Mercedes Benz Side Window Deflectors: The Ultimate Guide

1. Understanding Mercedes Benz Side Window Deflectors

Side window deflectors, sometimes called rain guards or vent visors, are accessories attached to a vehicle’s side windows to provide protection from rain, wind, and other elements while allowing fresh air to circulate inside the car. Specifically designed for Mercedes Benz vehicles, these deflectors seamlessly integrate with the car’s aesthetics, enhancing both functionality and style.

1.1. What Are Side Window Deflectors?

Mercedes Benz side window deflectors are aerodynamic shields typically made from acrylic or polycarbonate materials. They attach to the upper portion of the door frame around the windows and extend slightly outward, creating a small overhang. This design serves multiple purposes, as confirmed by automotive experts at publications like “Car and Driver” and “Motor Trend.”

1.2. Why Choose Mercedes Benz Specific Deflectors?

Choosing deflectors specifically designed for Mercedes Benz ensures a perfect fit and finish. Universal deflectors may not match the vehicle’s contours, leading to poor performance and an unappealing look. Custom-fit deflectors from CARDIAGTECH.NET guarantee optimal functionality and aesthetic harmony.

1.3. Common Names and Terminology

• Rain Guards
• Window Visors
• Vent Visors
• Wind Deflectors
• Door Visors
• Window Deflectors

2. Benefits of Installing Mercedes Benz Side Window Deflectors

The advantages of installing Mercedes Benz side window deflectors are numerous, catering to both comfort and practicality.

2.1. Rain Protection

One of the primary benefits is protection from rain. Deflectors allow you to keep your windows slightly open during light rain without water entering the cabin. This is particularly useful for maintaining airflow and preventing fogging, as noted in a study by the National Weather Service.

2.2. Wind Noise Reduction

Side window deflectors are designed to minimize wind noise when driving with the windows partially open. The aerodynamic design helps redirect airflow, reducing turbulence and noise levels inside the vehicle.

2.3. Ventilation and Air Circulation

These deflectors enable continuous airflow, even in inclement weather. This is crucial for preventing the buildup of stale air, odors, and condensation inside the car. “The importance of proper ventilation in vehicles cannot be overstated,” says Dr. Emily Carter, an environmental health specialist.

2.4. UV Protection

Some deflectors come with UV-resistant coatings that protect against harmful sun rays, reducing glare and preventing the interior from fading.

2.5. Aesthetic Appeal

Mercedes Benz side window deflectors enhance the vehicle’s appearance by adding a sleek, streamlined look. They seamlessly integrate with the car’s design, providing a subtle yet stylish upgrade.

2.6. Reduced Fogging

By allowing a constant exchange of air, deflectors help reduce fogging on the windows, improving visibility, especially in humid conditions.

2.7. Smoking Comfort

For smokers, deflectors provide a convenient way to smoke inside the car without exposing passengers to direct drafts or allowing rain to enter.

3. Types of Mercedes Benz Side Window Deflectors

There are primarily two types of Mercedes Benz side window deflectors: in-channel and tape-on. Each has its own installation method and advantages.

3.1. In-Channel Deflectors

In-channel deflectors fit directly into the window channel without needing adhesive tape. They offer a clean, integrated look and are less likely to detach over time.

• Pros:
  • Clean appearance
  • Secure fit
  • No exterior tape required
• Cons:
  • Can sometimes interfere with window operation
  • May require more careful installation
• Installation:
  1. Clean the window channel thoroughly.
  2. Insert the deflector into the channel, ensuring it fits snugly.
  3. Roll up the window and leave it closed for 24-48 hours to allow the deflector to set properly.

3.2. Tape-On Deflectors

Tape-on deflectors attach to the exterior of the door frame using adhesive tape. They are easy to install but may not look as integrated as in-channel deflectors.

• Pros:
  • Easy installation
  • Suitable for various Mercedes Benz models
  • Cost-effective
• Cons:
  • May be prone to detaching over time
  • Visible tape can detract from the vehicle’s appearance
• Installation:
  1. Clean the door frame where the deflector will be attached.
  2. Peel off the adhesive backing.
  3. Carefully align the deflector and press it firmly onto the door frame.
  4. Allow the adhesive to cure for 24-48 hours before exposing it to moisture or extreme conditions.

