Wind deflectors (or side window deflectors) is not just a stylish accessory, but a practical addition that protects the interior from rain, snow and dust when the windows are open. Many car owners install them themselves, but without the correct instructions, mistakes can be made: from crooked installation to damage to the paintwork. In this article we will look at step-by-step technology for installing windshields, we will select the necessary tools and materials, and also show how to avoid typical problems.
If you have never done this kind of work, don’t worry: the process does not require professional skills. The main thing is patience and attention to detail. And for clarity, we have prepared video instructions with expert comments that will help you understand the nuances. Let's start with preparation!
1. Which windbreakers to choose: types and materials
Before purchasing, it is important to decide on the type of deflectors. They differ not only in design, but also in material, mounting method and compatibility with the car model. An error in selection can lead to wind deflectors being whistle at speed or they will quickly fall off.
Main types:
- 🔹 Acrylic - light, transparent, but less durable. Suitable for budget car models.
- 🔹 Polyurethane - flexible, shock-resistant, but may turn yellow over time.
- 🔹 ABS plastic - strong, durable, but heavier and more expensive.
- 🔹 Carbon — a premium option for tuned cars.
Wind deflectors are also divided according to the method of fastening:
- 🔧 With double-sided tape - simple installation, but requires a perfectly clean surface.
- 🔧 On clips or screws - more reliable, but more difficult to install.
- 🔧 Combined - combine adhesive tape and mechanical fastening.
Advice: before purchasing, check whether the windshields are suitable for your car model. For example, deflectors for Toyota Camry 2020 may not be suitable for Camry 2018 due to changes in the shape of the doors.
2. Necessary tools and materials
To install windshields with your own hands, prepare:
| Tool/material | Purpose | Where to buy |
|---|---|---|
| Double sided tape 3M VHB or equivalent | For fixing windshields (if not included) | Auto stores, AliExpress |
| Degreaser (White spirit, Isopropyl alcohol) | Cleaning the surface before gluing | Construction stores |
| Masking tape | Body marking and protection | Any economic |
| Plastic spatula or credit card | To press the tape evenly | Home Arsenal |
| Hairdryer (construction or household) | Warming up the tape for better adhesion | Household appliances |
⚠️ Attention: Do not use regular office tape instead of painter's tape - it leaves marks on the paint. Also avoid acetone for degreasing: it can damage the varnish.
If the wind deflectors come with clips, you will also need:
- 🔨 Screwdriver (phillips or flat)
- 🔨 Pliers
- 🔨 Drill with a thin drill bit (if you need to make holes)
Before buying adhesive tape, check its width - it should coincide with the mounting groove on the windshield. Tape that is too narrow will not provide reliable fixation.
3. Preparing the car for installation
How long the windbreakers will last depends on the quality of preparation. If you skip this step, you risk the deflectors peeling off in a couple of weeks.
Step-by-step preparation:
- Wash the car, especially the area around the windows. Use car shampoo to remove grease and road grime.
- Dry the surface with a hairdryer or let the car dry naturally (at least 30 minutes).
- Degrease the attachment points with tape. Apply the product to a lint-free cloth and wipe the surface twice (the first time removes dirt, the second removes product residues).
- Apply masking tape along the contour of the future fastening to protect the paint from accidental scratches.
⚠️ Attention: Do not install in temperatures below +10°C or in direct sunlight. Optimal conditions: +15…+25°C in the shade.
If the body has chips or scratches in the fastening area, it is better to repair them anti-corrosion composition and polish. Wind deflectors should not cover damaged areas - this will accelerate corrosion.
☑️ Preparation for installing wind deflectors
4. Step-by-step instructions for installing wind deflectors
Let's consider two installation methods: with tape and with clips. The first is suitable for most universal models, the second is for deflectors with mechanical fastening.
Method 1: Installation with double-sided tape
Step 1. Try the windshield on the window without removing the protective film from the tape. Make sure it fits snugly all the way around. If there are gaps, adjust the deflector by slightly heating it with a hairdryer (this will make the plastic more flexible).
Step 2. Carefully remove the protective tape from the tape on the windshield. Do not touch the adhesive surface with your hands!
Step 3. Place the deflector against the window, starting at the front edge. Smoothly press it against the body, moving towards the rear. Use a plastic spatula to distribute pressure evenly.
Step 4. Warm the tape with a hairdryer (temperature ~50°C) for 1–2 minutes. This will enhance adhesion. Do not overheat - the plastic may become deformed!
Step 5. Remove the masking tape and check the seal: open the window and try to insert a sheet of paper between the windshield and the body. If the sheet does not pass through, the installation was performed correctly.
Method 2: Installation with clips
This method is more reliable, but requires caution. If the kit does not include holes for the clips, you will have to drill them yourself - this is risky for beginners.
Step 1. Mark the locations for the clips with a pencil or masking tape. They are usually located at the bottom of the deflector.
