Well, after about 6 years (!) Runtime smeared the Aerotwin a bit longer to himself, because it would not be better, I have to get myself decided new wiper (have never squeaked or rattled!). Of course, there were again the Aerotwin in the same size. The car is also still the same and yet: The wipers squeak and rattle at the outer edge and in the middle of the driver's wiper. The rubber does not rotate easily at these points. The problem occurs (smallest wiper setting or disc plaster adjustment) in a easy to moderate eating disk. In heavy rain, the rattle in the middle remains out, however, remains a slight squeaking on the edge. Is the disc, however, quite dry, so the rattles and squeaks from na remains thanks! The wipers are about 1 month on the car and it has not become any better.
Even with the car my father rattles the driver of wiper Aerotwin and since more than 1 year is already on the car. However, where they rattle only at a slightly wet disc. If it rains a little more is all in the green zone.
Whether this is to long-term storage or the new quality standards of the gums, I dare not judge. Fact is, the Bosch Aerotwin are nothing special in my eyes. Had I resorted to a different size or installed on another car would be something else, but I have a direct comparison.
Otherwise, the wiping pattern (in the places where nothing rattles) exemplary. Very clean and not the slightest signs of streaking.
Seems as if the only remaining advantage of the Aerotwin the slightly increased forward visibility, since they have no disturbing metal bracket as conventional wipers.
Guess I will give the Aerotwin thereafter only once more another chance and if nothing is, change brands. Because the standard metal Bügelwischer this brand are good on my car anything (and my 2 previous vehicles not overly).
CONCLUSION
It surprised me why the newly purchased Aero Twin (2 vehicles tested) the purchased years ago are so inferior. The previous model I would give safe 5 star, but of the new purchase, I am sorely disappointed, so there's a maximum of 3 Mainly due to the very clean mop image, at the points where the wiper does not start and during heavy rains, and because I continue to me the better view've gotten used to the front.