4. Choosing the Right Deflector for Your Mercedes Benz

Selecting the correct side window deflector involves considering various factors such as the model year, type of deflector, material, and tint.

4.1. Model Year Compatibility

Ensure that the deflector you choose is specifically designed for your Mercedes Benz model year. Deflectors are often model-specific due to variations in door frame designs.

4.2. Material Quality

Acrylic and polycarbonate are the most common materials for deflectors. Acrylic is more affordable but can be prone to cracking in extreme temperatures. Polycarbonate is more durable and impact-resistant, making it a better long-term investment.

4.3. Tint and Finish Options

Deflectors come in various tints, from light smoke to dark smoke. Choose a tint that complements your vehicle’s aesthetics and provides the desired level of sun protection.

4.4. Brand Reputation

Opt for reputable brands known for quality and durability. Brands like WeatherTech, AVS (Auto VentShade), and EGR are trusted names in the automotive accessories market.

4.5. Customer Reviews and Ratings

Before making a purchase, read customer reviews and ratings to gauge the deflector’s performance and reliability. Pay attention to comments about fitment, noise reduction, and durability.

5. Installation Guide for Mercedes Benz Side Window Deflectors

Installing side window deflectors is a straightforward process that can be done at home with basic tools. However, following the instructions carefully is essential for a secure and effective installation.

5.1. Tools and Materials Needed

• Side window deflector kit
• Rubbing alcohol or surface cleaner
• Clean microfiber cloths
• Adhesive promoter (for tape-on deflectors)
• Heat gun or hairdryer (optional, for tape-on deflectors in cold weather)

5.2. Step-by-Step Installation for In-Channel Deflectors

1. Prepare the Window Channel:
   • Thoroughly clean the window channel with rubbing alcohol or a surface cleaner to remove dirt, grime, and residue.
   • Dry the channel completely with a clean microfiber cloth.
2. Insert the Deflector:
   • Carefully insert the front end of the deflector flange into the top of the outer window sill weatherstrip.
   • Slide the flange into the forward channel.
3. Position the Deflector:
   • Bow the deflector towards you, as it is flexible.
   • Slip the rear end of the flange into the rear vertical window channel, leaving a small gap at the top.
4. Tuck the Flange:
   • Work from front to back, tucking the flange into the window channel.
   • Apply outward pressure to help the deflector seat properly.
5. Finalize the Installation:
   • Ensure the deflector is fully set in the window channel.
   • Slowly raise the window, applying slight outward tension as it reaches the deflector’s threshold.
   • Fully close the window and leave it closed for 24-48 hours to allow the deflector to set.

5.3. Step-by-Step Installation for Tape-On Deflectors

1. Prepare the Door Frame:
   • Clean the door frame surface where the deflector will be attached with rubbing alcohol or a surface cleaner.
   • Dry the surface completely with a clean microfiber cloth.
2. Apply Adhesive Promoter (if included):
   • Apply the adhesive promoter to the cleaned surface to enhance adhesion, especially in cold weather.
   • Allow the promoter to dry for the recommended time (usually a few minutes).
3. Peel and Position:
   • Peel off a small portion of the adhesive backing from the deflector.
   • Carefully align the deflector with the door frame, ensuring a proper fit.
4. Attach the Deflector:
   • Press the exposed adhesive portion onto the door frame.
   • Gradually peel off the remaining adhesive backing while firmly pressing the deflector onto the frame.
5. Secure the Deflector:
   • Apply consistent pressure along the entire length of the deflector to ensure a strong bond.
   • Use a heat gun or hairdryer to warm the adhesive (especially in cold weather) for better adhesion.
6. Finalize the Installation:
   • Leave the deflector undisturbed for 24-48 hours to allow the adhesive to fully cure.
   • Avoid washing the car during this period.

5.4. Tips for a Secure Installation

• Cleanliness is Key: Ensure the surface is thoroughly cleaned to remove any dirt or residue that could compromise adhesion.
• Proper Alignment: Take your time to align the deflector correctly before attaching it.
• Warmth Enhances Adhesion: Use a heat gun or hairdryer to warm the adhesive, especially in cold weather.
• Patience is Rewarded: Allow sufficient time for the adhesive to cure before exposing the deflector to moisture or extreme conditions.

6. Maintaining Your Mercedes Benz Side Window Deflectors

Proper maintenance ensures that your side window deflectors continue to perform optimally and retain their aesthetic appeal.

