No more whistling..
Hello (und entschuldige, dass ich English schreibe - geht viel besser für mich als Däne..),
I had a lot of problems with annoying whistling in my Cactus C4, but now it has been solved! The rubber around the front doors was causing the noise that typically appeared at speeds from 130 km/h and up - and with the wind against the card. The edge of the rubber was too lose and started vibrating which produced the whistling sound. My mechanic put something extra between the rubberlist and the metal and fixed it.
I'm just so happy...