WIJHJET Rear Spoiler Blade Instruction Manual

1. Product Overview

This manual provides essential information for the installation, operation, and maintenance of your new WIJHJET Rear Spoiler Blade. This product is designed to enhance the aerodynamic performance and aesthetic appeal of your vehicle.

The rear spoiler is an aerodynamic component that increases the traction of the rear tires by applying downforce through the airflow over the car body during driving. It contributes to vehicle stability at high speeds and reduces drag, improving energy efficiency.

2. Compatibility

This rear spoiler blade is specifically designed for the following BMW models:

• BMW F20 F21 116i (2012 - Present)
• BMW F20 F21 118i (2012 - Present)
• BMW F20 F21 120i (2012 - Present)
• BMW F20 F21 M135i (2012 - Present)

Please ensure your vehicle's model and year match the compatibility list before proceeding with installation.

3. Features

• Material: Made from lightweight and durable ABS plastic.
• Finish: Glossy Black coating for a sleek appearance.
• UV Protection: Features a clear UV-resistant coating to prevent fading and maintain color integrity.
• Aerodynamic Design: Engineered to improve vehicle aerodynamics, reduce drag, and enhance downforce for increased stability.
• Direct Replacement Fitment: Designed for straightforward installation.

4. Specifications

5. Setup and Installation

Installation of the WIJHJET Rear Spoiler Blade is designed to be straightforward. However, professional installation is recommended for optimal fitment and security.

Required Tools (Not Included):

• Automotive-grade adhesive or double-sided tape (if not pre-applied)
• Cleaning solution (e.g., isopropyl alcohol)
• Clean microfiber cloths
• Masking tape (for positioning)

Installation Steps:

1. Prepare the Surface: Thoroughly clean the area on your vehicle's rear roof where the spoiler will be installed. Use an automotive-grade cleaning solution to remove all dirt, wax, and grease. Allow the surface to dry completely.
2. Test Fit: Carefully place the spoiler on the intended installation area without removing any adhesive backing. This allows you to confirm the correct alignment and fitment. Use masking tape to mark the exact position.
3. Apply Adhesive (if necessary): If the spoiler does not come with pre-applied adhesive, apply a continuous bead of automotive-grade adhesive or strips of strong double-sided tape along the mounting surfaces of the spoiler. Ensure even coverage.
4. Install the Spoiler: Carefully align the spoiler with your marked positions. Press firmly and evenly across the entire length of the spoiler to ensure proper adhesion. Apply pressure for several minutes.
5. Secure (if applicable): If your spoiler requires additional fasteners (screws, clips), install them according to the specific instructions provided with your hardware kit.
6. Curing Time: Allow the adhesive to cure for at least 24-48 hours before driving the vehicle, especially at high speeds or in wet conditions. Refer to the adhesive manufacturer's instructions for specific curing times.

Image: The WIJHJET Rear Spoiler Blade in glossy black, perfectly fitted on a white BMW F20/F21 hatchback.

Image: The WIJHJET Rear Spoiler Blade, showcasing its sleek, glossy black finish and curved design.

6. Operating Instructions

The WIJHJET Rear Spoiler Blade is a passive aerodynamic component and does not require active operation. Once correctly installed, it functions continuously to improve the vehicle's stability and reduce drag, particularly at higher speeds. No user interaction is required for its operation.

7. Maintenance

Proper maintenance will ensure the longevity and appearance of your spoiler.

• Cleaning: Wash the spoiler regularly with mild automotive soap and water. Avoid abrasive cleaners or harsh chemicals that could damage the glossy finish or UV coating.
• Drying: Dry the spoiler with a soft, clean microfiber towel to prevent water spots.
• Waxing/Sealing: Apply a high-quality automotive wax or sealant periodically to protect the finish from environmental elements and maintain its shine.
• Inspection: Periodically inspect the spoiler for any signs of damage, loose fittings, or adhesive degradation. Address any issues promptly to prevent further damage or detachment.

8. Troubleshooting

If you encounter any issues with your WIJHJET Rear Spoiler Blade, consider the following:

• Poor Adhesion: If the spoiler is not adhering properly, ensure the surface was thoroughly cleaned and dried before installation. Temperature can also affect adhesive performance; ensure installation is done in moderate temperatures as per adhesive instructions. Re-application of automotive-grade adhesive may be necessary.
• Misalignment: If the spoiler appears crooked or misaligned, it may need to be carefully removed (if adhesive allows) and re-positioned. Ensure proper test fitting and marking of the position before final installation.
• Damage to Finish: Minor scratches can often be buffed out with a fine automotive polish. For deeper scratches or significant damage, professional repair or replacement may be required.

For persistent issues or concerns, please contact customer support.

9. Warranty and Support

For information regarding product warranty, returns, or technical support, please refer to the seller's policy on the platform where the product was purchased. Keep your proof of purchase for any warranty claims.

For direct assistance, please contact the WIJHJET customer service team through the contact information provided with your purchase or on the official product page.