Wiper Blade Set Bosch Aerotwin A309S

Description

This 650 and 475 mm Bosch Aerotwin A309S wiper blade set is built with a frameless design.
The set of wipers A309S offers uninterrupted, all-weather performance for both blades in rainy conditions, snow, and high-temperature heat.

The Bosch A309S set of wiper blades offers an high-performance asymmetric fin, engineered for enduring performance in all conditions.
An asymmetric spoiler is strategically positioned to channel airflow into enhanced blade pressure while minimizing drag, applying extra pressure to the wind-facing edge so the blade hugs the glass during highway speeds. The result is reduced lift and chatter even in demanding high-speed scenarios.
Tailored for windy climates, this spoiler enhances stability for lasting clarity.

Frameless wiper blade delivers a modern tensioned beam, purpose-built to hold pinpoint wiping accuracy across complex windshield curves. A pre-curved spring-steel beam pairs with a premium silicone edge, ensuring a silent, streak-free sweep. Its low-drag aero spoiler reduces drag, while smart-fit mounting heads suits 95% of vehicles for rapid installation. The frameless build shrugs off snow and ice, eliminates corrosion points, and hugs modern glass shapes for superior visibility. Drawbacks: higher upfront cost, refill inserts are non-serviceable, plastic adapters may embrittle in severe cold, and clamping force declines slightly on very flat windshields. Rinse with pH-neutral soap every three months and replace every 12–24 months (6–12 months in extreme climates). Experience silent clarity – upgrade now.

Bosch Aerotwin – the flagship line from the respected European group Bosch. Windshield wipers in the Aerotwin family feature an modern frameless construction and are supplied to the plants of many leading vehicle makers. The wiping element is made from a high-tech composite rubber, offering better performance than natural rubber. Spring rails are produced from a special “Evodium” spring steel and preserve their original tension throughout the blade’s service life.