1. Introducció
Thank you for choosing BOSCH Aerotwin Original Equipment Replacement Wiper Blades. This manual provides essential information for the proper installation, operation, and maintenance of your new wiper blades. The Aerotwin design offers superior performance and durability, ensuring clear visibility in various weather conditions.

Image: BOSCH Aerotwin Wiper Blade Packaging, showing the product name and sizes.
2. Informació de seguretat
- Always ensure the vehicle is parked on a level surface with the ignition off before attempting installation or maintenance.
- Exercise caution when handling wiper arms, as they can snap back and cause injury or damage to the windshield.
- Do not operate wipers on a dry windshield, as this can damage the blade rubber and scratch the glass.
- Mantingueu les fulles de recanvi fora de l'abast dels nens.
3. Contingut del paquet
Your BOSCH Aerotwin Wiper Blade set includes:
- 1 x 23-inch BOSCH Aerotwin Wiper Blade
- 1 x 19-inch BOSCH Aerotwin Wiper Blade
- Pre-assembled OE style adapter(s) for specific vehicle fitment
- Instruccions d'instal·lació (aquest manual)

Image: Two BOSCH Aerotwin wiper blades, ready for installation.
4. Especificacions
| Característica | Descripció |
|---|---|
| Marca | Bosch |
| Número de model | 3397007297 |
| Longituds de fulla | 23 inches (Driver Side), 19 inches (Passenger Side) |
| Tipus de muntatge | Top Lock Narrow (OE Style Adapter) |
| Material de la fulla | Dual rubber compound with graphite coating |
| Disseny | Patented beam design (bracketless) with asymmetrical wind spoiler |
| Tipus de servei del vehicle | Car (Vehicle Specific Fit) |
5. Configuració (Instal·lació)
The BOSCH Aerotwin wiper blades feature a pre-assembled OE-style adapter for simple and easy installation. No additional tools are typically required.
5.1. Preparació
- Park your vehicle on a level surface and turn off the ignition.
- Lift the wiper arm away from the windshield until it locks into the upright position. If your vehicle has a 'service mode' for wipers (e.g., Tesla Model Y), activate it via the vehicle's infotainment system to position the wiper arms correctly.
- Place a towel or soft cloth on the windshield beneath the wiper arm to prevent damage if the arm accidentally falls.
5.2. Removing Old Wiper Blades
- Locate the release tab or button on the existing wiper blade connector.
- Press the tab/button and slide the old wiper blade off the wiper arm hook or connector.
- Carefully lower the wiper arm back onto the towel on the windshield.
5.3. Installing New Wiper Blades
- Identify the correct blade for each side (23" for driver, 19" for passenger).
- Align the pre-assembled adapter on the new BOSCH Aerotwin blade with the wiper arm connector.
- Slide the new blade onto the wiper arm until it clicks securely into place. Gently pull on the blade to ensure it is firmly attached.
- Carefully lower the wiper arm back onto the windshield.
- Repeat the process for the other wiper blade.

Imatge: Primer pla view of the BOSCH Aerotwin wiper blade connector, highlighting the attachment point.
5.4. Guia de vídeo d'instal·lació
For a visual guide on installing BOSCH Aerotwin wiper blades, please refer to the video below. This video demonstrates the process for a similar product and can be helpful for understanding the steps.
Video: Official BOSCH Aerotwin Wiper Blade installation guide. This video demonstrates the simple installation process for the wiper blades.
6. Operating the Wiper Blades
Once installed, your BOSCH Aerotwin wiper blades are designed to provide exceptional all-weather performance. The patented beam design, combined with a specially blended dual rubber compound and graphite coating, ensures smooth, quiet, and streak-free operation.
- Optimal Contact: Dual precision-tensioned steel springs ensure uniform pressure along the entire blade length for crystal clear visibility.
- Rendiment aerodinàmic: The asymmetrical wind spoiler uses airflow to increase blade-to-windshield contact, maintaining consistent performance even at highway speeds.
- Durabilitat: The wind spoiler also protects the tension springs from damage by severe weather elements, contributing to increased durability and long life.

Image: BOSCH Aerotwin wiper blade effectively clearing water from a vehicle's windshield.
7. Manteniment
To maximize the lifespan and performance of your BOSCH Aerotwin wiper blades:
- Neteja regular: Periodically clean the rubber blade elements with a soft cloth and windshield washer fluid or mild soap and water. This removes dirt, grime, and road film that can cause streaking.
- Inspeccionar per danys: Regularly check the blade rubber for cracks, tears, or hardening. Replace blades if any damage is observed.
- Eviteu netejar en sec: Always use windshield washer fluid when operating wipers to lubricate the blades and prevent premature wear.
- Cura d'hivern: In freezing conditions, ensure blades are not frozen to the windshield before operating. Gently lift them away or use a defroster to thaw.

Image: Close-up of the durable rubber element of a BOSCH Aerotwin wiper blade.
8. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| Streaking or Smearing | Fulla bruta, goma desgastada o contaminació del parabrisa. | Clean blades and windshield. If problem persists, replace blades. |
| Chattering or Skipping | Blade angle incorrect, bent wiper arm, or dry windshield. | Ensure proper installation. Check wiper arm for bends. Use washer fluid. |
| Zones no escombrades | Incorrect blade length, bent wiper arm, or insufficient pressure. | Verify correct blade size for your vehicle. Inspect wiper arm for damage. |
| Soroll (grills/grills) | Dry windshield, dirty blade, or worn rubber. | Use washer fluid. Clean blades. Replace if worn. |
9. Garantia i Suport
BOSCH Aerotwin wiper blades are manufactured to high-quality standards. For warranty information or technical support, please refer to the official Bosch Automotive weblloc web o poseu-vos en contacte amb el vostre centre de servei local de Bosch. Conserveu el rebut de compra com a comprovant de compra.
Per a més ajuda, podeu visitar el Botiga d'automòbils Bosch a Amazon.