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BMW 750i Wiper Blade Insert

How to Diagnose BMW 750i Wiper Blade Insert Problems

Your BMW 750i wiper blade insert is a very essential component that keeps you safe when driving on rainy and snowy days. Without it, you won't be able to see the road clearly. But overtime, the rubber insert becomes severely damaged. When this happens, you'll experience a series of problems. To determine the culprits behind these wiper blade insert-related issues, simply follow these troubleshooting steps:

Screeching sound

Noise is one of the most common problems experienced in a wiper blade insert. When the squeaky sound becomes too loud, you and the other passengers in your vehicle will notice it right away. If you want to examine the blade insert further, observe your wipers while you're standing outside your car. If the sound gets even louder, it's time to examine your rubber blades. First, check if the blades are installed properly. Each rubber filler must be fitted snugly inside the channel. After this, lift the wiper blade, and keep it in upright position. Carefully inspect each blade for dirt build up. When the rubber blade is full of dust and grime, it won't glide smoothly on the windshield. It's the reason why you hear the annoying squeaky sound when your wipers are moving.

Loose mounting

If you noticed that one of your wiper blade inserts is missing, you should check the condition of the wiper channels right away. When the channels of the wiper assembly are extremely corroded, they won't be able to secure the blade inserts firmly. To troubleshoot, lift the wiper arm from the windshield. Find the two clips on each side of the blade. If you see that the clips are damaged, you might need to replace not just the blade inserts but the wiper assembly as well.

Stiff movement

A slow-moving wiper is really irritating. It can also lead to serious road accidents because you won't be able to see the road ahead. When you keep on experiencing such problem, check the speed that you've set for your wipers first. It's possible that the control is set to minimum speed. If the wiper is still moving slowly, it's time to check the rubber blade inserts. The rubber filler can get stiff especially when the temperature is cold. Add an anti-freeze product to your windshield cleaner to prevent your wiper blade inserts from freezing.

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  • Tips on How to Extend the Service Life of Your BMW 750i Wiper Blade Insert

    Your BMW 750i wiper blade insert is constantly exposed to heat, rain, and other harsh conditions. Because of this situation, the rubber filler usually doesn't last for years. Frequent blade insert replacement takes up so much of your time and money. Good thing, there are certain ways that you can do to somehow extend the service life of this component in your vehicle. If you want to know more about them, read on.


    Remove dirt and dust regularly.

    Most or the dirt settles underneath the wiper blade inserts. That's why you hardly notice the thick grime and filth. If you don't remove these contaminants, your wipers will just spread them all over your windshield. To clean your wiper blade rubber, mix a teaspoon of dishwashing soap in a pail of water. Wet a clean rag and wipe each of your blade insert. Be careful not to wet the joints to prevent corrosion.


    Secure the blade insert firmly.

    A wiper blade rubber can get disconnected to the wiper arm because of the constant motion of the vehicle. That's why it's important to make sure that your blade is properly attached to the channel to prevent them from falling off. Always inspect the channel for corrosion. Remember that a rusty channel won't be able to hold the rubber tightly. Don't forget to examine the retaining tabs to determine if some of them are missing.


    Prevent your wiper blade insert from freezing.

    Cold temperature can make your wiper blade rubber freeze. When this happens, your wiper will move extremely slowly. To prevent your wiper insert from freezing, pour ample amount of anti-freeze product into your windshield-cleaner tank. Also, park the car inside the garage when you're not driving to keep it protected from snow.


    Keep your wiper blade insert soft.

    A sure-fire way to make your blade rubber last is to keep it soft all the time. To do this, apply a liberal amount of silicone agent on your rubber filler. Wait for a few minutes until the rubber absorbs the product. Do this as often as possible to provide extra moisture for your wiper blade inserts.