Step 2. Drill holes with a diameter that matches the clips. Use metal drill and operate at low speeds to avoid damaging the paint.
Step 3. Insert the clips into the holes and secure them on the back side (you may need to remove the door trim).
Step 4. Place the windshield on the clips and snap it into place. Adjust position if necessary.
⚠️ Attention: If you are not confident in your drilling skills, it is better to entrust this work to professionals. An error can lead to body corrosion.
What to do if the windshield lags after installation?
If after 1-2 days the deflector begins to come off, warm the tape with a hairdryer and press the wind deflector firmly for 1-2 minutes. If the problem persists, replace the tape with a better quality one (for example, 3M 4950).
5. Common mistakes and how to avoid them
Even with the apparent simplicity of installation, many car owners make mistakes that shorten the service life of windshields. Here are the most common:
- 🚫 Dirty surface — the tape does not stick to greasy or dusty areas. Always degrease the body!
- 🚫 Wrong choice of tape - cheap glue loses its properties after a couple of weeks. Use only specialized compounds.
- 🚫 Overheating of plastic — if you heat the windshield too much with a hairdryer, it may become deformed or lose transparency.
- 🚫 Ignoring temperature conditions - Installation in cold weather results in poor adhesion.
- 🚫 Too much pressure — when pressing the windshield, do not overdo it, otherwise the tape will “drown” in the paint and lose its grip.
Another common problem is windshield whistle at speed. This happens due to:
- 🔊 Not a tight fit to the body (check the tightness).
- 🔊 Plastic deformation (warm the deflector with a hairdryer and level it).
- 🔊 Incorrect installation angle (the wind deflector should run parallel to the window).
If the whistle does not disappear, try sticking it on the inside of the deflector anti-noise tape (sold in auto stores).
High-quality installation of windshields depends 70% on surface preparation and 30% on correct installation. Don't skimp on degreaser and tape!
6. Caring for wind deflectors: how to extend their service life
Wind deflectors do not require complex maintenance, but a few simple rules will help maintain their appearance and functionality:
- 🧼 Washing - use a soft sponge and car shampoo. Do not scrub the plastic with hard brushes.
- 🧴 Polishing - apply once every 2-3 months wax polish for protection against UV rays.
- ❄️ Winter care - do not scrape off the ice, use lock defroster.
- 🔧 Checking fasteners — once a season, inspect the tape or clips. If necessary, glue the lagging areas.
If there are scratches on the windshields, they can be removed polish for plastic (for example, Sonax Plastic Polish). Unfortunately, deep damage cannot be restored; the deflectors will have to be replaced.
The service life of high-quality windshields is 3–5 years. After this, the plastic becomes dull and the tape loses its stickiness. If the deflectors begin to turn yellow or come off, it is better to replace them.
To remove yellow deposits from polyurethane windshields, use a paste of baking soda and water (1:1). Apply for 5 minutes, then rinse. Do not use harsh chemicals!
7. Video instructions: the best videos for visual editing
Theory is good, but practice is more important. We have selected proven videos that will help you understand the installation nuances:
- 🎥 Installing windshields with tape (universal method) - detailed analysis for beginners.
- 🎥 Clip mounting for Toyota RAV4 — an example of working with mechanical fastening.
- 🎥 How to avoid whistling windshields — adjustment tips.
Pay attention to the comments under the video - they often discuss typical problems and ways to solve them. For example, in the video about Hyundai Solaris Many people complain about the tape peeling off after a month. The author recommends using 3M VHB 4910 instead of the standard one.
If you haven't found a video for your car model, look for videos by request "installation of windshields [your make and model]"Usually enthusiasts share their experiences even for rare cars.
FAQ: Frequently asked questions about installing windshields
Is it possible to install wind deflectors in winter?
Technically yes, but the adhesion of the tape will be weak. If the temperature is below +10°C, warm the surface with a hairdryer before installation. It's better to wait for warm weather.
What to do if the windshield prevents you from closing the window?
Most likely the deflector is set too low. Carefully bend it over (heat it with a hairdryer) and re-glue it 2–3 mm higher. Check if it touches the glass when moving.
How to remove old windshields without damaging the paint?
Use thread or fishing line: pass it under the deflector and saw the tape like a string. Then remove any remaining glue white spirit or special cleaner (for example, 3M Adhesive Remover).
How much do wind deflectors cost and where is the best place to buy them?
The price depends on the material and brand:
- Budget (acrylic) - from 800 rub. per set.
- Middle segment (polyurethane) - 1500–3000 rubles.
- Premium (carbon, ABS) - 4000–8000 rub.
Buy from trusted stores: Autolight, Exist.ru, Kufar.by (for Belarus). Avoid AliExpress, if you are not sure about the seller, they often send non-original products.
Do I need to remove the windshields before washing?
No, high-quality deflectors can withstand contactless washing. But if you use high pressure apparatus, keep the nozzle at a distance of 30+ cm to avoid tearing off the windshields.