for assistance. For more car maintenance tips, explore our articles on vehicle safety and upkeep.