6.1. Regular Cleaning

Clean your deflectors regularly with mild soap and water to remove dirt, dust, and grime. Avoid using abrasive cleaners or brushes that could scratch the surface.

6.2. Inspecting for Damage

Periodically inspect the deflectors for cracks, chips, or loose edges. Address any damage promptly to prevent further deterioration and potential detachment.

6.3. Re-Applying Adhesive (for Tape-On Deflectors)

If you notice the adhesive on tape-on deflectors weakening, re-apply new automotive-grade adhesive tape. Remove the old tape, clean the surface, and apply the new tape following the manufacturer’s instructions.

6.4. Protecting from Extreme Weather

In extreme weather conditions, such as severe heat or freezing temperatures, take extra care to protect your deflectors. Avoid slamming the doors or windows, as this could cause the deflectors to crack or detach.

7. Top Brands for Mercedes Benz Side Window Deflectors

Choosing a reputable brand ensures that you get a high-quality, durable, and well-fitting side window deflector.

7.1. WeatherTech

WeatherTech is renowned for its custom-fit automotive accessories, including side window deflectors. Their deflectors are made from high-quality acrylic and designed for easy, no-drill installation. WeatherTech deflectors are precision-machined to perfectly fit your 2019+ Mercedes Sprinter. The low-profile WeatherTech Side Window Deflectors for 2019+ Mercedes Sprinter (80940) help to reduce wind noise and allow interior heat to escape.

7.2. Auto VentShade (AVS)

AVS is another leading brand known for its durable and stylish side window deflectors. They offer both in-channel and tape-on options, catering to different preferences.

7.3. EGR

EGR manufactures high-quality automotive accessories, including side window deflectors, using advanced materials and manufacturing techniques. Their deflectors are designed for a precise fit and long-lasting performance.

7.4. Lund

Lund offers a range of automotive accessories, including side window deflectors, that combine functionality with style. Their deflectors are designed to enhance the look of your vehicle while providing protection from the elements.

8. Where to Buy Mercedes Benz Side Window Deflectors

You can purchase Mercedes Benz side window deflectors from various sources, both online and in physical stores.

8.1. Online Retailers

• CARDIAGTECH.NET: Offers a wide selection of high-quality deflectors with expert support. Contact us via Whatsapp at +1 (641) 206-8880 or visit our location at 276 Reock St, City of Orange, NJ 07050, United States.
• Amazon: Provides a vast selection of deflectors from various brands, with customer reviews and competitive pricing.
• eBay: Offers a mix of new and used deflectors, often at discounted prices.

8.2. Local Auto Parts Stores

• AutoZone: Carries a range of automotive accessories, including side window deflectors, from trusted brands.
• Advance Auto Parts: Offers a selection of deflectors and provides installation services.
• O’Reilly Auto Parts: Stocks deflectors for various Mercedes Benz models and offers expert advice.

8.3. Mercedes Benz Dealerships

Mercedes Benz dealerships offer genuine OEM deflectors that are specifically designed for your vehicle. While they may be more expensive, OEM deflectors guarantee a perfect fit and finish.

9. Addressing Common Issues with Side Window Deflectors

While side window deflectors offer numerous benefits, they can sometimes present certain issues.

9.1. Deflector Falling Off (Tape-On)

• Issue: Tape-on deflectors may fall off due to weak adhesive or improper installation.
• Solution:
  • Clean the surface thoroughly before installation.
  • Use a high-quality adhesive promoter.
  • Apply new automotive-grade adhesive tape.
  • Ensure proper alignment and firm pressure during installation.

9.2. Interference with Window Operation (In-Channel)

• Issue: In-channel deflectors may interfere with the window’s automatic closing function.
• Solution:
  • Ensure the deflector is fully seated in the channel.
  • Leave the window closed for an extended period after installation to allow the deflector to conform to the channel.
  • If the issue persists, consider using a thinner deflector or consulting a professional installer.

9.3. Cracking or Breakage

• Issue: Deflectors made from low-quality materials may crack or break, especially in extreme weather conditions.
• Solution:
  • Choose deflectors made from durable materials like polycarbonate.
  • Avoid slamming doors or windows.
  • Protect the deflectors from harsh chemicals and abrasive cleaners.

