The reason for this was that gave the unabridged original wiper annoying noises.
Have now for 1 week, the Bosch Aerotwin verbaut.Montage was easy!
Well what can I sagen.Das difference is like day and night!
No more GreƤusche when Wischen.Man no longer hear the windshield wipers!
Wiping result is really great!
Now it only remains to be seen how long the wiper.