How to Replace Wiper Blades Correctly: Step-by-Step Guide
Before you replace your wiper blades
Before removing the old blades, check the following:
- Make sure the new wiper blades are the correct ones for your vehicle.
- Check which fixing system your wiper arm uses.
- Clean the windshield before installation.
- Check whether the wipers need to be moved to the service position or 12 o'clock position.
On some vehicles, the bonnet prevents the wiper arms from being lifted while they are in their normal parked position. In this case, follow the vehicle manufacturer's instructions to move the wipers to the service position.
Important: Never let a bare wiper arm fall onto the windshield. The arm can damage the glass.
How to replace wiper blades step by step
The exact installation method depends on the wiper blade and fixing system, but the basic replacement process is similar.
1. Lift the wiper arm
Carefully lift the wiper arm away from the windshield. If necessary, move it to the vehicle's service position first.
2. Remove the old wiper blade
Release the locking mechanism and slide the old blade out of the wiper arm. The removal method depends on the fixing system. For example, a U-hook blade is removed by sliding it towards the axis of the wiper arm, while a Push Button blade is released by pressing the locking button.
3. Inspect the wiper arm
Before installing the new blade, check the wiper arm for corrosion, damage or other imperfections. If you find anything that could affect the safety or operation of the wiper system, seek professional advice.
4. Protect the windshield
Gently place the wiper arm back into position while preparing the new blade. Do not leave the arm standing on its own or allow it to hit the windshield.
5. Install the new wiper blade
Lift the wiper arm again and attach the new DENSO blade using the correct fixing method. Make sure the blade is fully engaged and securely locked into place. Do not force the connection. If it does not fit correctly, check that you have the correct blade and fixing system.
6. Lower the wiper arm carefully
Once the blade is securely installed, gently lower the wiper arm onto the windshield. Repeat the process for the other wiper blade if required.
7. Test the wiper system
Use the windshield washer fluid and operate the wipers. Check that the blades move smoothly and wipe the windshield correctly. Make sure there are no areas left unwiped and that the blades are securely attached.
DENSO wiper blade installation videos
The installation method varies depending on the blade type and fixing system. Watch the relevant DENSO video for a visual demonstration.
The video shows how to remove the old U-hook blade and install a new DENSO Hybrid wiper blade. The new blade is secured by sliding it onto the mount and closing the locking latch.
This video demonstrates the F16/F19 Push Button installation system. The old blade is released by pressing the square locking button, while the new DENSO Flat blade is slid onto the wiper arm until it clicks into place.
The video demonstrates how to remove and install DENSO conventional wiper blades using the U-hook fixing system. The new blade is slid onto the wiper arm until it clicks securely into place.
The video shows how to remove the old wiper blade and install a new DENSO ClearJet Wiper Blade equipped with the AQB-A adapter. The new blade is secured by sliding it onto the mount until it locks securely into place.
For other DENSO fixing systems, refer to the relevant DENSO installation instructions.
Common mistakes to avoid
A few simple precautions can prevent damage and ensure the new blades work correctly.
- Do not remove the old blade before checking the new one. Make sure the replacement is compatible with your vehicle.
- Do not let the wiper arm hit the windshield. Always control the arm when lowering it.
- Do not force the new blade into place. Check the fixing system if it does not fit correctly.
- Do not skip the final test. Always check the wiper system using washer fluid after installation.
How do you know the new wiper blades are installed correctly?
After installation, the blades should move smoothly across the windshield and maintain proper contact with the glass.
Check for:
- Clear wiping
- No streaks or unwiped areas
- Smooth movement
- No unusual noise or vibration
- A secure connection between the blade and wiper arm
If the wipers do not perform correctly, stop and check the installation and condition of the wiper arm.
Wiper Blade Replacement FAQ
Can I replace wiper blades myself?
Yes. Wiper blades can usually be replaced without specialist tools. The most important points are choosing the correct blade and following the installation instructions for the fixing system.
How do I know which wiper blades fit my car?
Check the DENSO catalogue for the correct application for your vehicle. Always make sure that the blade and fixing system match the wiper arm.
Why are my new wiper blades not wiping correctly?
First, check that the windshield and blade are clean and that the blade is correctly attached. Also inspect the wiper arm for damage or imperfections.
Correct installation helps ensure reliable wiping performance and clear visibility.
Find the correct DENSO wiper blades for your vehicle in the DENSO catalogue.