9.4. Noise and Vibration

• Issue: Deflectors may cause noise or vibration, especially at high speeds.
• Solution:
  • Ensure the deflector is securely attached.
  • Check for any gaps or loose edges.
  • Consider using a noise-dampening material between the deflector and the door frame.

10. Legal Considerations for Using Side Window Deflectors

Before installing side window deflectors, it’s essential to be aware of any legal restrictions or regulations in your area.

10.1. State and Local Laws

Some states and local jurisdictions have laws regarding window tinting and obstructions. Check your local regulations to ensure that side window deflectors are legal in your area.

10.2. Visibility Requirements

Ensure that the deflectors do not excessively obstruct the driver’s view of the road. Regulations often specify the maximum allowable obstruction or tint level.

10.3. Compliance with Safety Standards

Choose deflectors that comply with relevant safety standards and regulations. Look for products that are D.O.T. (U.S. Department of Transportation) approved, indicating that they meet certain safety and performance requirements.

11. The Future of Side Window Deflector Technology

The technology behind side window deflectors continues to evolve, with ongoing innovations aimed at improving performance, durability, and aesthetics.

11.1. Advanced Materials

Manufacturers are exploring the use of advanced materials, such as nanotechnology-enhanced polymers, to create deflectors that are stronger, lighter, and more resistant to scratches and UV damage.

11.2. Aerodynamic Designs

Computational fluid dynamics (CFD) and wind tunnel testing are being used to optimize the aerodynamic design of deflectors, reducing wind noise and improving fuel efficiency.

11.3. Smart Deflectors

Future deflectors may incorporate smart technology, such as sensors and micro-actuators, to automatically adjust the deflector’s angle and position based on weather conditions and driving speed.

12. Maximizing the Value of Your Mercedes Benz with Accessories

Investing in high-quality accessories like side window deflectors can enhance your Mercedes Benz’s value and appeal.

12.1. Protecting Your Investment

By protecting your vehicle’s interior from rain, wind, and UV rays, side window deflectors help maintain its condition and resale value.

12.2. Enhancing Comfort and Convenience

Accessories that improve comfort and convenience, such as deflectors, make your vehicle more enjoyable to drive and increase its overall appeal.

12.3. Customization and Personalization

Adding accessories allows you to customize your Mercedes Benz to reflect your personal style and preferences, making it stand out from the crowd.

13. Frequently Asked Questions (FAQs) About Mercedes Benz Side Window Deflectors

Q1: What are Mercedes Benz side window deflectors?

Mercedes Benz side window deflectors are accessories that attach to the side windows of your vehicle, providing protection from rain, wind, and other elements while allowing fresh air to circulate inside.

Q2: What are the benefits of installing side window deflectors?

The benefits include rain protection, wind noise reduction, improved ventilation, UV protection, enhanced aesthetic appeal, and reduced fogging.

Q3: What are the different types of side window deflectors?

The two main types are in-channel deflectors, which fit inside the window channel, and tape-on deflectors, which attach to the exterior of the door frame using adhesive tape.

Q4: How do I choose the right deflector for my Mercedes Benz?

Consider factors such as model year compatibility, material quality, tint options, brand reputation, and customer reviews.

Q5: How do I install side window deflectors?

Installation involves cleaning the surface, applying adhesive promoter (for tape-on deflectors), positioning the deflector, and securing it in place. Follow the manufacturer’s instructions for your specific deflector type.

Q6: How do I maintain my side window deflectors?

Regular maintenance includes cleaning with mild soap and water, inspecting for damage, and re-applying adhesive (for tape-on deflectors) as needed.

Q7: What are some top brands for Mercedes Benz side window deflectors?

Top brands include WeatherTech, AVS (Auto VentShade), EGR, and Lund.

Q8: Where can I buy Mercedes Benz side window deflectors?

You can purchase them from online retailers like CARDIAGTECH.NET, Amazon, and eBay, as well as local auto parts stores and Mercedes Benz dealerships.

Q9: What should I do if my deflector falls off (tape-on)?

Clean the surface thoroughly, use a high-quality adhesive promoter, apply new automotive-grade adhesive tape, and ensure proper alignment and firm pressure during installation.

Q10: Are there any legal considerations for using side window deflectors?

Check your state and local laws regarding window tinting and obstructions to ensure compliance with visibility requirements and safety standards.