BMW 4 Series Wind Deflector (F33) 2014 – 2021 – GENUINE BMW PART. BMW 4 SERIES (F33) WIND DEFLECTOR. PRISTINE – NO HOLES IN MESH. Fits all 4 SERIES inc M4 2014 – 2021. The Wind Deflector makes driving more pleasant for the driver and passenger by providing a pocket of protection from draughts around your neck and shoulders, by dramatically reducing the air inside the car, even when travelling at high speeds. Extend the use of your convertible into colder months as it stops drafts between the seats – makes a huge difference for warmth within the car. The Mesh construction spans the width of the seating area and increases driving comfort without disrupting the convertible experience. Listen to your music, talk to your passenger, sound within the car improves with the wind deflector.